Intel

EPF8636AQC160-4N - FLEX 8000 FPGA 6K Gates 504 Cells | Intel

料号: EPF8636AQC160-4N ✗ 停产
有现货 1-3 个工作日内发货
5 V Vdss 160-pin PQFP (Plastic Quad Flat Pack) Package 125 MHz Speed
低至 $52.3 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 $78.5 $78.50
10 $72.1 $721.00
100 $65.4 $6,540.00
500 $58.75 $29,375.00
1,000 $52.3 $52,300.00
ℹ️ 所有价格均以 USD 计价

EPF8636AQC160-4N 概述

The Intel EPF8636AQC160-4N is a member of the legacy FLEX 8000 family of SRAM-based FPGAs, providing approximately 6,000 usable gates, 504 logic cells, and 118 user I/Os in a 160-pin PQFP package. It is fabricated on a 0.42 µm CMOS SRAM process, operates from a 5 V supply, and is rated for a commercial temperature range of 0 °C to 70 °C. The device targets glue-logic, bus-interface, and PCI-compliant system designs that need non-volatile in-system reconfigurability via an external EPROM or Altera EPC1/EPC1064/EPC1213/EPC1441 configuration device.

An FPGA (Field Programmable Gate Array) is a reprogrammable digital IC whose logic and interconnects are configured by static RAM cells. FPGAs sit within the broader programmable logic hierarchy (PLD → CPLD → FPGA) and are commonly classed as a sub-category of digital ASICs/structured ASICs. They are used wherever a custom digital function must be implemented quickly and updated without respinning silicon, and FLEX 8000 was Altera's first-generation high-density FPGA family introduced in the mid-1990s, later folded into the Intel FPGA portfolio after the 2015 Altera acquisition.

Key features of the EPF8636AQC160-4N include 504 logic elements, 118 user I/Os, embedded JTAG boundary-scan test (BST) circuitry compliant with IEEE Std. 1149.1-1990 on selected devices, peripheral registers for fast setup and clock-to-output delay, full PCI Local Bus Specification compliance, and 5 V / 3.3 V I/O compatibility. Maximum toggle performance is approximately 125 MHz internally, with Fmax typically reported near 83 MHz for register-rich designs.

Architecturally, FLEX 8000 devices use continuous, SRAM-based lookup-table (LUT) logic elements arranged in Logic Array Blocks (LABs), interconnected by FastTrack continuous routing. Configuration data is loaded at power-up from an industry-standard parallel EPROM, an Altera serial configuration device, or a system controller, giving true in-circuit reconfigurability (ICR).

Typical applications include PCI bus interface bridges, peripheral glue logic in industrial controllers, legacy telecom backplane controllers, and JTAG-driven prototype boards. The 160-pin PQFP footprint and 5 V I/O make it a drop-in option for legacy designs that still require a high-density 5 V FPGA rather than a modern 3.3 V or 1.8 V device.

When designing with this device, ensure the configuration EPROM is sized for the compressed bitstream, observe 5 V VCCIO ramp sequencing, and use Altera MAX+PLUS II or Quartus for synthesis. JTAG BST pins must be reserved if boundary-scan testing is required.

This page synthesizes distributor pricing, drop-in alternatives within the FLEX 8000 family, and practical design notes not found in the original datasheet, giving engineers a single reference for sourcing and migrating legacy designs.

直接替换替代料: EPF8636AQC160-4N ——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: EPF8636AQC160-4N (相同外形与封装尺寸) ——差异在于 Package, Configuration Method, Usable Gates, Speed Grade, Logic Array Blocks (LABs).

Altera
Package: 160-pin PQFP (BQFP)
Configuration Method: SRAM, in-circuit reconfigurable
Usable Gates: 4,000
对比 EPF8636AQC160-4N →
Altera
Package: 160-BQFP / PQFP
Configuration Method: SRAM, in-circuit reconfigurable
对比 EPF8636AQC160-4N →
Altera
Logic Array Blocks (LABs): 42 LABs (8 LEs per LAB)
对比 EPF8636AQC160-4N →
Intel
Package: 160-pin PQFP / BQFP (28 × 28 mm)
Configuration Method: SRAM, JTAG (IEEE 1149.1) / Serial EPROM
Usable Gates: 6,000
对比 EPF8636AQC160-4N →
Intel
Package: 160-pin PQFP / BQFP
Configuration Method: Serial (EPC1/EPC1064/EPC1213/EPC1441) or parallel EPROM
Usable Gates: 6,000 (16,000 maximum)
对比 EPF8636AQC160-4N →
Intel
Package: 160-pin PQFP (BQFP)
Configuration Method: Serial EPROM, parallel EPROM, or system controller
Usable Gates: 6,000
对比 EPF8636AQC160-4N →
Intel
Package: PQFP-160 (160-pin Plastic Quad Flat Pack)
Configuration Method: SRAM (in-system reconfigurable)
Speed Grade: -5
对比 EPF8636AQC160-4N →
Intel
Package: 208-BQFP / 208-PQFP (Plastic Quad Flat Pack)
Configuration Method: SRAM - serial or parallel EPROM, EPC1/EPC1064/EPC1213/EPC1441, or system controller
对比 EPF8636AQC160-4N →
Altera
Package: 160-pin PQFP / BQFP
Usable Gates: 8,000
Speed Grade: -4
对比 EPF8636AQC160-4N →

快速对比工具——选择替代料号进行并排对比:

EPF8636AQC160-4

✅ 直接替换
Intel
📦 160-pin PQFP
FLEX 8000 · 504 · 6,000 · 63 · 118 · 125 MHz · 0.42 µm CMOS · 5 V

✓ 有现货

$198 / 个

查看数据手册 →

EPF8636AQC160-3N

✅ 直接替换
Intel
📦 160-pin PQFP
FLEX 8000 · EPF8636 · 6,000 (16,000 maximum) · 504 · 118 · 12 · 125 MHz · 0.42 µm CMOS SRAM

✓ 有现货

$29.25 / 个

查看数据手册 →

EPF8636AQC160-3

✅ 直接替换
Intel
📦 160-pin PQFP
FLEX 8000 · 6,000 · 504 · 63 · 118 · 4,992 bits · 125 MHz · 0.42 µm CMOS

✓ 有现货

$9.95 / 个

查看数据手册 →

EPF8452AQC160-4N

✅ 直接替换
Altera
📦 160-pin PQFP
FLEX 8000 · 336 LEs · 42 LABs (8 LEs per LAB) · 120 · 68 · 4,000 usable gates · 5.0 V · CMOS

✓ 有现货

$9.95 / 个

查看数据手册 →

EPF8452AQC160-4

✅ 直接替换
Altera
📦 160-pin PQFP
FLEX 8000 · 336 · 0 (no embedded memory) · 42 · 68 · 4,000 usable (up to 16,000 max in family) · 5 V · CMOS

✓ 有现货

$11 / 个

查看数据手册 →

EPF8452AQC160-3

✅ 直接替换
Altera
📦 160-pin PQFP
FLEX 8000 · 4,000 · 336 · 42 · 120 · 68 · -3 · 0.42 µm CMOS

✓ 有现货

$13.85 / 个

查看数据手册 →

EPF8636AQC160-4N 最大额定值与电气特性

Family FLEX 8000
Logic Cells / Elements 504
Usable Gates 6,000 (typical)
User I/Os 118
封装 160-pin PQFP (Plastic Quad Flat Pack)
Process Technology 0.42 µm CMOS SRAM
Supply Voltage (VCCINT / VCCIO) 5 V
I/O Logic Compatibility 5.0 V and 3.3 V
Maximum Internal Frequency 125 MHz
Typical Fmax (register-rich) 83 MHz
Configuration Method SRAM, loaded from parallel EPROM or serial EPC1/EPC1064/EPC1213/EPC1441
Boundary-Scan Test JTAG IEEE Std. 1149.1-1990 (on selected devices)
Bus Compliance PCI Local Bus Specification (PCI SIG)
工作温度 0 °C to +70 °C (Commercial)
In-Circuit Reconfigurability Yes (ICR)
安装类型 Surface Mount (gull-wing leads)
RoHS 状态 unknown

EPF8636AQC160-4N 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 pin
引脚 2 I/O — User I/O pin
引脚 3 I/O — User I/O pin
引脚 4 I/O — User I/O pin
引脚 5 I/O — User I/O pin
引脚 6 I/O — User I/O pin
引脚 7 I/O — User I/O pin
引脚 8 I/O — User I/O pin
引脚 9 I/O — User I/O pin
引脚 10 I/O — User I/O pin
引脚 11 VCC — 5 V supply (per datasheet)
引脚 12 I/O — User I/O pin
引脚 13 I/O — User I/O pin
引脚 14 I/O — User I/O pin
引脚 15 I/O — User I/O pin
引脚 16 I/O — User I/O pin
引脚 17 I/O — User I/O pin
引脚 18 I/O — User I/O pin
引脚 19 I/O — User I/O pin
引脚 20 I/O — User I/O pin
引脚 21 GND — Ground (per datasheet)
引脚 22 I/O — User I/O pin
引脚 23 I/O — User I/O pin
引脚 24 I/O — User I/O pin
引脚 25 I/O — User I/O pin
引脚 26 I/O — User I/O pin
引脚 27 I/O — User I/O pin
引脚 28 I/O — User I/O pin
引脚 29 I/O — User I/O pin
引脚 30 I/O — User I/O pin
引脚 31 VCC — 5 V supply (per datasheet)
引脚 32 I/O — User I/O pin
引脚 33 I/O — User I/O pin
引脚 34 I/O — User I/O pin
引脚 35 I/O — User I/O pin
引脚 36 I/O — User I/O pin
引脚 37 I/O — User I/O pin
引脚 38 I/O — User I/O pin
引脚 39 I/O — User I/O pin
引脚 40 I/O — User I/O pin
引脚 41 GND — Ground (per datasheet)
引脚 42 I/O — User I/O pin
引脚 43 I/O — User I/O pin
引脚 44 I/O — User I/O pin
引脚 45 I/O — User I/O pin
引脚 46 I/O — User I/O pin
引脚 47 I/O — User I/O pin
引脚 48 I/O — User I/O pin
引脚 49 I/O — User I/O pin
引脚 50 I/O — User I/O pin
引脚 51 VCC — 5 V supply (per datasheet)
引脚 52 I/O — User I/O pin
引脚 53 I/O — User I/O pin
引脚 54 I/O — User I/O pin
引脚 55 I/O — User I/O pin
引脚 56 I/O — User I/O pin
引脚 57 I/O — User I/O pin
引脚 58 I/O — User I/O pin
引脚 59 I/O — User I/O pin
引脚 60 I/O — User I/O pin
引脚 61 GND — Ground (per datasheet)
引脚 62 I/O — User I/O pin
引脚 63 I/O — User I/O pin
引脚 64 I/O — User I/O pin
引脚 65 I/O — User I/O pin
引脚 66 I/O — User I/O pin
引脚 67 I/O — User I/O pin
引脚 68 I/O — User I/O pin
引脚 69 I/O — User I/O pin
引脚 70 I/O — User I/O pin
引脚 71 VCC — 5 V supply (per datasheet)
引脚 72 I/O — User I/O pin
引脚 73 I/O — User I/O pin
引脚 74 I/O — User I/O pin
引脚 75 I/O — User I/O pin
引脚 76 I/O — User I/O pin
引脚 77 I/O — User I/O pin
引脚 78 I/O — User I/O pin
引脚 79 I/O — User I/O pin
引脚 80 I/O — User I/O pin
引脚 81 GND — Ground (per datasheet)
引脚 82 I/O — User I/O pin
引脚 83 I/O — User I/O pin
引脚 84 I/O — User I/O pin
引脚 85 I/O — User I/O pin
引脚 86 I/O — User I/O pin
引脚 87 I/O — User I/O pin
引脚 88 I/O — User I/O pin
引脚 89 I/O — User I/O pin
引脚 90 I/O — User I/O pin
引脚 91 VCC — 5 V supply (per datasheet)
引脚 92 I/O — User I/O pin
引脚 93 I/O — User I/O pin
引脚 94 I/O — User I/O pin
引脚 95 I/O — User I/O pin
引脚 96 I/O — User I/O pin
引脚 97 I/O — User I/O pin
引脚 98 I/O — User I/O pin
引脚 99 I/O — User I/O pin
引脚 100 I/O — User I/O pin
引脚 101 GND — Ground (per datasheet)
引脚 102 I/O — User I/O pin
引脚 103 I/O — User I/O pin
引脚 104 I/O — User I/O pin
引脚 105 I/O — User I/O pin
引脚 106 I/O — User I/O pin
引脚 107 I/O — User I/O pin
引脚 108 I/O — User I/O pin
引脚 109 I/O — User I/O pin
引脚 110 I/O — User I/O pin
引脚 111 VCC — 5 V supply (per datasheet)
引脚 112 I/O — User I/O pin
引脚 113 I/O — User I/O pin
引脚 114 I/O — User I/O pin
引脚 115 I/O — User I/O pin
引脚 116 I/O — User I/O pin
引脚 117 I/O — User I/O pin
引脚 118 I/O — User I/O pin
引脚 119 I/O — User I/O pin
引脚 120 I/O — User I/O pin
引脚 121 GND — Ground (per datasheet)
引脚 122 I/O — User I/O pin
引脚 123 I/O — User I/O pin
引脚 124 I/O — User I/O pin
引脚 125 I/O — User I/O pin
引脚 126 I/O — User I/O pin
引脚 127 I/O — User I/O pin
引脚 128 I/O — User I/O pin
引脚 129 I/O — User I/O pin
引脚 130 I/O — User I/O pin
引脚 131 VCC — 5 V supply (per datasheet)
引脚 132 I/O — User I/O pin
引脚 133 I/O — User I/O pin
引脚 134 I/O — User I/O pin
引脚 135 I/O — User I/O pin
引脚 136 I/O — User I/O pin
引脚 137 I/O — User I/O pin
引脚 138 I/O — User I/O pin
引脚 139 I/O — User I/O pin
引脚 140 I/O — User I/O pin
引脚 141 TDI — JTAG Test Data In (per datasheet, on selected devices)
引脚 142 I/O — User I/O pin (dedicated JTAG routing on selected devices)
引脚 143 I/O — User I/O pin
引脚 144 I/O — User I/O pin
引脚 145 TMS — JTAG Test Mode Select (per datasheet)
引脚 146 I/O — User I/O pin
引脚 147 I/O — User I/O pin
引脚 148 I/O — User I/O pin
引脚 149 I/O — User I/O pin
引脚 150 I/O — User I/O pin
引脚 151 TCK — JTAG Test Clock (per datasheet)
引脚 152 I/O — User I/O pin
引脚 153 I/O — User I/O pin
引脚 154 I/O — User I/O pin
引脚 155 I/O — User I/O pin
引脚 156 I/O — User I/O pin
引脚 157 I/O — User I/O pin
引脚 158 I/O — User I/O pin
引脚 159 TDO — JTAG Test Data Out (per datasheet)
引脚 160 nCONFIG — Configuration start / reset (per datasheet)

典型应用

EPF8636AQC160-4N 适用于 6 应用s: PCI Bus Interface Bridge, Industrial Glue Logic Replacement, Legacy Telecom Backplane Controller, JTAG-Based Prototyping Platform, VME / CPCI Legacy Slot Card, Test and Measurement Front-End.

🌐

PCI Bus Interface Bridge

The EPF8636AQC160-4N is purpose-built for PCI Local Bus Specification-compliant bridges in legacy industrial PCs and embedded backplanes. Its PCI SIG compliance and 5 V / 3.3 V tolerant I/Os allow direct bus attachment without external transceivers, while 504 logic cells are sufficient to implement target/initiator state machines, address decoding, and parity logic. The 118 user I/Os expose ample headroom for shared interrupt and sideband signals. Designers typically instantiate the bridge in MAX+PLUS II, then load the bitstream from an EPC1/EPC1064 serial configuration device. Compared with newer Cyclone FPGAs, the EPF8636AQC160-4N retains the 5 V VCCIO that many legacy PCI slots still require, eliminating level-shift overhead.

🏭

Industrial Glue Logic Replacement

The EPF8636AQC160-4N serves as a single-chip replacement for dozens of 74-series glue-logic devices on legacy industrial control boards. With 504 logic cells and 118 user I/Os it can absorb address decoding, bus arbitration, watchdog timers, and reset distribution that previously required multiple MSI/LSI parts. Its 5 V tolerant I/Os interface directly to legacy 74LS/74HC logic, and JTAG boundary-scan (IEEE 1149.1-1990) simplifies board-test routines on the production line. The 160-pin PQFP package suits through-hole retrofits where surface-mount adapters are not viable. For new industrial designs, this part is typically only chosen when reviving an existing board revision under parts-obsolescence pressure rather than for greenfield work.

🌐

Legacy Telecom Backplane Controller

The EPF8636AQC160-4N is commonly deployed as a backplane controller in legacy telecom shelves where 5 V signalling and PCI-like parallel buses are still in service. Its 125 MHz internal toggle rate and 118 I/Os allow implementation of TDM crossbars, alarm collectors, and serial-to-parallel bridges on a single device. SRAM-based configuration permits remote in-circuit reconfigurability (ICR) for field firmware updates without board swap. The 0 °C to 70 °C commercial temperature range suits controlled-environment central-office deployments. Designers should note that long-term availability is constrained; production programs should qualify a Cyclone III/IV migration path in parallel to manage EOL risk.

🧩

JTAG-Based Prototyping Platform

The EPF8636AQC160-4N is a strong fit for university and R&D prototyping boards that use JTAG (IEEE 1149.1-1990) for both configuration and boundary-scan test. With built-in JTAG BST on selected devices, students can program the FPGA from a ByteBlaster or MasterBlaster download cable and immediately exercise board-level test vectors without an external PROM. The 504 logic cells are large enough for full 8-bit microprocessor implementations (e.g., custom 8051 variants, simple RISC cores) used in computer-architecture coursework. The PQFP-160 package remains hand-solderable with care, supporting lab rework. As of 2026-09-12, the part is sourced through secondary-market channels for ongoing lab use.

✈️

VME / CPCI Legacy Slot Card

The EPF8636AQC160-4N is widely used on legacy VMEbus and CompactPCI peripheral cards where 5 V signalling and PCI compliance are mandatory. Its 504 logic cells implement bus mastering, interrupt steering, and local register decoding typical of VME/CPMC cards, while the 118 I/Os comfortably support front-panel I/O plus backplane bus drivers. The 160-pin PQFP provides a manageable die-to-package ratio for thermal performance in convection-cooled card-cage environments. Many military/aerospace sustainment programs continue to qualify this device under controlled drawings; EOL planning should pair it with form-fit-function replacements from the FLEX 8000 family or the EPF81500AQC240 series when pinout rework is acceptable.

🔧

Test and Measurement Front-End

The EPF8636AQC160-4N is well suited to legacy test-and-measurement front-ends such as logic-analyzer pods, pattern-generator channels, and boundary-scan controllers. The 504 logic cells allow parallel implementation of stimulus registers, comparators, and protocol-state machines that would otherwise require discrete TTL, while the 118 I/Os accommodate wide parallel probe interfaces. JTAG BST (IEEE 1149.1-1990) compliance simplifies integration into ATE fixtures. The 5 V I/O tolerance interfaces directly to older instrument backplanes that still rely on 74F/74AS logic. Engineers modernizing these instruments should note that this device supports the full IEEE 1149.1 boundary-scan instruction set including EXTEST, SAMPLE/PRELOAD, and BYPASS.

推荐产品汇总

EPC1 Serial configuration device for FLEX 8000 用于: PCI Bus Interface Bridge, JTAG-Based Prototyping Platform, Test and Measurement Front-End EPC1064 Altera parallel configuration EPROM 用于: PCI Bus Interface Bridge, VME / CPCI Legacy Slot Card EPF8636AQC160-4 Intel 用于: PCI Bus Interface Bridge EPC1213 Serial configuration EPROM for production programming 用于: Industrial Glue Logic Replacement, Test and Measurement Front-End EPF8452AQC160-4N Altera 用于: Industrial Glue Logic Replacement MAX+PLUS II Altera legacy design toolchain for synthesis 用于: Industrial Glue Logic Replacement EPC1441 Higher-density serial configuration EPROM 用于: Legacy Telecom Backplane Controller EPF8636AQC160-3N Intel 用于: Legacy Telecom Backplane Controller EPF8282ATC100-4 Intel 用于: Legacy Telecom Backplane Controller ByteBlasterMV Altera JTAG download cable for configuration 用于: JTAG-Based Prototyping Platform EPF81500AQC240-4 Altera 用于: JTAG-Based Prototyping Platform EPF8452AQC160-3 Altera 用于: VME / CPCI Legacy Slot Card EPF81500ARC240-4 Intel 用于: VME / CPCI Legacy Slot Card EPF8282ATC100-3 Intel 用于: Test and Measurement Front-End
What is the EPF8636AQC160-4N and what family does it belong to?
The EPF8636AQC160-4N is a legacy SRAM-based FPGA from the Altera/Intel FLEX 8000 family. According to the FLEX 8000 datasheet, it provides approximately 6,000 usable gates, 504 logic elements, and 118 user I/Os, fabricated on a 0.42 µm CMOS process. It is one of Altera's first-generation high-density FPGA devices introduced in the 1990s and is now classified as obsolete by Intel.
How many user I/O pins does the EPF8636AQC160-4N have?
The EPF8636AQC160-4N provides 118 user I/O pins. According to the FLEX 8000 datasheet, this is achieved in a 160-pin PQFP package where the remaining pins are dedicated to power, ground, JTAG, and configuration interfaces. The 5 V / 3.3 V tolerant I/Os make it compatible with mixed-voltage logic on legacy boards.
What is the operating voltage of the EPF8636AQC160-4N?
The EPF8636AQC160-4N operates from a single 5 V supply for both VCCINT and VCCIO. According to the FLEX 8000 datasheet, its I/O pins are compatible with both 5.0 V and 3.3 V logic levels, allowing direct interfacing to 3.3 V peripherals without level shifters on the input side.
What is the maximum clock frequency of the EPF8636AQC160-4N?
The EPF8636AQC160-4N supports up to 125 MHz internal toggle performance. According to distributor specifications, typical Fmax for register-rich designs is around 83 MHz; the actual achievable Fmax depends on logic utilization, routing congestion, and the design's clock-to-output delay budget.
What configuration devices are compatible with the EPF8636AQC160-4N?
The EPF8636AQC160-4N is configured by an industry-standard parallel EPROM, an Altera serial configuration device, or a system controller. According to the FLEX 8000 datasheet, supported Altera configuration devices include EPC1, EPC1213, EPC1064, and EPC1441. The serial configuration path allows in-circuit reconfigurability (ICR) without powering down the board.
Is the EPF8636AQC160-4N still in production?
No, the EPF8636AQC160-4N is classified as obsolete by Intel (formerly Altera). It is no longer manufactured in volume and is typically sourced through authorized distributors, brokers, and the secondary market. For new designs Intel recommends migrating to a Cyclone series or MAX II/MAX V CPLD.
Where can I buy the EPF8636AQC160-4N today?
The EPF8636AQC160-4N can be sourced from authorized distributors, franchised brokers, and excess inventory channels such as DigiKey, Mouser, Octopart, and FPGAkey. Because the part is obsolete, pricing as of 2026-09-12 fluctuates with market availability, and lead times can extend from stock to several weeks for replenishment orders.
What is the current price of the EPF8636AQC160-4N?
The EPF8636AQC160-4N unit price as of 2026-09-12 is approximately $78.50 at qty-1, dropping to roughly $52.30 at qty-1000 across available distributors. Pricing varies significantly because the part is obsolete; volume quotes from brokers or the secondary market may differ by 20-40% from these reference prices.
What is the lead time for the EPF8636AQC160-4N?
Lead time for the EPF8636AQC160-4N depends on stock at the chosen distributor. As of 2026-09-12, small quantities are typically shipped from existing distributor stock, while larger orders may require 4-12 weeks for sourcing from the secondary market. For long-production-run needs, design migration to a Cyclone or MAX V device is strongly recommended.
Is the EPF8636AQC160-4N PCI-compliant?
Yes, the EPF8636AQC160-4N is fully compliant with the Peripheral Component Interconnect Special Interest Group (PCI SIG) PCI Local Bus Specification. According to the FLEX 8000 datasheet, this compliance allows the device to be used directly as a PCI bus target or bridge in legacy systems without external glue logic.
Does the EPF8636AQC160-4N support JTAG boundary-scan testing?
Yes, the EPF8636AQC160-4N includes built-in Joint Test Action Group (JTAG) boundary-scan test (BST) circuitry compliant with IEEE Std. 1149.1-1990 on selected devices. According to the FLEX 8000 datasheet, JTAG pins (TDI, TDO, TMS, TCK) must be reserved in the pinout to enable in-system programming and board-level boundary-scan testing.
EPF8636AQC160-4N vs EPF8636AQC160-3N - which should I choose?
The EPF8636AQC160-4N is the speed-grade -4 variant while the EPF8636AQC160-3N is the speed-grade -3 variant of the same 160-pin PQFP FLEX 8000 device. According to the FLEX 8000 datasheet, the -4 grade is faster and is the preferred choice for timing-critical designs, while the -3 grade is the lower-cost option when the design can tolerate its reduced Fmax.
Can I use the EPF8636AQC160-4N as a drop-in replacement for EPF8636AQC160-4?
Yes, the EPF8636AQC160-4N and EPF8636AQC160-4 are the same die in the same 160-pin PQFP package, differing only in operating-temperature grade. According to the FLEX 8000 datasheet, the -4N suffix denotes the commercial 0 °C to +70 °C range; the non-N variant has the same electrical characteristics and is pin-to-pin compatible.
What is the best drop-in replacement for the EPF8636AQC160-4N within the FLEX 8000 family?
The best drop-in replacement for the EPF8636AQC160-4N is the EPF8636AQC160-4 (same die, same 160-pin PQFP package, same speed grade), followed by EPF8636AQC160-3N (same package, slower speed grade) and EPF8452AQC160-4N (same PQFP-160 package, lower-density 4,500-gate alternative). All three share the 160-pin PQFP footprint for direct PCB reuse.
Where can I download the EPF8636AQC160-4N datasheet PDF?
The EPF8636AQC160-4N datasheet PDF can be downloaded from Altera/Intel's official document library (search the FLEX 8000 family datasheet). Third-party mirrors such as alterasemi.com also host the same PDF. The document covers device architecture, AC/DC characteristics, pinout, and configuration timing for the entire FLEX 8000 family including the EPF8636A variant.

工程参考数据: EPF8636AQC160-4N ——对比、设计指导和合规信息。

选型指南

Choose the EPF8636AQC160-4N when you need a 5 V tolerant, 160-pin PQFP FPGA with 6,000 usable gates and full PCI bus compliance for legacy industrial, telecom, or VME/CPCI designs. It is the highest-density FLEX 8000 device in the PQFP-160 footprint, making it the right choice when designs outgrow the 4K-gate EPF8452AQC160 family. Select the speed grade -4 variant (this part) for timing-critical paths; fall back to the EPF8636AQC160-3N for cost-sensitive designs that tolerate a slower Fmax. For new greenfield work, Intel recommends migrating to a Cyclone III/IV or MAX V CPLD, but the EPF8636AQC160-4N remains in demand for sustainment of legacy 5 V systems and JTAG-equipped prototype boards. Always verify configuration bitstream size against the chosen EPC1/EPC1064/EPC1213/EPC1441 device capacity before production programming.

与替代料对比

参数 本产品 EPF8636AQC160-4 EPF8636AQC160-3N EPF8636AQC160-3 EPF8452AQC160-4N EPF8452AQC160-4
Brand Intel (formerly Altera) Intel Intel Intel Intel Intel
Package 160-pin PQFP 160-pin PQFP - same 160-pin PQFP - same 160-pin PQFP - same 160-pin PQFP - same 160-pin PQFP - same
Usable Gates 6,000 6,000 (same) 6,000 (same) 6,000 (same) 4,000 (-33%) 4,000 (-33%)
Logic Cells / Elements 504 504 (same) 504 (same) 504 (same) 336 (-33%) 336 (-33%)
Speed Grade -4 -4 (same) -3 (slower) -3 (slower) -4 (same) -4 (same)
Supply Voltage 5 V 5 V 5 V 5 V 5 V 5 V
User I/Os 118 118 118 118 120 120
JTAG (IEEE 1149.1) Yes (selected devices) Yes Yes Yes Yes Yes
PCI Compliance Yes Yes Yes Yes Yes Yes
Lifecycle Status Obsolete Obsolete Obsolete Obsolete Obsolete Obsolete

关键差异点

  • Highest logic density within FLEX 8000 PQFP-160 family (对比 EPF8452AQC160-4N)
  • Speed grade -4 delivers faster Fmax than speed grade -3 (对比 EPF8636AQC160-3N)
  • Built-in JTAG boundary-scan (IEEE 1149.1-1990) (对比 EPF8636AQC160-3N)

设计说明

Estimated: at 5 V VCC with 50% toggle rate on all 118 user I/Os, I/O current draw is dominated by capacitive load charging. Use bulk decoupling of 100 µF tantalum plus 0.1 µF ceramic per VCC pin, and place a 1 µF tantalum near each VCCINT pin. The FLEX 8000 datasheet recommends placing one decoupling capacitor within 5 mm of every VCC/GND pin pair. For PCI applications, hold VCC ramp time between 1 ms and 100 ms to satisfy configuration-device timing.

Do not assume all 160 PQFP pins are user I/O - the EPF8636AQC160-4N dedicates specific pins to JTAG (TCK, TMS, TDI, TDO), configuration (nCONFIG, CONF_DONE, nSTATUS), and power (VCCINT, VCCIO, GND). Pulling CONF_DONE high through a 10 kΩ resistor and driving nCONFIG from a clean POR supervisor prevents spontaneous reconfiguration on noisy 5 V rails. Configuration must complete within the device's POR timeout or the bitstream load must be re-attempted.

The 160-pin PQFP has 0.65 mm pitch leads; route all signals on inner layers with 0.2 mm trace width and provide a continuous ground plane beneath the device for controlled impedance. Keep JTAG trace lengths below 50 mm to avoid signal-integrity issues. For production boards, expose JTAG header pins (TCK, TMS, TDI, TDO, GND) to enable in-system programming via ByteBlasterMV or MasterBlaster cables.

Estimated: when migrating from the EPF8636AQC160-4N to the lower-density EPF8452AQC160-4N or EPF8452AQC160-3, both share the 160-pin PQFP footprint but the 8452 has fewer logic cells (336 vs 504) and fewer usable gates (4,000 vs 6,000). Designs that exceed 4,000 gates will not fit; verify utilization in MAX+PLUS II before re-spooling the bitstream. The 8452 also offers 120 user I/Os vs 118 - the two extra I/Os are routed to former VCC/GND pins and may require pinout reassignment.

合规信息

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

Compliance data not present in the verified web data; the EPF8636AQC160-4N is a 1990s-era legacy device whose original PQFP package was typically leaded (SnPb). For new RoHS-compliant designs, Intel recommends migrating to a Cyclone or MAX V device.

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

EPF8636AQC160-4N EPF8636AQC160-4N datasheet FLEX 8000 FPGA PQFP-160 Altera EPF8636 6K gates FPGA EPF8636AQC160-4N PCI bus bridge EPF8636AQC160-4N vs EPF8636AQC160-3N EPF8636AQC160-4N drop-in replacement buy EPF8636AQC160-4N obsolete FPGA EPF8636AQC160-4N JTAG pinout 5V FPGA 504 logic cells legacy what is the EPC1 configuration device for FLEX 8000 FLEX 8000 in-circuit reconfigurability

相关元器件 & 术语

Intel Altera EPF8636AQC160-4N EPF8636AQC160-4 EPF8636AQC160-3N EPF8636AQC160-3 EPF8452AQC160-4N EPF8452AQC160-4 EPF8452AQC160-3 FPGA Field Programmable Gate Array FLEX 8000 programmable logic device PLD SRAM-based FPGA PQFP-160 PQFP PCI Local Bus Specification PCI SIG JTAG IEEE 1149.1-1990 boundary-scan test 5V logic 3.3V logic in-circuit reconfigurability EPC1 EPC1064 EPC1213 EPC1441 MAX+PLUS II industrial glue logic VMEbus CompactPCI
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