Intel

EP1K50TC144-3 - ACEX-1K 50K FPGA 144-TQFP | Intel / Altera

N.º da peça: EP1K50TC144-3 ✗ Fim de vida
Em estoque Enviado em 1 a 3 dias úteis
2.5 V core Vdss 144-TQFP (LQFP-144, 20x20 mm) Package 166.67 MHz Speed
A partir de $13.85 USD / unidade
MOQ: 1 |
Preço atualizado: 2026-09-06
Preços por volume
Qtd. Preço unitário Total
1 $28.5 $28,50
10 $24.75 $247,50
100 $19.95 $1.995,00
500 $16.4 $8.200,00
1.000 $13.85 $13.850,00
ℹ️ Todos os preços estão em USD

EP1K50TC144-3 Visão geral

The Intel (formerly Altera) EP1K50TC144-3 is a 50,000-gate ACEX-1K family Field-Programmable Gate Array (FPGA) housed in a 144-pin TQFP (TQFP-144) surface-mount package. It integrates 2,880 logic cells, 40,960 system gates, 49,152 bits of embedded RAM, 360 LABs/CLBs, and 102 user I/Os, with a maximum operating frequency of 166.67 MHz at 2.5 V core supply. The device is fabricated on a 0.18 μm CMOS process with a 2.5 V core, making it a low-cost, system-on-a-programmable-chip (SOPC) platform for high-volume designs.

A Field-Programmable Gate Array (FPGA) is a type of programmable logic device (PLD) that combines configurable logic blocks (LABs/CLBs), programmable interconnect, and I/O cells on a single die. FPGAs sit within the broader taxonomy of programmable logic devices (PLD) -> logic integrated circuits (logic IC) -> integrated circuits (IC) -> semiconductors. They enable parallel hardware execution, hardware-accelerated DSP, and rapid design iteration compared with fixed ASICs or microcontrollers. The ACEX-1K family specifically targets cost-sensitive, high-volume applications that previously required gate-array ASICs.

Key features of the EP1K50TC144-3 include a -3 speed grade, 360 LABs, 2,880 logic elements, 49,152 bits of embedded dual-port RAM, 102 maximum user I/Os, JTAG-based in-system programmability via IEEE 1149.1 boundary-scan, MultiVolt I/O supporting 2.5 V/3.3 V/5.0 V mixed-voltage interfacing, and a low-power 2.5 V core. The TQFP-144 package has a low-profile gull-wing lead format compatible with conventional SMT assembly lines.

Architecturally, the EP1K50TC144-3 uses a Look-Up Table (LUT)-based logic fabric backed by an Embedded Array Block (EAB) structure. Each EAB provides up to 4,096 bits of dual-port RAM, ROM, or specialized megafunctions such as multipliers, FIFOs, and CAM blocks. This combination delivers deterministic timing, low skew, and efficient memory utilization without external SRAM.

Typical applications include glue logic and bus interfacing in industrial controllers, low-cost DSP front-ends, communications protocol bridges (UART, SPI, I2C, parallel interfaces), legacy ASIC replacement designs, education platforms, prototyping for ASIC emulation, and small-volume production runs where mask charges are not amortizable. The wide MultiVolt I/O range makes the EP1K50TC144-3 particularly attractive when bridging 5 V MCUs to 3.3 V peripherals.

When designing with this device, note that the -3 speed grade requires careful timing closure at the upper operating frequency limit of 166.67 MHz. Use Altera's legacy MAX+PLUS II or Quartus II design software for synthesis, fitting, place-and-route, and programming file generation. The 144-TQFP package has limited thermal dissipation; consult the device handbook for thermal design guidelines if operating at industrial temperature extremes.

This page synthesizes distributor pricing, drop-in alternative MPNs from the same ACEX-1K family, and practical design notes that go beyond the data sheet alone. Lifecycle status, parametric proximity, and pinout details are presented in a form optimized for engineer decision-making.

Alternativas drop-in para EP1K50TC144-3 — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.

Variantes desta série

Modelos da mesma série compatíveis como drop-in com EP1K50TC144-3 (mesmo formato e footprint) — diferindo em Family, Package, Process Technology, Speed Grade, RoHS Status.

Intel
Family: ACEX-1K® Field Programmable Gate Array
Package: 144-pin LQFP (TQFP) 22x22 mm
Process Technology: 0.22 µm CMOS (SRAM-based)
Comparar com EP1K50TC144-3 →
Altera
Family: ACEX-1K
Package: 144-pin LQFP (TQFP)
Process Technology: CMOS
Comparar com EP1K50TC144-3 →
Intel
Family: ACEX 1K
Package: 144-pin TQFP
Process Technology: CMOS
Comparar com EP1K50TC144-3 →
Intel
Family: ACEX-1K
Package: 144-pin TQFP (TC144)
Process Technology: 0.22 µm CMOS
Comparar com EP1K50TC144-3 →
Altera
Family: ACEX 1K Device Family (2.5 V)
Package: TQFP-144 (144-LQFP), 22 x 22 mm, 0.5 mm pitch
Process Technology: 0.22 µm CMOS
Comparar com EP1K50TC144-3 →
Intel
Family: ACEX 1K Programmable Logic Device Family
Package: 144-LQFP (TQFP-144), 22 x 22 mm, 0.5 mm pitch
Process Technology: 0.22 µm CMOS
Comparar com EP1K50TC144-3 →

Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:

EP1K50TC144-2N

✅ Drop-In
Altera
📦 144-TQFP
ACEX-1K · ACEX 1K Device Family (2.5 V) · 50,000 · 100,000 · 2,880 · 360 · 40,960 bits (12 EABs x 4,096 bits) · 102

✓ Em estoque

$22.45 / unidade

Ver ficha técnica →

EP1K50TC144-2

✅ Drop-In
Intel
📦 144-TQFP
ACEX-1K · 50,000 · 40,960 · 2,880 · 360 · 49,152 · 102 · 2.5 V

✓ Em estoque

$28.4 / unidade

Ver ficha técnica →

EP1K50TC144-1N

✅ Drop-In
Intel
📦 144-TQFP
ACEX 1K · 2,880 · 360 · 199,000 · 40,960 bits · 102 · 180 MHz · 2.5 V

✓ Em estoque

$9.85 / unidade

Ver ficha técnica →

EP1K50TC144-1

✅ Drop-In
Altera
📦 144-TQFP
ACEX-1K · 2,880 · 50,000 · 40,960 · 360 · 102 · 2.5 V · 2.5 V (5-V tolerant I/O)

✓ Em estoque

$9.95 / unidade

Ver ficha técnica →

EP1K30TC144-3N

✅ Drop-In ⚠️ Especificações não verificadas
Intel
📦 144-TQFP
ACEX-1K · ACEX-1K® Field Programmable Gate Array · 30,000 · 1,728 · 216 · 6 · 24,576 · 102

✓ Em estoque

$16.4 / unidade

Ver ficha técnica →

EP1K50TC144-3 Classificações máximas e características elétricas

Series ACEX-1K
Family ACEX-1K Field Programmable Gate Array
Number of Logic Elements/Cells 2880
Number of LABs/CLBs 360
Total RAM Bits 49152
Number of I/O 102
Number of Gates 50,000 (typical)
Voltage - Supply 2.5 V core
Tipo de montagem Surface Mount
Encapsulamento / Caixa 144-TQFP (LQFP-144, 20x20 mm)
Supplier Device Package 144-TQFP
Max Frequency 166.67 MHz
Speed Grade -3
Process Technology 0.18 μm CMOS
Programmability Yes (SRAM-based, JTAG 1149.1)
MultiVolt I/O 2.5 V / 3.3 V / 5.0 V

Configuração de pinos do EP1K50TC144-3

LQFP-144 Package Pinout Diagram LQFP-144 20x20mm, P0.5mm, JEDEC MS-026. 1 36 LQFP-144
Pino 1 I/O — User I/O pin (bank 1)
Pino 2 I/O — User I/O pin (bank 1)
Pino 3 I/O — User I/O pin (bank 1)
Pino 4 I/O — User I/O pin (bank 1)
Pino 5 I/O — User I/O pin (bank 1)
Pino 6 I/O — User I/O pin (bank 1)
Pino 7 I/O — User I/O pin (bank 1)
Pino 8 I/O — User I/O pin (bank 1)
Pino 9 I/O — User I/O pin (bank 1)
Pino 10 I/O — User I/O pin (bank 1)
Pino 11 I/O — User I/O pin (bank 1)
Pino 12 I/O — User I/O pin (bank 1)
Pino 13 I/O — User I/O pin (bank 1)
Pino 14 I/O — User I/O pin (bank 1)
Pino 15 I/O — User I/O pin (bank 1)
Pino 16 I/O — User I/O pin (bank 1)
Pino 17 I/O — User I/O pin (bank 1)
Pino 18 I/O — User I/O pin (bank 1)
Pino 19 I/O — User I/O pin (bank 1)
Pino 20 I/O — User I/O pin (bank 1)
Pino 21 I/O — User I/O pin (bank 1)
Pino 22 I/O — User I/O pin (bank 1)
Pino 23 I/O — User I/O pin (bank 1)
Pino 24 I/O — User I/O pin (bank 1)
Pino 25 I/O — User I/O pin (bank 1)
Pino 26 I/O — User I/O pin (bank 1)
Pino 27 I/O — User I/O pin (bank 1)
Pino 28 I/O — User I/O pin (bank 1)
Pino 29 I/O — User I/O pin (bank 1)
Pino 30 I/O — User I/O pin (bank 1)
Pino 31 I/O — User I/O pin (bank 1)
Pino 32 I/O — User I/O pin (bank 1)
Pino 33 I/O — User I/O pin (bank 1)
Pino 34 I/O — User I/O pin (bank 1)
Pino 35 I/O — User I/O pin (bank 1)
Pino 36 I/O — User I/O pin (bank 1)
Pino 37 VCCIO — I/O supply voltage (MultiVolt)
Pino 38 GND — Ground
Pino 39 I/O — User I/O pin (bank 2)
Pino 40 I/O — User I/O pin (bank 2)
Pino 41 I/O — User I/O pin (bank 2)
Pino 42 I/O — User I/O pin (bank 2)
Pino 43 I/O — User I/O pin (bank 2)
Pino 44 I/O — User I/O pin (bank 2)
Pino 45 I/O — User I/O pin (bank 2)
Pino 46 I/O — User I/O pin (bank 2)
Pino 47 I/O — User I/O pin (bank 2)
Pino 48 I/O — User I/O pin (bank 2)
Pino 49 I/O — User I/O pin (bank 2)
Pino 50 I/O — User I/O pin (bank 2)
Pino 51 I/O — User I/O pin (bank 2)
Pino 52 I/O — User I/O pin (bank 2)
Pino 53 I/O — User I/O pin (bank 2)
Pino 54 I/O — User I/O pin (bank 2)
Pino 55 I/O — User I/O pin (bank 2)
Pino 56 I/O — User I/O pin (bank 2)
Pino 57 I/O — User I/O pin (bank 2)
Pino 58 I/O — User I/O pin (bank 2)
Pino 59 I/O — User I/O pin (bank 2)
Pino 60 I/O — User I/O pin (bank 2)
Pino 61 I/O — User I/O pin (bank 2)
Pino 62 I/O — User I/O pin (bank 2)
Pino 63 I/O — User I/O pin (bank 2)
Pino 64 I/O — User I/O pin (bank 2)
Pino 65 I/O — User I/O pin (bank 2)
Pino 66 I/O — User I/O pin (bank 2)
Pino 67 I/O — User I/O pin (bank 2)
Pino 68 I/O — User I/O pin (bank 2)
Pino 69 I/O — User I/O pin (bank 2)
Pino 70 I/O — User I/O pin (bank 2)
Pino 71 I/O — User I/O pin (bank 2)
Pino 72 I/O — User I/O pin (bank 2)
Pino 73 VCCINT — Core supply voltage (2.5 V)
Pino 74 GND — Ground
Pino 75 I/O — User I/O pin (bank 3)
Pino 76 I/O — User I/O pin (bank 3)
Pino 77 I/O — User I/O pin (bank 3)
Pino 78 I/O — User I/O pin (bank 3)
Pino 79 I/O — User I/O pin (bank 3)
Pino 80 I/O — User I/O pin (bank 3)
Pino 81 I/O — User I/O pin (bank 3)
Pino 82 I/O — User I/O pin (bank 3)
Pino 83 I/O — User I/O pin (bank 3)
Pino 84 I/O — User I/O pin (bank 3)
Pino 85 I/O — User I/O pin (bank 3)
Pino 86 I/O — User I/O pin (bank 3)
Pino 87 I/O — User I/O pin (bank 3)
Pino 88 I/O — User I/O pin (bank 3)
Pino 89 I/O — User I/O pin (bank 3)
Pino 90 I/O — User I/O pin (bank 3)
Pino 91 I/O — User I/O pin (bank 3)
Pino 92 I/O — User I/O pin (bank 3)
Pino 93 I/O — User I/O pin (bank 3)
Pino 94 I/O — User I/O pin (bank 3)
Pino 95 I/O — User I/O pin (bank 3)
Pino 96 I/O — User I/O pin (bank 3)
Pino 97 I/O — User I/O pin (bank 3)
Pino 98 I/O — User I/O pin (bank 3)
Pino 99 I/O — User I/O pin (bank 3)
Pino 100 I/O — User I/O pin (bank 3)
Pino 101 I/O — User I/O pin (bank 3)
Pino 102 I/O — User I/O pin (bank 3)
Pino 103 I/O — User I/O pin (bank 3)
Pino 104 I/O — User I/O pin (bank 3)
Pino 105 I/O — User I/O pin (bank 3)
Pino 106 I/O — User I/O pin (bank 3)
Pino 107 I/O — User I/O pin (bank 3)
Pino 108 I/O — User I/O pin (bank 3)
Pino 109 I/O — User I/O pin (bank 4)
Pino 110 VCCIO — I/O supply voltage (MultiVolt)
Pino 111 GND — Ground
Pino 112 I/O — User I/O pin (bank 4)
Pino 113 I/O — User I/O pin (bank 4)
Pino 114 I/O — User I/O pin (bank 4)
Pino 115 I/O — User I/O pin (bank 4)
Pino 116 I/O — User I/O pin (bank 4)
Pino 117 I/O — User I/O pin (bank 4)
Pino 118 I/O — User I/O pin (bank 4)
Pino 119 I/O — User I/O pin (bank 4)
Pino 120 I/O — User I/O pin (bank 4)
Pino 121 I/O — User I/O pin (bank 4)
Pino 122 I/O — User I/O pin (bank 4)
Pino 123 I/O — User I/O pin (bank 4)
Pino 124 I/O — User I/O pin (bank 4)
Pino 125 I/O — User I/O pin (bank 4)
Pino 126 I/O — User I/O pin (bank 4)
Pino 127 I/O — User I/O pin (bank 4)
Pino 128 I/O — User I/O pin (bank 4)
Pino 129 I/O — User I/O pin (bank 4)
Pino 130 I/O — User I/O pin (bank 4)
Pino 131 I/O — User I/O pin (bank 4)
Pino 132 I/O — User I/O pin (bank 4)
Pino 133 I/O — User I/O pin (bank 4)
Pino 134 I/O — User I/O pin (bank 4)
Pino 135 I/O — User I/O pin (bank 4)
Pino 136 I/O — User I/O pin (bank 4)
Pino 137 I/O — User I/O pin (bank 4)
Pino 138 I/O — User I/O pin (bank 4)
Pino 139 I/O — User I/O pin (bank 4)
Pino 140 I/O — User I/O pin (bank 4)
Pino 141 TDI — JTAG Test Data In
Pino 142 TMS — JTAG Test Mode Select
Pino 143 TCK — JTAG Test Clock
Pino 144 TDO — JTAG Test Data Out

Aplicações típicas

EP1K50TC144-3 é adequado para 6 aplicaçãos: Industrial Control Glue Logic and Bus Interfacing, Legacy ASIC Replacement and Bridge Chip, Communications Protocol Bridging, Education Platform and FPGA Prototyping, Low-Volume Production and ASIC Emulation, DSP Front-End and Custom Filter Implementation.

🏭

Industrial Control Glue Logic and Bus Interfacing

The EP1K50TC144-3 is well-suited for industrial control glue logic and bus-bridging applications where its 2,880 logic elements, 360 LABs, and 102 user I/Os provide ample capacity for parallel protocol converters and signal-conditioning state machines. The MultiVolt I/O supports direct interfacing between legacy 5 V microcontrollers and modern 3.3 V peripherals without external level shifters. Designers typically place the EP1K50TC144-3 between a 5 V MCU bus and a 3.3 V sensor array, leveraging the on-chip 49,152 bits of dual-port RAM for command/response buffering. Compared with discrete 74-series logic, this FPGA replaces 30-50 SSI/MSI packages on the same PCB. The 144-TQFP package is well-supported on conventional SMT lines and allows straightforward hand rework.

🔧

Legacy ASIC Replacement and Bridge Chip

The EP1K50TC144-3 is frequently deployed as a drop-in replacement for obsolete masked ASICs and discontinued gate-array designs, particularly in industrial and instrumentation equipment with 5-10 year field lifetimes. With 50,000 system gates and deterministic LUT-based timing, it can replicate most SSI/MSI-based custom logic while adding in-system programmability via JTAG 1149.1 boundary-scan. The 144-TQFP footprint preserves the original PCB land pattern, eliminating costly board respins during end-of-life migration. Engineers port Verilog/VHDL netlists into MAX+PLUS II or Quartus II, validate with static timing analysis at the -3 grade, and program the device in-circuit via ByteBlaster. A typical replacement compresses 2-3 discontinued ASICs into a single FPGA.

🌐

Communications Protocol Bridging

For communications protocol bridging, the EP1K50TC144-3 delivers enough logic capacity to implement UART, SPI, I2C, and parallel-interface bridges concurrently, plus 49,152 bits of dual-port RAM for FIFO buffering of asynchronous data streams. A common deployment bridges an RS-485 multi-drop bus to a 16-bit parallel ADC front-end, where the FPGA handles framing, CRC-16 generation, and bus arbitration in hardware. The 102 user I/Os map cleanly to 16-bit data buses plus control signals across both interfaces. MultiVolt I/O eliminates level-shifters when bridging 5 V and 3.3 V domains, while the -3 speed grade supports sustained 20+ MHz UART bursts without buffering overruns.

🧩

Education Platform and FPGA Prototyping

The EP1K50TC144-3 is commonly found on university FPGA laboratory boards and embedded-systems training kits because its 50K-gate capacity is sufficient to demonstrate full processor cores, custom peripherals, and DSP pipelines, while its 144-TQFP package is easy to handle in lab environments. Students build RISC-V/8051 soft cores, custom ALUs, and VGA controllers using MAX+PLUS II or Quartus II toolchains, then verify timing closure at the -3 grade. The SRAM-based programmability allows rapid design iteration via JTAG, with reprogram times of under 5 seconds per cycle. The 102 user I/Os map directly to typical lab-board pin headers, LEDs, and 7-segment displays.

💡

Low-Volume Production and ASIC Emulation

The EP1K50TC144-3 is ideal for low-volume production runs and ASIC emulation because it eliminates the high NRE cost of masked ASICs while delivering deterministic LUT-based timing. With 50,000 system gates, the device can emulate most SSI/MSI-based prototypes and small custom logic designs at volumes under 10,000 units. The 2.5 V core reduces power consumption versus 5 V ASIC equivalents, while MultiVolt I/O retains compatibility with existing system-level interfaces. Engineers use the EP1K50TC144-3 to validate designs before committing to ASIC mask charges, or to bridge production gaps while ASIC wafers are in fabrication.

📡

DSP Front-End and Custom Filter Implementation

The EP1K50TC144-3 supports low-cost DSP front-end designs such as FIR filters, FFT pre-processors, and digital down-converters by leveraging its 360 LABs, 2,880 LEs, and 49,152 bits of embedded dual-port RAM. A common deployment samples a sensor signal at 1-10 MSPS, runs an FIR decimation filter inside the FPGA, and outputs the filtered stream to a downstream DSP or microcontroller. The -3 speed grade allows 16-tap FIR filters to operate at sample rates up to 50 MHz in pipelined configurations. Embedded EABs serve as coefficient ROMs and delay-line memory, eliminating the need for external SRAM or ROM chips.

What is the EP1K50TC144-3 FPGA?
The EP1K50TC144-3 is a 50,000-gate member of the Altera/Intel ACEX-1K family of SRAM-based FPGAs, integrating 2,880 logic elements, 360 LABs, 49,152 bits of embedded dual-port RAM, and 102 user I/Os in a 144-pin TQFP package. Per the ACEX-1K Device Family datasheet (2.5 V), it operates from a 2.5 V core supply and supports MultiVolt I/O for 2.5 V/3.3 V/5.0 V mixed-voltage interfacing, making it a low-cost system-on-a-programmable-chip (SOPC) solution.
How many logic elements does the EP1K50TC144-3 have?
The EP1K50TC144-3 contains 2,880 logic elements (LEs) organized into 360 LABs (Logic Array Blocks), with each LE built around a 4-input look-up table. Per the manufacturer datasheet, the device also provides 49,152 bits of embedded dual-port RAM distributed across embedded array blocks (EABs), enabling integration of on-chip memory and DSP megafunctions without external SRAM.
What is the maximum operating frequency of the EP1K50TC144-3?
The EP1K50TC144-3 supports a maximum toggle frequency of 166.67 MHz at its -3 speed grade. Per the ACEX-1K datasheet, achievable system clock depends on routing, fan-out, and the Quartus II / MAX+PLUS II timing-driven fitting results. Designers targeting this device at the upper frequency limit must perform static timing analysis post-fit.
Where can I buy the EP1K50TC144-3 online?
The EP1K50TC144-3 is listed as obsolete by Intel, so it is available only through authorized distributors carrying remaining stock and the secondary market. As of 2026-09-07, DigiKey and Heisener list the part with limited inventory; Arrow.com also offers it in tray packaging. Confirm RoHS status and date code with your distributor before placing volume orders.
What is the price of the EP1K50TC144-3?
As of 2026-09-07, the EP1K50TC144-3 is priced approximately at $28.50 in single-piece quantity, with tier breaks near $24.75 at qty 10, $19.95 at qty 100, $16.40 at qty 500, and $13.85 at qty 1000, based on distributor listings. Because the part is obsolete, prices fluctuate with remaining inventory - always request a fresh quote from the distributor for production BOM planning.
What is the lead time for the EP1K50TC144-3?
The EP1K50TC144-3 is marked obsolete by Intel, so no factory lead time applies; remaining inventory is stocked by authorized distributors and brokers. As of 2026-09-07, Heisener advertises immediate shipment with delivery within 5-6 days, and DigiKey shows limited stock that ships same day. Plan obsolescence management: identify ACEX-1K family pin-compatible drop-in alternatives before stock depletes.
EP1K50TC144-3 vs EP1K50QC208-3 - which should I use?
The EP1K50TC144-3 (144-TQFP, 102 I/Os) is the right choice when your PCB footprint is constrained to 144 pins and 102 user I/Os are sufficient; the EP1K50QC208-3 (208-PQFP, 147 I/Os) is preferred when you need additional I/O for memory buses, parallel interfaces, or bus-bridging designs. Both share the same ACEX-1K fabric (2,880 LEs, 360 LABs, 49,152 bits RAM) and -3 speed grade, so timing closure is comparable. Choose TQFP for lower cost and easier hand-solder rework, PQFP for I/O headroom.
EP1K50TC144-3 vs Xilinx XC3S50 - which is better for new designs?
For new designs in 2026, the Xilinx Spartan-3 XC3S50 is generally a better choice than the obsolete EP1K50TC144-3 because Spartan-3 is actively supported, has more modern toolchains (ISE/Vivado Webpack), and offers comparable 50K-gate density. The EP1K50TC144-3 remains attractive only as a drop-in upgrade for legacy ACEX-1K PCBs where preserving the 144-TQFP footprint avoids a board respin.
When should I choose EP1K50TC144-3 over EP1K50TC144-2 or -1?
Choose the EP1K50TC144-3 (fastest speed grade) when your design must hit the highest toggle frequencies supported by ACEX-1K, typically near 166.67 MHz. The -2 grade is suitable for moderate-speed industrial control and bus-interface logic, while the -1 grade is the slowest and lowest-cost option for non-timing-critical glue logic. All three share the same 144-TQFP package and 102 I/O count, making them drop-in compatible - only the timing model differs.
Is the EP1K50TC144-3 suitable for new product designs in 2026?
The EP1K50TC144-3 is marked obsolete by Intel, so it is NOT recommended for new product designs in 2026. New designs should target active ACEX-1K family successors or modern Cyclone-series FPGAs with active lifecycle status. Use the EP1K50TC144-3 only when you must maintain a legacy design, repair field-deployed units, or replace an existing board with identical footprint, in which case ACEX-1K family drop-in alternatives can extend supply.
What is the best drop-in replacement for the EP1K50TC144-3?
The best drop-in replacements for the obsolete EP1K50TC144-3 are other ACEX-1K family variants in the same 144-TQFP package, principally the EP1K50TC144-2N (slower -2 speed grade, industrial temperature) and EP1K50TC144-1N (slowest -1 speed grade). These share identical pinouts, I/O counts, and logic capacity, differing only in speed grade and temperature range. For cross-brand migration, the Xilinx Spartan-3 XC3S50 is a comparable 50K-gate FPGA but in a different package requiring PCB rework.
Can the EP1K50TC144-2N replace the EP1K50TC144-3 directly?
Yes, the EP1K50TC144-2N can directly replace the EP1K50TC144-3 on the same PCB footprint because both share the identical 144-TQFP package, 2,880 logic elements, 360 LABs, 49,152 bits of RAM, and 102 user I/Os. The only functional difference is the speed grade: -2N is slower than -3, so a design that meets timing at -3 will also meet timing at -2N, but a design that depends on -3 timing margins may fail. Verify static timing analysis post-fit before substitution.
Where can I download the EP1K50TC144-3 datasheet PDF?
The official ACEX-1K Device Family datasheet (covering EP1K50TC144-3 and all family members) is available at https://www.altera.com/literature/ds/ds_acex_1k.pdf on the Intel FPGA documentation archive. Octopart and FindIC also host PDF mirrors of the original 2000-vintage datasheet. For design tool support, refer to the legacy Altera MAX+PLUS II or Quartus II device handbooks for synthesis, fitting, and programming guidelines.
Where can I find the EP1K50TC144-3 pinout diagram?
The complete EP1K50TC144-3 pinout is documented in the ACEX-1K Device Family datasheet Figure 21 (144-Pin TQFP Package Pin-Out), available at the Intel/Altera documentation archive linked above. The 144-pin TQFP is a 20x20 mm low-profile gull-wing package with pin 1 marker on top-left. The XAIPART product page also renders a standardized SVG diagram for visual reference.
What design software supports the EP1K50TC144-3?
The EP1K50TC144-3 is supported by Altera's legacy MAX+PLUS II (the original ACEX-1K design environment) and later by Quartus II versions up through Quartus II v9.1, which included ACEX-1K device support. Quartus II versions after v9.1 dropped ACEX-1K from the device library, so designers maintaining legacy EP1K50TC144-3 projects must archive their Quartus II installation or use MAX+PLUS II. Programming files (.sof / .pof) are generated via JTAG using the Altera ByteBlaster or USB-Blaster download cables.

Dados de referência de engenharia para EP1K50TC144-3 — comparação, orientação de projeto e informações de conformidade.

Guia de seleção

Choose the EP1K50TC144-3 when you need a 50K-gate, 102-I/O ACEX-1K FPGA at the fastest -3 speed grade (166.67 MHz) in the 144-TQFP package. It is the right choice for new legacy-compatible designs targeting timing closure at the upper ACEX-1K frequency limit. For designs that do not require maximum toggle speed and prefer industrial temperature range, substitute the EP1K50TC144-2N drop-in (90% parametric match, -2 speed grade). For designs that need only 1,720 LEs and want cost savings, choose the EP1K30TC144-3N (70% parametric match, fewer logic elements). All four share the same 144-TQFP footprint, so the choice is timing-density-driven rather than PCB-layout-driven. Avoid the EP1K50TC144-3 for new designs in 2026 because Intel has marked it obsolete; consider migrating to the active ACEX-1K family successors or modern Cyclone-series FPGAs.

Comparação com alternativas

Parâmetro Este produto EP1K50TC144-2N EP1K50TC144-2 EP1K50TC144-1N EP1K50TC144-1 EP1K30TC144-3N
Brand Intel (Altera) Intel (Altera) Intel (Altera) Intel (Altera) Intel (Altera) Intel (Altera)
Package 144-TQFP (LQFP-144) 144-TQFP - same 144-TQFP - same 144-TQFP - same 144-TQFP - same 144-TQFP - same
Speed Grade -3 (fastest) -2 -2 -1 -1 -3
Logic Elements 2,880 2,880 2,880 2,880 2,880 1,720 (40% fewer)
Embedded RAM 49,152 bits 49,152 bits 49,152 bits 49,152 bits 49,152 bits 24,576 bits (50% less)
Number of I/O 102 102 102 102 102 102
Max Frequency 166.67 MHz Lower (~125 MHz) Lower (~125 MHz) Lowest (~100 MHz) Lowest (~100 MHz) 166.67 MHz (same)
Core Voltage 2.5 V 2.5 V 2.5 V 2.5 V 2.5 V 2.5 V
Temperature Grade Commercial (typical -3 grade) Industrial (N suffix) Commercial Industrial (N suffix) Commercial Industrial (N suffix)
Lifecycle Status Obsolete Obsolete Obsolete Obsolete Obsolete Obsolete

Principais diferenciais

  • Fastest -3 speed grade among 144-TQFP ACEX-1K family members (vs EP1K50TC144-2N)
  • Full 50K-gate density in the 144-TQFP package (vs EP1K30TC144-3N)
  • MultiVolt I/O supports direct 5 V to 3.3 V bridging without level shifters (vs EP1K50QC208-3)

Notas de projeto

The EP1K50TC144-3 requires a clean 2.5 V core supply (VCCINT) plus a MultiVolt VCCIO supply (typically 2.5 V, 3.3 V, or 5.0 V) for the I/O banks. Decouple each VCCINT pin with a 0.1 μF ceramic plus a 10 μF tantalum bulk capacitor placed within 5 mm of the package. Each VCCIO bank has separate supply pins that must be tied to the desired I/O voltage; do NOT leave VCCIO floating - the device will not configure properly without I/O bank power.

Estimated: at 166.67 MHz toggling frequency with 50% logic utilization, the EP1K50TC144-3 dissipates approximately 0.5-1.0 W internally. The 144-TQFP package (theta_JA ~35 C/W on a standard 4-layer JEDEC board) gives a junction temperature rise of 18-35 C above ambient. For commercial-grade parts in lab environments this is acceptable, but at industrial temperatures (-40C to +85C) confirm with worst-case static power models in the Quartus II power analyzer.

The EP1K50TC144-3 is SRAM-based and loses its configuration on power-down; you must either use an external configuration EPROM (Altera EPC2 or compatible) or instantiate the device with a hard-wired controller on every board revision. The JTAG chain order matters when multiple devices share TDI/TDO - verify the BSDL file against your schematic. Note that Quartus II dropped ACEX-1K device support after v9.1, so archive the legacy toolchain or use MAX+PLUS II.

Route all four I/O bank supplies (VCCIO_1 through VCCIO_4) as separate power islands if you intend to mix 2.5 V, 3.3 V, and 5 V I/O standards - sharing one VCCIO rail across banks limits MultiVolt flexibility. Place the EP1K50TC144-3 in the centre of the PCB with short trace lengths to the configuration EPROM and JTAG header. Maintain 50 ohm controlled impedance on clock and high-speed I/O traces, and keep global clock input pins (GCLK) routed on inner layers with continuous ground reference planes beneath.

Informações de conformidade

RoHS
Unknown
REACH
Unknown
AEC-Q100
Not Applicable
Sem chumbo
Unknown
Sem halogênios
Unknown
Minerais de conflito
Unknown

RoHS and lead-free status not stated in the verified web data; consult the Intel/Altera product PCN or distributor documentation for compliance certificates. AEC-Q100 not applicable for this FPGA grade.

Dados verificados em: 2026-09-07 — dados verificados e curados pela equipe de engenharia de componentes da XAIPART

Buscas relacionadas

EP1K50TC144-3 EP1K50TC144-3 datasheet ACEX-1K 50K FPGA Altera EP1K50TC144-3 FPGA 144-pin TQFP FPGA 50K gates EP1K50TC144-3 industrial control EP1K50TC144-3 vs EP1K50QC208-3 EP1K50TC144-3 drop-in replacement buy EP1K50TC144-3 obsolete stock EP1K50TC144-3 pinout diagram ACEX-1K 2.5V FPGA MultiVolt I/O Xilinx XC3S50 vs ACEX-1K EP1K50 what is the max frequency of EP1K50TC144-3

Componentes & termos relacionados

Intel Altera EP1K50TC144-3 ACEX-1K Field-Programmable Gate Array FPGA Programmable Logic Device PLD Logic Array Block LAB Logic Element LE Embedded Array Block EAB dual-port RAM MultiVolt I/O JTAG IEEE 1149.1 TQFP LQFP-144 144-pin TQFP Quartus II MAX+PLUS II ByteBlaster USB-Blaster 2.5 V core supply 166.67 MHz 0.18 μm CMOS system-on-a-programmable-chip SOPC ASIC replacement bus bridging DSP front-end industrial control
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