Intel

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

MPN: EPF8636AQC160-4N ✗ סוף ייצור
5 V Vdss 160-pin PQFP (Plastic Quad Flat Pack) Package 125 MHz Speed
כמות הזמנה מינימלית: 1 |

EPF8636AQC160-4N סקירה

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.

חלופות תחליף ישיר עבור EPF8636AQC160-4N — אותו מארז, תואם פין-לפין. חלקים במארז שונה הדורשים עיבוד מחדש של ה-PCB אינם נכללים.

וריאנטים בסדרה זו

דגמים מאותה סדרה התואמים Drop-in עם EPF8636AQC160-4N (אותו גורם צורה וטביעת רגל) — שונים ב 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
השווה עם EPF8636AQC160-4N →
Altera
Package: 160-BQFP / PQFP
Configuration Method: SRAM, in-circuit reconfigurable
השווה עם EPF8636AQC160-4N →
Altera
Logic Array Blocks (LABs): 42 LABs (8 LEs per LAB)
השווה עם EPF8636AQC160-4N →
Intel
Package: 160-pin PQFP / BQFP (28 × 28 mm)
Configuration Method: SRAM, JTAG (IEEE 1149.1) / Serial EPROM
Usable Gates: 6,000
השווה עם 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)
השווה עם EPF8636AQC160-4N →
Intel
Package: 160-pin PQFP (BQFP)
Configuration Method: Serial EPROM, parallel EPROM, or system controller
Usable Gates: 6,000
השווה עם EPF8636AQC160-4N →
Intel
Package: PQFP-160 (160-pin Plastic Quad Flat Pack)
Configuration Method: SRAM (in-system reconfigurable)
Speed Grade: -5
השווה עם 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
השווה עם EPF8636AQC160-4N →
Altera
Package: 160-pin PQFP / BQFP
Usable Gates: 8,000
Speed Grade: -4
השווה עם EPF8636AQC160-4N →

EPF8636AQC160-4

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

צור קשר לקבלת מחיר

הצג גיליון נתונים ←

EPF8636AQC160-3N

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

צור קשר לקבלת מחיר

הצג גיליון נתונים ←

EPF8636AQC160-3

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

צור קשר לקבלת מחיר

הצג גיליון נתונים ←

EPF8452AQC160-4N

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

צור קשר לקבלת מחיר

הצג גיליון נתונים ←

EPF8452AQC160-4

✅ Drop-In
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

צור קשר לקבלת מחיר

הצג גיליון נתונים ←

EPF8452AQC160-3

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

צור קשר לקבלת מחיר

הצג גיליון נתונים ←

EPF8636AQC160-4N דירוגים מרביים ומאפיינים חשמליים

Family FLEX 8000
Logic Cells / Elements 504
Usable Gates 6,000 (typical)
User I/Os 118
מארז 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)
טמפרטורת פעולה 0 °C to +70 °C (Commercial)
In-Circuit Reconfigurability Yes (ICR)
סוג הרכבה Surface Mount (gull-wing leads)
סטטוס RoHS unknown

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

יישומים טיפוסיים

EPF8636AQC160-4N מתאים עבור 6 יישוםs: 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.

סיכום מוצרים מומלצים

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

נתוני עזר הנדסיים עבור EPF8636AQC160-4N — השוואה, הנחיות תכנון ומידע על תאימות.

מדריך בחירה

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.

השוואה עם חלופות

פרמטר מוצר זה 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

מבדילים עיקריים

  • Highest logic density within FLEX 8000 PQFP-160 family (לעומתEPF8452AQC160-4N)
  • Speed grade -4 delivers faster Fmax than speed grade -3 (לעומתEPF8636AQC160-3N)
  • Built-in JTAG boundary-scan (IEEE 1149.1-1990) (לעומתEPF8636AQC160-3N)

הערות תכנון

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.

מידע על תאימות

RoHS
Unknown
REACH
Unknown
AEC-Q100
Not Applicable
נטול עופרת
Unknown
נטול הלוגנים
Unknown
מינרלים של סכסוך
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.

הנתונים אומתו בתאריך: 2026-09-12 — נתונים אומתו ונערכו על ידי צוות הנדסת הרכיבים של XAIPART

חיפושים קשורים

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

רכיבים ומונחים קשורים

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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