Intel

EP1K50TQ144-1 - ACEX 1K FPGA 50K Gates 144-TQFP | Intel (Altera)

Артикул: EP1K50TQ144-1 ✗ Снят с производства

В наличии Отправка в течение 1–3 рабочих дней

2.5 V Vdss TQFP-144 Package up to 250 MHz Speed

От $18.75 USD / шт.

MOQ: 1 |

Цена обновлена: 2026-09-06

Оптовые цены

Кол-во	Цена за ед.	Итого
1	$38.5	$38,50
10	$34.2	$342,00
100	$28.9	$2.890,00
500	$22.4	$11.200,00
1.000	$18.75	$18.750,00

ℹ️ Все цены указаны в USD

Открыть datasheet (PDF) Смотреть аналоги

Количество

EP1K50TQ144-1 Обзор

The Intel (formerly Altera) EP1K50TQ144-1 is a member of the ACEX 1K programmable logic device family, providing 50,000 typical gates and 2,880 logic elements in a 144-pin TQFP (Thin Quad Flat Pack) package. Built on a 0.22 µm SRAM-process technology with a 2.5 V core supply, this device delivers up to 250 MHz internal operation and integrates dual-port RAM and a Look-Up Table (LUT)-based logic fabric. The '-1' speed grade denotes the standard-performance timing bin within the ACEX 1K lineup, while 'TQ144' specifies the TQFP-144 package outline.

An FPGA (Field Programmable Gate Array) is a semiconductor integrated circuit whose logic function is defined by a user-supplied configuration bitstream rather than at the foundry. FPGAs sit at the top of the programmable logic hierarchy (PLD -> CPLD -> FPGA -> SoC FPGA) and are used to implement custom digital logic, glue logic, state machines, DSP pipelines, and full processor subsystems after PCB fabrication. The ACEX 1K family was Altera's low-cost, 2.5 V entry in the early-2000s FPGA market, targeting glue-logic, communications, and industrial-control applications where ASIC NRE was not justified.

Key features of the EP1K50TQ144-1 include 102 maximum user I/O pins, 40,960 typical gates, 2,880 logic elements (LEs), 360 Logic Array Blocks (LABs), embedded dual-port RAM blocks (EABs) totaling 40 Kbits, in-system programmability via IEEE 1149.1 (JTAG) and the Altera EPC4/EPC8/EPC16 enhanced configuration devices, multiVolt I/O supporting 2.5 V / 3.3 V interfaces, and LVTTL/LVCMOS/LVDS/LVDS-compatible signaling. The device operates from a 0 °C to +70 °C commercial temperature range (commercial grade for the -1 speed bin at TQFP-144).

Architecturally, the ACEX 1K combines a continuous interconnect network with embedded array blocks (EABs) that implement memory and complex logic functions. Each LE contains a 4-input LUT, a programmable register, and dedicated carry and cascade chains, while each EAB provides up to 4 Kbits of dual-port RAM or ROM. The 0.22 µm process and 2.5 V core reduce power relative to 5 V PLDs of the same era, and the JTAG-based ISP enables board-level reconfiguration without removing the part.

Typical applications include low-cost glue logic, communications protocol bridges, industrial control, display controllers, and legacy system refresh where a pin-compatible second-source is required. The TQFP-144 footprint supports hand-soldering and rework, useful for prototypes and low-volume production.

When designing with this device, mind the 2.5 V VCCINT supply — a separate VCCIO bank is needed for 3.3 V interfaces, and configuration must use an Altera EPC-series device or a microprocessor-driven passive-serial scheme. The part is mature/legacy; consult Intel's product lifecycle notices for current status before committing new designs.

This page synthesizes drop-in TQFP-144 alternates from the ACEX 1K family, current distributor pricing, and practical design notes not found in the original datasheet.

Аналоги без доработки для EP1K50TQ144-1 — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.

Варианты в этой серии

Модели той же серии, совместимые без доработки с EP1K50TQ144-1 (тот же форм-фактор и посадочное место) — отличается по Package, Speed Grade, Process Technology, Operating Temperature, Family.

EP1K50TC144-1

Altera

Package: 144-pin LQFP (TQFP)

Process Technology: CMOS

Family: ACEX-1K

Сравнить с EP1K50TQ144-1 →

EP1K50TC144-1N

Intel

Package: 144-pin TQFP

Speed Grade: -1

Process Technology: CMOS

Сравнить с EP1K50TQ144-1 →

EP1K50TC144-2

Intel

Package: 144-pin TQFP (TC144)

Speed Grade: -2 (commercial)

Process Technology: 0.22 µm CMOS

✅ Прямая замена

Intel

📦 TQFP-144

ACEX-1K · 50,000 · 40,960 · 2,880 · 360 · 49,152 · 102 · 2.5 V

✓ В наличии

$28.4 / шт.

Открыть даташит →

EP1K50TQ144-1 Максимальные параметры и электрические характеристики

Family	ACEX 1K
Logic Elements	2,880
Typical Gates	50,000
Maximum User I/O	102
Logic Array Blocks (LABs)	360
Embedded Array Blocks (EABs)	40 Kbits (dual-port RAM)
Process Technology	0.22 µm SRAM
Core Supply Voltage (VCCINT)	2.5 V
I/O Supply Voltage (VCCIO)	2.5 V / 3.3 V (multiVolt)
Internal Operating Frequency	up to 250 MHz
Speed Grade	-1 (standard)
Корпус	TQFP-144
Configuration Interface	JTAG (IEEE 1149.1) + EPC4/EPC8/EPC16 + passive serial
In-System Programmability	Yes
Рабочая температура	0 °C to +70 °C (commercial)

Конфигурация выводов EP1K50TQ144-1

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

Типичное применение

EP1K50TQ144-1 подходит для 6 применениеs: Legacy Glue Logic Replacement, Industrial Control and Motor Drive Interface, Communications Protocol Bridging, Display Controller and Video Timing, Test and Measurement Front-End, Legacy System Refresh and Form-Fit Replacement.

🏭

Legacy Glue Logic Replacement

The EP1K50TQ144-1 fits legacy glue-logic replacement boards because its 2,880 logic elements, 102 user I/Os, and TQFP-144 footprint were designed into many late-1990s/early-2000s industrial and communications designs. Its 50,000-gate capacity comfortably handles bus bridges, address decoding, FIFO control, and asynchronous interface adaptation that previously required several discrete 74-series TTL/MSI parts. Compared with discrete logic, the EP1K50TQ144-1 collapses 5-15 chips into one FPGA, reduces board area, and allows post-build bug fixes via JTAG reconfiguration. Power is supplied at 2.5 V VCCINT with a separate VCCIO bank for 3.3 V interfaces thanks to multiVolt I/O. Programming is via Altera Quartus II 5.0/6.0 with EPC4/EPC8/EPC16 configuration devices or passive-serial from a microcontroller.

Рекомендуется

EPC4 (Enhanced Configuration Device (Altera)) EPC8 (Enhanced Configuration Device (Altera)) EPC16 (Enhanced Configuration Device (Altera))

🏭

Industrial Control and Motor Drive Interface

The EP1K50TQ144-1 is well-suited for industrial control cards driving stepper/servo motors because its 102 user I/Os accept LVTTL/LVCMOS encoder feedback, end-of-travel switches, and PWM control signals from upstream MCUs. The 40-Kbit embedded dual-port RAM (distributed across 10 EABs) holds PID coefficients, motion profiles, and encoder counters without external SRAM. MultiVolt I/O allows 5 V-tolerant input interfacing through a 3.3 V VCCIO bank with proper clamping. The device operates on a 0-70 °C window, which covers most factory-floor enclosures, and the TQFP-144 package is hand-solderable for prototype rework. Note that the EP1K50TI144-1 industrial-grade sibling should be selected for harsher -40 °C to +85 °C environments.

Рекомендуется

EP1K50TI144-1 (Industrial temp grade sibling for -40 to +85 C) MAX232 (RS-232 line driver (legacy serial I/O))

🌐

Communications Protocol Bridging

Communications protocol bridges — UART-to-SPI, I2C-to-parallel, HDLC framing, and custom serializer/deserializer — are a natural fit for the EP1K50TQ144-1 because 2,880 LEs are sufficient for state-machine-driven protocol engines running at 50-100 MHz. The 360 LABs and embedded dual-port RAM allow separate TX and RX FIFOs in a single device. The TQFP-144 footprint supports 102 user I/Os, enough to drive multiple parallel buses plus a management serial interface. The part is commonly paired with a PHY such as an RS-485 transceiver or 10/100 Ethernet MAC. Programming through JTAG and EPC-series configuration devices allows field upgrades as protocols evolve.

Рекомендуется

DP83848 (10/100 Ethernet PHY (external MAC bridge)) MAX485 (RS-485 transceiver for industrial buses)

📺

Display Controller and Video Timing

Display timing generation and simple LCD controller logic are well within the EP1K50TQ144-1's capability: the 250 MHz internal operating frequency supports standard VGA (25 MHz pixel) and low-resolution LVDS panel interfaces, and the 40-Kbit embedded RAM can buffer 1-2 scanlines of color data without external SRAM. With 102 user I/Os the FPGA can drive 18/24-bit RGB buses plus HSYNC/VSYNC/DE and a parallel host interface. MultiVolt I/O banks allow direct 3.3 V connection to modern TFT drivers. For LVDS panels, the EP1K50 has dedicated LVDS outputs in the TQFP-144 package, simplifying PCB layout. Pair with an EPC4 configuration device for instant-on boot.

Рекомендуется

EPC4 (Configuration device for instant-on display boot) ADV7123 (External 8-bit RGB-to-VGA DAC companion)

🔧

Test and Measurement Front-End

Test and measurement front-ends benefit from the EP1K50TQ144-1 because its 250 MHz internal operating frequency and 102 I/Os let a single device implement pattern generation, response capture, and trigger logic for digital boundary-scan or custom ATE applications. The 4-input LUT-based fabric plus dedicated carry chains enables efficient binary counters and CRCs used in BER testing. Embedded dual-port RAM stores stimulus patterns and captured responses without external memory. JTAG-based in-system programmability makes pattern re-loading trivial. The TQFP-144 footprint supports hand rework in lab prototypes, and the part is widely available from secondary distributors.

Рекомендуется

SN74LVC4245A (Voltage translation buffer for 5 V/3.3 V DUTs) 74HC245 (Bidirectional bus driver for legacy DUTs)

✈️

Legacy System Refresh and Form-Fit Replacement

The EP1K50TQ144-1 is commonly specified for legacy system refresh projects where the original board layout, BOM, and firmware were certified around the Altera ACEX 1K part. Keeping the same TQFP-144 footprint allows drop-in replacement on existing PCBs without respinning layout, and the identical -1 speed bin preserves timing margins. This is especially important in regulated industries (medical, aerospace, defense) where re-certification cost dominates. The part is also a useful emulation target for bit-accurate software models. New designs should migrate to Cyclone IV/10 equivalents; legacy designs continue to be supported by the EPC configuration device family and existing Quartus II 5.0/6.0 software.

Рекомендуется

Сводка рекомендуемых товаров

EPC4 Enhanced Configuration Device (Altera) Используется в: Legacy Glue Logic Replacement, Display Controller and Video Timing EPC8 Enhanced Configuration Device (Altera) Используется в: Legacy Glue Logic Replacement EPC16 Enhanced Configuration Device (Altera) Используется в: Legacy Glue Logic Replacement EP1K50TI144-1 Industrial temp grade sibling for -40 to +85 C Используется в: Industrial Control and Motor Drive Interface MAX232 RS-232 line driver (legacy serial I/O) Используется в: Industrial Control and Motor Drive Interface DP83848 10/100 Ethernet PHY (external MAC bridge) Используется в: Communications Protocol Bridging MAX485 RS-485 transceiver for industrial buses Используется в: Communications Protocol Bridging ADV7123 External 8-bit RGB-to-VGA DAC companion Используется в: Display Controller and Video Timing SN74LVC4245A Voltage translation buffer for 5 V/3.3 V DUTs Используется в: Test and Measurement Front-End 74HC245 Bidirectional bus driver for legacy DUTs Используется в: Test and Measurement Front-End EP1K50TC144-1 Altera Используется в: Legacy System Refresh and Form-Fit Replacement EP1K100QC208-1 Altera Используется в: Legacy System Refresh and Form-Fit Replacement

What is the EP1K50TQ144-1?

The EP1K50TQ144-1 is an ACEX 1K family FPGA from Intel (formerly Altera) offering 50,000 typical gates and 2,880 logic elements in a 144-pin TQFP package. Built on 0.22 µm SRAM process technology at 2.5 V core, it is a programmable logic device targeting low-cost glue logic and communications bridging. The '-1' speed grade is the standard-timing bin for this package outline.

What is the logic element count of EP1K50TQ144-1?

The EP1K50TQ144-1 contains 2,880 logic elements organized into 360 Logic Array Blocks (LABs), according to the ACEX 1K family datasheet. Each LE includes a 4-input LUT, a programmable register, and dedicated carry/cascade chains. Total embedded memory is 40 Kbits distributed across the EABs as dual-port RAM.

How many user I/O pins does EP1K50TQ144-1 provide?

The EP1K50TQ144-1 provides 102 maximum user I/O pins in the TQFP-144 package. The remaining pins are dedicated to VCCINT, VCCIO, GND, JTAG, configuration (nCONFIG, nSTATUS, CONF_DONE, MSELn, nCE), and clock inputs. The multiVolt I/O bank supports LVTTL, LVCMOS, and LVDS signaling at 2.5 V or 3.3 V.

Is EP1K50TQ144-1 still in production?

The EP1K50TQ144-1 is a legacy Altera ACEX 1K part that has been migrated to obsolete status in Intel's product lifecycle after the Altera acquisition. Authoritative stock is now available only through distributors carrying aged inventory, franchised brokers, or the secondary market. New designs should consider Cyclone IV or Cyclone 10 LP as drop-in upgrades with compatible footprint offerings in the same family lineage.

Where can I buy EP1K50TQ144-1 online?

The EP1K50TQ144-1 is available from authorized distributors carrying legacy Altera inventory, including DigiKey, Mouser, Avnet, and approved aftermarket suppliers. As of 2026-09-07, sourcing is quote-based and lead times may extend 4-8 weeks due to obsolete status. XAIPART also lists compatible ACEX 1K alternates with confirmed pricing tiers on its product pages.

What is the price of EP1K50TQ144-1?

As of 2026-09-07, the EP1K50TQ144-1 prices start near $38.50 at qty-1 at franchised distributors, dropping to approximately $18.75 at qty-1,000 on volume orders (typical at DigiKey/Mouser for aged inventory). Lead times vary; the part is obsolete from Altera/Intel, so pricing reflects scarcity rather than spot pricing from authorized channels.

What is the lead time for EP1K50TQ144-1?

Lead time for the obsolete EP1K50TQ144-1 is typically 4-8 weeks when sourced through franchised distributors with remaining stock, per current DigiKey/Mouser listings as of 2026-09-07. Independent distributors may have faster delivery but at premium prices. For new designs, switching to a Cyclone-series equivalent is recommended to avoid end-of-life supply risk.

EP1K50TQ144-1 vs EP1K100QC208-1 - which fits a larger design?

The EP1K100QC208-1 has approximately twice the logic capacity of the EP1K50TQ144-1: 100K gates, 4,992 LEs, 624 LABs in a PQFP-208 package with 147 I/Os, vs the 50K-gate / 2,880-LE / 102-I/O TQFP-144 of the EP1K50TQ144-1. Choose EP1K100QC208-1 when designs exceed 2,800 LEs or need more than 102 I/Os; choose EP1K50TQ144-1 for smaller pin-count boards.

EP1K50TQ144-1 vs Cyclone IV EP4CE6 - which is better for a new design?

The Cyclone IV EP4CE6 is a modern active-production successor with 6,272 LEs, 92 I/Os, a 1.2 V core, and lower power than the EP1K50TQ144-1. Choose EP4CE6 for any new design because it is active, faster, cheaper per LE, supported by current Quartus Prime, and available in TQFP-144/EQFP-144 packages. Keep EP1K50TQ144-1 only for legacy board replacement.

When should I choose EP1K50TQ144-1 over a Cyclone IV part?

Choose the EP1K50TQ144-1 only when (1) you are repairing or replicating a legacy board with an existing TQFP-144 footprint, (2) your design is already compiled for ACEX 1K with Quartus II 5.0/6.0 and migrating bitstreams is not feasible, or (3) the project must match a specific 2.5 V VCCINT supply rail already on the PCB. For all other cases a Cyclone IV/10 device is preferred.

What is the best drop-in replacement for EP1K50TQ144-1?

The closest pin-compatible drop-in for the EP1K50TQ144-1 (TQFP-144, same family, same speed bin) is the EP1K50TC144-1 — the only difference is thermal grade (commercial vs. industrial package suffix). Both share the same 2,880-LE ACEX 1K die and footprint, so the TC variant can directly replace TQ parts on the same PCB land pattern without rework.

Can EP1K50TI144-1 replace EP1K50TQ144-1?

The EP1K50TI144-1 is in the same TQFP-144 footprint but is the industrial temperature-grade (-40 °C to +85 °C) variant of the same die, so it can drop into the EP1K50TQ144-1 footprint with no PCB rework. Functionally and parametrically they are identical; the difference is the operating-temperature window. This makes the TI version a safe drop-in for harsher environments.

Where to download EP1K50TQ144-1 datasheet PDF?

The EP1K50TQ144-1 datasheet (originally titled 'ACEX 1K Device Family, 2.5 V, Data Sheet', document number A-DS-ACEX1K-02) is available as a PDF from Alldatasheet at https://www.alldatasheet.com/datasheet-pdf/pdf/536488/ALTERA/EP1K50.html. The original Altera/Intel document can also be searched through Intel's legacy FPGA support portal under ACEX 1K documentation.

What is the difference between EP1K50TQ144-1 and EP1K50TC144-1?

Both the EP1K50TQ144-1 and EP1K50TC144-1 are ACEX 1K family members with the same 2,880 LEs, same TQFP-144 package, same -1 speed grade, and same 102 I/Os — the only difference is the temperature range, with '-T' typically denoting commercial (0 °C to +70 °C) and the device being pin-compatible across both grades. The TC variant is generally a drop-in alternative.

Справочные инженерные данные для EP1K50TQ144-1 — сравнение, рекомендации по проектированию и информация о соответствии.

Руководство по выбору

Choose the EP1K50TQ144-1 only when maintaining an existing TQFP-144 footprint and Quartus II 5.0/6.0 bitstream compatibility is critical — typically for legacy industrial, communications, or display-controller boards that were certified around the ACEX 1K family. For all new designs, select the EP4CE6 (Cyclone IV) or 10CL025 (Cyclone 10 LP) instead, as they are active, faster, lower power, supported by current Quartus Prime, and offered in similar TQFP-144 footprints. Use the EP1K50TC144-1 as the cleanest drop-in if the original ACEX 1K die is preferred; use the EP1K50TI144-1 for -40 °C to +85 °C industrial environments. None of these alternates require PCB changes — they share the same TQFP-144 land pattern as the EP1K50TQ144-1.

Сравнение с аналогами

Параметр	Этот товар	EP1K50TC144-1	EP1K50TC144-1N	EP1K50TI144-1	EP1K50TC144-2
Package	TQFP-144	TQFP-144 (same)	TQFP-144 (same)	TQFP-144 (same)	TQFP-144 (same)
Brand	Intel (Altera)	Intel (Altera)	Intel (Altera)	Intel (Altera)	Intel (Altera)
Logic Elements	2,880	2,880	2,880	2,880	2,880
Speed Grade	-1	-1	-1	-1	-2 (slower, ~20% timing penalty)
Operating Temperature	0 °C to +70 °C	0 °C to +70 °C	0 °C to +70 °C	-40 °C to +85 °C (industrial)	0 °C to +70 °C
User I/O Count	102	102	102	102	102
Lead-Free (RoHS)	Process dependent (legacy)	Process dependent	Yes (lead-free suffix)	Process dependent	Process dependent
Lifecycle Status	Obsolete (as of 2026-09-07)	Obsolete	Obsolete	Obsolete	Obsolete

Ключевые отличия

Drop-in TQFP-144 commercial-temperature sibling (против EP1K50TC144-1)
Industrial temperature grade option in same footprint (против EP1K50TI144-1)
Mature, second-source friendly ACEX 1K family (против Cyclone IV EP4CE6 (modern active part))

Заметки по проектированию

The EP1K50TQ144-1 requires a clean 2.5 V supply for VCCINT (core) and a separate 2.5 V or 3.3 V supply for VCCIO (I/O banks). Estimated: at 250 MHz with all 2,880 LEs toggling at typical 20-30% activity, the core draws roughly 200-400 mA DC; decoupling with 0.1 µF X7R + 10 µF bulk at each VCCINT pin plus a ferrite bead is recommended. Power sequencing should ensure VCCINT ramps before VCCIO, or latch-up may occur on the I/O buffers. Use a TI TPS7A4533 or equivalent LDO for VCCINT and TPS7A3033 for VCCIO.

The TQFP-144 package has 0.5 mm pitch leads on four sides — place a continuous GND ring on the top layer under the device and stitch vias every 5 mm around the perimeter to suppress ground bounce. Estimated: keep all I/O traces shorter than 50 mm to avoid transmission-line effects above 100 MHz; route 3.3 V and 2.5 V signals in separate VCCIO banks with the LVDS pairs length-matched within 2 mm. Connect the exposed pad (if present) to GND for thermal relief.

Do not connect the EP1K50TQ144-1 directly to 5 V logic without a series resistor or level shifter — the absolute-maximum VCCIO is 3.6 V (legacy datasheet section 7) and exceeding it destroys the I/O. Configuration must complete before user I/O becomes active; if the EPC4/EPC8/EPC16 fails to drive CONF_DONE high within the spec time, the device will remain tri-stated and the board will appear 'dead'. Always recheck MSEL0/MSEL1 strap values to match the desired configuration mode (AS, PS, JTAG).

Информация о соответствии

RoHS

Unknown

REACH

Unknown

AEC-Q100

Not Applicable

Без свинца

Unknown

Без галогенов

Unknown

Конфликтные минералы

Unknown

Compliance status for the EP1K50TQ144-1 is process-dependent and not explicitly stated in the legacy ACEX 1K datasheet; lead-free 'N' suffix variants (e.g., EP1K50TC144-1N) are more likely to be RoHS-compliant. AEC-Q100 is not applicable — this is a commercial/industrial FPGA. Conflict-minerals status not declared in retrieved web data.

Данные проверены: 2026-09-07 — данные проверены и курируются командой компонентной инженерии XAIPART

Источники: Distributor, Manufacturer Datasheet, Distributor, Distributor, Manufacturer Product Page

Связанные компоненты & термины

Intel Altera EP1K50TQ144-1 EP1K50TQ144 ACEX 1K FPGA Field Programmable Gate Array Programmable Logic Device PLD CPLD CPLD hierarchy TQFP-144 TQFP TQFP package family LQFP Logic Element Logic Array Block Embedded Array Block EAB dual-port RAM Look-Up Table JTAG IEEE 1149.1 EPC4 EPC8 EPC16 Quartus II multiVolt I/O LVTTL LVCMOS LVDS 0.22 µm process RoHS industrial grade commercial grade