Intel

EPF10K50ETC144-3 - FLEX 10KE 50K Gates 144-TQFP FPGA | Intel

MPN: EPF10K50ETC144-3 ✗ End of Life
In Stock Ships in 1-3 business days
2.5 V Vdss 102 Package 166.67 MHz Speed 40,960 bits Memory
From $29.9 USD / Unit
MOQ: 1 |
Price updated: 2026-09-11
Volume Pricing
Qty Unit Price Extended
1 $45.5 $45.50
10 $41.2 $412.00
100 $37.8 $3,780.00
500 $33.5 $16,750.00
1,000 $29.9 $29,900.00
ℹ️ All prices are in USD

EPF10K50ETC144-3 Overview

The Intel (formerly Altera) EPF10K50ETC144-3 is a member of the FLEX 10KE family of embedded programmable logic devices (PLDs), providing System-on-a-Programmable-Chip (SOPC) integration with 50,000 typical gates, 2,880 logic cells, 40,960 bits of embedded memory, and 360 LABs/CLBs in a 144-pin TQFP (also referenced as TQFP-144) surface-mount package.

A Field-Programmable Gate Array (FPGA) is a reconfigurable integrated circuit whose logic fabric, interconnect, and I/O cells are defined by a user-supplied bitstream after manufacture. FPGAs sit within the broader hierarchy of programmable logic devices (PLDs) - alongside CPLDs, PALs, and GALs - and represent the highest-density, highest-performance tier used for glue logic, custom DSP, ASIC prototyping, and full system integration. The FLEX 10KE family pioneered embedded-array architecture, combining look-up-table based logic with embedded memory blocks and Embeddable Logic Array Blocks (EABs) to deliver a System-on-a-Programmable-Chip (SOPC) integration platform that pre-dated modern SoC FPGAs.

Key features include 102 user I/O pins (274 maximum in the family), 0.22 µm CMOS process technology, 166.67 MHz maximum internal frequency, 0.6 ns propagation delay, 2.5 V core supply, and SameFrame pin compatibility across the FLEX 10KE family for design migration. The device is offered in the commercial 0 °C to +70 °C operating range and supports in-system programmability via the IEEE 1149.1 JTAG boundary-scan interface and the Altera serial configuration scheme.

The EPF10K50ETC144-3 is built on a 0.22 µm four-metal-layer CMOS process, with 3.3 V tolerant I/O banks supporting LVTTL, LVCMOS, PCI, and other common interface standards of its generation. Its SRAM-based configuration memory allows unlimited reconfiguration but requires a configuration PROM or microcontroller to load the bitstream at power-up. The -3 speed grade corresponds to a faster device-bin than the -4 grade, enabling higher Fmax for clocked logic paths.

Typical applications include telecommunications line cards, industrial control and glue logic, legacy ASIC prototyping, custom DSP datapaths, and test-and-measurement front-ends. Designers value the FLEX 10KE family for deterministic pin-to-pin timing and abundant memory for small to medium-density designs where modern FPGA tools would be overkill. The 144-pin TQFP package also makes the part hand-solderable for prototyping.

When designing with this part, note that the SRAM configuration cells must be loaded from a serial or parallel PROM on every power-up; plan a configuration clock source and ensure all unused I/O pins are configured as inputs with weak pull-ups to avoid floating-input quiescent current. The SameFrame pin migration path is supported only with the 484-pin FineLine BGA package, so TQFP-144 designs are not directly migratable to higher I/O-count packages without board rework.

This page synthesizes distributor pricing from DigiKey and Mouser, drop-in alternatives within the FLEX 10KE family, and practical design notes not found in the manufacturer datasheet - all cross-referenced against XAIPART's internal FLEX 10K part database.

Drop-in alternatives for EPF10K50ETC144-3 — 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 EPF10K50ETC144-3 (same form factor and footprint) — differing in Package, Operating Temperature, Process Technology, Embedded Array Blocks (EABs), Series.

Intel
Package: 144-LQFP (TQFP, 20x20 mm)
Operating Temperature: 0C to +70C (Commercial)
Process Technology: CMOS, SRAM-based
Compare with EPF10K50ETC144-3 →
Altera
Package: 144-pin LQFP (TQFP)
Process Technology: 0.22 µm CMOS SRAM
Embedded Array Blocks (EABs): 13
Compare with EPF10K50ETC144-3 →
Intel
Operating Temperature: 0 °C to 70 °C (Commercial)
Compare with EPF10K50ETC144-3 →
Intel
Package: 144-LQFP (TQFP)
Process Technology: CMOS
Series: FLEX 10KE
Compare with EPF10K50ETC144-3 →
Intel
Package: 144-LQFP (TQFP), 22 x 22 mm, 0.5 mm pitch
Operating Temperature: -40C to +85C (Industrial)
Process Technology: 0.22 µm CMOS SRAM
Compare with EPF10K50ETC144-3 →
Intel
Package: 144-TQFP (TQFP-144, 20x20 mm)
Operating Temperature: 0 C to 70 C (Commercial)
Embedded Array Blocks (EABs): 20 (per datasheet family)
Compare with EPF10K50ETC144-3 →
Altera
Package: 144-LQFP (also called LFQFP / TQFP)
Operating Temperature: 0 C to 70 C (commercial)
Process Technology: 0.22 um CMOS, SRAM-based
Compare with EPF10K50ETC144-3 →

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

EPF10K50ETC144-3N

✅ Drop-In
📦 TQFP-144
RoHS / lead-free version of identical die, same TQFP-144 footprint, identical electrical specs

📋 Reference alternative (not in catalog)

EPF10K50ETC144-1

✅ Drop-In ⚠️ 参数待验证
Intel
📦 TQFP-144
FLEX 10KE · FLEX 10KE · 50,000 · 2,880 · 360 · 40,960 · 102 · 144

✓ In Stock

$18.9 / Unit

View Datasheet →

EPF10K30ETC144-3

✅ Drop-In
Altera
📦 TQFP-144
Altera (now Intel) · FLEX 10KE · FLEX 10KE · 1728 · 30,000 · 24,576 · 13 · 216

✓ In Stock

$35.2 / Unit

View Datasheet →

EPF10K30ETC144-3N

✅ Drop-In ⚠️ 参数待验证
Intel
📦 TQFP-144
FLEX 10KE · CMOS · 30,000 · 1,728 · 216 · 24,576 · 102 · 144

✓ In Stock

$26.75 / Unit

View Datasheet →

EPF10K30ETC144-2

✅ Drop-In ⚠️ 参数待验证
Intel
📦 TQFP-144
FLEX 10KE · FLEX 10KE · 1,728 · 30,000 · 102 · 216 · 24,576 · 6

✓ In Stock

$37.8 / Unit

View Datasheet →

EPF10K50ETC144-3 Maximum Ratings & Electrical Characteristics

Family FLEX 10KE
Typical Gate Count 50,000 gates
Logic Elements / Cells 2,880
Total Memory Bits 40,960 bits
Logic Array Blocks (LABs) 360
User I/O Pins (this package) 102
Max User I/O (family) 274 pins
Number of Pins 144
Package Type TQFP-144 (also referred to as 144-LQFP)
Propagation Delay 0.6 ns
Maximum Internal Frequency 166.67 MHz
Internal Frequency (per DigChip summary) 66.67 MHz
Process Technology 0.22 µm CMOS
Core Supply Voltage 2.5 V
Logic Family CMOS
Operating Temperature 0 °C to +70 °C (Commercial)
Mounting Type Surface Mount
Configuration Memory SRAM (volatile)
JTAG Support IEEE 1149.1 boundary scan

EPF10K50ETC144-3 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 pin (bank-dependent voltage tolerance)
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 — Core supply voltage (2.5 V)
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 I/O — User I/O pin
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 I/O — User I/O pin
Pin 21 GND — Ground
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 I/O — User I/O pin
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 voltage (3.3 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 I/O — User I/O pin
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 GND — Ground
Pin 52 I/O — User I/O pin
Pin 53 I/O — User I/O pin
Pin 54 I/O — User I/O pin
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 I/O — User I/O pin
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 I/O — User I/O pin
Pin 71 I/O — User I/O pin
Pin 72 GND — Ground
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 I/O — User I/O pin
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 I/O — User I/O pin
Pin 92 I/O — User I/O pin
Pin 93 GND — Ground
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 I/O — User I/O pin
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 TDI — JTAG Test Data In
Pin 109 TMS — JTAG Test Mode Select
Pin 110 TCK — JTAG Test Clock
Pin 111 TDO — JTAG Test Data Out
Pin 112 nSTATUS — Configuration status (open-drain)
Pin 113 nCONFIG — Configuration control (active-low)
Pin 114 CONF_DONE — Configuration done indicator
Pin 115 DCLK — Configuration clock
Pin 116 DATA0 — Configuration data input
Pin 117 MSEL0 — Configuration mode select 0
Pin 118 MSEL1 — Configuration mode select 1
Pin 119 nCE — Chip enable (active-low)
Pin 120 nCEO — Chip enable out (for daisy chain, active-low)
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 I/O — User I/O pin
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 VCCINT — Core supply voltage (2.5 V)
Pin 135 I/O — User I/O pin
Pin 136 I/O — User I/O pin
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

Typical Applications

EPF10K50ETC144-3 is suitable for 6 applications: Telecommunications Line Cards, Industrial Glue Logic and Bus Controllers, Legacy ASIC Prototyping, Custom DSP Datapaths, Test and Measurement Equipment, Educational and FPGA Training Platforms.

🌐

Telecommunications Line Cards

The EPF10K50ETC144-3's 50K-gate logic capacity, 360 LABs, and embedded memory blocks make it well suited to mid-1990s through mid-2000s telecom line-card designs implementing TDM framing, HDLC controllers, and ATM segmentation-and-reassembly (SAR) engines. Its 166.67 MHz Fmax and 0.6 ns propagation delay are sufficient for E1/T1 and 155 Mbps STM-1/OC-3 datapaths. The 102 I/O pins in the TQFP-144 package interface directly to parallel bus framer ICs and TDM backplanes. Designers benefit from the device's deterministic, register-rich architecture which simplifies timing closure for synchronous serial protocols. The same die also supports SameFrame pin migration to the 484-FineLine BGA package when higher I/O is required.

🏭

Industrial Glue Logic and Bus Controllers

The EPF10K50ETC144-3 was widely deployed as a flexible 'glue logic' replacement for multiple 74-series TTL parts on industrial control boards, implementing custom address decoding, wait-state generation, and bus arbitration between microprocessors, memory, and peripherals. Its 102 user I/O in the TQFP-144 package comfortably accommodate 8- and 16-bit ISA-style bus bridging plus dedicated control signals. The SRAM-based configuration lets factories re-spin logic without respinning PCBs - particularly valuable in long-lifecycle industrial products. The 0 °C to +70 °C commercial temperature grade suits factory-floor enclosures; engineers needing wider ranges should look at EPF10K50ETI144 (industrial -40 °C to +85 °C) or EPF10K50EQI240-2N family members.

🖥️

Legacy ASIC Prototyping

The 50K-gate density and 0.6 ns propagation delay of the EPF10K50ETC144-3 are ideal for prototyping ASIC designs of similar complexity before committing to mask costs. Engineers can drop RTL into the FLEX 10KE fabric, validate real-world timing at near-ASIC speeds (166.67 MHz Fmax), and iterate on the bitstream in minutes via JTAG. The 144-TQFP package is hand-solderable on prototype boards, eliminating the need for BGA rework equipment during bring-up. The embedded memory (40,960 bits) absorbs small FIFOs and register files common in custom ASICs. Quartus II (legacy software) supports this family, though modern Quartus Prime has dropped FLEX 10KE support.

📻

Custom DSP Datapaths

The EPF10K50ETC144-3's 360 LABs and 40,960 embedded memory bits enable moderate-density digital signal processing - FIR/IIR filters, FFT butterfly engines, and baseband demodulators. While lacking dedicated DSP blocks (which appeared in later Stratix families), the fabric supports efficient time-multiplexed MAC implementations at 100+ MHz sample rates for audio and low-MHz IF processing. The 144-TQFP package suits hand-built SDR prototypes and audio DSP evaluation boards. Designers can use Quartus II's MegaWizard to instantiate parameterized FIR/IIR IP cores that map to the FLEX 10KE's EAB blocks. For modern DSP workloads, Cyclone V with dedicated DSP blocks is preferred.

🔧

Test and Measurement Equipment

The EPF10K50ETC144-3's high I/O count (102 pins), fast propagation delay, and reconfigurable fabric make it well suited to test-and-measurement instruments - logic analyzer probes, pattern generators, protocol exercisers, and custom fixture controllers. Engineers can program stimulus patterns, bus monitors, or timing-critical measurement sequences directly into the fabric and reconfigure between tests via JTAG. The 2.5 V core with 3.3 V-tolerant I/O interfaces cleanly to TTL/CMOS test buses of its era. SameFrame pin migration to 484-BGA allows easy scaling of channel count. The commercial temperature grade is sufficient for laboratory environments; industrial temperature variants are required for field-deployed testers.

🎓

Educational and FPGA Training Platforms

The EPF10K50ETC144-3 remains useful in university FPGA curriculum and self-study where the simplicity of the FLEX 10KE architecture (no hard cores, no transceivers) helps students learn fundamentals of RTL synthesis, timing closure, and bitstream configuration without tool-chain complexity. The TQFP-144 package is hand-solderable on breadboard-friendly PCBs and works with Altera's classic ByteBlaster or BitBlaster download cables. Quartus II Web Edition (legacy free tool) supports this device. The 50K-gate density exercises real-world floorplanning and resource budgeting. Many vintage Altera development kits and academic FPGA boards shipped with this exact part.

What is the EPF10K50ETC144-3?
The EPF10K50ETC144-3 is a 50,000-gate member of Intel/Altera's FLEX 10KE family of SRAM-based FPGAs, supplied in a 144-pin TQFP package. According to the Altera FLEX 10KE datasheet, it provides 2,880 logic cells, 40,960 bits of embedded memory, 360 LABs, and 102 user I/O pins - the first family to combine embedded memory and logic in a System-on-a-Programmable-Chip (SOPC) architecture.
How many user I/O pins does the EPF10K50ETC144-3 have?
The EPF10K50ETC144-3 exposes 102 user I/O pins in its 144-pin TQFP package. According to the FLEX 10KE datasheet, the family maximum is 274 I/O pins, but the 144-TQFP package variant specifically exposes 102; designers needing more I/O must select the 208-pin, 240-pin, 256-pin, or 484-pin packages in the same family.
What is the maximum operating frequency of EPF10K50ETC144-3?
The EPF10K50ETC144-3 is rated for a maximum internal frequency of 166.67 MHz with a 0.6 ns propagation delay (per the Altera datasheet specifications reported by FPGAkey). A separate distributor summary on DigChip lists 66.67 MHz; the 166.67 MHz figure is the family Fmax for the -3 speed grade. Verify against the timing-model section of the datasheet for the specific logic path of your design.
Where can I download the EPF10K50ETC144-3 datasheet PDF?
The EPF10K50ETC144-3 datasheet is hosted on datasheets.com at https://www.datasheets.com/intel/epf10k50etc144-3 and mirrored on pdf.support (Altera-hosted PDF). Because the FLEX 10KE family is end-of-life, the datasheet may need to be retrieved from Altera/Intel legacy documentation archives or third-party FPGA archives such as FPGAkey and Octopart.
Is the EPF10K50ETC144-3 still in production?
No. The FLEX 10KE family, including the EPF10K50ETC144-3, was discontinued by Altera (now Intel FPGA) and is in obsolete lifecycle status as of 2026-09-11. Remaining stock is available only through distributors and the secondary market; new designs should migrate to Cyclone IV/V or MAX 10 family equivalents using Altera/Intel migration guides.
What is the difference between EPF10K50ETC144-3 and EPF10K50ETC144-3N?
The EPF10K50ETC144-3N suffix indicates a lead-free (Pb-free) / RoHS-compliant version of the same FLEX 10KE 50K-gate FPGA in the 144-TQFP package. According to Altera's legacy ordering scheme, the -3N part is the RoHS-compliant drop-in replacement for the original -3 part, with identical electrical and timing specifications - only the lead-finish composition differs.
What is the best drop-in replacement for EPF10K50ETC144-3?
The closest drop-in replacement for the EPF10K50ETC144-3 within Intel's FLEX 10KE family is the EPF10K50ETC144-3N, the lead-free version of the same die in the same 144-TQFP package. For new designs, Intel recommends migrating to the MAX 10 family (e.g., 10M08DAF256) which provides higher density, non-volatile configuration, and modern I/O standards, though this is a board redesign rather than a true drop-in.
EPF10K50ETC144-3 vs EPF10K50VRI240-4N - which should I choose?
The EPF10K50ETC144-3 (144-TQFP, 102 I/O, -3 speed grade) and EPF10K50VRI240-4N (240-RQFP, more I/O, -4 speed grade) are both FLEX 10KE 50K-gate FPGAs. Choose EPF10K50ETC144-3 for designs needing maximum internal frequency in a hand-solderable TQFP; choose EPF10K50VRI240-4N for designs requiring more user I/O. They are NOT pin-to-pin drop-in compatible due to the different package pin counts (144 vs 240).
What is the price of EPF10K50ETC144-3 as of 2026?
As of 2026-09-11, the EPF10K50ETC144-3 is priced at approximately USD 45.50 in single-unit quantities on the secondary market, dropping to USD 29.90 at the 1000-piece break (per available distributor listings on Mouser and FPGAkey). Because the part is obsolete, pricing varies significantly by lot date code, lead-finish, and RoHS status; quote-based sourcing is recommended for production volumes.
Is the EPF10K50ETC144-3 in stock at major distributors?
Stock of EPF10K50ETC144-3 is highly variable because the part is obsolete. As of 2026-09-11, DigiKey lists the part with lead time on quote, and secondary distributors such as Dyethin, Microchip-Price, and ICs-100 carry limited inventory. For volume production, plan for 8-16 week lead times or migrate to an active family.
What package does the EPF10K50ETC144-3 use?
The EPF10K50ETC144-3 uses a 144-pin Thin Quad Flat Pack (TQFP) with 0.5 mm lead pitch, also referred to as 144-LQFP in the DigiKey listing. The 'T' suffix in 'ETC144' indicates TQFP packaging per the Altera legacy ordering scheme; 'C' denotes commercial temperature grade; '144' is the pin count.
What is the difference between the -3 and -4 speed grades in FLEX 10KE?
In Altera's FLEX 10KE ordering scheme, the -3 speed grade is faster (higher Fmax, lower propagation delay) than the -4 grade. The EPF10K50ETC144-3 is the faster -3 bin; the EPF10K50ETC144-4 would be the slower -4 bin. Both are pin-compatible in the 144-TQFP package, allowing engineers to choose the speed grade that meets timing without PCB changes.
Can the EPF10K50ETC144-3 be used for ASIC prototyping?
Yes, the EPF10K50ETC144-3 was widely used for ASIC prototyping in the late 1990s and early 2000s. With 2,880 logic cells and 40,960 bits of embedded memory, it can absorb medium-complexity ASICs - glue logic, peripheral controllers, and modest DSP datapaths. Modern prototyping should use Cyclone IV/V or MAX 10 for higher density and modern tool support (Quartus Prime).
What configuration memory does the EPF10K50ETC144-3 require?
The EPF10K50ETC144-3 uses volatile SRAM configuration memory, which must be re-loaded from an external EPC serial configuration PROM or a microcontroller on every power-up via the Altera FLEX configuration scheme. Without a valid bitstream, all I/O pins remain tri-stated and logic functions are undefined. Modern MAX 10 or Cyclone V FPGAs use non-volatile flash configuration, eliminating this requirement.
What are the key specifications of EPF10K50ETC144-3 that engineers should know?
The EPF10K50ETC144-3 delivers 50,000 typical gates, 2,880 logic cells, 40,960 embedded memory bits, 360 LABs, 102 user I/O in 144-TQFP, 166.67 MHz max internal frequency, 0.6 ns propagation delay, 2.5 V core, 0.22 µm CMOS process, and 0 °C to +70 °C commercial temperature. It supports JTAG IEEE 1149.1 boundary scan, SameFrame pin migration with 484-FineLine BGA variants, and uses SRAM-based configuration requiring an external EPC PROM at power-up.

Engineering reference data for EPF10K50ETC144-3 — comparison, design guidance, and compliance information.

Selection Guide

Choose the EPF10K50ETC144-3 when you need a mid-density 50K-gate SRAM-based FPGA in a hand-solderable TQFP-144 package with the fastest -3 speed grade of the FLEX 10KE family, and you are maintaining a legacy design that already provisions an external EPC configuration PROM. Choose the EPF10K50ETC144-3N instead for any new build requiring RoHS/Pb-free compliance - identical die, same TQFP-144 footprint, drop-in compatible. Choose the EPF10K30ETC144-3 if your design only needs 30K gates and you want to reduce cost at the same speed grade. For new designs with no legacy constraint, migrate to Intel MAX 10 (10M08SAE144) which provides non-volatile flash configuration, an integrated ADC, and modern Quartus Prime tool support, though this requires a board redesign. All five recommended alternatives share the TQFP-144 footprint, enabling PCB reuse across speed grade and density options.

Comparison with Alternatives

Parameter This Product EPF10K50ETC144-3N EPF10K50ETC144-1 EPF10K30ETC144-3 EPF10K30ETC144-3N EPF10K30ETC144-2
Brand Intel Intel Intel Intel Intel Intel
Package TQFP-144 TQFP-144 - same TQFP-144 - same TQFP-144 - same TQFP-144 - same TQFP-144 - same
Logic Family FLEX 10KE FLEX 10KE FLEX 10KE FLEX 10KE FLEX 10KE FLEX 10KE
Typical Gate Count 50,000 50,000 50,000 30,000 (-40%) 30,000 (-40%) 30,000 (-40%)
Logic Cells 2,880 2,880 2,880 1,728 (-40%) 1,728 (-40%) 1,728 (-40%)
Speed Grade -3 -3 -1 (slower) -3 -3 -2 (slower)
User I/O Pins 102 102 102 102 102 102
Core Voltage 2.5 V 2.5 V 2.5 V 2.5 V 2.5 V 2.5 V
RoHS / Lead-Free Original (non-RoHS) Yes (RoHS) Original (non-RoHS) Original (non-RoHS) Yes (RoHS) Original (non-RoHS)

Key Differentiators

  • Highest-density FLEX 10KE variant in TQFP-144 (vs EPF10K30ETC144-3)
  • Faster -3 speed grade vs slower bins (vs EPF10K50ETC144-1)
  • Lead-free / RoHS-compliant variant exists for new builds (vs EPF10K50ETC144-3N)

Design Notes

The EPF10K50ETC144-3 requires two supplies: VCCINT at 2.5 V (±5%) for the core logic and VCCIO at 3.3 V (±5%) for the I/O banks. Place 100 nF decoupling capacitors as close as possible to every VCCINT and VCCIO pin pair, with bulk 10 µF tantalum capacitors at the supply-entry points. Power-on sequencing: VCCINT should reach 90% of nominal before VCCIO reaches 1.0 V to prevent I/O latch-up; consult the FLEX 10KE datasheet for recommended sequence.

Because the FLEX 10KE family uses SRAM configuration memory, the EPF10K50ETC144-3 must be re-loaded from an external EPC configuration PROM (e.g., EPC2, EPC8) or a microcontroller on every power-up. Without a valid bitstream, all I/O pins tri-state and logic is undefined - downstream devices can be damaged by simultaneous outputs. Always instantiate a configuration controller in the design and route nSTATUS, nCONFIG, CONF_DONE, DCLK, and DATA0 to the configuration source. Allow a minimum of 100 µs for the FPGA to begin accepting configuration after power-on reset.

The 144-pin TQFP uses 0.5 mm lead pitch and benefits from a 4-layer PCB with a continuous ground plane beneath the device. Route all 102 user I/O signals on inner or outer layers with 50 Ω controlled impedance if any signals exceed 50 MHz. Keep JTAG signals (TDI, TMS, TCK, TDO) short and isolated from switching outputs to avoid programming failures. Use a 10 kΩ pull-up on nCONFIG and a 10 kΩ pull-up on nSTATUS (open-drain) per the FLEX 10KE reference schematic.

I/O banks on the FLEX 10KE support LVTTL, LVCMOS, and PCI signaling at 3.3 V. Each bank can be independently supplied via VCCIO pins; mixing voltage standards across banks is permitted but requires separate VCCIO rails. Configure unused I/O pins as inputs with weak pull-ups enabled to minimize quiescent current and reduce EMI. The -3 speed grade supports 16-bit-wide LVTTL interfaces at 100+ MHz; verify timing closure in Quartus II TimeQuest before committing to layout.

When migrating from TQFP-144 to higher-density packages in the same FLEX 10KE family, the SameFrame pin-out guarantees compatibility only for the 484-pin FineLine BGA package. Migration from 144-TQFP to 240-QFP or 256-BGA requires PCB rework. For new designs, consider Intel's MAX 10 family (10M08/10M16) which provides non-volatile flash configuration, eliminating the external EPC PROM and reducing BOM cost.

Compliance Information

RoHS
Non Compliant
REACH
Compliant
AEC-Q100
Not Applicable
Lead Free
No
Halogen Free
Unknown
Conflict Minerals
Compliant

Original EPF10K50ETC144-3 is SnPb (non-RoHS). RoHS-compliant variant is EPF10K50ETC144-3N (same die, Pb-free finish). AEC-Q100 not applicable for FPGAs in this family. Halogen-free status not stated in available web data.

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 EPF10K50ETC144-3 EPF10K50ETC144-3N EPF10K30ETC144-3 FLEX 10KE FPGA Field-Programmable Gate Array PLD programmable logic device SOPC System-on-a-Programmable-Chip TQFP-144 LQFP-144 JTAG IEEE 1149.1 EPC configuration PROM SameFrame pin migration LVTTL LVCMOS RoHS 0.22 micron CMOS Quartus II LAB Logic Array Block embedded memory
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