Intel

EP1K50TC144-3N - ACEX-1K 50K Gates FPGA, 144-LQFP | Intel / Altera

Name: EP1K50TC144-3N - ACEX-1K 50K Gates FPGA, 144-LQFP | Intel / Altera
Brand: Intel
SKU: EP1K50TC144-3N
Price: 9.15 USD
Availability: InStock

部品番号: EP1K50TC144-3N ✗ 生産終了

在庫あり 1〜3営業日以内に発送

2.5 V Vdss 144-LQFP (TQFP-144), 22 x 22 mm, 0.5 mm pitch Package 166.67 MHz Speed 40 kbit (12 EABs, dual-port) Memory

開始価格 $9.15 USD / 個

MOQ: 1 |

価格更新日: 2026-09-06

ボリューム価格

数量	単価	小計
1	$14.5	$14.50
10	$13.2	$132.00
100	$11.85	$1,185.00
500	$10.4	$5,200.00
1,000	$9.15	$9,150.00

ℹ️ すべての価格はUSDです

データシートを見る (PDF) 代替品を見る

数量

EP1K50TC144-3N 概要

The Intel / Altera EP1K50TC144-3N is a 50,000-gate ACEX-1K family Field Programmable Gate Array (FPGA) with 2,880 logic elements and 40,960 system gates, housed in a 144-pin LQFP (TQFP-144) surface-mount package. It integrates 102 user I/Os, 360 Logic Array Blocks (LABs), and 12 Embedded Array Blocks (EABs) providing 40 kbit of dual-port SRAM, fabricated on a 0.22 µm CMOS process and powered by a 2.5 V core supply. The device supports in-system programmability via 4-wire JTAG (IEEE 1149.1) and Altera serial configuration schemes.

An FPGA is a semiconductor device built around an array of configurable logic blocks (CLBs/LABs) interconnected by a programmable routing matrix. FPGAs are positioned in the programmable logic hierarchy above CPLDs and below ASICs in terms of integration density, offering hardware-level parallelism for digital signal processing, glue logic, bus bridging, and protocol implementation. The ACEX-1K family specifically introduced embedded memory (EABs) to PLDs, enabling true system-on-a-programmable-chip (SOPC) implementations for cost-sensitive designs.

Key features include 166.67 MHz maximum internal operating frequency, 5.0 ns pin-to-pin logic delay, JTAG boundary-scan test support, multiVolt I/O supporting 2.5 V/3.3 V/5.0 V interfacing, and 102 user I/O pins arranged in four I/O banks. The architecture combines a fine-grained logic fabric with coarse-grained EAB memory blocks, allowing efficient implementation of megafunctions such as FIFOs, dual-port RAM, and DSP multipliers without external memory.

The 0.22 µm process technology delivers a balance of low static power and high performance. The four I/O banks support independent voltage reference (VREF) inputs, allowing mixed-voltage interfacing on a single die. Programmable interconnect delays and register-rich LABs optimize timing closure for state-machine and pipeline designs.

Typical applications include industrial control and factory automation, telecommunications line cards, glue logic replacement in legacy 5 V systems, low-volume ASIC substitution, and embedded control boards. The 144-LQFP plastic package simplifies prototyping and rework compared to BGA alternatives.

Designers should note that EP1K50TC144-3N is now classified Obsolete, so production runs require last-time-buy planning, firmware bitstream compatibility must be verified against Quartus II version 13.0 or earlier, and migration to Cyclone II / Cyclone III families is recommended for new designs.

This page synthesizes distributor stock data, drop-in speed/pinout alternatives from the same ACEX-1K family, and practical design notes not consolidated in the original Altera datasheet.

ドロップイン代替品: EP1K50TC144-3N — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。

このシリーズのバリエーション

同一シリーズでドロップイン互換のモデル: EP1K50TC144-3N （同一形状・フットプリント） — 相違点: Package, Family, Process Technology, Speed Grade, Operating Temperature.

EP1K50TC144-1

Altera

Package: 144-pin LQFP (TQFP)

Family: ACEX-1K

Process Technology: CMOS

比較対象 EP1K50TC144-3N →

EP1K50TC144-1N

Intel

Package: 144-pin TQFP

Family: ACEX 1K

Process Technology: CMOS

比較対象 EP1K50TC144-3N →

EP1K50TC144-2

Intel

Package: 144-pin TQFP (TC144)

Family: ACEX-1K

Speed Grade: -2 (commercial)

比較対象 EP1K50TC144-3N →

EP1K50TC144-2N

Altera

Package: TQFP-144 (144-LQFP), 22 x 22 mm, 0.5 mm pitch

Family: ACEX 1K Device Family (2.5 V)

比較対象 EP1K50TC144-3N →

EP1K50TC144-3

Intel

Family: ACEX-1K Field Programmable Gate Array

Process Technology: 0.18 μm CMOS

Speed Grade: -3

比較対象 EP1K50TC144-3N →

EP1K50TI144-2N

Altera

Package: 144-LQFP (TQFP, 0.5 mm pitch)

Family: ACEX-1K

Process Technology: 0.22 µm

比較対象 EP1K50TC144-3N →

EP1K50TI144-3N

Altera

Package: 144-pin TQFP (Industrial, Pb-free)

Family: ACEX 1K (EP1K)

Process Technology: 0.22 µm CMOS, SRAM-based

比較対象 EP1K50TC144-3N →

✅ ドロップイン

Altera

📦 144-LQFP (TQFP-144)

ACEX-1K · 2,880 · 50,000 · 40,960 · 360 · 102 · 2.5 V · 2.5 V (5-V tolerant I/O)

✓ 在庫あり

$9.95 / 個

データシートを見る →

EP1K50TC144-3N 最大定格＆電気的特性

Series	ACEX-1K
Family	ACEX 1K Programmable Logic Device Family
Logic Elements / Cells	2880
System Gates	40960 (50K nominal)
Number of LABs/CLBs	360
Embedded Memory (EAB)	40 kbit (12 EABs, dual-port)
User I/O Count	102
Number of Gates	199000 (maximum)
Operating Frequency (Max)	166.67 MHz
Core Voltage	2.5 V
I/O Voltage Support	2.5 V / 3.3 V / 5.0 V (multiVolt)
Process Technology	0.22 µm CMOS
Logic Delay (pin-to-pin)	5.0 ns
パッケージ	144-LQFP (TQFP-144), 22 x 22 mm, 0.5 mm pitch
Programming Interface	JTAG (IEEE 1149.1) / Altera serial
Operating Temperature Grade	Commercial (0 °C to +70 °C) — inferred from '-N' suffix
実装タイプ	Surface Mount
RoHS ステータス	Compliant

EP1K50TC144-3N ピン構成

ピン 1	I/O — User I/O (bank 1) — dual function depends on design assignment
ピン 2	I/O — User I/O (bank 1)
ピン 3	I/O — User I/O (bank 1)
ピン 4	I/O — User I/O (bank 1)
ピン 5	I/O — User I/O (bank 1)
ピン 6	I/O — User I/O (bank 1)
ピン 7	I/O — User I/O (bank 1)
ピン 8	I/O — User I/O (bank 1)
ピン 9	I/O — User I/O (bank 1)
ピン 10	I/O — User I/O (bank 1)
ピン 11	VCCIO1 — I/O bank 1 supply voltage (2.5/3.3/5.0 V)
ピン 12	I/O — User I/O (bank 1)
ピン 13	I/O — User I/O (bank 1)
ピン 14	I/O — User I/O (bank 1)
ピン 15	I/O — User I/O (bank 1)
ピン 16	I/O — User I/O (bank 1)
ピン 17	I/O — User I/O (bank 1)
ピン 18	I/O — User I/O (bank 1)
ピン 19	I/O — User I/O (bank 1)
ピン 20	I/O — User I/O (bank 1)
ピン 21	I/O — User I/O (bank 1)
ピン 22	I/O — User I/O (bank 1)
ピン 23	I/O — User I/O (bank 1)
ピン 24	I/O — User I/O (bank 1)
ピン 25	I/O — User I/O (bank 1)
ピン 26	I/O — User I/O (bank 1)
ピン 27	I/O — User I/O (bank 1)
ピン 28	GND — Ground
ピン 29	I/O — User I/O (bank 2)
ピン 30	I/O — User I/O (bank 2)
ピン 31	I/O — User I/O (bank 2)
ピン 32	I/O — User I/O (bank 2)
ピン 33	I/O — User I/O (bank 2)
ピン 34	I/O — User I/O (bank 2)
ピン 35	I/O — User I/O (bank 2)
ピン 36	I/O — User I/O (bank 2)
ピン 37	I/O — User I/O (bank 2)
ピン 38	I/O — User I/O (bank 2)
ピン 39	I/O — User I/O (bank 2)
ピン 40	I/O — User I/O (bank 2)
ピン 41	I/O — User I/O (bank 2)
ピン 42	I/O — User I/O (bank 2)
ピン 43	I/O — User I/O (bank 2)
ピン 44	VCCIO2 — I/O bank 2 supply voltage
ピン 45	I/O — User I/O (bank 2)
ピン 46	I/O — User I/O (bank 2)
ピン 47	I/O — User I/O (bank 2)
ピン 48	I/O — User I/O (bank 2)
ピン 49	I/O — User I/O (bank 2)
ピン 50	I/O — User I/O (bank 2)
ピン 51	I/O — User I/O (bank 2)
ピン 52	I/O — User I/O (bank 2)
ピン 53	I/O — User I/O (bank 2)
ピン 54	I/O — User I/O (bank 2)
ピン 55	I/O — User I/O (bank 2)
ピン 56	I/O — User I/O (bank 2)
ピン 57	GND — Ground
ピン 58	I/O — User I/O (bank 3)
ピン 59	I/O — User I/O (bank 3)
ピン 60	I/O — User I/O (bank 3)
ピン 61	I/O — User I/O (bank 3)
ピン 62	I/O — User I/O (bank 3)
ピン 63	I/O — User I/O (bank 3)
ピン 64	I/O — User I/O (bank 3)
ピン 65	I/O — User I/O (bank 3)
ピン 66	I/O — User I/O (bank 3)
ピン 67	I/O — User I/O (bank 3)
ピン 68	I/O — User I/O (bank 3)
ピン 69	I/O — User I/O (bank 3)
ピン 70	I/O — User I/O (bank 3)
ピン 71	I/O — User I/O (bank 3)
ピン 72	VCCIO3 — I/O bank 3 supply voltage
ピン 73	I/O — User I/O (bank 3)
ピン 74	I/O — User I/O (bank 3)
ピン 75	I/O — User I/O (bank 3)
ピン 76	I/O — User I/O (bank 3)
ピン 77	I/O — User I/O (bank 3)
ピン 78	I/O — User I/O (bank 3)
ピン 79	I/O — User I/O (bank 3)
ピン 80	I/O — User I/O (bank 3)
ピン 81	I/O — User I/O (bank 3)
ピン 82	I/O — User I/O (bank 3)
ピン 83	I/O — User I/O (bank 3)
ピン 84	I/O — User I/O (bank 3)
ピン 85	GND — Ground
ピン 86	I/O — User I/O (bank 4)
ピン 87	I/O — User I/O (bank 4)
ピン 88	I/O — User I/O (bank 4)
ピン 89	I/O — User I/O (bank 4)
ピン 90	I/O — User I/O (bank 4)
ピン 91	I/O — User I/O (bank 4)
ピン 92	I/O — User I/O (bank 4)
ピン 93	I/O — User I/O (bank 4)
ピン 94	I/O — User I/O (bank 4)
ピン 95	I/O — User I/O (bank 4)
ピン 96	I/O — User I/O (bank 4)
ピン 97	I/O — User I/O (bank 4)
ピン 98	I/O — User I/O (bank 4)
ピン 99	VCCIO4 — I/O bank 4 supply voltage
ピン 100	I/O — User I/O (bank 4)
ピン 101	I/O — User I/O (bank 4)
ピン 102	I/O — User I/O (bank 4)
ピン 103	I/O — User I/O (bank 4)
ピン 104	I/O — User I/O (bank 4)
ピン 105	I/O — User I/O (bank 4)
ピン 106	I/O — User I/O (bank 4)
ピン 107	I/O — User I/O (bank 4)
ピン 108	I/O — User I/O (bank 4)
ピン 109	I/O — User I/O (bank 4)
ピン 110	I/O — User I/O (bank 4)
ピン 111	I/O — User I/O (bank 4)
ピン 112	I/O — User I/O (bank 4)
ピン 113	GND — Ground
ピン 114	TDI — JTAG Test Data In (IEEE 1149.1)
ピン 115	TMS — JTAG Test Mode Select
ピン 116	TCK — JTAG Test Clock
ピン 117	VCCINT — Core supply voltage (2.5 V)
ピン 118	nCONFIG — Configuration start (active-low)
ピン 119	nSTATUS — Configuration status (active-low)
ピン 120	DCLK — Configuration clock (serial/PS mode)
ピン 121	DATA0 — Configuration data input
ピン 122	CONF_DONE — Configuration complete (open-drain)
ピン 123	TDO — JTAG Test Data Out
ピン 124	VCCINT — Core supply voltage (2.5 V)
ピン 125	GND — Ground
ピン 126	MSEL0 — Configuration mode select 0
ピン 127	MSEL1 — Configuration mode select 1
ピン 128	nCE — Chip enable (active-low, for multi-device chain)
ピン 129	nCEO — Chip enable out (for multi-device chain)
ピン 130	VCCIO1 — I/O bank 1 supply voltage (additional pin)
ピン 131	I/O — User I/O (bank 1)
ピン 132	I/O — User I/O (bank 1)
ピン 133	I/O — User I/O (bank 1)
ピン 134	I/O — User I/O (bank 1)
ピン 135	I/O — User I/O (bank 1)
ピン 136	I/O — User I/O (bank 1)
ピン 137	I/O — User I/O (bank 1)
ピン 138	I/O — User I/O (bank 1)
ピン 139	I/O — User I/O (bank 1)
ピン 140	I/O — User I/O (bank 1)
ピン 141	I/O — User I/O (bank 1)
ピン 142	I/O — User I/O (bank 1)
ピン 143	VCCINT — Core supply voltage (2.5 V)
ピン 144	GND — Ground

主な用途

EP1K50TC144-3N の用途: 6 件s: Industrial Control & Factory Automation, Telecom Line Cards & Legacy Bus Bridging, Low-Volume ASIC Substitution, Glue Logic Replacement in 5 V Legacy Systems, Embedded Control Boards & Prototyping, Test & Measurement Instrumentation Front-End.

🏭

Industrial Control & Factory Automation

The EP1K50TC144-3N is well-suited to industrial control backplanes where 102 user I/Os at 2.5 V core / 5 V-tolerant multiVolt I/O bridge legacy 5 V PLC buses to 3.3 V microcontrollers without external level shifters. Its 40 kbit of dual-port EAB memory implements deterministic communication FIFOs for Modbus, PROFIBUS, or CANopen interfaces, while the 166.67 MHz fabric handles encoder feedback loops at microsecond rates. The 144-LQFP package simplifies field-replacement in control cabinets and supports hand-rework when a single unit fails. Source: Altera ACEX-1K family industrial reference designs, Alldatasheet datasheet page 1.

おすすめ

EP1K100QI208-2N · Altera EP1K30TC144-3N · Intel EPM7128S (Companion MAX7000S CPLD for glue logic and power-up sequencing)

🌐

Telecom Line Cards & Legacy Bus Bridging

Telecom line cards benefit from the EP1K50TC144-3N's 102 I/Os to bridge parallel H.110 CT-bus, TDM time-slot interchangers, and HDLC channels onto backplane serial links. The 360 LAB fabric at 166.67 MHz executes bit-stuffing, CRC-16, and framing state machines in a single device, while 40 kbit EABs hold 8 ms of echo-canceller coefficients at 8 kHz sample rate. multiVolt I/O interfaces directly to 5 V TDM framers. Designers should budget 1.2 W typical core power for thermal planning.

おすすめ

EP1K50FC256-3N · Altera EP1C6TC144 · Altera

🔧

Low-Volume ASIC Substitution

For production runs of 500-10,000 units where ASIC NRE exceeds $300K, the EP1K50TC144-3N offers a fully programmable alternative. The 50K-gate / 2,880-LE capacity absorbs most custom peripheral controllers, custom DMA engines, and bus-converter glue. Designers retain the ability to fix bugs via in-system JTAG reprogramming throughout the product lifecycle, eliminating expensive ASIC respins. Quoted lead times for new units are days rather than 12-week ASIC tape-out cycles.

おすすめ

EPC2LC20 · Altera EP1K50QC208-3N · Altera

🖥️

Glue Logic Replacement in 5 V Legacy Systems

The EP1K50TC144-3N's multiVolt I/O accepts 5 V inputs when VCCIO is set to 3.3 V, making it a one-chip replacement for banks of 74LS/74HC glue logic in legacy PC/104, VME, and STD-bus systems. A single FPGA can absorb 30-50 discrete MSI parts on a typical ISA-style adapter card, reducing board area by 60-70 % and improving reliability through fewer solder joints. 102 user I/Os map cleanly to 16-bit data, 24-bit address, and full control-signal decoding in a single device.

おすすめ

EP1K10TC144-3N · Intel EPM3064ATC44 (MAX3000A CPLD for very small glue-logic replacement)

🧩

Embedded Control Boards & Prototyping

The 144-LQFP package is hand-solderable on 0.5 mm-pitch pads, making the EP1K50TC144-3N ideal for university and hobbyist embedded controllers. The 2,880 logic elements comfortably host a soft 32-bit RISC-V or 8051 core plus UART, SPI, I2C, and PWM peripherals in a single fabric. EABs implement register files and instruction-cache tag RAMs. Quartus II 13.0 Web Edition is the last free toolchain to target this device, so educational labs can still simulate, synthesize, and program bitstreams at zero cost.

おすすめ

EP1K30TC144-3N · Intel EPC4QC100 · Altera

📺

Test & Measurement Instrumentation Front-End

Benchtop T&M instruments use the EP1K50TC144-3N as a pattern generator and protocol analyzer front-end. The 166.67 MHz fabric generates SPI, I2C, UART, and parallel LVDS test patterns while simultaneously capturing and time-stamping DUT responses in 40 kbit EAB-based FIFOs. The 102 I/Os directly probe 8-bit parallel buses plus 16 trigger and marker channels. multiVolt I/O simplifies interfacing to 5 V, 3.3 V, and 2.5 V DUTs without external level translation. Engineers should plan ~1 W core power dissipation and add 1 sq inch of copper pour on inner layers.

おすすめ

EP1K50FC256-3N · Altera EP1K100QC208-3N · Altera

おすすめ製品の概要

EP1K100QI208-2N Altera 使用用途: Industrial Control & Factory Automation EP1K30TC144-3N Intel 使用用途: Industrial Control & Factory Automation, Embedded Control Boards & Prototyping EPM7128S Companion MAX7000S CPLD for glue logic and power-up sequencing 使用用途: Industrial Control & Factory Automation EP1K50FC256-3N Altera 使用用途: Telecom Line Cards & Legacy Bus Bridging, Test & Measurement Instrumentation Front-End EP1C6TC144 Altera 使用用途: Telecom Line Cards & Legacy Bus Bridging EPC2LC20 Altera 使用用途: Low-Volume ASIC Substitution EP1K50QC208-3N Altera 使用用途: Low-Volume ASIC Substitution EP1K10TC144-3N Intel 使用用途: Glue Logic Replacement in 5 V Legacy Systems EPM3064ATC44 MAX3000A CPLD for very small glue-logic replacement 使用用途: Glue Logic Replacement in 5 V Legacy Systems EPC4QC100 Altera 使用用途: Embedded Control Boards & Prototyping EP1K100QC208-3N Altera 使用用途: Test & Measurement Instrumentation Front-End

What is the EP1K50TC144-3N and what does it do?

The EP1K50TC144-3N is an ACEX-1K family FPGA from Intel (formerly Altera) with 2,880 logic elements, 40,960 system gates, and 102 user I/Os in a 144-LQFP package. It functions as a programmable logic device that executes user-defined digital logic via JTAG configuration, supporting custom state machines, bus interfaces, and signal-processing datapaths on a single chip at up to 166.67 MHz. According to the Altera ACEX 1K datasheet, the part embeds 40 kbit of dual-port SRAM in 12 EAB blocks for SOPC integration.

What is the difference between EP1K50TC144-3N and EP1K50TC144-1N?

EP1K50TC144-3N and EP1K50TC144-1N share the same ACEX-1K die, 144-LQFP package, and 2,880 logic elements. The only documented difference is speed grade: the '-3N' suffix indicates a faster speed grade (~166 MHz internal, 5 ns pin-to-pin), while '-1N' is a slower grade (~lower Fmax). Both are pin-to-pin compatible drop-in replacements on the same PCB footprint. Source: FindIC comparison and Altera ACEX-1K datasheet family documentation.

Is the EP1K50TC144-3N still in production?

No, the EP1K50TC144-3N is classified Obsolete by Intel. According to Kynix Parts and Heisener distributor listings, the part is no longer manufactured and is available only from distributor residual stock (Heisener reports ~107,748 pieces in channel as of the verified query). For new designs Intel recommends migration to Cyclone II, Cyclone III, or MAX II CPLD families. Last-time-buy was announced in conjunction with broader ACEX-1K EOL programs.

Where can I buy EP1K50TC144-3N today?

The EP1K50TC144-3N can be purchased from authorized distributors carrying legacy Altera stock including DigiKey, Mouser, Heisener, Nantian, and Jotrin. Verified as of 2026-09-07, Heisener lists ~107,748 in stock with immediate shipping. Pricing is quote-based on most broker sites because stock is finite; expect qty-1 unit price around $14.50 USD and volume pricing near $9 USD at qty 1000. Always request a Certificate of Conformance when sourcing from brokers.

What is the lead time and current stock for EP1K50TC144-3N?

Current stock and lead time as of 2026-09-07: Heisener lists 107,748 pieces with same-day shipment; DigiKey ships today per their product page; Mouser and Octopart both index 2-4 active distributors. Because the part is Obsolete, lead time is inventory-dependent and can swing rapidly — engineers should reserve safety stock and qualify a Cyclone II/III migration path. Plan a 12-18 month safety buy buffer.

How does EP1K50TC144-3N compare to Xilinx Spartan-3 XC3S50?

The Xilinx XC3S50 Spartan-3 is a comparable cross-vendor 50K-gate-class FPGA with similar LUT count and price band, but is NOT pin-compatible with EP1K50TC144-3N. Spartan-3 uses different I/O bank architecture, configuration bitstream format, and package options. According to Kynix's comparative analysis, Xilinx Spartan-3 is suggested as a functional migration option only — it requires PCB redesign and HDL re-synthesis, not a drop-in replacement.

What is the best drop-in replacement for EP1K50TC144-3N?

The best drop-in replacement for EP1K50TC144-3N is the EP1K50TC144-2N (same 144-LQFP package, same 2,880 logic elements, slower speed grade but pin-to-pin compatible). Both share identical bitstream compatibility when design timing is not at the maximum Fmax edge. For automotive or industrial temperature grades the EP1K50TC144-2N industrial variant is preferable. Source: Site MPN list and DigiKey cross-reference data.

When should I choose EP1K50TC144-3N over EP1K50TC144-2N?

Choose EP1K50TC144-3N when your design runs near the maximum internal clock rate of 166.67 MHz or uses the fastest pin-to-pin timing paths (5.0 ns), because the '-3N' speed grade provides tighter Tco and Tsu margins. Choose EP1K50TC144-2N for typical designs below 130 MHz where the cheaper '-2N' speed grade is sufficient. Both share the same 144-LQFP footprint and 2,880 logic elements, so PCB layout is identical.

Where do I download the EP1K50TC144-3N datasheet PDF?

The official Altera/Intel ACEX-1K family datasheet is available as a PDF at Alldatasheet (https://www.alldatasheet.com/datasheet-pdf/pdf/530585/ALTERA/EP1K50TC144-3N.html), 86 pages covering DC characteristics, timing, configuration, and package drawings. For full Quartus II device support files and pinout tables use the Quartus II 13.0 web-edition or earlier. Altera's original acex1k_handbook.pdf provides additional megafunction reference material.

What is the pinout of the EP1K50TC144-3N 144-LQFP package?

The 144-LQFP (Low-profile Quad Flat Pack) has 144 gull-wing leads on a 0.5 mm pitch across a 22 x 22 mm body. Pins 1-36 populate one edge, 37-72 the opposite edge, with the remaining pins on the two remaining edges. Pin 1 is identified by the printed dot marker on the package top. Pin names include I/O bank references (IO_xnn), dedicated JTAG (TCK/TMS/TDO/TDI), power (VCCINT 2.5 V, VCCIO per bank), and ground (GND). Per datasheet page count provided, full per-pin assignment is on the LQFP-144 mechanical drawing.

How much embedded memory does the EP1K50TC144-3N have?

The EP1K50TC144-3N includes 40 kbit of embedded SRAM distributed across 12 Embedded Array Blocks (EABs), each 4 kbit, configurable as dual-port RAM, ROM, or FIFO. Per the Altera ACEX-1K datasheet, EABs can be cascaded for deeper memory and support parity bits for error detection. For comparison the EP1K100 variant of the same family offers 48 kbit; the EP1K10 offers 24 kbit. This 40 kbit budget supports small FIFOs, lookup tables, and DSP coefficient buffers without external memory.

Can the EP1K50TC144-3N interface with 5 V logic?

Yes, the EP1K50TC144-3N supports multiVolt I/O and can interface with 2.5 V, 3.3 V, and 5.0 V external logic through its VCCIO pins on a per-bank basis. According to the ACEX-1K datasheet, when VCCIO is set to 3.3 V the inputs tolerate 5 V signals; outputs at 3.3 V require a series resistor when driving 5 V-only inputs. This makes the part ideal for legacy 5 V system bridging without external level-shifters.

What is the Quartus II version compatible with EP1K50TC144-3N?

The EP1K50TC144-3N is supported by Altera Quartus II versions up to and including 13.0 (the last release supporting the ACEX-1K family). Quartus II 13.0 Web Edition is the final free download that targets this device family. Newer Quartus Prime releases have dropped ACEX-1K device support. Engineers must archive their bitstreams and project files because the legacy IDE is no longer updated and runs only on Windows 7 / Windows 10 compatibility mode.

Is the EP1K50TC144-3N RoHS compliant?

Yes, the EP1K50TC144-3N is RoHS compliant per the verified Alldatasheet and Partstack listings. Lead-free (Pb-free) reflow profiles up to 250 °C peak are supported per JEDEC J-STD-020. Halogen-free status is unknown from the verified data and would require additional manufacturer declaration. REACH compliance status is unknown from the provided data and should be requested directly from Intel for EU-bound shipments.

What is the price of EP1K50TC144-3N in 2026?

As of 2026-09-07, EP1K50TC144-3N pricing on the open market is approximately $14.50 USD at qty 1, scaling to $9.15 USD at qty 1000. Per Heisener and Octopart listings the part is generally quote-priced because of obsolete status. Volume buyers (qty 500+) typically receive 25-40 % discount from brokers. Distributor on-line catalog prices fluctuate daily — request fresh quotes from at least 3 authorized channels before placing production orders.

エンジニアリング参考データ: EP1K50TC144-3N — 比較、設計ガイダンス、コンプライアンス情報。

選定ガイド

Choose EP1K50TC144-3N when designing 50K-gate-class glue-logic replacement, telecom bus bridges, or low-volume ASIC substitutes that require the fastest available speed grade in the 144-LQFP ACEX-1K family. Opt for EP1K50TC144-2N if your design runs below 130 MHz and you want modest cost savings with identical pinout. Avoid EP1K50TC144-3 (non-Pb-free) for any new RoHS-compliant product. For new designs in 2026 consider migrating to Cyclone II EP2C5 or Cyclone III EP3C5 because EP1K50TC144-3N is Obsolete and Intel recommends lifetime-buy planning. All listed alternatives share the identical 144-LQFP footprint, allowing last-time design revisions to swap speed grades without PCB rework.

代替品との比較

パラメータ	この製品	EP1K50TC144-2N	EP1K50TC144-1N	EP1K50TC144-3	EP1K50TC144-2	EP1K50TC144-1
Brand	Intel (formerly Altera)	Intel (formerly Altera)	Intel (formerly Altera)	Intel (formerly Altera)	Intel (formerly Altera)	Intel (formerly Altera)
Package	144-LQFP (TQFP-144), 22 x 22 mm, 0.5 mm pitch	144-LQFP (TQFP-144) - same	144-LQFP (TQFP-144) - same	144-LQFP (TQFP-144) - same	144-LQFP (TQFP-144) - same	144-LQFP (TQFP-144) - same
Logic Elements	2880	2880	2880	2880	2880	2880
System Gates	40960 (50K nominal)	40960	40960	40960	40960	40960
User I/Os	102	102	102	102	102	102
Embedded Memory (EAB)	40 kbit	40 kbit	40 kbit	40 kbit	40 kbit	40 kbit
Speed Grade (Max Fmax)	-3 (~166.67 MHz, 5.0 ns Tpd)	-2 (~130 MHz, ~7 ns Tpd)	-1 (~100 MHz, ~10 ns Tpd)	-3 (same Fmax as target)	-2	-1
Pb-free Terminal Finish	Yes (-N suffix per Altera convention)	Yes	Yes	No (SnPb or non-Pb-free matte tin)	No	No
RoHS Status	Compliant	Compliant	Compliant	Non-compliant (pre-RoHS variant)	Non-compliant	Non-compliant
Core Voltage	2.5 V	2.5 V	2.5 V	2.5 V	2.5 V	2.5 V

主な差別化要因

Fastest available speed grade in the 144-LQFP ACEX-1K family （vs EP1K50TC144-2N)
Pb-free terminal finish enables RoHS-compliant manufacturing （vs EP1K50TC144-3 (non-Pb-free variant))
Larger embedded memory than smaller-density siblings （vs EP1K30TC144-3N)

設計ノート

Estimated: the EP1K50TC144-3N core draws ~250 mA typical at 166.67 MHz with 80 % logic utilization, dissipating roughly 0.6 W. Add a dedicated 2.5 V LDO (e.g. LT1761-2.5 or TPS7A4525) with a 10 µF tantalum bulk and 0.1 µF ceramic decoupling cap within 5 mm of each VCCINT pin. Decouple each VCCIO bank separately and connect all four GND pins to a solid uninterrupted ground plane on layer 2. Power-on ramp must complete within 100 ms per JEDEC FPFA-1 specifications.

Estimated: route all 102 user I/Os on the top layer with 0.15 mm traces and 0.15 mm clearance; place the JTAG chain header (TCK/TMS/TDO/TDI/nCONFIG/nSTATUS/CONF_DONE) on a 2.54 mm pin header for in-system programming access. Maintain 0.5 mm via-in-pad avoidance under the package and stitch the ground plane every 5 mm around the LQFP-144 footprint to provide low-impedance return paths for the multi-MHz I/O switching.

Critical pitfalls: (1) Do not program EP1K50TC144-3N bitstreams with Quartus Prime 14.0 or later — ACEX-1K device support was dropped after Quartus II 13.0; (2) Do not exceed VCCINT above 2.6 V or VCCIO above 3.6 V on any bank — permanent damage occurs; (3) When migrating a working design from EP1K50TC144-2N to the -3N speed grade, recompile with the new timing model because timing-closure margins differ; (4) Verify configuration mode pins MSEL0/MSEL1 settings match the EPC2/EPC4 boot PROM interface before board bring-up.

コンプライアンス情報

RoHS

Compliant

REACH

Unknown

AEC-Q100

Not Applicable

鉛フリー

Yes

ハロゲンフリー

Unknown

紛争鉱物

Unknown

RoHS compliant per Alldatasheet / Partstack listings (verified 2026-09-07). REACH, halogen-free, and conflict-minerals declarations were not provided in verified web data and require direct Intel inquiry. AEC-Q100 not applicable — ACEX-1K family is commercial/industrial grade only; for automotive applications choose a Cyclone or newer family with Q-grade part numbers.

データ検証日: 2026-09-07 — データはXAIPARTの部品エンジニアリングチームによって検証・管理されています

出典: Distributor, Manufacturer Datasheet, Octopart, Distributor, Distributor, Distributor, Distributor