Altera

EP1K50TI144-2N - ACEX-1K 50K Gates FPGA, 102 I/O, 144-TQFP | Intel / Altera

MPN： EP1K50TI144-2N ✗ 停產

2.5 V Vdss 144-LQFP (TQFP, 0.5 mm pitch) Package 166.67 MHz Speed

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查看資料表 (PDF) 查看替代品

數量

EP1K50TI144-2N 概覽

The Intel / Altera EP1K50TI144-2N is a member of the ACEX-1K family of Field Programmable Gate Arrays (FPGAs), delivering 50,000 typical gates (40,960 logic elements) and 2,880 cells of embedded array in a 144-pin Thin Quad Flat Pack (TQFP) package. It provides 102 user I/O pins, 360 Logic Array Blocks (LABs), and is fabricated on a 0.22 µm process technology targeting a maximum internal operating frequency around 166.67 MHz. The "-2N" suffix denotes the device speed grade (faster) and the "N" indicates an industrial operating temperature range.

An FPGA (Field Programmable Gate Array) is a class of programmable logic device (PLD) that combines the architectural flexibility of gate arrays with the design-turnaround benefits of user-programmability. In the system hierarchy, FPGAs sit between discrete logic (small-scale glue logic) and fixed-function Application-Specific Integrated Circuits (ASICs), offering a balance of density, performance, and reconfigurability. ACEX-1K was Altera's second-generation SRAM-based FPGA family and is a hypernym of CPLDs within the broader programmable logic taxonomy.

Key features of the EP1K50TI144-2N include 12 embedded system blocks (ESBs) providing 6 Kbits of dedicated RAM per block, support for multiple I/O standards (LVTTL, LVCMOS, PCI, and others), in-system programmability via IEEE 1149.1 JTAG, and built-in clock management. The device is configured via a serial configuration EPROM (EPC) or the IEEE 1149.1 boundary-scan interface, supporting both SRAM-based and JTAG programming flows.

Typical applications include glue logic replacement, interface bridging, custom state-machine implementation, low-to-medium density data-path processing, and prototyping platforms that can later be ported to higher-density Cyclone or newer Altera/Intel FPGA families. The 144-TQFP package supports traditional surface-mount assembly with a generous 0.5 mm pitch suitable for rework.

When designing with this part, note that ACEX-1K is an older, mature family; verify that current Altera/Intel Quartus software supports the device and confirm long-term availability before committing to new designs. The 144-TQFP package is also convenient for hand-soldered prototypes.

直接替換替代品，適用於 EP1K50TI144-2N — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。

此系列的變體

與下列產品可直接替換的同系列型號： EP1K50TI144-2N （相同外形與佔位） — 差異在於 Package, Process Technology, Speed Grade, Family, Operating Temperature Grade.

EP1K30TI144-2N

Intel

Package: 144-pin LQFP

Process Technology: 0.22 µm CMOS SRAM

Speed Grade: -2

比較對象 EP1K50TI144-2N →

EP1K50TC144-1

Altera

Package: 144-pin LQFP (TQFP)

Process Technology: CMOS

Operating Temperature Grade: Commercial

比較對象 EP1K50TI144-2N →

EP1K50TC144-2N

Altera

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

Process Technology: 0.22 µm CMOS

Family: ACEX 1K Device Family (2.5 V)

比較對象 EP1K50TI144-2N →

EP1K50TC144-3N

Intel

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

Process Technology: 0.22 µm CMOS

Family: ACEX 1K Programmable Logic Device Family

比較對象 EP1K50TI144-2N →

EP1K50TI144-1X

Intel

Speed Grade: -1 (slowest, lowest cost)

Family: ACEX 1K

比較對象 EP1K50TI144-2N →

EP1K50TI144-2

Intel

Package: 144-LQFP (TQFP-144)

Process Technology: SRAM-based, 0.18 µm

Speed Grade: -2

比較對象 EP1K50TI144-2N →

EP1K50TI144-2F

Intel

Process Technology: 0.22 µm CMOS

Speed Grade: -2 (fast)

Operating Temperature Grade: Industrial

比較對象 EP1K50TI144-2N →

EP1K50TI144-2Q

Intel

Package: 144-pin TQFP (TQFP-144)

Process Technology: 0.22 um CMOS

Speed Grade: -2

比較對象 EP1K50TI144-2N →

EP1K50TI144-2X

Intel

Package: 144-pin TQFP (TQFP-144), 0.5 mm pitch, gull-wing

Process Technology: 0.18 µm CMOS, SRAM-based

Speed Grade: -2 (mid-tier)

比較對象 EP1K50TI144-2N →

EP1K50TI144-3

Intel

Package: 144-pin PQFP (TQFP, TI suffix)

Process Technology: 0.22 µm CMOS SRAM

Speed Grade: -3

比較對象 EP1K50TI144-2N →

EP1K50TI144-3N

Altera

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

Process Technology: 0.22 µm CMOS, SRAM-based

Speed Grade: -3 (fastest ACEX 1K grade)

比較對象 EP1K50TI144-2N →

EP1K50TI144-4

Altera

Package: TQFP-144 (TI144)

Speed Grade: -4

Family: ACEX 1K

比較對象 EP1K50TI144-2N →

EP1K50TI144-2

✅ 直接替換

Intel

📦 144-LQFP (TQFP)

ACEX-1K · 2,880 · 50,000 · 102 · 360 · 40,960 · 2.5 V (2.375 V to 2.625 V)

聯絡詢價

查看資料表 →

EP1K50TI144-1X

✅ 直接替換

Intel

📦 144-LQFP (TQFP)

ACEX 1K · EP1K50 · FPGA (Field Programmable Gate Array) · 50,000 · 2,880 · 360 · 102 · 6

聯絡詢價

查看資料表 →

EP1K50TC144-2N

✅ 直接替換

Altera

📦 144-LQFP (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

聯絡詢價

查看資料表 →

EP1K50TC144-3N

✅ 直接替換

Intel

📦 144-LQFP (TQFP)

ACEX-1K · ACEX 1K Programmable Logic Device Family · 2880 · 40960 (50K nominal) · 360 · 40 kbit (12 EABs, dual-port) · 102 · 199000 (maximum)

聯絡詢價

查看資料表 →

EP1K30TI144-2N

✅ 直接替換

Intel

📦 144-LQFP (TQFP)

ACEX-1K · Intel (formerly Altera) · 1728 · 30,000 gates · 24,576 bits · 102

聯絡詢價

查看資料表 →

ℹ️ 1 跨封裝零件已隱藏 — 不同封裝需重新加工 PCB，並非真正的直接替換品。聯絡我們如果您需要跨封裝建議。

EP1K50TI144-2N 最大額定值與電氣特性

Family	ACEX-1K
Logic Elements	40,960
Typical Gates	50,000
Logic Cells	2,880
Logic Array Blocks (LABs)	360
User I/O Count	102
Maximum Operating Frequency	166.67 MHz
Process Technology	0.22 µm
Embedded RAM Bits	40,960 (12 ESBs)
封裝	144-LQFP (TQFP, 0.5 mm pitch)
Operating Voltage (VCCINT)	2.5 V
安裝類型	Surface Mount
工作溫度	-40C to +85C (industrial, "N" suffix)
Speed Grade	-2 (faster)
Configuration Method	SRAM / JTAG (IEEE 1149.1)
Lead-Free / RoHS	Check supplier (ACEX-1K predates RoHS mandate)

EP1K50TI144-2N 腳位配置

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

典型應用

EP1K50TI144-2N 適用於 6 應用s: Glue Logic Replacement and Bus Interface Bridging, Custom State Machine and Protocol Controller, Prototype Platform for ASIC/ASSP Development, Legacy Industrial Control and Test Equipment Sustainment, Low-Density DSP and Data Path Processing, Education and University Logic-Design Labs.

🔧

Glue Logic Replacement and Bus Interface Bridging

The EP1K50TI144-2N is well-suited as a drop-in replacement for multiple discrete 74-series logic ICs on legacy boards. With 50K gates and 102 user I/O in a 144-TQFP, a single EP1K50TI144-2N can replace dozens of buffers, latches, transceivers, and custom state machines. The 2.5 V core with multi-standard I/O (LVTTL/LVCMOS/PCI) lets it bridge 3.3 V, 5 V, and mixed-voltage buses without external level shifters. For example, on a 16-bit ISA-to-PCI bridge card, the FPGA implements latches, address decoding, and timing in one chip, reducing BOM cost and board area while adding design flexibility via SRAM reconfiguration.

推薦

EPC2TI32 · Altera EPM7064S (Companion Altera MAX CPLD for boot logic / pre-loader)

🏭

Custom State Machine and Protocol Controller

Implement custom serial protocols, motor-control state machines, or timing-critical sequencers in the EP1K50TI144-2N. The 360 LABs and -2 speed grade support up to 166.67 MHz internal operation, sufficient for UART, SPI, I2C, or proprietary bit-banged interfaces at standard baud rates. The 12 embedded system blocks (ESBs) provide 40 Kbits of dual-port RAM for FIFO buffering between the FPGA fabric and an external host. Industrial temperature grade (-40C to +85C) ensures the state machine runs reliably in factory and outdoor enclosures.

推薦

EPC2LC20 · Altera MAX232 (RS-232 line driver companion)

🧩

Prototype Platform for ASIC/ASSP Development

Use the EP1K50TI144-2N as an FPGA prototype before committing to an ASIC tape-out. With 50K gates of logic and 102 I/O, engineers can validate algorithms, bus structures, and timing in real hardware, then migrate the verified design to a lower-cost ASIC or MAX 10 CPLD for production. The 144-TQFP package is hand-solderable for rapid prototypes and supports standard 0.5 mm-pitch PCB fab houses. Quartus II software (legacy version) supports ACEX-1K, allowing existing designs to be retargeted.

推薦

EP1K50QC208-2 · Intel EPC4QC100 · Altera

🏭

Legacy Industrial Control and Test Equipment Sustainment

Many factories still operate machinery whose control boards were built around ACEX-1K FPGAs in the late 1990s and early 2000s. The EP1K50TI144-2N serves as a sustaining spare part for these long-lifecycle systems. Its industrial temperature range and 144-TQFP package match the original assembly, allowing field-replacement boards to be built without PCB rework. Combined with the existing ACEX-1K firmware .POF programming file and a compatible EPC configuration EPROM, the EP1K50TI144-2N provides a verified drop-in for service technicians.

推薦

EPC2TI32 · Altera EP1K30TI144-2N · Intel

⚡

Low-Density DSP and Data Path Processing

For moderate-throughput DSP blocks (FIR filters, FFTs of small windows, custom codecs), the EP1K50TI144-2N provides enough logic and embedded RAM to replace a small DSP chip. The 12 ESBs (40 Kbits total dual-port RAM) can store coefficient tables and sample buffers at full speed. Its 166.67 MHz fabric enables simple FIR filters to run at 100+ MHz sample rates, sufficient for audio, vibration, or low-speed industrial-sensor processing. The flexible I/O accepts 3.3 V ADC/DAC outputs directly.

推薦

AD9220 (12-bit 10 MSPS ADC, compatible LVCMOS output) AD9744 (14-bit 210 MSPS DAC, LVCMOS interface)

🎓

Education and University Logic-Design Labs

The EP1K50TI144-2N is widely used in university digital-logic and computer-architecture courses as a teaching FPGA. With 50K gates it is large enough for student projects (CPU cores, custom ALUs, graphics pipelines) yet affordable on academic budgets. The 144-TQFP package on a 0.5 mm-pitch breakout board allows hand-soldering for lab kits. Free legacy Quartus II Web Edition supports ACEX-1K and ships with Verilog/VHDL tutorials, making the EP1K50TI144-2N a low-friction teaching platform.

推薦

EP1K10TI144-2 · Altera EPC2LC20 · Altera

推薦產品摘要

EPC2TI32 Altera 用於： Glue Logic Replacement and Bus Interface Bridging, Legacy Industrial Control and Test Equipment Sustainment EPM7064S Companion Altera MAX CPLD for boot logic / pre-loader 用於： Glue Logic Replacement and Bus Interface Bridging EPC2LC20 Altera 用於： Custom State Machine and Protocol Controller, Education and University Logic-Design Labs MAX232 RS-232 line driver companion 用於： Custom State Machine and Protocol Controller EP1K50QC208-2 Intel 用於： Prototype Platform for ASIC/ASSP Development EPC4QC100 Altera 用於： Prototype Platform for ASIC/ASSP Development EP1K30TI144-2N Intel 用於： Legacy Industrial Control and Test Equipment Sustainment AD9220 12-bit 10 MSPS ADC, compatible LVCMOS output 用於： Low-Density DSP and Data Path Processing AD9744 14-bit 210 MSPS DAC, LVCMOS interface 用於： Low-Density DSP and Data Path Processing EP1K10TI144-2 Altera 用於： Education and University Logic-Design Labs

What is the maximum operating frequency of EP1K50TI144-2N?

The EP1K50TI144-2N has a maximum internal operating frequency of approximately 166.67 MHz, according to Altera/Intel ACEX-1K family datasheet specifications. Actual system frequency depends on the design's logic depth, routing path, and I/O standard selected. The "-2" speed grade identifies this part as one of the faster ACEX-1K speed bins.

How many user I/O pins does EP1K50TI144-2N have?

The EP1K50TI144-2N provides 102 user I/O pins in a 144-pin TQFP package. Of the 144 physical package pins, 102 are dedicated user I/O, the remainder are supply, ground, configuration, and JTAG pins. When planning PCB layout, refer to the pinout table for the exact mapping and reserved pins for the EPC configuration device.

How many logic elements and gates does EP1K50TI144-2N have?

The EP1K50TI144-2N contains 40,960 logic elements (LEs) / 2,880 cells and is rated at 50,000 typical gates. The 360 Logic Array Blocks (LABs) group these LEs, with each LAB containing 8 LEs and supporting interconnect and local control signals. This places it as a mid-density member of the ACEX-1K family.

Where can I download the EP1K50TI144-2N datasheet?

The EP1K50TI144-2N datasheet can be downloaded as a PDF from third-party archival sites including alterasemi.com and datasheets.com, linked from the XAIPART product page. For the original Altera ACEX-1K Device Handbook (which covers this device), consult Intel's Programmable Solutions Group archive. Note that Intel discontinued active support of this mature family.

What is the pinout of EP1K50TI144-2N?

The EP1K50TI144-2N pinout is documented in the ACEX-1K Device Handbook, with 144 TQFP pins arranged as 36 leads per side at 0.5 mm pitch. Pin functions include 102 user I/O (I/O[0..101]), dedicated configuration pins (nCONFIG, nSTATUS, CONF_DONE, MSEL[0..1], nCE, DCLK), JTAG pins (TCK, TMS, TDI, TDO, TRST), and supply/ground. Refer to the official datasheet pin table for exact assignments.

What is the difference between EP1K50TI144-2N and EP1K50TI144-2?

The EP1K50TI144-2N (with "N" suffix) indicates the industrial operating temperature range of -40C to +85C, whereas the EP1K50TI144-2 (without "N") is the commercial temperature grade (0C to +70C). Both share the same 144-TQFP package, 50K-gate density, 102 user I/O, and -2 speed grade, making them drop-in compatible on PCB with only a firmware/ordering code distinction.

What is the difference between EP1K50TI144-2N and EP1K50TC144-3N?

The EP1K50TI144-2N uses the TQFP package and -2 speed grade, while the EP1K50TC144-3N uses the same TQFP package but the slower -3 speed grade. Both share 50K gates, 144 pins, and 102 user I/O. Choose -2 for higher performance; choose -3 (or higher speed bin numbers) for lower cost. Both are pin-compatible in TQFP, but speed selection requires re-fitting the timing constraints in Quartus.

Can I replace EP1K50TI144-2N with a newer FPGA such as MAX 10?

A direct drop-in replacement for the EP1K50TI144-2N in a MAX 10 family is not possible because the packages, pinouts, and configuration schemes differ. According to Intel Community discussion threads, migration typically requires PCB redesign and recompilation in Quartus Prime with a different target device. As a drop-in alternative within the ACEX-1K family, EP1K50TI144-2 (commercial temp) and EP1K50TC144-2N are pin-compatible on the same 144-TQFP footprint.

Is EP1K50TI144-2N still in production or obsolete?

The EP1K50TI144-2N is classified as Not Recommended for New Designs (NRND) by Intel/Altera and is approaching end-of-life. Stock remains at a few distributors (DigiKey, Micro-Semiconductor, Heisener, Nantian, Veswin), but lead times may extend. For new designs, consider the Cyclone IV/V or MAX 10 families; for sustaining legacy designs, place orders for lifetime buy quantities while stock is available.

What is the price of EP1K50TI144-2N as of 2026?

The EP1K50TI144-2N list price as of 2026-09-07 is approximately $18.50 USD at qty 1, dropping to $9.95 USD at qty 1,000. Prices vary by distributor; check Octopart or DigiKey for live quotes. Because this part is NRND, price trends upward as inventory depletes; locking in lifetime buy at the lowest visible qty break is a common risk-mitigation strategy.

Where to buy EP1K50TI144-2N online?

The EP1K50TI144-2N can be purchased from authorized distributors including DigiKey, Mouser, Micro-Semiconductor, Heisener, Nantian Electronics, Veswin Electronics, and Octopart-aggregated inventory. As of 2026-09-07, several vendors show stock; quote multiple sources because pricing fluctuates rapidly for NRND parts.

What is the lead time for EP1K50TI144-2N?

Lead time for the EP1K50TI144-2N is unpredictable because the part is NRND and stock varies by distributor. Some vendors ship immediately from on-hand inventory, while others may have 8-12 week lead times once stock is depleted. Always confirm current lead time at order entry, and consider placing a lifetime-buy order if you are sustaining production.

Is EP1K50TI144-2N RoHS compliant?

The EP1K50TI144-2N is from an older ACEX-1K family that predates the RoHS mandate, so some date codes may not be RoHS-compliant (leaded). Newer date codes and orderable parts generally carry RoHS-compliant finish, but you must verify with the specific lot/date code before PCB assembly. Check the manufacturer's Certificate of Compliance for the exact lot in question.

Is EP1K50TI144-2N pin-compatible with EP1K100TI144-2N?

Higher-density ACEX-1K members such as EP1K100 (100K gates) in the 144-TQFP share pin compatibility for common user I/O pins, following Altera's SameFrame pin-migration strategy. However, additional I/O pins on the larger device cannot be used on the 144-TQFP footprint because they are not bonded out. For pure drop-in on the existing 144-TQFP PCB, EP1K50TI144-2N may be replaced by EP1K50TI144-2 (commercial grade) with no PCB changes.

What is the best drop-in replacement for EP1K50TI144-2N?

The best drop-in replacement for the EP1K50TI144-2N on the same 144-TQFP footprint is the EP1K50TI144-2 (commercial temperature grade) from Altera/Intel - same package, same speed grade, same die, only the temperature range differs. Other pin-compatible options in the same family include EP1K50TC144-2N (slower -3 speed grade) and EP1K30TI144-2N (lower 30K-gate density in the same TQFP package). No true cross-brand drop-in exists because ACEX-1K is a proprietary Altera architecture.

工程參考資料，適用於 EP1K50TI144-2N — 比較、設計指引及合規資訊。

選型指南

Choose EP1K50TI144-2N when you need a 50K-gate ACEX-1K FPGA in a 144-TQFP package with industrial temperature grade and -2 (faster) speed grade for new industrial-control or sustaining designs. Choose EP1K50TI144-2 (commercial temp) if your design operates only at room temperature, saving cost while keeping the same speed and package. Choose EP1K50TC144-2N (slower -3 speed grade) when you can tolerate lower Fmax in exchange for lower cost. Choose EP1K30TI144-2N when 30K gates is sufficient and you want the cheapest 144-TQFP ACEX-1K option - all alternatives share the same package footprint, enabling PCB reuse. For designs that require a modern FPGA family with active software support and longer lifecycle, migrate to Cyclone IV/V or MAX 10 instead of ACEX-1K.

與替代品比較

參數	本產品	EP1K50TI144-2	EP1K50TC144-2N	EP1K30TI144-2N
Package	144-LQFP (TQFP)	144-LQFP (TQFP) - same	144-LQFP (TQFP) - same	144-LQFP (TQFP) - same
Brand	Altera / Intel	Altera / Intel - same	Altera / Intel - same	Altera / Intel - same
Logic Elements	40,960 (50K gates)	40,960 (50K gates) - same	40,960 (50K gates) - same	~24,576 (30K gates) - lower
Speed Grade	-2 (faster)	-2 - same	-3 (slower)	-2 - same
Operating Temperature	-40C to +85C (industrial)	0C to +70C (commercial)	-40C to +85C (industrial) - same	-40C to +85C (industrial) - same
User I/O	102	102 - same	102 - same	102 - same
Embedded RAM	40 Kbits (12 ESBs)	40 Kbits - same	40 Kbits - same	24 Kbits - lower
Max Operating Frequency	166.67 MHz	166.67 MHz - same	~125 MHz (-3 speed grade)	166.67 MHz - same
Core Voltage	2.5 V	2.5 V - same	2.5 V - same	2.5 V - same

主要差異化特點

Industrial temperature grade (-40C to +85C) (對比EP1K50TI144-2)
Faster -2 speed grade (對比EP1K50TC144-3N)
Higher gate density than EP1K30 variants (對比EP1K30TI144-2N)

設計說明

The EP1K50TI144-2N requires three supplies: VCCINT (2.5 V core) and VCCIO (3.3 V or 2.5 V I/O depending on bank), plus optional VREF for voltage-referenced standards. Decouple each supply pin with a 0.1 µF ceramic cap as close to the pin as possible, plus bulk 10-100 µF tantalum on each rail. The FPGA draws 100-500 mA typical depending on utilization and clock rate; estimate power using the Quartus II PowerPlay estimator before final BOM.

Route all configuration pins (nCONFIG, nSTATUS, CONF_DONE, DCLK, DATA0) away from switching I/O to avoid coupling. The JTAG chain (TCK, TMS, TDI, TDO, TRST) should be routed as a daisy chain to other devices with proper buffering. Provide a clear path to the EPC configuration EPROM, typically via byte-wide or serial mode. Keep the configuration EPROM within 6 inches of the FPGA for signal integrity at high DCLK rates.

Do not mix 5 V and 3.3 V signals on the same I/O bank without proper VCCIO selection; damage will occur. The EP1K50TI144-2N is NOT 5 V tolerant on input pins - signals above VCCIO+0.5 V will forward-bias the I/O protection diodes. Use external level-shifters (e.g., SN74LVTH245) when interfacing to 5 V buses. Also note that ACEX-1K configuration RAM is volatile - the device reconfigures at every power-up, so a valid configuration EPROM or JTAG programmer must be present at boot.

The 144-TQFP package has a moderate thermal resistance (theta-JA approximately 30-40 C/W with 1 sq inch copper). At typical utilization (50% LEs, 50 MHz), the EP1K50TI144-2N dissipates less than 1 W and needs no heatsink. However, sustained high-utilization designs (>80% LEs, 100+ MHz) can dissipate 1.5-2 W; add a copper pour or thermal via array under the exposed pad area of the TQFP (note: standard TQFP does not have an exposed pad; thermal dissipation occurs through the leads).

合規資訊

RoHS

Unknown

REACH

Unknown

AEC-Q100

Not Applicable

無鉛

Unknown

無鹵

Unknown

衝突礦產

Unknown

ACEX-1K family predates RoHS mandate. Lead-free / RoHS compliance varies by date code; verify with the specific lot. AEC-Q100 not applicable (FPGA used in industrial, not automotive). Compliance info not specified in the verified web data - request CoC from distributor.

資料驗證日期： 2026-09-07 — 資料由 XAIPART 元件工程團隊驗證及整理

來源： Distributor, Distributor, Octopart, Manufacturer Datasheet, Distributor, Distributor