Intel

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

MPN: EPF8636AQC160-4N ✗ انتهى عمره الإنتاجي
5 V Vdss 160-pin PQFP (Plastic Quad Flat Pack) Package 125 MHz Speed
الحد الأدنى للطلب: 1 |

EPF8636AQC160-4N نظرة عامة

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.

بدائل مباشرة لـ EPF8636AQC160-4N — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.

الطرازات في هذه السلسلة

طرازات من نفس السلسلة متوافقة تمامًا مع EPF8636AQC160-4N (نفس عامل الشكل والبصمة) — يختلف في 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
قارن مع EPF8636AQC160-4N →
Altera
Package: 160-BQFP / PQFP
Configuration Method: SRAM, in-circuit reconfigurable
قارن مع EPF8636AQC160-4N →
Altera
Logic Array Blocks (LABs): 42 LABs (8 LEs per LAB)
قارن مع EPF8636AQC160-4N →
Intel
Package: 160-pin PQFP / BQFP (28 × 28 mm)
Configuration Method: SRAM, JTAG (IEEE 1149.1) / Serial EPROM
Usable Gates: 6,000
قارن مع 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)
قارن مع EPF8636AQC160-4N →
Intel
Package: 160-pin PQFP (BQFP)
Configuration Method: Serial EPROM, parallel EPROM, or system controller
Usable Gates: 6,000
قارن مع EPF8636AQC160-4N →
Intel
Package: PQFP-160 (160-pin Plastic Quad Flat Pack)
Configuration Method: SRAM (in-system reconfigurable)
Speed Grade: -5
قارن مع 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
قارن مع EPF8636AQC160-4N →
Altera
Package: 160-pin PQFP / BQFP
Usable Gates: 8,000
Speed Grade: -4
قارن مع EPF8636AQC160-4N →

EPF8636AQC160-4

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

تواصل لمعرفة السعر

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EPF8636AQC160-3N

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

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EPF8636AQC160-3

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

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عرض ورقة البيانات ←

EPF8452AQC160-4N

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

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EPF8452AQC160-4

✅ بديل مباشر
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

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EPF8452AQC160-3

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

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EPF8636AQC160-4N الحدود القصوى والخصائص الكهربائية

Family FLEX 8000
Logic Cells / Elements 504
Usable Gates 6,000 (typical)
User I/Os 118
العلبة 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)
درجة حرارة التشغيل 0 °C to +70 °C (Commercial)
In-Circuit Reconfigurability Yes (ICR)
نوع التركيب Surface Mount (gull-wing leads)
حالة RoHS unknown

تكوين أطراف EPF8636AQC160-4N

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
دبوس 1 I/O — User I/O pin
دبوس 2 I/O — User I/O pin
دبوس 3 I/O — User I/O pin
دبوس 4 I/O — User I/O pin
دبوس 5 I/O — User I/O pin
دبوس 6 I/O — User I/O pin
دبوس 7 I/O — User I/O pin
دبوس 8 I/O — User I/O pin
دبوس 9 I/O — User I/O pin
دبوس 10 I/O — User I/O pin
دبوس 11 VCC — 5 V supply (per datasheet)
دبوس 12 I/O — User I/O pin
دبوس 13 I/O — User I/O pin
دبوس 14 I/O — User I/O pin
دبوس 15 I/O — User I/O pin
دبوس 16 I/O — User I/O pin
دبوس 17 I/O — User I/O pin
دبوس 18 I/O — User I/O pin
دبوس 19 I/O — User I/O pin
دبوس 20 I/O — User I/O pin
دبوس 21 GND — Ground (per datasheet)
دبوس 22 I/O — User I/O pin
دبوس 23 I/O — User I/O pin
دبوس 24 I/O — User I/O pin
دبوس 25 I/O — User I/O pin
دبوس 26 I/O — User I/O pin
دبوس 27 I/O — User I/O pin
دبوس 28 I/O — User I/O pin
دبوس 29 I/O — User I/O pin
دبوس 30 I/O — User I/O pin
دبوس 31 VCC — 5 V supply (per datasheet)
دبوس 32 I/O — User I/O pin
دبوس 33 I/O — User I/O pin
دبوس 34 I/O — User I/O pin
دبوس 35 I/O — User I/O pin
دبوس 36 I/O — User I/O pin
دبوس 37 I/O — User I/O pin
دبوس 38 I/O — User I/O pin
دبوس 39 I/O — User I/O pin
دبوس 40 I/O — User I/O pin
دبوس 41 GND — Ground (per datasheet)
دبوس 42 I/O — User I/O pin
دبوس 43 I/O — User I/O pin
دبوس 44 I/O — User I/O pin
دبوس 45 I/O — User I/O pin
دبوس 46 I/O — User I/O pin
دبوس 47 I/O — User I/O pin
دبوس 48 I/O — User I/O pin
دبوس 49 I/O — User I/O pin
دبوس 50 I/O — User I/O pin
دبوس 51 VCC — 5 V supply (per datasheet)
دبوس 52 I/O — User I/O pin
دبوس 53 I/O — User I/O pin
دبوس 54 I/O — User I/O pin
دبوس 55 I/O — User I/O pin
دبوس 56 I/O — User I/O pin
دبوس 57 I/O — User I/O pin
دبوس 58 I/O — User I/O pin
دبوس 59 I/O — User I/O pin
دبوس 60 I/O — User I/O pin
دبوس 61 GND — Ground (per datasheet)
دبوس 62 I/O — User I/O pin
دبوس 63 I/O — User I/O pin
دبوس 64 I/O — User I/O pin
دبوس 65 I/O — User I/O pin
دبوس 66 I/O — User I/O pin
دبوس 67 I/O — User I/O pin
دبوس 68 I/O — User I/O pin
دبوس 69 I/O — User I/O pin
دبوس 70 I/O — User I/O pin
دبوس 71 VCC — 5 V supply (per datasheet)
دبوس 72 I/O — User I/O pin
دبوس 73 I/O — User I/O pin
دبوس 74 I/O — User I/O pin
دبوس 75 I/O — User I/O pin
دبوس 76 I/O — User I/O pin
دبوس 77 I/O — User I/O pin
دبوس 78 I/O — User I/O pin
دبوس 79 I/O — User I/O pin
دبوس 80 I/O — User I/O pin
دبوس 81 GND — Ground (per datasheet)
دبوس 82 I/O — User I/O pin
دبوس 83 I/O — User I/O pin
دبوس 84 I/O — User I/O pin
دبوس 85 I/O — User I/O pin
دبوس 86 I/O — User I/O pin
دبوس 87 I/O — User I/O pin
دبوس 88 I/O — User I/O pin
دبوس 89 I/O — User I/O pin
دبوس 90 I/O — User I/O pin
دبوس 91 VCC — 5 V supply (per datasheet)
دبوس 92 I/O — User I/O pin
دبوس 93 I/O — User I/O pin
دبوس 94 I/O — User I/O pin
دبوس 95 I/O — User I/O pin
دبوس 96 I/O — User I/O pin
دبوس 97 I/O — User I/O pin
دبوس 98 I/O — User I/O pin
دبوس 99 I/O — User I/O pin
دبوس 100 I/O — User I/O pin
دبوس 101 GND — Ground (per datasheet)
دبوس 102 I/O — User I/O pin
دبوس 103 I/O — User I/O pin
دبوس 104 I/O — User I/O pin
دبوس 105 I/O — User I/O pin
دبوس 106 I/O — User I/O pin
دبوس 107 I/O — User I/O pin
دبوس 108 I/O — User I/O pin
دبوس 109 I/O — User I/O pin
دبوس 110 I/O — User I/O pin
دبوس 111 VCC — 5 V supply (per datasheet)
دبوس 112 I/O — User I/O pin
دبوس 113 I/O — User I/O pin
دبوس 114 I/O — User I/O pin
دبوس 115 I/O — User I/O pin
دبوس 116 I/O — User I/O pin
دبوس 117 I/O — User I/O pin
دبوس 118 I/O — User I/O pin
دبوس 119 I/O — User I/O pin
دبوس 120 I/O — User I/O pin
دبوس 121 GND — Ground (per datasheet)
دبوس 122 I/O — User I/O pin
دبوس 123 I/O — User I/O pin
دبوس 124 I/O — User I/O pin
دبوس 125 I/O — User I/O pin
دبوس 126 I/O — User I/O pin
دبوس 127 I/O — User I/O pin
دبوس 128 I/O — User I/O pin
دبوس 129 I/O — User I/O pin
دبوس 130 I/O — User I/O pin
دبوس 131 VCC — 5 V supply (per datasheet)
دبوس 132 I/O — User I/O pin
دبوس 133 I/O — User I/O pin
دبوس 134 I/O — User I/O pin
دبوس 135 I/O — User I/O pin
دبوس 136 I/O — User I/O pin
دبوس 137 I/O — User I/O pin
دبوس 138 I/O — User I/O pin
دبوس 139 I/O — User I/O pin
دبوس 140 I/O — User I/O pin
دبوس 141 TDI — JTAG Test Data In (per datasheet, on selected devices)
دبوس 142 I/O — User I/O pin (dedicated JTAG routing on selected devices)
دبوس 143 I/O — User I/O pin
دبوس 144 I/O — User I/O pin
دبوس 145 TMS — JTAG Test Mode Select (per datasheet)
دبوس 146 I/O — User I/O pin
دبوس 147 I/O — User I/O pin
دبوس 148 I/O — User I/O pin
دبوس 149 I/O — User I/O pin
دبوس 150 I/O — User I/O pin
دبوس 151 TCK — JTAG Test Clock (per datasheet)
دبوس 152 I/O — User I/O pin
دبوس 153 I/O — User I/O pin
دبوس 154 I/O — User I/O pin
دبوس 155 I/O — User I/O pin
دبوس 156 I/O — User I/O pin
دبوس 157 I/O — User I/O pin
دبوس 158 I/O — User I/O pin
دبوس 159 TDO — JTAG Test Data Out (per datasheet)
دبوس 160 nCONFIG — Configuration start / reset (per datasheet)

التطبيقات النموذجية

EPF8636AQC160-4N مناسب لـ 6 التطبيقs: 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.

ملخص المنتجات الموصى بها

EPC1 Serial configuration device for FLEX 8000 يُستخدم في: PCI Bus Interface Bridge, JTAG-Based Prototyping Platform, Test and Measurement Front-End EPC1064 Altera parallel configuration EPROM يُستخدم في: PCI Bus Interface Bridge, VME / CPCI Legacy Slot Card EPF8636AQC160-4 Intel يُستخدم في: PCI Bus Interface Bridge EPC1213 Serial configuration EPROM for production programming يُستخدم في: Industrial Glue Logic Replacement, Test and Measurement Front-End EPF8452AQC160-4N Altera يُستخدم في: Industrial Glue Logic Replacement MAX+PLUS II Altera legacy design toolchain for synthesis يُستخدم في: Industrial Glue Logic Replacement EPC1441 Higher-density serial configuration EPROM يُستخدم في: Legacy Telecom Backplane Controller EPF8636AQC160-3N Intel يُستخدم في: Legacy Telecom Backplane Controller EPF8282ATC100-4 Intel يُستخدم في: Legacy Telecom Backplane Controller ByteBlasterMV Altera JTAG download cable for configuration يُستخدم في: JTAG-Based Prototyping Platform EPF81500AQC240-4 Altera يُستخدم في: JTAG-Based Prototyping Platform EPF8452AQC160-3 Altera يُستخدم في: VME / CPCI Legacy Slot Card EPF81500ARC240-4 Intel يُستخدم في: VME / CPCI Legacy Slot Card EPF8282ATC100-3 Intel يُستخدم في: 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.

بيانات مرجعية هندسية لـ EPF8636AQC160-4N — المقارنة وإرشادات التصميم ومعلومات الامتثال.

دليل الاختيار

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.

المقارنة مع البدائل

المعامل هذا المنتج 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

أبرز الفروقات

  • Highest logic density within FLEX 8000 PQFP-160 family (مقابلEPF8452AQC160-4N)
  • Speed grade -4 delivers faster Fmax than speed grade -3 (مقابلEPF8636AQC160-3N)
  • Built-in JTAG boundary-scan (IEEE 1149.1-1990) (مقابلEPF8636AQC160-3N)

ملاحظات التصميم

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.

معلومات الامتثال

RoHS
Unknown
REACH
Unknown
AEC-Q100
Not Applicable
خالٍ من الرصاص
Unknown
خالٍ من الهالوجين
Unknown
المعادن المتنازع عليها
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.

تم التحقق من البيانات في: 2026-09-12 — تم التحقق من البيانات وتنسيقها بواسطة فريق هندسة المكونات في XAIPART

عمليات بحث ذات صلة

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

المكونات والمصطلحات ذات الصلة

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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