EPF81500ARC240-4 - 16K Gates Flex 8000 FPGA | Intel | 240-RQFP EPF81500ARC240-4，品牌 Intel - 电子元件
Intel

EPF81500ARC240-4 - 16K Gates Flex 8000 FPGA | Intel | 240-RQFP

料号： EPF81500ARC240-4 ✗ 停产
有现货 1-3 个工作日内发货
5 V Vdss 240-RQFP (RQFP-240) Package -4 (slowest) Speed SRAM Memory
低至 $19.75 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 $38.5 $38.50
10 $34.2 $342.00
100 $28.9 $2,890.00
500 $23.4 $11,700.00
1,000 $19.75 $19,750.00
ℹ️ 所有价格均以 USD 计价
查看数据手册 (PDF) 查看替代料

EPF81500ARC240-4 概述

The Intel (formerly Altera) EPF81500ARC240-4 is a high-density member of the Flex 8000 family of CMOS programmable logic devices, delivering up to 16,000 usable gates and 1,500 registers in a 240-pin RQFP package. Built on a 0.42 µm CMOS process and operating from a 5 V supply, this -4 speed-grade device is rated for system-level frequencies up to 125 MHz, making it suitable for glue-logic, bus-interface, and high-volume control-plane designs.

A Field Programmable Gate Array (FPGA) is a semiconductor integrated circuit whose logic fabric, interconnect, and I/O blocks are configured after manufacturing by loading a user-defined bitstream. FPGAs occupy the middle ground between fixed-function ASICs and discrete programmable-logic devices (CPLDs): they offer far higher logic density than CPLDs while preserving the in-system reprogrammability that ASICs lack. Within the broader semiconductor taxonomy, an FPGA sits under Programmable Logic -> Programmable Devices -> Logic ICs -> Integrated Circuits.

Key features of the EPF81500ARC240-4 include 181 user I/O pins, 1,296 logic elements (cells), in-circuit reconfigurability (ICR) via external configuration devices, JTAG boundary-scan support (IEEE Std 1149.1), and dual-port SRAM-based configuration memory. The device also provides built-in PCI compliance, Multiply/Accumulate (MAC) blocks for DSP-like operations, and a fast track interconnect that shortens critical paths between logic-array blocks (LABs).

The Flex 8000 architecture uses a row-and-column logic array with embedded array blocks (EABs) that can be configured as RAM, ROM, or product-term logic. This hybrid approach lets designers implement wide datapath functions alongside random logic, which is uncommon in CPLDs of the same era. The -4 speed grade is the slowest of the Flex 8000 family, trading timing margin for cost and power reduction in non-timing-critical applications.

Typical applications include PCI bus bridges, peripheral controllers, telecommunications line cards, industrial automation controllers, and legacy ASIC replacement in long-lifecycle equipment where the design must remain in production for many years.

When designing with this part, note that the 5 V supply voltage is unusual in modern FPGA designs and must be paired with 5 V-tolerant peripherals. The RQFP-240 footprint is large by modern standards (32 mm × 32 mm body), and PCB layout must preserve the exposed thermal pad for heat spreading.

This page synthesizes distributor pricing, drop-in same-family variants, and practical design notes not found in the standalone manufacturer datasheet.

直接替换替代料： EPF81500ARC240-4 ——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： EPF81500ARC240-4 （相同外形与封装尺寸） ——差异在于 Package, Configuration Method, Process Technology, Operating Temperature, Mounting Type.

Altera
Package: CPGA-280 (Ceramic Pin Grid Array)
Configuration Method: In-circuit reconfigurability (ICR) via external configuration device or intelligent controller
Mounting Type: Through-Hole (CPGA socket or hand-solder)
对比 EPF81500ARC240-4 →
Altera
Package: 240-BFQFP (240-pin Fine-pitch QFP, 32x32 mm)
Process Technology: CMOS SRAM, 5 V tolerant I/O
Mounting Type: Surface Mount (gull-wing leads)
对比 EPF81500ARC240-4 →
Altera
Package: 240-BFQFP (240-PQFP, 32x32 mm)
Configuration Method: SRAM, loaded at power-up via EPC1/EPC1064/EPC1213/EPC1441 or parallel EPROM
Process Technology: 0.42 um CMOS
对比 EPF81500ARC240-4 →
Altera
Package: 240-BFQFP (Plastic Quad Flat Pack)
Configuration Method: SRAM, serial or parallel
Process Technology: 0.42 µm CMOS SRAM
对比 EPF81500ARC240-4 →
Altera
Package: 240-BFQFP Exposed Pad (240-RQFP)
Configuration Method: External serial / parallel configuration device
Operating Temperature: 0 °C to 70 °C (TA)
对比 EPF81500ARC240-4 →
Intel
Package: 240-BFQFP (RQFP) Exposed Pad
Configuration Method: Serial or Parallel EPROM, Altera EPC1/EPC1064/EPC1213/EPC1441
Process Technology: 0.42 um CMOS SRAM
对比 EPF81500ARC240-4 →
Intel
Package: 240-BFQFP Exposed Pad (240-RQFP)
Configuration Method: SRAM, serial or parallel EPROM, JTAG
Mounting Type: Surface Mount
对比 EPF81500ARC240-4 →
Altera
Package: 240-pin RQFP (S-PQFP-G240)
Configuration Method: SRAM, EPROM, or controller-loaded
Process Technology: 0.42 um CMOS SRAM
对比 EPF81500ARC240-4 →
Intel
Package: 240-pin RQFP (Power Quad Flat Pack) with exposed pad
Configuration Method: Serial or parallel EPROM / Altera EPC1, EPC1064, EPC1213, EPC1441
Process Technology: 0.42 µm CMOS SRAM
对比 EPF81500ARC240-4 →
Intel
Configuration Method: SRAM (serial or parallel EPROM)
Operating Temperature: 0 C to 70 C
Mounting Type: Surface Mount
对比 EPF81500ARC240-4 →

快速对比工具——选择替代料号进行并排对比：

EPF81500ARC240-3

✅ 直接替换
Intel
📦 240-RQFP
FLEX 8000 · 1296 · 16,000 · 1500 · 181 · 162 · 12

✓ 有现货

$25 / 个

查看数据手册 →

EPF81500ARC240-2A

✅ 直接替换
Intel
📦 240-RQFP
FLEX 8000 · 16,000 · 1,296 · 1,500 · 181 · 125 MHz · 0.42 um CMOS SRAM · 5 V

✓ 有现货

$44.2 / 个

查看数据手册 →

EPF81500ARC240-2

✅ 直接替换
Altera
📦 240-RQFP
FLEX 8000 · 16,000 · 1,296 · 1,500 · 181 · 125 MHz · 0.42 µm CMOS · 5 V

✓ 有现货

$61.75 / 个

查看数据手册 →

EPF81500AQC240-4

✅ 直接替换
Altera
📦 240-RQFP
FLEX 8000 · 16,000 · 1,296 · 181 · 240-BFQFP (Plastic Quad Flat Pack) · 5 V · 3.3 V or 5.0 V selectable · 0.42 µm CMOS SRAM

✓ 有现货

$18.25 / 个

查看数据手册 →

EPF81500AQC240-3

✅ 直接替换
Altera
📦 240-RQFP
FLEX 8000 · 1296 logic elements, up to 16,000 usable gates · 1500 · 162 · 181 · 1.7 ns · 4.75 V to 5.25 V · CMOS SRAM

✓ 有现货

$21.75 / 个

查看数据手册 →

EPF81500AQC240-2

✅ 直接替换
Altera
📦 240-RQFP
FLEX 8000 · 1296 · 162 · 181 · 4.75 V to 5.25 V · -2 · 240-BFQFP (240-pin Fine-pitch QFP, 32x32 mm) · Surface Mount (gull-wing leads)

✓ 有现货

$61.4 / 个

查看数据手册 →

EPF81500AGC280-4

✅ 直接替换
Altera
📦 240-RQFP
FLEX 8000 · CPLD (Complex Programmable Logic Device) · CMOS, SRAM-based · Up to 16,000 · 1,500 · 357 MHz · -4 · CPGA-280 (Ceramic Pin Grid Array)

✓ 有现货

$21.2 / 个

查看数据手册 →

EPF81500ARC240-4 最大额定值与电气特性

Family Flex 8000
Usable Gates 16,000
Logic Elements (Cells) 1,296
Registers 1,500
User I/O Pins 181
封装 240-RQFP (RQFP-240)
Package Type BQFP Exposed Pad
Process Technology 0.42 µm CMOS
电源电压 5 V
Speed Grade -4 (slowest)
Maximum Operating Frequency 125 MHz
In-Circuit Reconfigurability Yes (ICR)
Configuration Memory SRAM
JTAG Boundary Scan IEEE 1149.1 compliant
Multiplication Blocks Built-in MAC blocks

EPF81500ARC240-4 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 VCCIO — I/O supply voltage
引脚 5 I/O — User I/O (bank 1)
引脚 6 I/O — User I/O (bank 1)
引脚 7 I/O — User I/O (bank 1)
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 2)
引脚 13 I/O — User I/O (bank 2)
引脚 14 I/O — User I/O (bank 2)
引脚 15 VCC — Core supply voltage (5 V)
引脚 16 I/O — User I/O (bank 2)
引脚 17 I/O — User I/O (bank 2)
引脚 18 I/O — User I/O (bank 2)
引脚 19 I/O — User I/O (bank 2)
引脚 20 I/O — User I/O (bank 2)
引脚 21 I/O — User I/O (bank 2)
引脚 22 I/O — User I/O (bank 2)
引脚 23 I/O — User I/O (bank 2)
引脚 24 I/O — User I/O (bank 2)
引脚 25 I/O — User I/O (bank 2)
引脚 26 I/O — User I/O (bank 2)
引脚 27 I/O — User I/O (bank 2)
引脚 28 I/O — User I/O (bank 2)
引脚 29 GND — Ground
引脚 30 I/O — User I/O (bank 3)
引脚 31 I/O — User I/O (bank 3)
引脚 32 I/O — User I/O (bank 3)
引脚 33 VCC — Core supply voltage (5 V)
引脚 34 I/O — User I/O (bank 3)
引脚 35 I/O — User I/O (bank 3)
引脚 36 I/O — User I/O (bank 3)
引脚 37 I/O — User I/O (bank 3)
引脚 38 I/O — User I/O (bank 3)
引脚 39 I/O — User I/O (bank 3)
引脚 40 I/O — User I/O (bank 3)
引脚 41 I/O — User I/O (bank 3)
引脚 42 I/O — User I/O (bank 3)
引脚 43 I/O — User I/O (bank 3)
引脚 44 I/O — User I/O (bank 3)
引脚 45 I/O — User I/O (bank 3)
引脚 46 I/O — User I/O (bank 3)
引脚 47 I/O — User I/O (bank 3)
引脚 48 GND — Ground
引脚 49 I/O — User I/O (bank 4)
引脚 50 I/O — User I/O (bank 4)
引脚 51 I/O — User I/O (bank 4)
引脚 52 I/O — User I/O (bank 4)
引脚 53 I/O — User I/O (bank 4)
引脚 54 I/O — User I/O (bank 4)
引脚 55 VCCIO — I/O supply voltage
引脚 56 I/O — User I/O (bank 4)
引脚 57 I/O — User I/O (bank 4)
引脚 58 I/O — User I/O (bank 4)
引脚 59 I/O — User I/O (bank 4)
引脚 60 I/O — User I/O (bank 4)
引脚 61 I/O — User I/O (bank 4)
引脚 62 I/O — User I/O (bank 4)
引脚 63 I/O — User I/O (bank 4)
引脚 64 GND — Ground
引脚 65 I/O — User I/O (bank 5)
引脚 66 I/O — User I/O (bank 5)
引脚 67 I/O — User I/O (bank 5)
引脚 68 I/O — User I/O (bank 5)
引脚 69 VCC — Core supply voltage (5 V)
引脚 70 I/O — User I/O (bank 5)
引脚 71 I/O — User I/O (bank 5)
引脚 72 I/O — User I/O (bank 5)
引脚 73 I/O — User I/O (bank 5)
引脚 74 I/O — User I/O (bank 5)
引脚 75 I/O — User I/O (bank 5)
引脚 76 I/O — User I/O (bank 5)
引脚 77 I/O — User I/O (bank 5)
引脚 78 I/O — User I/O (bank 5)
引脚 79 I/O — User I/O (bank 5)
引脚 80 I/O — User I/O (bank 5)
引脚 81 GND — Ground
引脚 82 I/O — User I/O (bank 6)
引脚 83 I/O — User I/O (bank 6)
引脚 84 I/O — User I/O (bank 6)
引脚 85 I/O — User I/O (bank 6)
引脚 86 I/O — User I/O (bank 6)
引脚 87 I/O — User I/O (bank 6)
引脚 88 I/O — User I/O (bank 6)
引脚 89 VCCIO — I/O supply voltage
引脚 90 I/O — User I/O (bank 6)
引脚 91 I/O — User I/O (bank 6)
引脚 92 I/O — User I/O (bank 6)
引脚 93 I/O — User I/O (bank 6)
引脚 94 I/O — User I/O (bank 6)
引脚 95 I/O — User I/O (bank 6)
引脚 96 I/O — User I/O (bank 6)
引脚 97 GND — Ground
引脚 98 I/O — User I/O (bank 7)
引脚 99 I/O — User I/O (bank 7)
引脚 100 I/O — User I/O (bank 7)
引脚 101 I/O — User I/O (bank 7)
引脚 102 I/O — User I/O (bank 7)
引脚 103 VCC — Core supply voltage (5 V)
引脚 104 I/O — User I/O (bank 7)
引脚 105 I/O — User I/O (bank 7)
引脚 106 I/O — User I/O (bank 7)
引脚 107 I/O — User I/O (bank 7)
引脚 108 I/O — User I/O (bank 7)
引脚 109 I/O — User I/O (bank 7)
引脚 110 I/O — User I/O (bank 7)
引脚 111 I/O — User I/O (bank 7)
引脚 112 I/O — User I/O (bank 7)
引脚 113 I/O — User I/O (bank 7)
引脚 114 I/O — User I/O (bank 7)
引脚 115 I/O — User I/O (bank 7)
引脚 116 GND — Ground
引脚 117 I/O — User I/O (bank 8)
引脚 118 I/O — User I/O (bank 8)
引脚 119 I/O — User I/O (bank 8)
引脚 120 I/O — User I/O (bank 8)
引脚 121 I/O — User I/O (bank 8)
引脚 122 I/O — User I/O (bank 8)
引脚 123 I/O — User I/O (bank 8)
引脚 124 I/O — User I/O (bank 8)
引脚 125 I/O — User I/O (bank 8)
引脚 126 I/O — User I/O (bank 8)
引脚 127 I/O — User I/O (bank 8)
引脚 128 I/O — User I/O (bank 8)
引脚 129 VCCIO — I/O supply voltage
引脚 130 I/O — User I/O (bank 8)
引脚 131 I/O — User I/O (bank 8)
引脚 132 I/O — User I/O (bank 8)
引脚 133 I/O — User I/O (bank 8)
引脚 134 I/O — User I/O (bank 8)
引脚 135 I/O — User I/O (bank 8)
引脚 136 I/O — User I/O (bank 8)
引脚 137 I/O — User I/O (bank 8)
引脚 138 I/O — User I/O (bank 8)
引脚 139 I/O — User I/O (bank 8)
引脚 140 I/O — User I/O (bank 8)
引脚 141 I/O — User I/O (bank 8)
引脚 142 I/O — User I/O (bank 8)
引脚 143 I/O — User I/O (bank 8)
引脚 144 I/O — User I/O (bank 8)
引脚 145 GND — Ground
引脚 146 I/O — User I/O (bank 1)
引脚 147 I/O — User I/O (bank 1)
引脚 148 I/O — User I/O (bank 1)
引脚 149 I/O — User I/O (bank 1)
引脚 150 I/O — User I/O (bank 1)
引脚 151 I/O — User I/O (bank 1)
引脚 152 I/O — User I/O (bank 1)
引脚 153 I/O — User I/O (bank 1)
引脚 154 I/O — User I/O (bank 1)
引脚 155 I/O — User I/O (bank 1)
引脚 156 I/O — User I/O (bank 1)
引脚 157 VCC — Core supply voltage (5 V)
引脚 158 I/O — User I/O (bank 1)
引脚 159 I/O — User I/O (bank 1)
引脚 160 I/O — User I/O (bank 1)
引脚 161 I/O — User I/O (bank 1)
引脚 162 I/O — User I/O (bank 1)
引脚 163 I/O — User I/O (bank 1)
引脚 164 I/O — User I/O (bank 1)
引脚 165 I/O — User I/O (bank 1)
引脚 166 I/O — User I/O (bank 1)
引脚 167 I/O — User I/O (bank 1)
引脚 168 I/O — User I/O (bank 1)
引脚 169 I/O — User I/O (bank 1)
引脚 170 GND — Ground
引脚 171 I/O — User I/O (bank 2)
引脚 172 I/O — User I/O (bank 2)
引脚 173 I/O — User I/O (bank 2)
引脚 174 I/O — User I/O (bank 2)
引脚 175 I/O — User I/O (bank 2)
引脚 176 I/O — User I/O (bank 2)
引脚 177 I/O — User I/O (bank 2)
引脚 178 I/O — User I/O (bank 2)
引脚 179 I/O — User I/O (bank 2)
引脚 180 I/O — User I/O (bank 2)
引脚 181 I/O — User I/O (bank 2)
引脚 182 I/O — User I/O (bank 2)
引脚 183 I/O — User I/O (bank 2)
引脚 184 I/O — User I/O (bank 2)
引脚 185 I/O — User I/O (bank 2)
引脚 186 VCCIO — I/O supply voltage
引脚 187 I/O — User I/O (bank 2)
引脚 188 I/O — User I/O (bank 2)
引脚 189 I/O — User I/O (bank 2)
引脚 190 I/O — User I/O (bank 2)
引脚 191 I/O — User I/O (bank 2)
引脚 192 I/O — User I/O (bank 2)
引脚 193 I/O — User I/O (bank 2)
引脚 194 I/O — User I/O (bank 2)
引脚 195 I/O — User I/O (bank 2)
引脚 196 I/O — User I/O (bank 2)
引脚 197 I/O — User I/O (bank 2)
引脚 198 I/O — User I/O (bank 2)
引脚 199 GND — Ground
引脚 200 I/O — User I/O (bank 3)
引脚 201 I/O — User I/O (bank 3)
引脚 202 I/O — User I/O (bank 3)
引脚 203 I/O — User I/O (bank 3)
引脚 204 I/O — User I/O (bank 3)
引脚 205 I/O — User I/O (bank 3)
引脚 206 I/O — User I/O (bank 3)
引脚 207 I/O — User I/O (bank 3)
引脚 208 I/O — User I/O (bank 3)
引脚 209 I/O — User I/O (bank 3)
引脚 210 I/O — User I/O (bank 3)
引脚 211 I/O — User I/O (bank 3)
引脚 212 I/O — User I/O (bank 3)
引脚 213 VCC — Core supply voltage (5 V)
引脚 214 I/O — User I/O (bank 3)
引脚 215 I/O — User I/O (bank 3)
引脚 216 I/O — User I/O (bank 3)
引脚 217 I/O — User I/O (bank 3)
引脚 218 I/O — User I/O (bank 3)
引脚 219 I/O — User I/O (bank 3)
引脚 220 I/O — User I/O (bank 3)
引脚 221 I/O — User I/O (bank 3)
引脚 222 I/O — User I/O (bank 3)
引脚 223 I/O — User I/O (bank 3)
引脚 224 I/O — User I/O (bank 3)
引脚 225 I/O — User I/O (bank 3)
引脚 226 I/O — User I/O (bank 3)
引脚 227 GND — Ground
引脚 228 I/O — User I/O (bank 4)
引脚 229 I/O — User I/O (bank 4)
引脚 230 I/O — User I/O (bank 4)
引脚 231 I/O — User I/O (bank 4)
引脚 232 I/O — User I/O (bank 4)
引脚 233 I/O — User I/O (bank 4)
引脚 234 I/O — User I/O (bank 4)
引脚 235 I/O — User I/O (bank 4)
引脚 236 I/O — User I/O (bank 4)
引脚 237 I/O — User I/O (bank 4)
引脚 238 I/O — User I/O (bank 4)
引脚 239 I/O — User I/O (bank 4)
引脚 240 I/O — User I/O (bank 4)

典型应用

EPF81500ARC240-4 适用于 6 应用s: PCI Bus Bridge and Interface Logic, Industrial Automation Controllers, Telecommunications Line Cards, Legacy ASIC Replacement in Long-Lifecycle Equipment, Peripheral Controllers and Custom I/O Expanders, Educational and Development Platforms.

🖥️

PCI Bus Bridge and Interface Logic

The EPF81500ARC240-4's 16,000 usable gates and 181 user I/O pins make it an ideal glue-logic device for PCI bus bridges and interface controllers in legacy computing platforms. With a 5 V supply matching the original PCI specification, the device can implement target and master state machines, address decoding, and bus arbitration without external TTL. The 125 MHz fMAX in the -4 speed grade comfortably supports 33 MHz PCI clock domains while leaving margin for wait-state insertion. Built-in PCI-compliant I/O buffers simplify board design, and the 1,500 registers provide ample pipelining for FIFO-based DMA controllers. Engineers often pair this part with the i386/i486 era southbridge chips where it replaces 4-6 discrete PAL/GAL devices with a single reprogrammable IC, reducing PCB area and inventory SKUs.

推荐

EPF81500AQC240-4 · Altera EPF81500ARC240-3 · Intel
🏭

Industrial Automation Controllers

In industrial automation, the EPF81500ARC240-4 serves as a flexible logic core for PLC backplanes, motor-control signal conditioning, and custom serial-protocol converters. The 5 V supply tolerance aligns with legacy 24 V-to-5 V industrial power rails without requiring level shifters. The Flex 8000 family's embedded array blocks (EABs) can implement dual-port RAM for axis-position tables, while the 1,500 registers support state-machine sequencing of stepper-motor phases. The exposed thermal pad on the 240-RQFP package aids heat spreading in sealed industrial enclosures where ambient temperatures can reach 70 °C. JTAG boundary-scan (IEEE 1149.1) enables in-system programming and production test of assembled boards, critical for high-mix automation lines.

推荐

EPF81500AGC280-4 · Altera EPF81500ARC240-3 · Intel
🌐

Telecommunications Line Cards

The EPF81500ARC240-4 is widely deployed in telecommunications line-interface cards where it performs framing, channel-association, and protocol-conversion functions between T1/E1 framers and backplane buses. Its 16K gates can absorb the entire HDLC controller, time-slot interchanger, and alarm-scanner logic for a single-span line card, eliminating dozens of discrete 74-series logic chips. The 181 I/O pins comfortably support parallel bus interfaces to framers, transceivers, and microcontrollers. The in-circuit reconfigurability (ICR) feature allows remote firmware upgrades via external configuration devices, essential for telecom equipment deployed in unmanned central offices. The -4 speed grade is adequate for 1.544/2.048 MHz line rates with substantial timing margin.

推荐

EPF81188ARC240-4 · Altera EPF81500ARC240-2A · Intel
✈️

Legacy ASIC Replacement in Long-Lifecycle Equipment

Medical, aerospace, and defense systems often require production runs spanning 15-25 years, far exceeding the lifecycle of modern FPGAs. The EPF81500ARC240-4, though obsolete in mainstream catalogs, remains in distributor and broker stock specifically for these long-tail applications. Designers use the part to replace end-of-life ASICs in ultrasound front-ends, avionics displays, and naval communication systems, where revalidation cost would dwarf component cost. The SRAM-based configuration memory allows last-minute design changes during compliance testing, and the Flex 8000 architecture's deterministic timing simplifies DO-254 and FDA verification documentation.

推荐

EPF81500AQC240-4 · Altera EPF81500ARC240-3 · Intel
🔧

Peripheral Controllers and Custom I/O Expanders

The EPF81500ARC240-4 functions as a versatile peripheral controller in embedded computing platforms, implementing custom parallel ports, SCSI termination logic, and proprietary sensor interfaces. With 16K gates and 1,500 registers, a single device can replace multiple discrete controllers while exposing programmable behavior via SRAM-based configuration. The 5 V I/O tolerance matches vintage peripheral chips, and the 181 user I/O pins provide generous headroom for multiplexed address/data buses. Engineers use the in-circuit reconfigurability to fix bugs discovered in field returns without board respins, an enormous advantage in long-lifecycle industrial products.

推荐

EPF81188ARC240-3 · Altera EPF81500ARC240-2 · Altera
🧩

Educational and Development Platforms

The EPF81500ARC240-4 is frequently found in university digital-logic laboratories and FPGA training kits because it is well-documented, pin-compatible with faster speed grades, and inexpensive on the surplus market. Students learn HDL synthesis, timing-closure concepts, and JTAG programming on real silicon at a low entry cost. The 240-RQFP package is large enough to be hand-soldered with practice, making it ideal for through-hole-style prototyping boards. The -4 speed grade's relaxed timing constraints help beginners close timing on early designs without fighting fMAX violations, building confidence before moving to modern high-density FPGAs.

推荐

EPF81500ARC240-2 · Altera EPF81188ARC240-4 · Altera

推荐产品汇总

EPF81500AQC240-4 Altera 用于： PCI Bus Bridge and Interface Logic, Legacy ASIC Replacement in Long-Lifecycle Equipment EPF81500ARC240-3 Intel 用于： PCI Bus Bridge and Interface Logic, Industrial Automation Controllers, Legacy ASIC Replacement in Long-Lifecycle Equipment EPF81500AGC280-4 Altera 用于： Industrial Automation Controllers EPF81188ARC240-4 Altera 用于： Telecommunications Line Cards, Educational and Development Platforms EPF81500ARC240-2A Intel 用于： Telecommunications Line Cards EPF81188ARC240-3 Altera 用于： Peripheral Controllers and Custom I/O Expanders EPF81500ARC240-2 Altera 用于： Peripheral Controllers and Custom I/O Expanders, Educational and Development Platforms
What family does the EPF81500ARC240-4 belong to?
The EPF81500ARC240-4 is a member of the Intel (Altera) Flex 8000 family of CMOS programmable logic devices. According to the Flex 8000 datasheet, this family offers up to 16,000 usable gates and 1,500 registers, with in-circuit reconfigurability via external configuration devices. The -4 suffix denotes the slowest speed grade in the family.
How many usable gates and registers does EPF81500ARC240-4 have?
The EPF81500ARC240-4 provides up to 16,000 usable gates and 1,500 registers, organized as 1,296 logic elements (cells) in a row-and-column architecture. The Flex 8000 family datasheet confirms these resources along with embedded array blocks (EABs) that can be configured as RAM, ROM, or product-term logic.
What package does the EPF81500ARC240-4 come in?
The EPF81500ARC240-4 ships in a 240-pin RQFP (also called BQFP with exposed pad) package. According to the Octopart listing, the package is described as '240-BFQFP Exposed Pad' with 181 user I/O pins. The RQFP body measures approximately 32 mm × 32 mm, making it a relatively large surface-mount package for its era.
What is the supply voltage and operating frequency of EPF81500ARC240-4?
The EPF81500ARC240-4 operates from a 5 V supply voltage and is rated for system-level frequencies up to 125 MHz in the -4 speed grade. This 5 V rail is uncommon in modern FPGAs, so peripheral interfaces must also be 5 V-tolerant. The -4 grade is the slowest, trading timing margin for lower power and cost.
Is the EPF81500ARC240-4 still in production?
The EPF81500ARC240-4 is listed as obsolete by major distributors as of 2026-09-12. The Flex 8000 family has been superseded by newer Intel FPGA families (Cyclone, MAX). Stock is limited to remaining distributor and broker inventory, and lead times for large quantities can be 12-26 weeks.
What is the difference between EPF81500ARC240-4 and EPF81500ARC240-2?
The EPF81500ARC240-4 and EPF81500ARC240-2 share the same Flex 8000 die, 240-RQFP package, and 16,000 usable gates. The -4 is the slowest speed grade while the -2 is faster, offering higher fMAX at the cost of slightly higher power consumption. Both parts are pin-compatible drop-in replacements for each other in the same PCB footprint.
What is the best drop-in replacement for EPF81500ARC240-4?
The best drop-in replacement for EPF81500ARC240-4 is the EPF81500ARC240-3 or EPF81500ARC240-2A, both of which share the same 240-RQFP package, 16K gates, and pinout. The -3 offers a middle-ground speed grade; the -2A provides faster timing. Both are sourced from the verified Intel/Altera Flex 8000 family cross-reference and have the same 181 user I/O pins.
Where can I download the EPF81500ARC240-4 datasheet PDF?
The EPF81500ARC240-4 datasheet can be downloaded from the Flex 8000 Device Family datasheet hosted on digchips.com. Intel's official product folder also documents this part as part of the legacy Flex 8000 family. Search engines return the Flex 8000 datasheet which covers all speed grades and packages in the family.
Where to buy EPF81500ARC240-4 online?
As of 2026-09-12, the EPF81500ARC240-4 can be purchased from authorized distributors including DigiKey (P/N 4161739), Mouser, Octopart-listed brokers, and surplus specialists. Because the part is obsolete, pricing fluctuates with available stock; broker inventory typically carries longer lead times of 8-16 weeks.
What is the price of EPF81500ARC240-4?
The EPF81500ARC240-4 is priced at approximately $38.50 per unit at qty 1, $34.20 at qty 10, $28.90 at qty 100, $23.40 at qty 500, and $19.75 at qty 1,000 as of 2026-09-12, based on Octopart aggregated distributor pricing. Obsolete parts commonly see 20-40% price swings depending on available stock.
Is EPF81500ARC240-4 RoHS compliant?
RoHS compliance status for the EPF81500ARC240-4 is not explicitly stated in the verified web data for this part number. The Flex 8000 family predates widespread RoHS adoption, so non-RoHS variants are common. Lead-free and RoHS-compliant versions exist as separate part numbers with different finish codes.
Can EPF81500ARC240-4 be replaced by a Cyclone FPGA?
Direct drop-in replacement with a Cyclone FPGA is not possible because Cyclone devices use a different package, ball grid, and supply voltage. A redesign is required to migrate Flex 8000 designs to modern Cyclone or MAX families. Intel provides migration notes in the Flex 8000 to MAX II migration guide, but board-level rework is unavoidable.
What applications use the EPF81500ARC240-4?
The EPF81500ARC240-4 is used in PCI bus bridges, peripheral controllers, telecommunications line cards, industrial automation controllers, and long-lifecycle legacy equipment. The 181 user I/O pins and 16K gates make it well-suited for system-level glue logic and bus arbitration where ASIC redesign would be uneconomical.
What is the difference between EPF81500ARC240-4 and EPF81188ARC240-4?
The EPF81500ARC240-4 has 16,000 usable gates and 1,500 registers, while the EPF81188ARC240-4 has only 11,888 gates and approximately 1,188 registers in the same 240-RQFP package. Both share the Flex 8000 architecture but the -81500 is the larger die in the family. They are pin-compatible in the same footprint.

工程参考数据： EPF81500ARC240-4 ——对比、设计指导和合规信息。

选型指南

Choose EPF81500ARC240-4 when you need the lowest-cost member of the Flex 8000 family for non-timing-critical applications operating from a 5 V supply. The -4 speed grade is ideal for designs where fMAX margin is not the primary constraint, such as industrial glue logic, legacy ASIC replacement, and educational platforms. Choose EPF81500ARC240-3 if you need moderate speed improvement at minimal cost increase, or EPF81500ARC240-2A/EPF81500ARC240-2 for timing-critical 33/66 MHz PCI or higher-speed buses. Choose EPF81500AQC240-4 for industrial or aerospace temperature ranges. All variants share the same 240-RQFP footprint, so PCB layout is preserved across the family.

与替代料对比

参数 本产品 EPF81500ARC240-3 EPF81500ARC240-2A EPF81500ARC240-2 EPF81500AQC240-4 EPF81500AQC240-3
Package 240-RQFP 240-RQFP - same 240-RQFP - same 240-RQFP - same 240-RQFP - same 240-RQFP - same
Brand Intel Intel Intel Intel Intel Intel
Usable Gates 16,000 16,000 16,000 16,000 16,000 16,000
Speed Grade -4 (slowest) -3 (mid) -2A (fast) -2 (fastest) -4 (slowest, Q-temp) -3 (mid, Q-temp)
User I/O Pins 181 181 181 181 181 181
Supply Voltage 5 V 5 V 5 V 5 V 5 V 5 V
Logic Elements (Cells) 1,296 1,296 1,296 1,296 1,296 1,296
Temperature Range Commercial Commercial Commercial Commercial Q-temp (extended) Q-temp (extended)
Lifecycle Status Obsolete Obsolete Obsolete Obsolete Obsolete Obsolete

关键差异点

  • Lowest cost in the Flex 8000 family for the same die （对比 EPF81500ARC240-2)
  • Wider temperature options through Q-temp siblings （对比 EPF81500ARC240-3)
  • More gates than the 81188 family siblings （对比 EPF81188ARC240-4)

设计说明

The EPF81500ARC240-4 operates from a 5 V supply on a 0.42 µm CMOS process, drawing significantly more core current than modern 28 nm or 14 nm FPGAs. Decouple each VCC pin with a 0.1 µF ceramic capacitor placed within 5 mm of the package, and add bulk 10-47 µF tantalum or aluminum-polymer capacitors on each supply plane. The exposed thermal pad on the RQFP-240 must be soldered to a copper pour with multiple thermal vias to spread heat - idle current alone can exceed 200 mA in a typical 80% utilization design, and I/O switching currents add to this on each clock edge.

The 240-RQFP package has 0.5 mm pitch gull-wing leads on all four sides, requiring a 4-layer PCB with 0.2 mm-wide traces and solder-mask-defined pads to avoid tombstoning during reflow. Route all 5 V and GND traces on inner planes with stitching vias every 5 mm to control return-path inductance. Keep high-speed Flex 8000 I/O traces under 50 mm to avoid transmission-line effects - this is a 5 V part, not a 1.8 V LVDS part, so impedance matching is forgiving but skew accumulation across parallel buses still demands matched-length routing within ±2 mm.

Configuration memory in the EPF81500ARC240-4 is volatile SRAM, so the bitstream must be reloaded on every power-up from an external EPC configuration PROM or via JTAG. Forgetting this is the most common failure mode for engineers used to non-volatile CPLDs. Also note that the Flex 8000 JTAG TAP is separate from the IEEE 1149.1 boundary-scan on the user I/O - both must be enabled in the Quartus (or MAX+PLUS II) software for full test access. Finally, do not hot-plug the device with signals applied; the 5 V tolerant I/O was not designed for live insertion.

合规信息

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

Compliance status for the EPF81500ARC240-4 is not explicitly stated in the verified web data. The Flex 8000 family predates widespread RoHS adoption; non-RoHS variants are common. AEC-Q100 is not applicable to FPGAs in the traditional sense.

数据核验日期： 2026-09-12 ——数据由 XAIPART 元器件工程团队核验和整理

相关搜索

EPF81500ARC240-4 datasheet EPF81500ARC240-4 price Intel Flex 8000 FPGA Altera EPF81500ARC240-4 buy 16K gate FPGA 240-RQFP EPF81500ARC240-4 drop-in replacement EPF81500ARC240-4 vs EPF81500ARC240-2 Flex 8000 family FPGA obsolete 240-RQFP BQFP FPGA exposed pad 5V FPGA industrial PCI bridge EPF81500ARC240-4 lead time stock Altera Flex 8000 pinout 240-pin

相关元器件 & 术语

Intel Altera EPF81500ARC240-4 EPF81500ARC240-3 EPF81500ARC240-2 EPF81188ARC240-4 Flex 8000 FPGA Field Programmable Gate Array Programmable Logic CPLD CMOS RQFP-240 BQFP JTAG IEEE 1149.1 PCI bus 5 V supply Configuration PROM Quartus MAX+PLUS II Embedded Array Block Logic Element Industrial automation
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