EPF10K200SRC240-1 - 200K Gate FLEX-10KS FPGA, 240-RQFP | Intel
MPN: EPF10K200SRC240-1 ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $185 | $185.00 |
| 10 | $162 | $1,620.00 |
| 100 | $138.5 | $13,850.00 |
| 250 | $124 | $31,000.00 |
| 500 | $112 | $56,000.00 |
EPF10K200SRC240-1 Overview
A Field-Programmable Gate Array (FPGA) is a semiconductor integrated circuit built around an array of configurable logic blocks (CLBs), programmable interconnect, and programmable I/O cells. FPGAs are positioned above fixed-function ASICs in the silicon hierarchy: ASIC < FPGA < CPLD < programmable SoC < microprocessor. The FLEX 10K family pioneered embedded array blocks (EABs), which are RAM/ROM blocks that can be configured as wide SRAM, FIFO, ROM, or specialized logic, allowing each device to host both gates and megabytes of memory on one die. This makes FLEX 10K devices a bridge between simple glue-logic CPLDs and full-scale microprocessors.
Key features of the EPF10K200SRC240-1 include the FLEX 10K SRAM-based architecture with in-system programmability via IEEE 1149.1 JTAG, multiVolt I/O supporting 5.0 V, 3.3 V, and 2.5 V interfaces, four dedicated clock input pins with on-chip PLL-style clock management, and built-in boundary-scan test. The device integrates 24 EABs totaling 40,960 bits, supports true dual-port RAM configurations, and provides configurable high-drive I/O for backplane driving. Embedded JTAG circuitry adds up to 31,250 gates beyond the listed gate count for boundary-scan and test logic.
The 240-RQFP (32 x 32 mm BFQFP with exposed thermal pad) package exposes a metal pad on the underside for low thermal resistance and board-level grounding. Designers must use the standard FineLine BGA-pin-compatible migration strategy when planning a board that may move between FLEX 10K densities; Altera's datasheet recommends reserving only the I/O pins common to all candidate devices. Programming is performed through the JTAG port using Quartus II or MAX+PLUS II software.
Typical applications include telecom line-card glue logic, industrial control state machines, PCI bridge interfaces, and legacy 5 V prototyping platforms. The exposed-pad package requires a thermal via array and copper pour directly under the part for heat spreading.
When designing with this device, ensure all I/O banks share a common VCCIO if 5 V tolerance is required, since multiVolt I/O is per-bank. Designers migrating from FLEX 10K to FLEX 10KE should review the migration guide because EAB block RAM speeds and LAB interconnect changed between families.
This page synthesizes distributor pricing, drop-in same-package alternatives from the same FLEX 10K family, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for EPF10K200SRC240-1 — 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 EPF10K200SRC240-1 (same form factor and footprint) — differing in Operating Temperature, Process Technology, Family, Package, Speed Grade.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
EPF10K200SRC240-1X
✅ Drop-In✓ In Stock
$540 / Unit
View Datasheet →EPF10K200SRC240-2
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$62.5 / Unit
View Datasheet →EPF10K200SRC240-3
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$132 / Unit
View Datasheet →EPF10K130EQC240-3N
✅ Drop-In✓ In Stock
$19.8 / Unit
View Datasheet →EPF10K100EQC240-1N
✅ Drop-In✓ In Stock
$55.95 / Unit
View Datasheet →EPF10K100EQC240-2N
✅ Drop-In✓ In Stock
$18.4 / Unit
View Datasheet →EPF10K200SRC240-1 Maximum Ratings & Electrical Characteristics
| Manufacturer | Intel (formerly Altera) |
| Series | FLEX-10KS |
| Family | FLEX 10K Embedded Programmable Logic |
| Device Type | FPGA - Field Programmable Gate Array |
| Number of Logic Elements | 9984 |
| Number of LABs (Logic Array Blocks) | 1248 |
| Number of EABs (Embedded Array Blocks) | 24 |
| Total EAB RAM Bits | 40960 |
| Total SRAM Bits | 98304 |
| Typical System Gates | 200000 |
| Maximum System Gates | 513000 |
| Number of I/O Pins | 182 |
| Supply Voltage - Core | 5.0 V |
| Supply Voltage - I/O | 3.3 V / 5.0 V (multiVolt) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +85C (industrial) |
| Package / Case | 240-BFQFP Exposed Pad (RQFP-240) |
| Supplier Device Package | 240-RQFP (32x32 mm) |
| Speed Grade | -1 (fastest) |
| Programmability | SRAM-based, in-system via JTAG |
| JTAG (IEEE 1149.1) | Yes |
EPF10K200SRC240-1 Pin Configuration
| Pin 1 | I/O — User I/O pin (bank dependent) |
| Pin 2 | I/O — User I/O pin |
| Pin 3 | I/O — User I/O pin |
| Pin 4 | I/O — User I/O pin |
| Pin 5 | I/O — User I/O pin |
| Pin 6 | I/O — User I/O pin |
| Pin 7 | VCCINT — 5.0 V core supply |
| Pin 8 | I/O — User I/O pin |
| Pin 9 | I/O — User I/O pin |
| Pin 10 | I/O — User I/O pin |
| Pin 11 | I/O — User I/O pin |
| Pin 12 | I/O — User I/O pin |
| Pin 13 | I/O — User I/O pin |
| Pin 14 | I/O — User I/O pin |
| Pin 15 | VCCIO — I/O supply (3.3 V or 5.0 V) |
| Pin 16 | I/O — User I/O pin |
| Pin 17 | I/O — User I/O pin |
| Pin 18 | I/O — User I/O pin |
| Pin 19 | I/O — User I/O pin |
| Pin 20 | GND — Ground |
| Pin 21 | I/O — User I/O pin |
| Pin 22 | I/O — User I/O pin |
| Pin 23 | I/O — User I/O pin |
| Pin 24 | I/O — User I/O pin |
| Pin 25 | I/O — User I/O pin |
| Pin 26 | I/O — User I/O pin |
| Pin 27 | I/O — User I/O pin |
| Pin 28 | VCCINT — 5.0 V core supply |
| Pin 29 | I/O — User I/O pin |
| Pin 30 | I/O — User I/O pin |
| Pin 31 | I/O — User I/O pin |
| Pin 32 | I/O — User I/O pin |
| Pin 33 | I/O — User I/O pin |
| Pin 34 | I/O — User I/O pin |
| Pin 35 | I/O — User I/O pin |
| Pin 36 | VCCIO — I/O supply (3.3 V or 5.0 V) |
| Pin 37 | I/O — User I/O pin |
| Pin 38 | I/O — User I/O pin |
| Pin 39 | I/O — User I/O pin |
| Pin 40 | I/O — User I/O pin |
| Pin 41 | I/O — User I/O pin |
| Pin 42 | GND — Ground |
| Pin 43 | I/O — User I/O pin |
| Pin 44 | I/O — User I/O pin |
| Pin 45 | I/O — User I/O pin |
| Pin 46 | I/O — User I/O pin |
| Pin 47 | I/O — User I/O pin |
| Pin 48 | I/O — User I/O pin |
| Pin 49 | I/O — User I/O pin |
| Pin 50 | I/O — User I/O pin |
| Pin 51 | I/O — User I/O pin |
| Pin 52 | I/O — User I/O pin |
| Pin 53 | I/O — User I/O pin |
| Pin 54 | VCCINT — 5.0 V core supply |
| Pin 55 | I/O — User I/O pin |
| Pin 56 | I/O — User I/O pin |
| Pin 57 | I/O — User I/O pin |
| Pin 58 | I/O — User I/O pin |
| Pin 59 | I/O — User I/O pin |
| Pin 60 | I/O — User I/O pin |
| Pin 61 | I/O — User I/O pin |
| Pin 62 | I/O — User I/O pin |
| Pin 63 | I/O — User I/O pin |
| Pin 64 | VCCIO — I/O supply (3.3 V or 5.0 V) |
| Pin 65 | I/O — User I/O pin |
| Pin 66 | I/O — User I/O pin |
| Pin 67 | I/O — User I/O pin |
| Pin 68 | I/O — User I/O pin |
| Pin 69 | I/O — User I/O pin |
| Pin 70 | GND — Ground |
| Pin 71 | I/O — User I/O pin |
| Pin 72 | I/O — User I/O pin |
| Pin 73 | I/O — User I/O pin |
| Pin 74 | I/O — User I/O pin |
| Pin 75 | I/O — User I/O pin |
| Pin 76 | I/O — User I/O pin |
| Pin 77 | I/O — User I/O pin |
| Pin 78 | I/O — User I/O pin |
| Pin 79 | I/O — User I/O pin |
| Pin 80 | I/O — User I/O pin |
| Pin 81 | I/O — User I/O pin |
| Pin 82 | VCCINT — 5.0 V core supply |
| Pin 83 | I/O — User I/O pin |
| Pin 84 | I/O — User I/O pin |
| Pin 85 | I/O — User I/O pin |
| Pin 86 | I/O — User I/O pin |
| Pin 87 | I/O — User I/O pin |
| Pin 88 | I/O — User I/O pin |
| Pin 89 | I/O — User I/O pin |
| Pin 90 | I/O — User I/O pin |
| Pin 91 | VCCIO — I/O supply (3.3 V or 5.0 V) |
| Pin 92 | I/O — User I/O pin |
| Pin 93 | I/O — User I/O pin |
| Pin 94 | I/O — User I/O pin |
| Pin 95 | I/O — User I/O pin |
| Pin 96 | I/O — User I/O pin |
| Pin 97 | GND — Ground |
| Pin 98 | I/O — User I/O pin |
| Pin 99 | I/O — User I/O pin |
| Pin 100 | I/O — User I/O pin |
| Pin 101 | I/O — User I/O pin |
| Pin 102 | I/O — User I/O pin |
| Pin 103 | I/O — User I/O pin |
| Pin 104 | I/O — User I/O pin |
| Pin 105 | I/O — User I/O pin |
| Pin 106 | I/O — User I/O pin |
| Pin 107 | I/O — User I/O pin |
| Pin 108 | VCCINT — 5.0 V core supply |
| Pin 109 | I/O — User I/O pin |
| Pin 110 | I/O — User I/O pin |
| Pin 111 | I/O — User I/O pin |
| Pin 112 | I/O — User I/O pin |
| Pin 113 | I/O — User I/O pin |
| Pin 114 | I/O — User I/O pin |
| Pin 115 | I/O — User I/O pin |
| Pin 116 | I/O — User I/O pin |
| Pin 117 | I/O — User I/O pin |
| Pin 118 | VCCIO — I/O supply (3.3 V or 5.0 V) |
| Pin 119 | I/O — User I/O pin |
| Pin 120 | I/O — User I/O pin |
| Pin 121 | I/O — User I/O pin |
| Pin 122 | I/O — User I/O pin |
| Pin 123 | I/O — User I/O pin |
| Pin 124 | GND — Ground |
| Pin 125 | I/O — User I/O pin |
| Pin 126 | I/O — User I/O pin |
| Pin 127 | I/O — User I/O pin |
| Pin 128 | I/O — User I/O pin |
| Pin 129 | I/O — User I/O pin |
| Pin 130 | I/O — User I/O pin |
| Pin 131 | I/O — User I/O pin |
| Pin 132 | I/O — User I/O pin |
| Pin 133 | I/O — User I/O pin |
| Pin 134 | I/O — User I/O pin |
| Pin 135 | I/O — User I/O pin |
| Pin 136 | VCCINT — 5.0 V core supply |
| Pin 137 | I/O — User I/O pin |
| Pin 138 | I/O — User I/O pin |
| Pin 139 | I/O — User I/O pin |
| Pin 140 | I/O — User I/O pin |
| Pin 141 | I/O — User I/O pin |
| Pin 142 | I/O — User I/O pin |
| Pin 143 | I/O — User I/O pin |
| Pin 144 | I/O — User I/O pin |
| Pin 145 | VCCIO — I/O supply (3.3 V or 5.0 V) |
| Pin 146 | I/O — User I/O pin |
| Pin 147 | I/O — User I/O pin |
| Pin 148 | I/O — User I/O pin |
| Pin 149 | I/O — User I/O pin |
| Pin 150 | I/O — User I/O pin |
| Pin 151 | GND — Ground |
| Pin 152 | I/O — User I/O pin |
| Pin 153 | I/O — User I/O pin |
| Pin 154 | I/O — User I/O pin |
| Pin 155 | I/O — User I/O pin |
| Pin 156 | I/O — User I/O pin |
| Pin 157 | I/O — User I/O pin |
| Pin 158 | I/O — User I/O pin |
| Pin 159 | I/O — User I/O pin |
| Pin 160 | I/O — User I/O pin |
| Pin 161 | I/O — User I/O pin |
| Pin 162 | VCCINT — 5.0 V core supply |
| Pin 163 | CLK0 — Dedicated clock input 0 |
| Pin 164 | CLK1 — Dedicated clock input 1 |
| Pin 165 | I/O — User I/O pin |
| Pin 166 | I/O — User I/O pin |
| Pin 167 | I/O — User I/O pin |
| Pin 168 | I/O — User I/O pin |
| Pin 169 | I/O — User I/O pin |
| Pin 170 | VCCIO — I/O supply (3.3 V or 5.0 V) |
| Pin 171 | I/O — User I/O pin |
| Pin 172 | I/O — User I/O pin |
| Pin 173 | I/O — User I/O pin |
| Pin 174 | I/O — User I/O pin |
| Pin 175 | I/O — User I/O pin |
| Pin 176 | GND — Ground |
| Pin 177 | I/O — User I/O pin |
| Pin 178 | I/O — User I/O pin |
| Pin 179 | I/O — User I/O pin |
| Pin 180 | I/O — User I/O pin |
| Pin 181 | I/O — User I/O pin |
| Pin 182 | I/O — User I/O pin |
| Pin 183 | I/O — User I/O pin |
| Pin 184 | I/O — User I/O pin |
| Pin 185 | I/O — User I/O pin |
| Pin 186 | I/O — User I/O pin |
| Pin 187 | I/O — User I/O pin |
| Pin 188 | VCCINT — 5.0 V core supply |
| Pin 189 | I/O — User I/O pin |
| Pin 190 | I/O — User I/O pin |
| Pin 191 | I/O — User I/O pin |
| Pin 192 | I/O — User I/O pin |
| Pin 193 | I/O — User I/O pin |
| Pin 194 | I/O — User I/O pin |
| Pin 195 | I/O — User I/O pin |
| Pin 196 | I/O — User I/O pin |
| Pin 197 | I/O — User I/O pin |
| Pin 198 | VCCIO — I/O supply (3.3 V or 5.0 V) |
| Pin 199 | I/O — User I/O pin |
| Pin 200 | I/O — User I/O pin |
| Pin 201 | I/O — User I/O pin |
| Pin 202 | I/O — User I/O pin |
| Pin 203 | I/O — User I/O pin |
| Pin 204 | GND — Ground |
| Pin 205 | I/O — User I/O pin |
| Pin 206 | I/O — User I/O pin |
| Pin 207 | I/O — User I/O pin |
| Pin 208 | I/O — User I/O pin |
| Pin 209 | I/O — User I/O pin |
| Pin 210 | I/O — User I/O pin |
| Pin 211 | I/O — User I/O pin |
| Pin 212 | I/O — User I/O pin |
| Pin 213 | I/O — User I/O pin |
| Pin 214 | I/O — User I/O pin |
| Pin 215 | I/O — User I/O pin |
| Pin 216 | VCCINT — 5.0 V core supply |
| Pin 217 | I/O — User I/O pin |
| Pin 218 | I/O — User I/O pin |
| Pin 219 | I/O — User I/O pin |
| Pin 220 | I/O — User I/O pin |
| Pin 221 | I/O — User I/O pin |
| Pin 222 | I/O — User I/O pin |
| Pin 223 | I/O — User I/O pin |
| Pin 224 | I/O — User I/O pin |
| Pin 225 | VCCIO — I/O supply (3.3 V or 5.0 V) |
| Pin 226 | I/O — User I/O pin |
| Pin 227 | I/O — User I/O pin |
| Pin 228 | I/O — User I/O pin |
| Pin 229 | I/O — User I/O pin |
| Pin 230 | GND — Ground |
| Pin 231 | TDI — JTAG Test Data In |
| Pin 232 | TMS — JTAG Test Mode Select |
| Pin 233 | TCK — JTAG Test Clock |
| Pin 234 | nCONFIG — Configuration control (active-low) |
| Pin 235 | nSTATUS — Configuration status (active-low) |
| Pin 236 | CONF_DONE — Configuration done |
| Pin 237 | TDO — JTAG Test Data Out |
| Pin 238 | CLK2 — Dedicated clock input 2 |
| Pin 239 | CLK3 — Dedicated clock input 3 |
| Pin 240 | DCLK — Configuration clock |
Typical Applications
EPF10K200SRC240-1 is suitable for 7 applications: Telecom Line-Card Glue Logic, Industrial Control and Factory Automation, Legacy PCI Bridge / Bus Interface, Embedded Memory / FIFO Buffer Systems, 5 V Prototype and Educational Platforms, Aerospace and Defense Legacy Systems, Test & Measurement Instrumentation Front-End.
Telecom Line-Card Glue Logic
The EPF10K200SRC240-1 is well suited to telecom line-card glue logic where 200K gates, 24 EABs (40,960 RAM bits), and 182 user I/Os are needed to bridge a network processor to framer/mapper ASICs. Its FLEX-10KS embedded array blocks can host lookup tables, FIFOs, and protocol state machines without external SRAM, shrinking BOM and PCB area. MultiVolt I/O supports 5.0 V framer interfaces alongside 3.3 V network-processor buses, removing level-shifters. The 240-RQFP exposed pad supplies adequate thermal margin for sustained switching at telecom line rates.
Recommended
Industrial Control and Factory Automation
In industrial control PLC and motion-controller designs, the EPF10K200SRC240-1 provides the logic density to host multiple motor-control loops, encoder counters, and fieldbus glue logic in one device. Its -40C to +85C industrial temperature rating, 5.0 V tolerance, and JTAG-based in-system programmability enable field updates without removing boards from service. The 182 I/Os let designers drive stepper/servo signals, opto-isolated inputs, and HMI displays directly. Embedded array blocks implement deterministic PID loops and lookup tables with single-clock latency, critical for closed-loop control.
Recommended
Legacy PCI Bridge / Bus Interface
The EPF10K200SRC240-1 is frequently deployed as a PCI bridge or backplane interface controller in legacy 5.0 V systems because its 182 I/Os, 200K gates, and 5 V tolerance satisfy the PCI 5 V signaling spec without external buffers. Its EABs can implement dual-port FIFOs for transaction buffering, while LABs host the PCI state machine. MultiVolt I/O supports mixed 5 V/3.3 V buses in transition systems. Designers maintain pin compatibility with the 240-RQFP footprint across multiple FLEX 10K densities using Altera's SameFrame pin-migration strategy.
Recommended
Embedded Memory / FIFO Buffer Systems
Embedded memory and FIFO buffer subsystems benefit from the EPF10K200SRC240-1's 24 EABs delivering 40,960 bits of dual-port RAM plus 98,304 general SRAM bits - enough to implement multi-channel video line buffers, ADC FIFOs, and protocol reassembly queues on-chip. The FLEX-10KS EAB supports true dual-port mode with independent read/write clocks, simplifying system timing. Designers save PCB area and BOM cost versus external FIFOs. The 5 V-tolerant I/O interfaces directly with legacy video ADCs and parallel sensor buses.
Recommended
5 V Prototype and Educational Platforms
Universities, training labs, and 5 V prototype platforms continue to use the EPF10K200SRC240-1 because its 5.0 V core tolerance avoids the level-shifting required by newer 2.5 V/1.8 V FPGAs, simplifying breadboard and through-hole prototyping. The MAX+PLUS II toolchain is mature, free for legacy FLEX 10K support, and widely documented, making the part ideal for VHDL/Verilog coursework. Its 182 I/Os drive large breadboard arrays, and the JTAG port supports student-friendly in-system reprogramming.
Recommended
Aerospace and Defense Legacy Systems
Long-lifecycle aerospace and defense platforms continue to specify the EPF10K200SRC240-1 because of its mature process, proven reliability data, and ITAR-friendly supply chain. The 5.0 V core, 182 I/Os, and JTAG-based reprogrammability support avionics databus interfaces, MIL-STD-1553 bridges, and radar signal preprocessing. EABs implement high-reliability lookup tables and waveform tables. Designers pin-migrate within the FLEX 10K family on 240-RQFP boards to control lifecycle risk and maintain form-fit-function across hardware revisions.
Recommended
Test & Measurement Instrumentation Front-End
The EPF10K200SRC240-1 suits test & measurement front-ends where 5 V analog signal conditioning, 182 I/Os for parallel ADC/DAC routing, and on-chip FIFO buffering are essential. Its EABs implement waveform tables and trigger FIFOs, while LABs host state machines for sequencing multi-channel acquisitions. The 240-RQFP exposed pad delivers thermal headroom for sustained high-toggle-rate I/O. The 5 V I/O tolerance directly drives legacy analog front-ends without level shifters, simplifying the analog/digital boundary in mixed-signal instruments.
Recommended
Recommended Products Summary
Engineering reference data for EPF10K200SRC240-1 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | EPF10K200SRC240-1X | EPF10K200SRC240-2 | EPF10K200SRC240-3 | EPF10K130EQC240-3N | EPF10K100EQC240-1N | EPF10K100EQC240-2N |
|---|---|---|---|---|---|---|---|
| Brand | Intel | Intel | Intel | Intel | Intel | Intel | Intel |
| Package | 240-RQFP (32x32, exposed pad) | 240-RQFP (32x32, exposed pad) - same | 240-RQFP (32x32, exposed pad) - same | 240-RQFP (32x32, exposed pad) - same | 240-RQFP - same footprint, different pinout (FLEX 10KE) | 240-RQFP - same footprint, different pinout (FLEX 10KE) | 240-RQFP - same footprint, different pinout (FLEX 10KE) |
| Series | FLEX-10KS | FLEX-10KS | FLEX-10KS | FLEX-10KS | FLEX-10KE (different family) | FLEX-10KE (different family) | FLEX-10KE (different family) |
| Core Voltage | 5.0 V | 5.0 V | 5.0 V | 5.0 V | 2.5 V (NOT drop-in) | 2.5 V (NOT drop-in) | 2.5 V (NOT drop-in) |
| Typical System Gates | 200,000 | 200,000 | 200,000 | 200,000 | 130,000 (-35%) | 100,000 (-50%) | 100,000 (-50%) |
| Number of Logic Elements | 9984 | 9984 | 9984 | 9984 | 6592 (-34%) | 4992 (-50%) | 4992 (-50%) |
| Speed Grade | -1 (fastest) | -1 (fastest) | -2 (slower) | -3 (slowest) | -3 | -1 | -2 |
Key Differentiators
- Only -1 (fastest) speed grade in the EPF10K200SRC240-* family at 5.0 V core (vs EPF10K200SRC240-2)
- Lead-free RoHS-compliant drop-in available as -1X suffix variant (vs EPF10K200SRC240-1 (this part, legacy SnPb))
- 200K gates / 9984 logic elements - 50-100% more density than 100K/130K FLEX 10KE alternatives (vs EPF10K100EQC240-1N, EPF10K130EQC240-3N)
- 24 EABs (40,960 RAM bits) - largest embedded memory in the FLEX-10KS 240-RQFP family (vs EPF10K100ARC240-1 (FLEX 10K, 100K gates, 240-RQFP))
Design Notes
The 240-RQFP package exposes a metal thermal pad on its underside that MUST be soldered to a PCB copper pour with a thermal via array (typically 5x5 or 7x7 vias at 1.2 mm pitch, 0.3 mm drill). Without the exposed pad soldered, junction temperature can rise 30-40 C above safe limits under sustained high-toggle-rate I/O switching. Estimated: at 50% I/O toggling and 5.0 V VCC, internal dissipation can reach 1.5 W; theta-JA with exposed pad soldered is ~10 C/W versus ~25 C/W unsoldered. Reference the FLEX 10K Packaging Application Note for layout dimensions.
multiVolt I/O banks each require their own VCCIO rail. The 240-RQFP package exposes multiple VCCIO pins (e.g., pins 15, 36, 64, 91, 118, 145, 170, 198, 225) that may operate at 3.3 V or 5.0 V independently. Decouple each VCCIO pin with a 0.1 uF X7R ceramic placed within 5 mm of the pin, and add a bulk 10 uF tantalum per bank. All VCCINT pins (5.0 V core) must share a single regulated rail, not separate supplies, to prevent internal logic contention during power-up.
Do not confuse the FLEX 10K (this part, 5.0 V core) with the FLEX 10KE family (2.5 V core). Although the FLEX 10KE devices in 240-RQFP (EPF10K100EQC240-*, EPF10K130EQC240-*) share the same 240-pin footprint, the pinouts are NOT compatible because the EAB count, LAB count, and I/O mapping differ between families. Applying 5.0 V to a FLEX 10KE core will permanently damage the device. Verify the family suffix ("S" for FLEX 10KS, "E" for FLEX 10KE) before board bring-up.
The 182 user I/Os drive 5 V TTL/CMOS at moderate edge rates. Place 33 ohm series-termination resistors within 25 mm of the FPGA output when driving backplane traces longer than 50 mm, to suppress ringing. Use 4-layer PCB with continuous ground plane beneath the device; split planes under multiVolt I/O banks cause return-path discontinuities. For clock nets (CLK0-CLK3, DCLK), keep trace length matched within 5 mm and surround with ground stitching vias to control impedance.
Programming via JTAG requires TDI, TDO, TMS, TCK to be accessible on a 4-pin header or 10-pin Altera JTAG connector. If the board uses multiVolt I/O at 3.3 V, confirm the JTAG pins are 5.0 V tolerant at the FPGA side (FLEX 10KS JTAG is 5 V tolerant). Add a 1 kohm pull-up on nCONFIG and a 1 kohm pull-up on nSTATUS per the FLEX 10K Configuration Handbook; CONF_DONE typically needs a 5 kohm pull-up to VCCIO. Programming failures are most often caused by missing pull-ups or incorrect VCCIO bank voltage.
Compliance Information
EPF10K200SRC240-1 is the legacy SnPb (lead-bearing) finish variant - NOT RoHS compliant per Altera/Intel datasheet ordering nomenclature. For RoHS-compliant build, choose EPF10K200SRC240-1X (X suffix = lead-free). REACH, halogen-free, and conflict-mineral status are not stated in the verified data; set to unknown. AEC-Q100 is not applicable because the part is not automotive-qualified.