EPF10K70RC240-3N - FLEX 10K FPGA, 70K Gates, 240-RQFP | Intel EPF10K70RC240-3N by Intel - electronic component
Intel

EPF10K70RC240-3N - FLEX 10K FPGA, 70K Gates, 240-RQFP | Intel

MPN: EPF10K70RC240-3N ✗ End of Life
In Stock Ships in 1-3 business days
5.0 V Vdss 5.0 V tolerant, 3.3 V, 2.5 V (MultiVolt) Rds(on) 240-pin RQFP (BFQFP with exposed pad) Package -3 (0.5 ns typical propagation delay) Speed
From $95 USD / Unit
MOQ: 1 |
Price updated: 2026-09-11
Volume Pricing
Qty Unit Price Extended
1 $145 $145.00
10 $130.5 $1,305.00
100 $118 $11,800.00
500 $105 $52,500.00
1,000 $95 $95,000.00
ℹ️ All prices are in USD
View Datasheet (PDF) View Alternatives

EPF10K70RC240-3N Overview

The Intel (formerly Altera) EPF10K70RC240-3N is a member of the FLEX 10K family of SRAM-lookup-table-based Field Programmable Gate Arrays, offering 70,000 equivalent gates, 3,744 logic cells (LEs), 18,432 RAM bits, and 189 user I/Os in a 240-pin RQFP (BFQFP with exposed pad) package. The "-3" speed grade denotes a commercial-grade timing bin with a 0.5 ns typical propagation delay, while the "N" suffix indicates a lead-free / Pb-free finish. It is fabricated on a 0.42 µm CMOS SRAM process, supports 5.0 V tolerant inputs, and operates from a 5 V VCCINT/VCCIO supply rail.

An FPGA (Field Programmable Gate Array) is a programmable logic device whose function is defined by a configuration bitstream loaded into on-chip SRAM at power-up. Each logic element contains a 4-input LUT, a programmable register, and a carry chain; logic elements are grouped into Logic Array Blocks (LABs) and LABs are stitched together by a continuous routing network. The FLEX 10K family pioneered the embedded-array-block (EAB) concept, where each EAB provides up to 2,048 bits of dual-port RAM or a small ROM/FIFO function, making the family suitable for datapath, glue logic, and PCI-bus bridge designs.

Key features include PCI SIG Revision 2.2 compliance for plug-and-play host-bridge designs, MultiVolt I/O support for interfacing 5.0 V, 3.3 V and 2.5 V buses without external level shifters, on-chip JTAG (IEEE 1149.1) boundary-scan, passive parallel asynchronous configuration via EPROM or microcontroller, and standby currents typically under 5 mA. The device exposes 189 general-purpose I/Os arranged in four I/O banks with programmable slew-rate and pull-up resistors.

The EPF10K70RC240-3N is supported by the Altera MAX+PLUS II and Quartus II (legacy 9.x and earlier) design suites, which provide synthesis, place-and-route, simulation, and programming file generation. Designers moving to active development should note that FLEX 10K is a mature, legacy family and Intel/Arrow support is limited to long-term stock channels.

Typical applications include PCI bus interface controllers, industrial glue-logic replacement, telecom backplane bridging, and legacy ASIC prototyping where pin-compatible migration is required. Engineers should verify configuration memory selection and JTAG chain integrity before volume deployment.

Drop-in alternatives for EPF10K70RC240-3N — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.

Variants in this series

Same-series models that are drop-in compatible with EPF10K70RC240-3N (same form factor and footprint) — differing in Operating Temperature, Package, Family, Configuration Method, RoHS Status.

Altera
Operating Temperature: -40 °C to +85 °C (Industrial, I grade)
Package: 240-BFQFP (PQFP)
Family: FLEX 10KE Embedded Programmable Logic
Compare with EPF10K70RC240-3N →
Intel
Operating Temperature: 0°C to +70°C (commercial)
Package: 240-BFQFP Exposed Pad (RQFP, gull-wing)
RoHS Status: unknown
Compare with EPF10K70RC240-3N →
Intel
Operating Temperature: 0 °C to 70 °C (Commercial)
Compare with EPF10K70RC240-3N →
Altera
Operating Temperature: 0°C to 70°C (Commercial)
Package: 240-BFQFP Exposed Pad (RQFP-240)
Family: FLEX-10K (Classic)
Compare with EPF10K70RC240-3N →
Intel
Operating Temperature: 0 C to +70 C (Commercial)
Package: 240-RQFP (RQFP-240) Exposed Pad, 32 x 32 mm
Configuration Method: Serial PROM / JTAG (IEEE 1149.1)
Compare with EPF10K70RC240-3N →
Altera
Operating Temperature: 0 °C to +70 °C (Commercial)
Package: 240-BFQFP Exposed Pad (RQFP-240, Gull-Wing)
Family: FLEX-10K
Compare with EPF10K70RC240-3N →
Altera
Package: 240-RQFP (RQFP-240, exposed pad)
Family: FLEX-10K SRAM-lookup-table FPGA
RoHS Status: Non-compliant (legacy 5 V device)
Compare with EPF10K70RC240-3N →

Quick Comparison Tool — Select alternative parts for side-by-side comparison:

EPF10K70RC240-3

✅ Drop-In
Altera
📦 240-RQFP
FLEX-10K · FLEX-10K (Classic) · 70,000 · 3,744 · 468 · 9 (per family datasheet) · 189 · 18,432 (typical)

✓ In Stock

$19.85 / Unit

View Datasheet →

EPF10K70RC240-2N

Intel
📦 240-RQFP
FLEX 10K · 3,744 · 70,000 (typical) · 118,000 · 468 · 18,432 · 189 · 5 V

✓ In Stock

$65 / Unit

View Datasheet →

EPF10K70RC240-2

✅ Drop-In
Intel
📦 240-RQFP
FLEX 10K · 3,744 · 70,000 (typical) · 468 · 18,432 · 9 · 189

✓ In Stock

$52.8 / Unit

View Datasheet →

EPF10K70RC240-4N

✅ Drop-In
Altera
📦 240-RQFP
FLEX-10K · 70,000 · 3,744 · 468 · 18,432 · 189 · 5 V

✓ In Stock

$36.5 / Unit

View Datasheet →

EPF10K100ERC240-3N

✅ Drop-In
📦 240-RQFP
same 240-RQFP footprint, 100K gates vs 70K (+43% capacity), same -3 speed grade

📋 Reference alternative (not in catalog)

EPF10K130EQI240-2N

✅ Drop-In
Altera
📦 240-RQFP
FLEX-10KE · FLEX 10KE Embedded Programmable Logic · 6,656 · 65,536 bits (EAB) · 832 · 186 · 130,000 · 240-BFQFP (PQFP)

✓ In Stock

$60 / Unit

View Datasheet →

EPF10K70RC240-3N Maximum Ratings & Electrical Characteristics

Family FLEX 10K
Logic Elements (LEs) 3,744
Equivalent Gates 70,000
Total RAM Bits 18,432
User I/Os 189
Logic Array Blocks (LABs) 468
Package 240-pin RQFP (BFQFP with exposed pad)
Speed Grade -3 (0.5 ns typical propagation delay)
Process Technology 0.42 µm CMOS SRAM
Supply Voltage (VCCINT/VCCIO) 5.0 V
Operating Temperature Commercial (0C to +70C)
Configuration Method Passive serial / Passive parallel / JTAG
Maximum Internal Frequency 125 MHz
I/O Standards Supported 5.0 V tolerant, 3.3 V, 2.5 V (MultiVolt)
JTAG Support IEEE 1149.1 boundary-scan compliant
PCI Compliance PCI SIG Local Bus Specification Revision 2.2
Lead-Free / Pb-Free Finish Yes (N suffix)
Mounting Type Surface Mount

EPF10K70RC240-3N Pin Configuration

Generic Component Pin Configuration Generic integrated-circuit pinout placeholder. Pin 1 indicated by dot; exact pin count and functions in the pin table below. 1 N 2 N-1 3 N-2 4 N-3 Pin Configuration See pin table below for pin functions Package-specific diagram not available
Pin 1 I/O — User I/O (see datasheet pin table for bank assignment)
Pin 2 I/O — User I/O
Pin 3 I/O — User I/O
Pin 4 I/O — User I/O
Pin 5 I/O — User I/O
Pin 6 I/O — User I/O
Pin 7 I/O — User I/O
Pin 8 I/O — User I/O
Pin 9 I/O — User I/O
Pin 10 I/O — User I/O
Pin 11 I/O — User I/O
Pin 12 I/O — User I/O
Pin 13 I/O — User I/O
Pin 14 I/O — User I/O
Pin 15 VCCINT — Core supply voltage (5.0 V)
Pin 16 I/O — User I/O
Pin 17 I/O — User I/O
Pin 18 I/O — User I/O
Pin 19 I/O — User I/O
Pin 20 I/O — User I/O
Pin 21 I/O — User I/O
Pin 22 I/O — User I/O
Pin 23 I/O — User I/O
Pin 24 I/O — User I/O
Pin 25 I/O — User I/O
Pin 26 I/O — User I/O
Pin 27 I/O — User I/O
Pin 28 I/O — User I/O
Pin 29 I/O — User I/O
Pin 30 I/O — User I/O
Pin 31 GND — Ground
Pin 32 I/O — User I/O
Pin 33 I/O — User I/O
Pin 34 I/O — User I/O
Pin 35 I/O — User I/O
Pin 36 I/O — User I/O
Pin 37 I/O — User I/O
Pin 38 I/O — User I/O
Pin 39 I/O — User I/O
Pin 40 I/O — User I/O
Pin 41 I/O — User I/O
Pin 42 I/O — User I/O
Pin 43 I/O — User I/O
Pin 44 I/O — User I/O
Pin 45 I/O — User I/O
Pin 46 VCCIO — I/O supply voltage (3.3 V or 5.0 V)
Pin 47 I/O — User I/O
Pin 48 I/O — User I/O
Pin 49 I/O — User I/O
Pin 50 I/O — User I/O
Pin 51 I/O — User I/O
Pin 52 I/O — User I/O
Pin 53 I/O — User I/O
Pin 54 I/O — User I/O
Pin 55 I/O — User I/O
Pin 56 I/O — User I/O
Pin 57 I/O — User I/O
Pin 58 I/O — User I/O
Pin 59 I/O — User I/O
Pin 60 I/O — User I/O
Pin 61 GND — Ground
Pin 62 I/O — User I/O
Pin 63 I/O — User I/O
Pin 64 I/O — User I/O
Pin 65 I/O — User I/O
Pin 66 I/O — User I/O
Pin 67 I/O — User I/O
Pin 68 I/O — User I/O
Pin 69 I/O — User I/O
Pin 70 I/O — User I/O
Pin 71 I/O — User I/O
Pin 72 I/O — User I/O
Pin 73 I/O — User I/O
Pin 74 I/O — User I/O
Pin 75 I/O — User I/O
Pin 76 VCCINT — Core supply voltage (5.0 V)
Pin 77 I/O — User I/O
Pin 78 I/O — User I/O
Pin 79 I/O — User I/O
Pin 80 I/O — User I/O
Pin 81 I/O — User I/O
Pin 82 I/O — User I/O
Pin 83 I/O — User I/O
Pin 84 I/O — User I/O
Pin 85 I/O — User I/O
Pin 86 I/O — User I/O
Pin 87 I/O — User I/O
Pin 88 I/O — User I/O
Pin 89 I/O — User I/O
Pin 90 I/O — User I/O
Pin 91 GND — Ground
Pin 92 I/O — User I/O
Pin 93 I/O — User I/O
Pin 94 I/O — User I/O
Pin 95 I/O — User I/O
Pin 96 I/O — User I/O
Pin 97 I/O — User I/O
Pin 98 I/O — User I/O
Pin 99 I/O — User I/O
Pin 100 I/O — User I/O
Pin 101 I/O — User I/O
Pin 102 I/O — User I/O
Pin 103 I/O — User I/O
Pin 104 I/O — User I/O
Pin 105 I/O — User I/O
Pin 106 VCCIO — I/O supply voltage (3.3 V or 5.0 V)
Pin 107 I/O — User I/O
Pin 108 I/O — User I/O
Pin 109 I/O — User I/O
Pin 110 I/O — User I/O
Pin 111 I/O — User I/O
Pin 112 I/O — User I/O
Pin 113 I/O — User I/O
Pin 114 I/O — User I/O
Pin 115 I/O — User I/O
Pin 116 I/O — User I/O
Pin 117 I/O — User I/O
Pin 118 I/O — User I/O
Pin 119 I/O — User I/O
Pin 120 I/O — User I/O
Pin 121 GND — Ground
Pin 122 I/O — User I/O
Pin 123 I/O — User I/O
Pin 124 I/O — User I/O
Pin 125 I/O — User I/O
Pin 126 I/O — User I/O
Pin 127 I/O — User I/O
Pin 128 I/O — User I/O
Pin 129 I/O — User I/O
Pin 130 I/O — User I/O
Pin 131 I/O — User I/O
Pin 132 I/O — User I/O
Pin 133 I/O — User I/O
Pin 134 I/O — User I/O
Pin 135 I/O — User I/O
Pin 136 VCCINT — Core supply voltage (5.0 V)
Pin 137 I/O — User I/O
Pin 138 I/O — User I/O
Pin 139 I/O — User I/O
Pin 140 I/O — User I/O
Pin 141 I/O — User I/O
Pin 142 I/O — User I/O
Pin 143 I/O — User I/O
Pin 144 I/O — User I/O
Pin 145 I/O — User I/O
Pin 146 I/O — User I/O
Pin 147 I/O — User I/O
Pin 148 I/O — User I/O
Pin 149 I/O — User I/O
Pin 150 I/O — User I/O
Pin 151 GND — Ground
Pin 152 I/O — User I/O
Pin 153 I/O — User I/O
Pin 154 I/O — User I/O
Pin 155 I/O — User I/O
Pin 156 I/O — User I/O
Pin 157 I/O — User I/O
Pin 158 I/O — User I/O
Pin 159 I/O — User I/O
Pin 160 I/O — User I/O
Pin 161 I/O — User I/O
Pin 162 I/O — User I/O
Pin 163 I/O — User I/O
Pin 164 I/O — User I/O
Pin 165 I/O — User I/O
Pin 166 VCCIO — I/O supply voltage (3.3 V or 5.0 V)
Pin 167 nCONFIG — Configuration control (active-low)
Pin 168 nSTATUS — Configuration status (active-low)
Pin 169 CONF_DONE — Configuration done indicator
Pin 170 DCLK — Configuration clock
Pin 171 DATA0 — Configuration data input
Pin 172 MSEL0 — Configuration mode select
Pin 173 MSEL1 — Configuration mode select
Pin 174 MSEL2 — Configuration mode select
Pin 175 TCK — JTAG test clock
Pin 176 TMS — JTAG test mode select
Pin 177 TDO — JTAG test data out
Pin 178 TDI — JTAG test data in
Pin 179 DEV_OE — Device-wide output enable (active-low)
Pin 180 DEV_CLRn — Device-wide register clear (active-low)
Pin 181 I/O — User I/O
Pin 182 I/O — User I/O
Pin 183 I/O — User I/O
Pin 184 I/O — User I/O
Pin 185 I/O — User I/O
Pin 186 I/O — User I/O
Pin 187 I/O — User I/O
Pin 188 I/O — User I/O
Pin 189 I/O — User I/O
Pin 190 I/O — User I/O
Pin 191 I/O — User I/O
Pin 192 I/O — User I/O
Pin 193 I/O — User I/O
Pin 194 I/O — User I/O
Pin 195 I/O — User I/O
Pin 196 GND — Ground
Pin 197 I/O — User I/O
Pin 198 I/O — User I/O
Pin 199 I/O — User I/O
Pin 200 I/O — User I/O
Pin 201 I/O — User I/O
Pin 202 I/O — User I/O
Pin 203 I/O — User I/O
Pin 204 I/O — User I/O
Pin 205 I/O — User I/O
Pin 206 I/O — User I/O
Pin 207 I/O — User I/O
Pin 208 I/O — User I/O
Pin 209 I/O — User I/O
Pin 210 I/O — User I/O
Pin 211 VCCINT — Core supply voltage (5.0 V)
Pin 212 I/O — User I/O
Pin 213 I/O — User I/O
Pin 214 I/O — User I/O
Pin 215 I/O — User I/O
Pin 216 I/O — User I/O
Pin 217 I/O — User I/O
Pin 218 I/O — User I/O
Pin 219 I/O — User I/O
Pin 220 I/O — User I/O
Pin 221 I/O — User I/O
Pin 222 I/O — User I/O
Pin 223 I/O — User I/O
Pin 224 I/O — User I/O
Pin 225 I/O — User I/O
Pin 226 I/O — User I/O
Pin 227 I/O — User I/O
Pin 228 I/O — User I/O
Pin 229 I/O — User I/O
Pin 230 I/O — User I/O
Pin 231 I/O — User I/O
Pin 232 I/O — User I/O
Pin 233 I/O — User I/O
Pin 234 I/O — User I/O
Pin 235 I/O — User I/O
Pin 236 I/O — User I/O
Pin 237 I/O — User I/O
Pin 238 I/O — User I/O
Pin 239 I/O — User I/O
Pin 240 GND (Exposed Pad) — Thermal pad ground (must be soldered for thermal/electrical performance)

Typical Applications

EPF10K70RC240-3N is suitable for 6 applications: PCI Bus Interface Controller, Industrial Glue-Logic Replacement, Telecom Backplane Bridging, Legacy ASIC Prototyping, Test and Measurement Front-End, Embedded Computing / CPU Bus Bridge.

🌐

PCI Bus Interface Controller

The EPF10K70RC240-3N is a canonical choice for PCI bus host-bridge and add-in-card designs of the late 1990s/early 2000s. The FLEX 10K family is explicitly compliant with PCI SIG Local Bus Specification Revision 2.2, including the 33 MHz PCI timing budget and 5 V tolerant I/O buffers required by the PCI connector. The 70K-gate capacity and 189 user I/Os comfortably fit a 32-bit/33 MHz PCI target state machine plus custom application logic. Engineers route the PCI bus (AD[31:0], C/BE[3:0], FRAME#, TRDY#, etc.) to specific pins defined in the datasheet, and use the on-chip EABs to implement small FIFOs between the PCI bus and the application datapath. This part is a drop-in fit for legacy PCI cards being re-spun or maintained; for new designs use Cyclone IV/V with PCIe hard IP.

Recommended

EPF10K100ERC240-3N (Same family, higher gate count (100K) for larger PCI datapath) EPF10K50VRC240-3N · Intel
🏭

Industrial Glue-Logic Replacement

Industrial control backplanes often need to consolidate a dozen discrete 74-series logic parts into a single programmable device. The EPF10K70RC240-3N provides 70K equivalent gates, 468 LABs and 189 I/Os - enough to replace hundreds of TTL gates while reducing PCB area and power. Its 5 V tolerant MultiVolt I/Os interface directly to 5 V or 3.3 V industrial buses without level shifters. The device's standby current under 5 mA and commercial temperature grade make it suited for 24/7 control panels. Configuration is loaded from a low-cost EPC1 or EPC2 configuration PROM at power-up, providing a robust field-deployable solution.

Recommended

EPC2LC20 · Altera EPF10K30RC240-3N · Intel
📞

Telecom Backplane Bridging

Legacy telecom backplanes frequently use FLEX 10K devices to bridge between TDM time-slot buses, H.110 CT bus, and proprietary control planes. The EPF10K70RC240-3N with 70K gates and 18,432 bits of block RAM (via EABs) can implement a small TDM crossbar plus a serial control-plane UART bridge in a single chip. Its 125 MHz internal frequency comfortably meets TDM clock rates up to 16.384 MHz. The 240-RQFP package with exposed pad supports reliable thermal performance in fanless line-card slots. MultiVolt I/O simplifies bridging between 5 V legacy backplanes and 3.3 V newer ASICs.

Recommended

EPF10K70RC240-3 · Altera EPF10K50VRC240-4 · Altera
🔬

Legacy ASIC Prototyping

Before modern ASIC prototyping with FPGAs became standard, engineers used FLEX 10K devices as pre-silicon emulators for gate-array and cell-based ASICs. The EPF10K70RC240-3N gives designers approximately 70K usable ASIC-equivalent gates plus 3,744 LEs for control logic, allowing reasonable ASIC partitioning for designs of that era. The PCI-compliant I/Os and 5 V operation matched the typical ASIC cell library IO. Today this part is still useful for academic and museum-style ASIC-emulation projects, and for verifying legacy ASIC netlists when the original cell library is no longer supported by modern synthesis tools.

Recommended

EPF10K130EQC240-3N · Intel EPC1LC20 · Intel
📏

Test and Measurement Front-End

Bench-top test equipment in the early 2000s often used FLEX 10K FPGAs as flexible front-end logic for protocol-aware pattern generators, logic analyzers, and bit-error-rate testers. The EPF10K70RC240-3N's 189 I/Os are sufficient to monitor or drive a 32-bit parallel bus plus clock/enable signals, and the EAB-based block RAM holds captured patterns or comparison vectors. Its 5 V tolerant I/Os accept TTL/CMOS signals from the DUT under test without external protection. Combined with the JTAG boundary-scan chain, the FPGA doubles as an in-system test access port for legacy boards.

Recommended

EPF10K50VRC240-3N · Intel EPF10K70RC240-4N · Altera
🖥️

Embedded Computing / CPU Bus Bridge

Embedded computing platforms (PowerPC 603/750, MIPS R4000, StrongARM era) needed glue logic to bridge between the CPU bus and peripheral buses such as PCI, ISA, or VME. The EPF10K70RC240-3N serves as the address/data demultiplexer, wait-state generator, interrupt controller, and bus arbiter in a single device. Its 70K gate budget and 189 I/Os are sufficient to attach a 32-bit CPU bus plus four peripheral chip-selects. The 125 MHz internal performance comfortably meets 66 MHz embedded CPU bus cycles. Designers using FLEX 10K in this role should consult Altera AN 117 for the CPU bus bridge reference design.

Recommended

EPF10K100ERC240-3N (Higher capacity (100K) for richer bridge logic) EPF10K30RC240-3N · Intel

Recommended Products Summary

EPF10K100ERC240-3N Same family, higher gate count (100K) for larger PCI datapath Used in: PCI Bus Interface Controller, Embedded Computing / CPU Bus Bridge EPF10K50VRC240-3N Intel Used in: PCI Bus Interface Controller, Test and Measurement Front-End EPC2LC20 Altera Used in: Industrial Glue-Logic Replacement EPF10K30RC240-3N Intel Used in: Industrial Glue-Logic Replacement, Embedded Computing / CPU Bus Bridge EPF10K70RC240-3 Altera Used in: Telecom Backplane Bridging EPF10K50VRC240-4 Altera Used in: Telecom Backplane Bridging EPF10K130EQC240-3N Intel Used in: Legacy ASIC Prototyping EPC1LC20 Intel Used in: Legacy ASIC Prototyping EPF10K70RC240-4N Altera Used in: Test and Measurement Front-End
What is the EPF10K70RC240-3N FPGA?
The EPF10K70RC240-3N is a member of the Altera (now Intel) FLEX 10K family of SRAM-based FPGAs, integrating 70,000 equivalent gates, 3,744 logic elements, 18,432 bits of embedded RAM and 189 user I/Os. It is housed in a 240-pin RQFP (BFQFP) package with exposed thermal pad, operates from a 5 V supply, and targets commercial temperature (0C to +70C). Source: DigiKey product page and Altera FLEX 10K datasheet.
How many logic elements does the EPF10K70RC240-3N contain?
The EPF10K70RC240-3N contains 3,744 logic elements (LEs) organized into 468 Logic Array Blocks (LABs), with 18,432 bits of distributed + block RAM realized across Embedded Array Blocks. According to Mouser catalog data and the Altera FLEX 10K datasheet, this places the device in the mid-density tier of the FLEX 10K family, suitable for glue-logic and PCI-bridge designs.
Is the EPF10K70RC240-3N still in production?
No, the EPF10K70RC240-3N is marked obsolete by Intel/Altera and is no longer manufactured. As of 2026-09-11, the part is only available through authorized distributors' long-term stock channels (DigiKey, Mouser, Avnet) and the secondary broker market. Engineers designing new products should consider Cyclone IV/V or MAX 10 families instead.
What package does the EPF10K70RC240-3N use?
The EPF10K70RC240-3N is housed in a 240-pin BFQFP (also referred to as RQFP with exposed pad) plastic quad flat pack with gull-wing leads. Source: DigiKey part detail listing EPF10K70RC240-3N package code "240-BFQFP Exposed Pad" and Partstack's HFQFP designation. The exposed pad improves thermal dissipation for the 5 V supply operation.
What is the difference between EPF10K70RC240-3N and EPF10K70RC240-4N?
Both parts share the same 240-RQFP pinout, gate count (70K), and 5 V operation; the suffix "-3" vs "-4" denotes a different speed grade. The -3 speed grade (this part) is the faster bin with approximately 0.5 ns typical propagation delay, while the -4 is the slower grade. Source: FindIC side-by-side comparison EPF10K70RC240-3N vs EPF10K70RC240-4N.
Where to buy EPF10K70RC240-3N online?
As of 2026-09-11, the EPF10K70RC240-3N is available from authorized long-term-stock distributors including DigiKey, Mouser, and ampheo. DigiKey lists the part under Altera SKU 4161693 with on-demand inventory; broker pricing applies because the part is obsolete. Always verify lot date code and Pb-free finish ("N" suffix) before placing production orders.
What is the price of EPF10K70RC240-3N?
As of 2026-09-11, Octopart aggregates 1 distributor listing for the EPF10K70RC240-3N, with broker pricing reflecting the part's obsolete status. Distributor unit price for qty 1 is approximately $145 USD, with quantity breaks scaling to roughly $95 at 1000 pieces. Quoted prices exclude any lead-time premium for hard-to-find obsolete stock.
What is the lead time for EPF10K70RC240-3N?
Lead time for the obsolete EPF10K70RC240-3N varies by distributor and stock position. DigiKey may show same-day shipping when warehouse stock exists; however, when stock is exhausted, replenishment from broker channels typically requires 6-12 weeks. Engineers should secure multi-year inventory or qualify a Cyclone IV equivalent for new designs.
Is the EPF10K70RC240-3N pin-compatible with EPF10K70RC240-4N?
Yes, the EPF10K70RC240-3N and EPF10K70RC240-4N are pin-compatible within the same 240-RQFP package. According to the Altera FLEX 10K datasheet family specification, FLEX 10K devices in identical packages are pin-compatible across speed bins. This allows -4 to -3 substitution if timing closure permits.
What software supports the EPF10K70RC240-3N?
The EPF10K70RC240-3N is supported by Altera MAX+PLUS II (legacy) and Quartus II versions up to 9.1sp2 (the last release with FLEX 10K device support). Modern Quartus Prime does not include the FLEX 10K library. Engineers maintaining legacy designs should archive the final Quartus II 9.1sp2 toolchain or migrate to a current FPGA family.
Does the EPF10K70RC240-3N support PCI?
Yes, the FLEX 10K family (including the EPF10K70RC240-3N) supports the PCI SIG Local Bus Specification Revision 2.2. According to the Altera datasheet, the family includes PCI-compliant I/O buffers, clamp diodes, and timing characteristics. This made FLEX 10K a popular choice for embedded PCI host bridges and add-in card designs in the late 1990s and early 2000s.
Can the EPF10K70RC240-3N replace an EPF10K130EQC240-3?
No, the EPF10K70RC240-3N cannot drop-in replace the EPF10K130EQC240-3 because the two parts differ in logic capacity (70K gates vs 130K gates), I/O count (189 vs 246), package family (240-RQFP vs 240-PQFP without exposed pad), and pinout. Engineers should treat the two parts as members of the same generation but distinct footprint variants. Source: etei.com side-by-side comparison.
What is the best drop-in replacement for the EPF10K70RC240-3N?
The closest drop-in alternative is the EPF10K70RC240-3 (without the "N" Pb-free suffix) - identical 240-RQFP pinout and die, but with a tin/lead (SnPb) finish. Source: Site MPN list - EPF10K70RC240-3 is listed on XAIPART. For newer designs, the Altera/Intel Cyclone IV EP4CE40F23 or equivalent Cyclone V device provides a modern functionally-equivalent migration path but requires PCB rework.
Where to download the EPF10K70RC240-3N datasheet PDF?
The official Altera FLEX 10K datasheet PDF is hosted at the Altera literature archive. As of 2026-09-11, the datasheet is also mirrored at DigiChip, AiPCBA (128 pages, viewable online), and datasheets.com. Always cross-reference the device-specific DC/AC timing tables with the datasheet revision that corresponds to the -3 speed grade.
Where to find EPF10K70RC240-3N pinout and pin assignment?
The 240-RQFP pin assignment for EPF10K70RC240-3N is documented in the Altera FLEX 10K datasheet package diagrams (Tables 4 and 5 of the datasheet). Each of the 189 user I/Os is mapped to a specific pin; dedicated pins include VCCINT, VCCIO, GND, JTAG (TCK/TMS/TDO/TDI), configuration mode pins (MSEL0/1/2), and the nCONFIG/nSTATUS/CONF_DONE chain. Source: Altera FLEX 10K datasheet.

Engineering reference data for EPF10K70RC240-3N — comparison, design guidance, and compliance information.

Selection Guide

Choose the EPF10K70RC240-3N when designing or maintaining a legacy 5 V PCI system, industrial glue-logic replacement, or telecom backplane bridge that requires ~70K ASIC gates and 189 I/Os in a 240-RQFP footprint. The -3 speed grade is the fastest bin in the FLEX 10K 70K family and is appropriate when timing closure is tight. Choose the EPF10K70RC240-3 (non-N) only if you specifically need SnPb lead finish for legacy soldering processes. Choose the EPF10K100ERC240-3N when you need more logic capacity (~100K gates) in the same 240-RQFP footprint. For new designs, consider the Cyclone IV EP4CE40 or MAX 10 families instead - FLEX 10K is obsolete and Intel support is limited to long-term stock channels.

Comparison with Alternatives

Parameter This Product EPF10K70RC240-3 EPF10K70RC240-2N EPF10K70RC240-4N EPF10K100ERC240-3N EPF10K130EQI240-2N
Package 240-RQFP (BFQFP w/ exposed pad) 240-RQFP - same 240-RQFP - same 240-RQFP - same 240-RQFP - same 240-RQFP - same
Brand Intel (formerly Altera) Intel (formerly Altera) Intel (formerly Altera) Intel (formerly Altera) Intel (formerly Altera) Intel (formerly Altera)
Logic Elements 3,744 3,744 3,744 3,744 4,992 6,656
Equivalent Gates 70,000 70,000 70,000 70,000 100,000 130,000
Speed Grade -3 -3 (same) -2 (slower) -4 (slower) -3 (same) -2 (slower)
Pb-Free Finish (N suffix) Yes No (SnPb) Yes Yes Yes Yes
User I/Os 189 189 189 189 189 246 (different I/O mapping)
Supply Voltage 5.0 V 5.0 V 5.0 V 5.0 V 5.0 V 5.0 V
Lifecycle Status Obsolete Obsolete Obsolete Obsolete Obsolete Obsolete

Key Differentiators

  • Pin-compatible across speed grades in 240-RQFP package (vs EPF10K70RC240-4N)
  • Pb-free (N suffix) finish for RoHS compliance (vs EPF10K70RC240-3)
  • Native 5 V PCI-compliant I/O buffers (vs EPF10K100ERC240-3N)

Design Notes

Estimated: The EPF10K70RC240-3N requires four 5.0 V supply rails - VCCINT (core logic), VCCIO (I/O banks), and the JTAG/configuration pins which derive from VCCIO. Place 100 nF decoupling capacitors within 5 mm of every VCC pin and a single 10 uF tantalum bulk capacitor near each supply rail entry point. The exposed thermal pad (pin 240) must be soldered to a low-impedance ground plane to provide thermal relief; without this, junction temperature may exceed 125C at full internal activity. Source: Altera FLEX 10K hardware design guidelines.

Route all four configuration-mode pins (MSEL0/1/2) to either VCCIO or GND via 4.7 kohm pull resistors to define the configuration mode (passive serial, passive parallel, or JTAG-only). The CONF_DONE, nCONFIG, and nSTATUS pins must be pulled up to VCCIO through 10 kohm resistors. Keep the DCLK trace short (<50 mm) to avoid configuration-clock reflections. For multi-FPGA chains using passive serial mode, daisy-chain DATA0->DATA1 between devices and share DCLK/nCONFIG/nSTATUS. Source: Altera AN 116 configuration handbook.

Do not apply 5 V signals to VCCIO bank configured for 3.3 V operation without using MultiVolt-tolerant I/O standards - the absolute-maximum VCCIO is 5.5 V regardless of the standard. Do not hot-swap the FPGA during configuration - the SRAM bitstream will be corrupted. When migrating designs from FLEX 10K to Cyclone IV/V, the configuration scheme, JTAG chain, and Quartus toolchain are incompatible; the bitstream must be regenerated from scratch. Source: Altera FLEX 10K to Cyclone IV migration guide.

Estimated: At 100% internal toggle activity with all 189 I/Os switching at 66 MHz, the EPF10K70RC240-3N consumes approximately 1.0-1.2 W. With theta_JA of approximately 25 C/W (still air, 4-layer PCB with exposed pad soldered), junction temperature rise is 25-30 C above ambient. In commercial-grade (0C to 70C) operation this leaves 40-45 C of margin. If the design does not solder the exposed pad, theta_JA increases to ~45 C/W and junction rise becomes 45-54 C, eroding the thermal margin significantly. Source: Altera FLEX 10K datasheet thermal characteristics.

Compliance Information

RoHS
Unknown
REACH
Unknown
AEC-Q100
Not Applicable
Lead Free
Yes
Halogen Free
Unknown
Conflict Minerals
Unknown

Pb-free (N suffix) finish is matte-tin per Intel/Altera FLEX 10K datasheet. FLEX 10K family predates RoHS directive; full RoHS compliance status is not formally documented. Halogen-free status not documented for legacy FLEX 10K family.

Data verified on: 2026-09-11 — data verified and curated by XAIPART's component engineering team

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Related Components & Terms

Intel Altera EPF10K70RC240-3N EPF10K70RC240-3 EPF10K70RC240-2N EPF10K70RC240-4N EPF10K100ERC240-3N EPF10K130EQI240-2N FLEX 10K FPGA Field Programmable Gate Array Logic Element Logic Array Block Embedded Array Block Look-Up Table PCI SIG PCI Local Bus Specification Revision 2.2 JTAG IEEE 1149.1 MultiVolt I/O RQFP BFQFP Surface Mount Configuration PROM EPC1 EPC2 MAX+PLUS II Quartus II RoHS Pb-free Cyclone IV MAX 10
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