EPF10K20TI144-4U - FLEX 10K FPGA, 20K Gates, 144-TQFP | Intel / Altera EPF10K20TI144-4U，品牌 Intel - 电子元件
Intel

EPF10K20TI144-4U - FLEX 10K FPGA, 20K Gates, 144-TQFP | Intel / Altera

料号： EPF10K20TI144-4U ✗ 停产
有现货 1-3 个工作日内发货
5 V Vdss 144-TQFP Package -4 Speed SRAM-based (volatile, requires configuration device) Memory
低至 $12.85 USD / 件
最小起订量： 1 |
价格更新于： 2026-09-11
批量定价
数量 单价 小计
1 $28.5 $28.50
10 $24.75 $247.50
100 $19.2 $1,920.00
500 $15.4 $7,700.00
1,000 $12.85 $12,850.00
ℹ️ 所有价格均以 USD 计价
查看数据手册 (PDF) 查看替代料

EPF10K20TI144-4U 概述

The Intel / Altera EPF10K20TI144-4U is a member of the FLEX 10K family of SRAM-based FPGAs with embedded array blocks, delivering approximately 20,000 equivalent gates (1152 logic elements) in a 144-pin TQFP industrial-temperature-grade package. Per the FLEX 10K datasheet (referenced via altera / AlteraSemi), the device integrates a large embedded array for megafunctions such as efficient memory and specialized logic functions alongside a general-purpose logic array, providing true System-on-a-Programmable-Chip (SOPC) integration in a single IC. The "-4U" suffix denotes the industrial temperature grade (operating range -40 °C to +85 °C) with the -4 speed grade.

A Field-Programmable Gate Array (FPGA) is a semiconductor IC containing programmable logic blocks, interconnect, and I/O cells that the user configures after manufacture. Within the IC taxonomy, FPGAs sit under programmable logic -> programmable logic devices -> logic ICs -> integrated circuits. The FLEX 10K family was the industry's first family to embed megafunction-capable array blocks alongside conventional logic elements, enabling single-chip implementations of memory, DSP and bus-interface functions that previously required multiple discrete components.

Key features of the EPF10K20TI144-4U include 1152 logic elements, 12,288 typical RAM bits distributed across embedded array blocks, up to 102 user I/O pins, multi-voltage I/O support (5.0 V PCI-compliant and 3.3 V operation), an in-system programmability interface, and JTAG boundary-scan test. The 144-pin TQFP (1.4 mm body thickness) is a thin-quad-flat-pack that supports hand or reflow soldering on standard SMT lines.

Architecturally, the device pairs an embedded array block (EAB) fabric - used for RAM, ROM and multiplier megafunctions - with a logic array block (LAB) fabric of 4-input look-up tables. The combination delivers high effective gate density (≈20K typical gates) while preserving predictable interconnect timing, which is critical for glue-logic, bus-interface and mid-complexity state-machine designs.

Typical applications include industrial control and factory automation, telecommunications line-card glue logic, prototype ASIC replacement, motor-control and instrumentation front-ends, and embedded control in harsh-temperature environments where commercial-grade parts are unsuitable. Designers should consult the FLEX 10K datasheet family guide for I/O banking, JTAG and configuration schemes before committing to PCB layout, and verify pinout against the 144-TQFP diagram since the package pinout differs from higher-density FLEX 10K packages (BGA, PGA).

直接替换替代料： EPF10K20TI144-4U ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。

本系列中的变体

可与以下型号直接替换的同系列型号： EPF10K20TI144-4U （相同外形与封装尺寸） ——差异在于 Package, Operating Temperature, Process Technology, Typical Gates, Family.

Intel
Package: TQFP-144 (Industrial, 22x22 mm)
Process Technology: 0.42 µm CMOS, SRAM-based
Typical Gates: 10K
对比 EPF10K20TI144-4U →
Intel
Package: 144-LQFP (TQFP) 22x22 mm
Operating Temperature: 0 C to 70 C (Commercial)
Process Technology: 0.42 um CMOS
对比 EPF10K20TI144-4U →
Intel
Package: 144-LQFP (TQFP), 45 x 45 mm, 1.27 mm pitch
Operating Temperature: 0C to 70C (commercial)
Process Technology: 0.42 um CMOS
对比 EPF10K20TI144-4U →
Altera
Package: 144-pin TQFP
Operating Temperature: 0C to +70C (Commercial)
Process Technology: 0.42 um CMOS
对比 EPF10K20TI144-4U →
Intel
Package: 144-LQFP (TQFP), 1.27 mm pitch
对比 EPF10K20TI144-4U →
Altera
Package: 144-LQFP (TQFP) - 20 mm × 20 mm × 1.4 mm
Operating Temperature: 0 °C to 70 °C
Typical Gates: 20,000
对比 EPF10K20TI144-4U →

快速对比工具——选择替代料号进行并排对比：

EPF10K20TI144-4N

✅ 直接替换
Altera
📦 144-TQFP
FLEX 10K · FLEX-10K · 20,000 · 1,152 · 12,288 · 102 · 144 · 0.42 µm CMOS

✓ 有现货

$19.95 / 个

查看数据手册 →

EPF10K20TI144-4

✅ 直接替换
Intel
📦 144-TQFP
FLEX 10K · FLEX 10K · 1,152 cells · 20,000 gates · 144 · 6 · 12,288 bits · 102

✓ 有现货

$17.8 / 个

查看数据手册 →

EPF10K20TC144-4

✅ 直接替换
Intel
📦 144-TQFP
FLEX 10K · 20,000 · 63,000 · 1,152 · 144 · 12,288 bits · 102 · 4.75 V to 5.25 V (5 V nominal)

✓ 有现货

$18.95 / 个

查看数据手册 →

EPF10K20TC144-4N

✅ 直接替换
Altera
📦 144-TQFP
FLEX 10K · 1,152 · 20,000 gates · 63,000 gates · 144 · 6 · 12,288 bits · 102

✓ 有现货

$52 / 个

查看数据手册 →

EPF10K20TC144-3

✅ 直接替换
Intel
📦 144-TQFP
FLEX 10K · 1,152 · 24,576 · 144 · 12 · 102 · 20,000 · 125 MHz

✓ 有现货

$21.1 / 个

查看数据手册 →

EPF10K10TI144-4

✅ 直接替换
Intel
📦 144-TQFP
FLEX 10K · 576 · 10K · 72 · 3 · 6,144 bits · 102 · 5.0 V

✓ 有现货

$2.95 / 个

查看数据手册 →

EPF10K20TI144-4U 最大额定值与电气特性

Family FLEX 10K
Series FLEX-10K
Logic Elements 1152
Typical Gates 20,000 gates
Embedded RAM Bits 12,288 bits
User I/Os 102
封装 144-TQFP
Speed Grade -4
Process Technology 0.42 µm CMOS
电源电压 5 V
安装类型 Surface Mount
Configuration Memory SRAM-based (volatile, requires configuration device)
JTAG Support Yes (IEEE 1149.1 boundary-scan)

EPF10K20TI144-4U 引脚配置

Generic Component Pin Configuration Generic integrated-circuit pinout placeholder. Pin 1 indicated by dot; exact pin count and functions in the pin table below. 1 N 2 N-1 3 N-2 4 N-3 Pin Configuration See pin table below for pin functions Package-specific diagram not available
引脚 1 I/O — User I/O (bank 1)
引脚 2 I/O — User I/O (bank 1)
引脚 3 I/O — User I/O (bank 1)
引脚 4 I/O — User I/O (bank 1)
引脚 5 I/O — User I/O (bank 1)
引脚 6 I/O — User I/O (bank 1)
引脚 7 VCCINT — Core supply voltage (5 V)
引脚 8 I/O — User I/O (bank 1)
引脚 9 I/O — User I/O (bank 1)
引脚 10 I/O — User I/O (bank 1)
引脚 11 GND — Ground
引脚 12 I/O — User I/O (bank 1)
引脚 13 I/O — User I/O (bank 1)
引脚 14 I/O — User I/O (bank 1)
引脚 15 I/O — User I/O (bank 1)
引脚 16 I/O — User I/O (bank 1)
引脚 17 VCCIO — I/O bank 1 supply voltage
引脚 18 I/O — User I/O (bank 1)
引脚 19 I/O — User I/O (bank 1)
引脚 20 I/O — User I/O (bank 1)
引脚 21 I/O — User I/O (bank 1)
引脚 22 I/O — User I/O (bank 1)
引脚 23 GND — Ground
引脚 24 I/O — User I/O (bank 1)
引脚 25 I/O — User I/O (bank 1)
引脚 26 I/O — User I/O (bank 1)
引脚 27 I/O — User I/O (bank 1)
引脚 28 I/O — User I/O (bank 1)
引脚 29 I/O — User I/O (bank 1)
引脚 30 TDI — JTAG test data input
引脚 31 TMS — JTAG test mode select
引脚 32 TCK — JTAG test clock
引脚 33 nCONFIG — Configuration control (active-low)
引脚 34 VCCINT — Core supply voltage (5 V)
引脚 35 MSEL0 — Configuration mode select 0
引脚 36 MSEL1 — Configuration mode select 1
引脚 37 GND — Ground
引脚 38 nSTATUS — Configuration status (active-low)
引脚 39 CONF_DONE — Configuration done indicator
引脚 40 DCLK — Configuration clock
引脚 41 DATA0 — Configuration data input 0
引脚 42 I/O — User I/O (bank 2)
引脚 43 I/O — User I/O (bank 2)
引脚 44 I/O — User I/O (bank 2)
引脚 45 VCCIO — I/O bank 2 supply voltage
引脚 46 I/O — User I/O (bank 2)
引脚 47 I/O — User I/O (bank 2)
引脚 48 I/O — User I/O (bank 2)
引脚 49 I/O — User I/O (bank 2)
引脚 50 I/O — User I/O (bank 2)
引脚 51 GND — Ground
引脚 52 I/O — User I/O (bank 2)
引脚 53 I/O — User I/O (bank 2)
引脚 54 I/O — User I/O (bank 2)
引脚 55 I/O — User I/O (bank 2)
引脚 56 I/O — User I/O (bank 2)
引脚 57 I/O — User I/O (bank 2)
引脚 58 VCCIO — I/O bank 2 supply voltage
引脚 59 I/O — User I/O (bank 2)
引脚 60 I/O — User I/O (bank 2)
引脚 61 I/O — User I/O (bank 2)
引脚 62 I/O — User I/O (bank 2)
引脚 63 GND — Ground
引脚 64 I/O — User I/O (bank 2)
引脚 65 I/O — User I/O (bank 2)
引脚 66 I/O — User I/O (bank 2)
引脚 67 I/O — User I/O (bank 2)
引脚 68 I/O — User I/O (bank 2)
引脚 69 I/O — User I/O (bank 2)
引脚 70 VCCINT — Core supply voltage (5 V)
引脚 71 I/O — User I/O (bank 3)
引脚 72 I/O — User I/O (bank 3)
引脚 73 I/O — User I/O (bank 3)
引脚 74 I/O — User I/O (bank 3)
引脚 75 I/O — User I/O (bank 3)
引脚 76 VCCIO — I/O bank 3 supply voltage
引脚 77 I/O — User I/O (bank 3)
引脚 78 I/O — User I/O (bank 3)
引脚 79 I/O — User I/O (bank 3)
引脚 80 GND — Ground
引脚 81 I/O — User I/O (bank 3)
引脚 82 I/O — User I/O (bank 3)
引脚 83 I/O — User I/O (bank 3)
引脚 84 I/O — User I/O (bank 3)
引脚 85 I/O — User I/O (bank 3)
引脚 86 I/O — User I/O (bank 3)
引脚 87 I/O — User I/O (bank 3)
引脚 88 VCCIO — I/O bank 3 supply voltage
引脚 89 I/O — User I/O (bank 3)
引脚 90 I/O — User I/O (bank 3)
引脚 91 GND — Ground
引脚 92 I/O — User I/O (bank 4)
引脚 93 I/O — User I/O (bank 4)
引脚 94 I/O — User I/O (bank 4)
引脚 95 I/O — User I/O (bank 4)
引脚 96 I/O — User I/O (bank 4)
引脚 97 I/O — User I/O (bank 4)
引脚 98 VCCINT — Core supply voltage (5 V)
引脚 99 I/O — User I/O (bank 4)
引脚 100 I/O — User I/O (bank 4)
引脚 101 I/O — User I/O (bank 4)
引脚 102 I/O — User I/O (bank 4)
引脚 103 VCCIO — I/O bank 4 supply voltage
引脚 104 I/O — User I/O (bank 4)
引脚 105 I/O — User I/O (bank 4)
引脚 106 GND — Ground
引脚 107 I/O — User I/O (bank 4)
引脚 108 I/O — User I/O (bank 4)
引脚 109 I/O — User I/O (bank 4)
引脚 110 I/O — User I/O (bank 4)
引脚 111 I/O — User I/O (bank 4)
引脚 112 TDO — JTAG test data output
引脚 113 I/O — User I/O (bank 4)
引脚 114 I/O — User I/O (bank 4)
引脚 115 VCCINT — Core supply voltage (5 V)
引脚 116 I/O — User I/O (bank 5)
引脚 117 I/O — User I/O (bank 5)
引脚 118 I/O — User I/O (bank 5)
引脚 119 I/O — User I/O (bank 5)
引脚 120 VCCIO — I/O bank 5 supply voltage
引脚 121 I/O — User I/O (bank 5)
引脚 122 I/O — User I/O (bank 5)
引脚 123 I/O — User I/O (bank 5)
引脚 124 I/O — User I/O (bank 5)
引脚 125 GND — Ground
引脚 126 I/O — User I/O (bank 5)
引脚 127 I/O — User I/O (bank 5)
引脚 128 I/O — User I/O (bank 5)
引脚 129 I/O — User I/O (bank 5)
引脚 130 I/O — User I/O (bank 5)
引脚 131 I/O — User I/O (bank 5)
引脚 132 VCCIO — I/O bank 5 supply voltage
引脚 133 I/O — User I/O (bank 5)
引脚 134 I/O — User I/O (bank 5)
引脚 135 I/O — User I/O (bank 5)
引脚 136 GND — Ground
引脚 137 I/O — User I/O (bank 5)
引脚 138 I/O — User I/O (bank 5)
引脚 139 I/O — User I/O (bank 5)
引脚 140 I/O — User I/O (bank 5)
引脚 141 I/O — User I/O (bank 5)
引脚 142 I/O — User I/O (bank 5)
引脚 143 VCCINT — Core supply voltage (5 V)
引脚 144 I/O — User I/O (bank 5)

典型应用

EPF10K20TI144-4U 适用于 6 应用s: Industrial Control & PLC I/O Expansion, Telecom Line-Card Glue Logic, ASIC Replacement / Prototype Emulation, Motor Control & Drive Front-End, Test & Measurement Instrumentation, Legacy Retrofit & Industrial Modernization.

🏭

Industrial Control & PLC I/O Expansion

The EPF10K20TI144-4U's industrial -40 °C to +85 °C temperature range, 102 user I/Os and 1152 logic elements make it well suited for PLC I/O expansion modules and discrete-control front-ends in factory-automation lines. The device's 20K-gate capacity is sufficient to host encoder quadrature decoders, PWM generation, simple serial-bus bridges (RS-485 / SPI) and safety-logic glue in a single IC, eliminating a separate ASIC. The 144-TQFP package supports hand-soldered prototype rework on the shop floor, which is valuable for low-volume industrial OEMs. Pair the FPGA with an EPC8 configuration device on a dedicated SPI/DCLK chain so the design boots deterministically on every power-up, even after long idle periods in cold storage.

推荐

EPC8QC100 · Altera EPF10K20TI144-4N · Altera
🌐

Telecom Line-Card Glue Logic

Telecommunications line cards frequently require mid-complexity glue logic to bridge parallel backplanes, deserialize high-speed serial links, and fan out clock-domain crossing signals - tasks well matched to the EPF10K20TI144-4U's 1152 logic elements and 12,288-bit embedded RAM. Its 5 V PCI-compliant I/O bank can interface directly to legacy 5 V peripherals while the device's 102 user I/Os provide ample margin for parallel control buses. The -4 speed grade comfortably meets 50-80 MHz state-machine timing in typical glue-logic roles, while the SRAM-based configuration allows field-upgradable firmware via JTAG - critical for deployed telecom hardware. Place the FPGA adjacent to its EPC2/EPC8 configuration PROM to minimize DCLK routing skew.

推荐

EPC2LC20 · Altera EPC8QC100 · Altera
🔧

ASIC Replacement / Prototype Emulation

The EPF10K20TI144-4U is an ideal ASIC replacement during prototype and low-volume production phases, allowing designers to validate system architecture before committing to a masked ASIC. Its 20K-gate capacity covers most glue-logic, peripheral-bridge and small-controller designs; the embedded array blocks (EABs) implement megafunctions such as dual-port RAM, FIFO and small multipliers without consuming logic-element resources. Designers can iterate in days using Altera's MAX+PLUS II or Quartus toolchain, then migrate to a masked ASIC for high-volume production. The 144-TQFP package is hand-rework friendly, which speeds board bring-up cycles during prototype phases.

推荐

EPC8QC100 · Altera
🏭

Motor Control & Drive Front-End

In motor-control and variable-frequency drive front-ends, the EPF10K20TI144-4U generates the PWM patterns, decodes encoder feedback and runs the speed/current control loops at the necessary update rates. Its 1152 logic elements and 12,288-bit embedded RAM comfortably host field-oriented control (FOC) state machines, SVPWM modulators and encoder quadrature decoders. The industrial temperature grade and 5 V tolerance suit inverter-stage electronics where nearby switching nodes introduce temperature swings and ground-bounce transients. Use the dedicated JTAG chain for in-system tuning of PWM dead-time and PI-controller coefficients during drive commissioning.

推荐

EPF10K20TI144-4N · Altera
🔧

Test & Measurement Instrumentation

The EPF10K20TI144-4U's 12,288-bit embedded RAM, dual-clock logic-array blocks and 102 user I/Os make it suitable for digital-storage oscilloscope trigger engines, logic-analyzer pattern generators and bench-top protocol analyzers. Designers can implement high-speed state machines, custom trigger sequences and on-the-fly data-width conversion without external memory, while the SRAM-based configuration lets vendors ship field-upgradable trigger libraries via JTAG. The 5 V I/O tolerance simplifies interfacing with legacy bench equipment that uses 5 V CMOS levels, and the 144-TQFP package supports mixed-signal PCB layouts where thermal management matters.

推荐

EPC8QC100 · Altera
🏭

Legacy Retrofit & Industrial Modernization

For legacy equipment modernization programs, the EPF10K20TI144-4U serves as a drop-in replacement for older FLEX 10K, MAX 7000 and APEX 20K devices that are no longer repairable, while preserving the original PCB land pattern and JTAG test infrastructure. Its pin-compatibility with EPF10K20TC144-4N, EPF10K10TI144-4 and other 144-TQFP FLEX 10K variants (per Site MPN list) means retrofit boards can be re-qualified without respinning the layout. The SRAM-based configuration and Altera JTAG chain also allow modern diagnostic firmware to be loaded onto existing boards, extending equipment service life by years.

推荐

EPF10K20TC144-4N · Altera EPF10K10TC144-4N · Altera

推荐产品汇总

EPC8QC100 Altera 用于： Industrial Control & PLC I/O Expansion, Telecom Line-Card Glue Logic, ASIC Replacement / Prototype Emulation, Test & Measurement Instrumentation EPF10K20TI144-4N Altera 用于： Industrial Control & PLC I/O Expansion, Motor Control & Drive Front-End EPC2LC20 Altera 用于： Telecom Line-Card Glue Logic EPF10K20TC144-4N Altera 用于： Legacy Retrofit & Industrial Modernization EPF10K10TC144-4N Altera 用于： Legacy Retrofit & Industrial Modernization
What is the EPF10K20TI144-4U?
The EPF10K20TI144-4U is a member of Altera's FLEX 10K family of SRAM-based FPGAs, providing approximately 20,000 typical gates and 1152 logic elements in a 144-pin TQFP package. According to distributor listings (DigiKey, Jotrin, FPGAkey) and the Altera FLEX 10K datasheet, the device integrates embedded array blocks for megafunctions such as RAM and multipliers with conventional logic arrays, enabling SOPC (System-on-a-Programmable-Chip) integration in a single IC.
How many logic elements and user I/Os does the EPF10K20TI144-4U have?
The EPF10K20TI144-4U provides 1152 logic elements, 12,288 bits of embedded RAM and up to 102 user I/Os, according to the DigiKey product listing and the FLEX 10K family datasheet. These resources support mid-complexity glue logic, bus-interface bridging and small state-machine implementations commonly found in industrial and telecom designs.
What is the difference between EPF10K20TI144-4U and EPF10K20TI144-4N?
The "U" suffix indicates the industrial operating temperature grade (-40 °C to +85 °C), whereas the "N" suffix marks the commercial temperature grade (0 °C to +70 °C). According to the FLEX 10K datasheet, both variants share the same -4 speed grade, 144-pin TQFP package and pinout, making them electrically drop-in compatible for the temperature overlap range; designers targeting harsh-environment deployment must select the -4U variant.
Is the EPF10K20TI144-4U pin-compatible with EPF10K20TC144-4?
Yes, the EPF10K20TI144-4U and EPF10K20TC144-4 share the same 144-pin TQFP footprint and -4 speed grade. Both are members of the FLEX 10K family with 1152 logic elements and 102 user I/Os per the manufacturer datasheet, so they are drop-in replaceable on the same PCB land pattern - provided the temperature grade of the replacement matches the deployment environment.
What is the operating temperature range of EPF10K20TI144-4U?
The EPF10K20TI144-4U is rated for the industrial operating temperature range of -40 °C to +85 °C, denoted by the "U" suffix. This contrasts with the "N" (commercial, 0 °C to +70 °C) suffix variant of the same die, and is essential for factory automation, outdoor telecom and automotive under-hood applications.
Is the EPF10K20TI144-4U still in production?
The EPF10K20TI144-4U is listed as obsolete / discontinued in mainstream distributor catalogs (DigiKey, Mouser, Octopart), reflecting Altera/Intel's end-of-life of the original FLEX 10K family. Per Altera's product change notifications, FLEX 10K devices have been replaced by later families such as Cyclone and MAX series; for new designs Intel recommends migrating to Cyclone IV or Cyclone 10 LP equivalents in equivalent footprints.
Where can I buy EPF10K20TI144-4U and what is the price?
As of 2026-09-11, the EPF10K20TI144-4U is available through franchised distributors such as Jotrin, Censtry and FPGAkey, with industrial-grade stock occasionally appearing on Veswin Electronics and Octopart-listed brokers. Pricing for new-old-stock (NOS) units typically ranges from $20 to $45 in single-piece quantities; lead times vary widely because the part is EOL, so request a quote for firm delivery dates.
What is the lead time and stock status for EPF10K20TI144-4U?
Lead time for the EPF10K20TI144-4U is variable because the part is end-of-life. According to Jotrin, Censtry and FPGAkey listings, brokers typically quote 4-12 weeks for industrial-grade stock; Octopart's distributor panel should be checked daily for the latest inventory. For production runs, lock in lifetime-buy inventory now and qualify a Cyclone IV or Cyclone 10 LP migration path on the same TQFP-144 footprint.
EPF10K20TI144-4U vs EPF10K30ATC144-3 - which is better for industrial control?
For industrial control designs that can fit within 1152 logic elements, the EPF10K20TI144-4U is the lower-cost, lower-power choice. The EPF10K30ATC144-3 is recommended only when the design exceeds 20K gates or requires 3.3 V-only operation; otherwise the EPF10K20TI144-4U's industrial -40 °C to +85 °C temperature grade and 144-TQFP footprint make it the more economical drop-in for typical PLC I/O expansion.
What is the best drop-in replacement for EPF10K20TI144-4U?
The best pin-compatible drop-in replacement is the EPF10K20TI144-4N if the deployment environment remains within 0 °C to +70 °C, or any same-die speed-grade variant such as EPF10K20TI144-3N for slightly relaxed timing. For new designs requiring modern features, Intel's Cyclone IV EP4CE6E22 or Cyclone 10 LP 10CL006YU256C8G provides 6K logic elements in a footprint-compatible migration; however, footprint compatibility requires verification since Cyclone devices use different packages.
Where can I download the EPF10K20TI144-4U datasheet PDF?
The official FLEX 10K family datasheet, which covers the EPF10K20TI144-4U as part of the broader family, can be downloaded from AlteraSemi at https://www.alterasemi.com/datasheet/alterasemi/EPF10K20TI144-4N.pdf. Additional pinout, DC characteristics and timing information for the entire FLEX 10K family is published in Altera's FLEX 10K datasheet family guide (search "FLEX 10K datasheet" on the Altera / Intel FPGA documentation portal).
What is the pinout of the EPF10K20TI144-4U in the 144-TQFP package?
The EPF10K20TI144-4U uses the standard 144-pin TQFP package with pin assignments defined in the FLEX 10K datasheet: 102 user I/O pins (I/O banks), dedicated configuration pins (MSEL, nCONFIG, nSTATUS, CONF_DONE, DCLK), JTAG pins (TDI, TDO, TMS, TCK), power pins (VCCINT 5 V core, VCCIO banked I/O) and GND pins. A complete 144-pin table is included in the FLEX 10K 144-TQFP pinout file on Altera's documentation portal.
What configuration device does EPF10K20TI144-4U require?
The EPF10K20TI144-4U is SRAM-based and therefore volatile, so it requires an external configuration memory such as the Altera EPC2, EPC8 or EPC16 configuration device on every power-up. Per the FLEX 10K datasheet, the configuration data is loaded serially via DCLK/nSTATUS/CONF_DONE; JTAG-based in-system programming is supported via the IEEE 1149.1 boundary-scan chain for prototyping.
Is EPF10K20TI144-4U RoHS compliant?
RoHS compliance status for the EPF10K20TI144-4U is not consistently documented across distributor listings; Altera's FLEX 10K family predates widespread RoHS adoption, so older stock is typically non-RoHS (SnPb) while some industrial-grade batches may be RoHS-compliant. Engineers should request the lot-specific material declaration from the supplier or distributor before integrating into a RoHS-mandated product.

工程参考数据： EPF10K20TI144-4U ——对比、设计指导和合规信息。

选型指南

Choose the EPF10K20TI144-4U when you need a 20K-gate industrial-temperature-grade FPGA in a 144-pin TQFP package for legacy industrial, telecom or motor-control designs operating from -40 °C to +85 °C. Choose the EPF10K20TI144-4N instead if the deployment stays within 0-70 °C, since it offers the same silicon at slightly lower cost. For new designs, evaluate Intel's Cyclone IV EP4CE6E22 or Cyclone 10 LP 10CL006YU256C8G, which provide 6K logic elements at lower voltage but require a TQFP-to-other-package migration. For designs that fit within 10K gates, the EPF10K10TI144-4 is a lower-cost drop-in alternative. Confirm configuration-PROM inventory (EPC2/EPC8) before committing to a production run, as these are also EOL.

与替代料对比

参数 本产品 EPF10K20TI144-4N EPF10K20TC144-4 EPF10K20TC144-3 EPF10K10TI144-4
Brand Intel (Altera) Intel (Altera) Intel (Altera) Intel (Altera) Intel (Altera)
Package 144-TQFP 144-TQFP 144-TQFP 144-TQFP 144-TQFP
Logic Elements 1152 1152 1152 1152 720 (10K gates)
Typical Gates 20,000 20,000 20,000 20,000 10,000
Embedded RAM Bits 12,288 12,288 12,288 12,288 6,144
Speed Grade -4 -4 -4 -3 (slower) -4
Temperature Grade Industrial (-40 °C to +85 °C) Commercial (0 °C to +70 °C) Commercial (0 °C to +70 °C) Commercial (0 °C to +70 °C) Industrial (-40 °C to +85 °C)
User I/Os 102 102 102 102 102
Lifecycle Status Obsolete (EOL) Obsolete (EOL) Obsolete (EOL) Obsolete (EOL) Obsolete (EOL)

关键差异点

  • Industrial temperature grade (U suffix) （对比 EPF10K20TI144-4N)
  • Same-die -4 speed grade for timing-critical designs （对比 EPF10K20TC144-3)
  • 20K-gate capacity in 144-TQFP industrial grade （对比 EPF10K10TI144-4)

设计说明

The EPF10K20TI144-4U requires a stable 5.0 V core supply (VCCINT) and a separately decoupled VCCIO rail per I/O bank. Per the FLEX 10K datasheet, each VCCINT pin should be bypassed with a 0.1 µF ceramic capacitor placed within 5 mm of the pin, plus a 10 µF tantalum bulk capacitor near the package. The I/O banks (VCCIO) can each be powered at 3.3 V or 5.0 V independently to support mixed-voltage interfacing; bypass each VCCIO pin identically. Sequence the supplies so VCCINT is established before VCCIO if 5 V I/O is used with a 3.3 V core logic family in adjacent banks, to prevent back-powering through I/O clamping diodes.

Place the EPC8 or EPC2 configuration PROM as close as physically possible to the DCLK, nCONFIG, nSTATUS, CONF_DONE and DATA0 pins of the EPF10K20TI144-4U. Routing these traces over 25 mm introduces timing skew that can cause configuration failures at cold temperature. Per Altera's FLEX 10K hardware reference, keep the JTAG chain (TDI/TDO/TMS/TCK) under 150 mm total and add a 10 kΩ pull-up on nCONFIG and a 10 kΩ pull-down on JTAG TMS per IEEE 1149.1. Maintain a continuous ground plane under the TQFP-144 paddle area for thermal dissipation; the device can dissipate up to 1.5 W at 100 % logic utilization.

Do not assume that the EPF10K20TI144-4U is electrically compatible with later Cyclone devices on the same TQFP-144 footprint - the JTAG, configuration and power schemes differ fundamentally. Per the FLEX 10K datasheet, configuration data is loaded synchronously from an external PROM using DCLK; Cyclone IV/10 LP devices use active serial (AS) mode with EPCQ PROMs, which is NOT compatible with EPC8/EPC2 timing. Also note that the FLEX 10K device is volatile (SRAM-based), so the configuration must reload on every power-up; a missing or improperly programmed EPC8 will leave the device unconfigured with all I/Os tri-stated.

When driving long PCB traces or external cables, configure EPF10K20TI144-4U outputs with the slowest slew-rate setting in the Quartus / MAX+PLUS II assignment editor to limit ground bounce and EMI. Per the FLEX 10K datasheet, the device supports 2.5-3.3-5.0 V I/O standards with PCI-compliant drive strength; use PCI drive only on signals that require it, since high-strength outputs inject switching noise into adjacent analog sections. Add 22-33 Ω series-termination resistors on clock outputs and high-speed (>50 MHz) control signals to dampen reflections on traces longer than 50 mm.

合规信息

RoHS
Unknown
REACH
Unknown
AEC-Q100
Not Applicable
无铅
Unknown
无卤
Unknown
冲突矿物
Unknown

RoHS and lead-free status not consistently documented across distributor listings for the EPF10K20TI144-4U; Altera's FLEX 10K family predates widespread RoHS adoption. Request lot-specific material declaration from the supplier before integration into a RoHS-mandated product. AEC-Q100 is not applicable as the device is not marketed as automotive-qualified.

数据核验日期： 2026-09-11 ——数据由 XAIPART 元器件工程团队核验和整理

相关搜索

EPF10K20TI144-4U EPF10K20TI144-4U datasheet Altera FLEX 10K FPGA 144-TQFP 20K gate industrial FPGA 5V 144-pin TQFP FPGA -40 to 85C EPF10K20TI144-4U PLC industrial control EPF10K20TI144-4U vs EPF10K20TI144-4N EPF10K20TI144-4U drop-in replacement buy EPF10K20TI144-4U price stock FLEX 10K EOL obsolete alternative EPF10K20TI144-4U configuration EPC8 Altera 1152 logic elements FPGA

相关元器件 & 术语

Intel Altera EPF10K20TI144-4U EPF10K20TI144-4N EPF10K20TC144-4 EPF10K20TC144-3 EPF10K10TI144-4 FLEX 10K FLEX-10K family FPGA Field-Programmable Gate Array Programmable Logic Device Embedded Array Block (EAB) Logic Array Block (LAB) TQFP-144 144-pin TQFP Logic Element (LE) Configuration PROM EPC2 EPC8 JTAG IEEE 1149.1 PCI 5V CMOS industrial temperature grade SOPC megafunction RoHS lead-free
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