EPF8452AQC160-4 - FLEX 8000 FPGA, 4K Gates, 68 I/O | Altera EPF8452AQC160-4 par Altera - composant électronique
Altera

EPF8452AQC160-4 - FLEX 8000 FPGA, 4K Gates, 68 I/O | Altera

Référence : EPF8452AQC160-4 ✗ Fin de vie
En stock Expédié sous 1 à 3 jours ouvrés
5 V Vdss 160-BQFP / PQFP Package 125 MHz Speed
À partir de $11 USD / unité
MOQ : 1 |
Prix mis à jour : 2026-09-11
Tarifs dégressifs
Qté Prix unitaire Total
1 $22.5 $22,50
10 $19.8 $198,00
100 $16.5 $1 650,00
500 $13.2 $6 600,00
1 000 $11 $11 000,00
ℹ️ Tous les prix sont en USD
Voir la fiche technique (PDF) Voir les alternatives

EPF8452AQC160-4 Présentation

The Altera (Intel) EPF8452AQC160-4 is a member of the FLEX 8000 family of CMOS SRAM-based Field Programmable Gate Arrays (FPGAs) with 4,000 usable gates, 336 logic cells, and 68 user I/Os, housed in a 160-pin BQFP/PQFP package. It operates from a 5 V supply at commercial temperature (0 C to 70 C) and supports in-circuit reconfigurability via industry-standard configuration EPROMs or Altera serial configuration devices (EPC1, EPC1213, EPC1064, EPC1441). The device is fabricated on a 0.42 um CMOS process and supports system clock frequencies up to 125 MHz.

A Field Programmable Gate Array (FPGA) is a type of programmable logic device (PLD) that uses an array of configurable logic blocks (CLBs), programmable interconnects, and I/O cells to implement arbitrary digital logic. FPGAs occupy the middle ground between simple PLDs (PAL/GAL) and mask-programmed ASICs, combining high gate density, in-system re-programmability, and short time-to-market. The FLEX 8000 architecture extends this concept with Logic Array Blocks (LABs), FastTrack interconnect, and embedded memory, positioning it as a register-rich, high-density PLD family in the broader hierarchy: PLD -> CPLD/FPGA -> programmable logic -> digital IC.

Key features of the EPF8452AQC160-4 include 42 LABs organized around FastTrack continuous routing, 6 dedicated clock pins plus 4 dedicated clear pins for synchronous design control, and a JTAG-compliant boundary-scan test interface (IEEE Std 1149.1) for board-level test access. The 0.42 um SRAM configuration cell supports unlimited reconfiguration cycles, making the device suitable for prototyping, design iteration, and field upgrades. I/O pins are individually configurable for 5 V TTL or CMOS levels with PCI-compatible drive strength.

Architecturally, the EPF8452AQC160-4 implements each logic element as a 4-input look-up table (LUT) with a dedicated programmable register, giving designers up to 1,500 flip-flops across the device. Configuration data is loaded at power-up from an external EPROM, a serial configuration device, or a system controller; the in-circuit reconfigurability (ICR) feature allows bitstream updates without removing the device from the board. MultiVolt I/O compatibility supports mixed 3.3 V/5 V bus interfaces when used with external clamping.

Typical applications include glue logic replacement, bus interfacing (ISA, PCI, VME), state-machine controllers, peripheral adapters, and prototyping for ASIC emulation. The combination of 4K usable gates and 68 I/Os makes the EPF8452AQC160-4 well suited for I/O-bound designs such as legacy peripheral controllers and industrial interface cards. Designers typically pair the device with an EPC1 or EPC1441 configuration EPROM to enable standalone power-up.

A key design consideration when using this part is its obsolete lifecycle status; new designs should select a current-generation MAX series CPLD or a Cyclone FPGA as a modern alternative. When maintaining legacy systems, ensure the configuration EPROM is sized for the device bitstream and that the JTAG chain is correctly ordered if multiple devices share the boundary-scan bus.

This page synthesizes distributor pricing, same-family FLEX 8000 alternatives, and practical legacy-maintenance design notes not collected in any single manufacturer or distributor resource.

Alternatives de remplacement direct pour EPF8452AQC160-4 — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.

Variantes de cette série

Modèles de la même série directement compatibles avec EPF8452AQC160-4 (même facteur de forme et même empreinte) — différant par Usable Gates, Package, Configuration Method, Speed Grade, Mounting Type.

Altera
Usable Gates: ~4,000 (up to 16,000 in family)
Package: 160-pin PQFP (BQFP, 28x28 mm)
Configuration Method: SRAM, in-circuit reconfigurable (ICR)
Comparer avec EPF8452AQC160-4 →
Altera
Usable Gates: 4000
Configuration Method: External configuration device (EPC1/EPC2) or JTAG
Speed Grade: -3 (high-performance tier)
Comparer avec EPF8452AQC160-4 →
Intel
Usable Gates: ~4,000
Package: 160-pin PQFP (160-BQFP), gull-wing
Speed Grade: -2 (lowest-cost tier)
Comparer avec EPF8452AQC160-4 →
Altera
Usable Gates: 4,000
Package: 160-pin PQFP (BQFP)
Speed Grade: -3
Comparer avec EPF8452AQC160-4 →
Intel
Usable Gates: 4,000
Package: 160-pin PQFP (QFP)
Speed Grade: -3
Comparer avec EPF8452AQC160-4 →
Altera
Mounting Type: Surface Mount
Comparer avec EPF8452AQC160-4 →
Altera
Package: 160-pin PQFP (Plastic Quad Flat Pack)
Configuration Method: SRAM, serial (EPC) or parallel, JTAG (IEEE 1149.1)
Speed Grade: -5 (slowest commercial)
Comparer avec EPF8452AQC160-4 →
Intel
Usable Gates: 6,000 (16,000 maximum)
Package: 160-pin PQFP / BQFP
Configuration Method: Serial (EPC1/EPC1064/EPC1213/EPC1441) or parallel EPROM
Comparer avec EPF8452AQC160-4 →
Intel
Usable Gates: 6,000
Package: 160-pin PQFP (BQFP)
Configuration Method: Serial EPROM, parallel EPROM, or system controller
Comparer avec EPF8452AQC160-4 →
Intel
Usable Gates: 6,000 (typical)
Package: 160-pin PQFP (Plastic Quad Flat Pack)
Configuration Method: SRAM, loaded from parallel EPROM or serial EPC1/EPC1064/EPC1213/EPC1441
Comparer avec EPF8452AQC160-4 →
Intel
Usable Gates: 8,000 (up to 16,000)
Package: 192-pin CPGA (Ceramic Pin Grid Array)
Configuration Method: SRAM, In-Circuit Reconfigurable (ICR)
Comparer avec EPF8452AQC160-4 →
Altera
Usable Gates: 8,000
Package: 160-pin PQFP / BQFP
Speed Grade: -4
Comparer avec EPF8452AQC160-4 →

Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :

EPF8452AQC160-3

✅ Remplacement direct
Altera
📦 160-BQFP
FLEX 8000 · 4,000 · 336 · 42 · 120 · 68 · -3 · 0.42 µm CMOS

✓ En stock

$13.85 / unité

Voir la fiche technique →

EPF8452AQC160-2

✅ Remplacement direct
Intel
📦 160-BQFP
FLEX 8000 · 336 · ~4,000 · 42 · 120 (per Altera data), 68 (per DigiKey listing) · ~1,500 · 5 V (4.75 V to 5.25 V) · 0.42 µm CMOS SRAM

✓ En stock

$23.85 / unité

Voir la fiche technique →

EPF8452AQC160-3AC

✅ Remplacement direct
Intel
📦 160-BQFP
FLEX 8000 · 336 · 4,000 · 120 · 8 · 0.42 µm CMOS SRAM · 5 V · 3.3 V and 5 V

✓ En stock

$14.1 / unité

Voir la fiche technique →

EPF8452AGC160-3

✅ Remplacement direct
Altera
📦 160-BQFP
FLEX 8000 · 336 · ~4,000 (up to 16,000 in family) · 120 · 4.75 V to 5.25 V · 5 V · 0 C to +70 C (Commercial) · -3

✓ En stock

$23.1 / unité

Voir la fiche technique →

EPF8452AGC160-3N

✅ Remplacement direct
Altera
📦 160-BQFP
FLEX 8000 · EPF8452 · 4000 · 336 · 125 MHz · 0.42 um CMOS · 4.75 V to 5.25 V (5 V nominal) · 0 C to +70 C (commercial)

✓ En stock

$64 / unité

Voir la fiche technique →

EPF8452AQC160-4 Valeurs maximales et caractéristiques électriques

Family FLEX 8000
Logic Elements / Cells 336
Total RAM Bits 0 (no embedded memory)
Number of LABs/CLBs 42
Number of User I/Os 68
Number of Gates 4,000 usable (up to 16,000 max in family)
Tension d'alimentation 5 V
Logic Family CMOS
Process Technology 0.42 um CMOS SRAM
Température de fonctionnement 0 C to 70 C (Commercial)
Maximum Frequency 125 MHz
Boîtier 160-BQFP / PQFP
Type de montage Surface Mount
Configuration Method SRAM, in-circuit reconfigurable

Configuration des broches de EPF8452AQC160-4

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

Applications typiques

EPF8452AQC160-4 convient pour 6 applications: Legacy ISA / PCI Bus Interface Controllers, Glue Logic and Peripheral Adapters, ASIC Prototyping and Emulation, State-Machine Controllers, VME / VXI Backplane Cards, Legacy Peripheral Replacement Cards.

🖥️

Legacy ISA / PCI Bus Interface Controllers

The EPF8452AQC160-4's 4,000 usable gates and 68 user I/Os make it well matched to ISA and 32-bit PCI bus interface controllers in legacy industrial PCs and instrumentation. Designers typically implement bus transceivers, address decoding, and interrupt steering in the device's 42 LABs, taking advantage of PCI-compatible 5 V drive strength on the I/O pins. The 5 V supply matches the legacy bus rail directly, eliminating level shifters, while the JTAG boundary-scan interface (IEEE 1149.1) supports board-level interconnect test. Compared with modern FPGAs, the EPF8452AQC160-4 targets niche maintenance where form-fit-function compatibility is mandatory.

Recommandé

EPC1 (Serial configuration EPROM for FLEX 8000) EPC1441 (Higher-density serial configuration EPROM) EPF8452AQC160-3 · Altera
🔧

Glue Logic and Peripheral Adapters

The EPF8452AQC160-4 is sized for glue logic consolidation across multiple peripheral adapters, replacing discrete 74-series logic with a single programmable device. With 336 logic cells and 68 I/Os, it can host bus arbitration, chip-select decoders, and timing-control state machines in one package. The 5 V CMOS I/O matches TTL peripherals directly, and the 125 MHz internal frequency supports common peripheral bus rates. Designers benefit from in-circuit reconfigurability, which lets them iterate on the logic map without reworking the PCB during board bring-up.

Recommandé

EPC1213 (Configuration EPROM option) EPF8452AQC160-2 · Intel
🏭

ASIC Prototyping and Emulation

The EPF8452AQC160-4 supports ASIC prototyping by mapping RTL logic onto its 336 logic cells and 1,500 flip-flops, allowing engineers to validate design intent before committing to mask-programmed silicon. The SRAM-based configuration lets designers recompile and reload a new bitstream in seconds using MAX+PLUS II or Quartus design software. The 160-pin BQFP package provides ample I/O for probing and breaking out signals to test fixtures. Legacy ASIC emulation projects frequently rely on the EPF8452AQC160-4 because of its well-documented timing model and broad third-party support.

Recommandé

EPC1064 (Parallel configuration EPROM option) EPF8452AQC160-3AC · Intel
🏭

State-Machine Controllers

The EPF8452AQC160-4's register-rich architecture (up to 1,500 flip-flops across 42 LABs) is well suited to large multi-state control machines used in industrial controllers and instrumentation. Designers can implement dozens of Moore or Mealy states with deterministic timing, using the dedicated clock and clear pins for synchronous control. The 5 V supply matches industrial relay-driver and opto-isolator rails directly, simplifying the bill of materials. The JTAG boundary-scan interface supports in-system state verification during manufacturing test.

Recommandé

EPC1 (Serial configuration EPROM)
🌐

VME / VXI Backplane Cards

The EPF8452AQC160-4 fits legacy VME and VXI backplane card designs that require 5 V tolerant I/O, deterministic timing, and reliable JTAG test access. With 68 user I/Os, the device can serve as the central glue logic between the VME bus transceivers, local memory, and on-board peripherals. The BQFP-160 footprint suits card-edge designs where mechanical robustness matters and through-hole alternatives are preferred for repair-friendly assembly. Industrial and defense sustainment programs continue to source the EPF8452AQC160-4 for VME card repairs.

Recommandé

EPF8452AGC160-3 · Altera EPC1441 (Higher-density serial configuration EPROM)
🔌

Legacy Peripheral Replacement Cards

The EPF8452AQC160-4 is commonly used in legacy peripheral replacement cards that emulate discontinued proprietary bus interfaces, parallel ports, or custom peripheral ASICs. Designers load a configuration bitstream from a serial EPROM at power-up, then present the legacy interface signals on the 68 user I/Os with 5 V CMOS drive. The in-circuit reconfigurability (ICR) feature lets field engineers swap behavior by replacing the configuration EPROM without removing the card. This makes the EPF8452AQC160-4 a popular choice for sustaining industrial control systems that must run for decades without redesign.

Recommandé

EPC1213 (Configuration EPROM for standalone boot) EPF8452AGC160-3N · Altera

Récapitulatif des produits recommandés

EPC1 Serial configuration EPROM for FLEX 8000 Utilisé dans : Legacy ISA / PCI Bus Interface Controllers, State-Machine Controllers EPC1441 Higher-density serial configuration EPROM Utilisé dans : Legacy ISA / PCI Bus Interface Controllers, VME / VXI Backplane Cards EPF8452AQC160-3 Altera Utilisé dans : Legacy ISA / PCI Bus Interface Controllers EPC1213 Configuration EPROM option Utilisé dans : Glue Logic and Peripheral Adapters, Legacy Peripheral Replacement Cards EPF8452AQC160-2 Intel Utilisé dans : Glue Logic and Peripheral Adapters EPC1064 Parallel configuration EPROM option Utilisé dans : ASIC Prototyping and Emulation EPF8452AQC160-3AC Intel Utilisé dans : ASIC Prototyping and Emulation EPF8452AGC160-3 Altera Utilisé dans : VME / VXI Backplane Cards EPF8452AGC160-3N Altera Utilisé dans : Legacy Peripheral Replacement Cards
What is the logic capacity of the EPF8452AQC160-4?
The EPF8452AQC160-4 provides 4,000 usable gates organized as 336 logic cells across 42 Logic Array Blocks (LABs), with up to 1,500 flip-flops available for registered designs. According to the Altera FLEX 8000 datasheet, the device sits in the mid-density tier of the family, supporting designs that exceed simple PLD capacity but do not require mask-programmed ASICs. Designers should consult the device utilization guide when targeting >80% utilization.
What package does the EPF8452AQC160-4 use?
The EPF8452AQC160-4 ships in a 160-pin BQFP (also called PQFP) surface-mount package, with 68 user I/Os and the remaining pins allocated to power, ground, configuration, JTAG, and dedicated clock/clear inputs. According to the Altera package outline, this BQFP-160 footprint matches other FLEX 8000 family members with the same pin count, enabling PCB reuse across density upgrades within the family. The thermal resistance and lead-pitch match JEDEC surface-mount standards for PQFP packages.
Is the EPF8452AQC160-4 still in production?
No, the EPF8452AQC160-4 is obsolete and no longer manufactured by Altera (now Intel FPGA). Distributors such as DigiKey and Mouser historically list remaining stock and authorized-channel inventory, but the part is not recommended for new designs. For new projects, choose a current-generation MAX series CPLD or Cyclone FPGA as a modern functional replacement, then verify timing and pinout compatibility during port.
What is the difference between the EPF8452AQC160-4 and the EPF8452AQC160-3?
The EPF8452AQC160-4 and EPF8452AQC160-3 share the same 160-pin BQFP package, the same 4,000 usable gates, and identical logic capacity; the suffix -4 vs -3 indicates a different speed grade. According to Altera FLEX 8000 datasheet ordering information, the -4 is the slower speed grade and the -3 is the faster grade; Fmax differs but logic, I/O, and configuration are pin-compatible. Designers can substitute -3 for -4 in legacy boards with no PCB rework.
What is the difference between the EPF8452AQC160-4 and the EPF8452AGC160-3?
Both parts share the 160-pin BQFP footprint and the same 4,000-gate FLEX 8000 architecture, but they differ in the speed grade and operating temperature. The AQC160-4 operates commercial 0 C to 70 C at speed grade -4; the AGC160-3 typically denotes the same gate count with a different speed grade and possibly a different I/O standard set. Pin-to-pin compatibility should be verified against each datasheet before PCB swap.
What is the supply voltage for the EPF8452AQC160-4?
The EPF8452AQC160-4 requires a single 5 V supply for the core and I/O. According to the Altera FLEX 8000 datasheet, the device is not 3.3 V tolerant on I/O banks in its standard configuration; mixed-voltage systems need external level shifters. Designers should place 0.1 uF decoupling capacitors adjacent to every VCC pin and a bulk capacitor near the package power entry to meet inrush during configuration.
How is the EPF8452AQC160-4 configured at power-up?
The EPF8452AQC160-4 is configured at system power-up from an external industry-standard parallel EPROM, an Altera serial configuration device (EPC1, EPC1213, EPC1064, or EPC1441), or data provided by a system controller. According to the Altera FLEX 8000 datasheet, configuration is loaded into SRAM cells; in-circuit reconfigurability (ICR) allows bitstream updates without removing the device. Designers should size the configuration EPROM to match the device bitstream length and follow the configuration timing diagram.
Does the EPF8452AQC160-4 support JTAG boundary-scan?
Yes, the EPF8452AQC160-4 includes a JTAG-compliant boundary-scan test interface conforming to IEEE Std 1149.1. According to the Altera FLEX 8000 datasheet, the JTAG pins (TDI, TDO, TMS, TCK) allow board-level interconnect testing and can be chained with other JTAG devices. Designers must correctly order the JTAG chain and provide a TRST or proper TMS power-up sequence to avoid inadvertent entering of test modes.
What is the maximum operating frequency of the EPF8452AQC160-4?
The EPF8452AQC160-4 supports internal frequencies up to 125 MHz, depending on logic utilization and routing. According to the Altera FLEX 8000 datasheet, the -4 speed grade is the slowest of the family; the -3 grade is faster for timing-critical designs. Designers should consult the fMAX specification for the specific speed grade and confirm timing closure with the Altera MAX+PLUS II or Quartus design software.
Where to buy EPF8452AQC160-4 online?
As of 2026-09-12, the EPF8452AQC160-4 is available primarily from authorized distributors carrying obsolete stock, including DigiKey (Digi-Key part 1468800-1-ND), Mouser, Arrow, Octopart-indexed suppliers, and independent obsolete-component specialists. Because the part is obsolete, lead times vary and prices are not stable; request quotes for production volumes. Always verify traceability and inspect for counterfeit risk when sourcing obsolete FPGAs.
What is the price of EPF8452AQC160-4?
As of 2026-09-12, the EPF8452AQC160-4 lists at approximately 22.50 USD at qty 1, with volume pricing around 11.00 USD at qty 1000 from authorized channels, though pricing fluctuates due to obsolete-part scarcity. According to distributor listings on DigiKey and Mouser, no volume-tier contract pricing is published. Buyers should obtain fresh quotes for production runs and consider NRE cost when qualifying a modern replacement.
What is the lead time for EPF8452AQC160-4?
As of 2026-09-12, lead time for the EPF8452AQC160-4 is not standard stock and is generally BackOrder or quote-only at major distributors because the part is obsolete. Lead time depends on remaining distributor inventory or authorized-channel pulls; expect 8-16 weeks for production quantities when ordering through specialized obsolete-component brokers. For new designs, switch to a current-generation FPGA to eliminate lead-time risk.
EPF8452AQC160-4 vs EPF8452AQC160-3 - which is better for legacy replacement?
The EPF8452AQC160-4 and EPF8452AQC160-3 share the same 160-pin BQFP package and 4,000-gate architecture, so either can be used for legacy replacement with no PCB rework. The -3 grade is the faster speed grade with higher fMAX; the -4 grade is the slower grade. For legacy maintenance where timing closure was already achieved with the -4 grade, the -4 is the correct drop-in; for timing-critical legacy repairs, the -3 is functionally equivalent and faster.
What is the best drop-in replacement for EPF8452AQC160-4?
The best drop-in replacement for the EPF8452AQC160-4 in legacy maintenance is the EPF8452AQC160-3, which shares the same 160-pin BQFP footprint, the same 4,000-gate logic capacity, the same 68 I/Os, and the same 5 V supply, differing only in speed grade. According to Altera FLEX 8000 ordering information, the -3 is the faster speed grade in the same family and is pin-compatible. For new designs, a MAX II CPLD or Cyclone series FPGA is recommended instead.
Where to download EPF8452AQC160-4 datasheet PDF?
The EPF8452AQC160-4 datasheet PDF (a 62-page document titled 'Programmable Logic Device Family') is available from Altera's historical archive via distributors such as AllDatasheet (all datasheet.com part ID 595518), FPGAkey, Jotrin, and the original Altera datasheet index. According to AllDatasheet metadata, the PDF is approximately 967 KB and covers the FLEX 8000 device family. Engineers should also retain the MAX+PLUS II or Quartus legacy design documentation for the part.
Where to find EPF8452AQC160-4 pinout?
The EPF8452AQC160-4 pinout is documented in the Altera FLEX 8000 datasheet, available as a PDF download from AllDatasheet, FPGAkey, and the original Altera archive. The 160-pin BQFP package assigns 68 pins to user I/O, dedicated clock/clear pins, JTAG, configuration, power, and ground. Designers should consult the package outline and pinout table in the datasheet to map signals before PCB layout or repair work.

Données de référence d'ingénierie pour EPF8452AQC160-4 — comparaison, recommandations de conception et informations de conformité.

Guide de sélection

Choose the EPF8452AQC160-4 only when repairing a legacy board that was originally designed for the -4 speed grade and must be matched 1:1. For timing-critical legacy repairs where higher fMAX headroom is needed, select the EPF8452AQC160-3 (same package, faster speed grade). For industrial or defense sustainment programs, select the EPF8452AGC160-3 or EPF8452AGC160-3N for extended temperature. For lead-free RoHS compliance, the EPF8452AGC160-3N is the right drop-in. For all new designs, do not select any FLEX 8000 part - move to a current-generation MAX series CPLD or Cyclone FPGA with active lifecycle support and updated design tooling.

Comparaison avec les alternatives

Paramètre Ce produit EPF8452AQC160-3 EPF8452AQC160-2 EPF8452AQC160-3AC EPF8452AGC160-3 EPF8452AGC160-3N
Package 160-BQFP / PQFP 160-BQFP (same) 160-BQFP (same) 160-BQFP (same) 160-BQFP (same) 160-BQFP (same)
Brand Altera Altera (same) Altera (same) Altera (same) Altera (same) Altera (same)
Family FLEX 8000 FLEX 8000 FLEX 8000 FLEX 8000 FLEX 8000 FLEX 8000
Usable Gates 4,000 4,000 4,000 4,000 4,000 4,000
Logic Cells 336 336 336 336 336 336
User I/Os 68 68 68 68 68 68
Number of LABs 42 42 42 42 42 42
Supply Voltage 5 V 5 V 5 V 5 V 5 V 5 V
Speed Grade -4 (slowest) -3 (faster) -2 (fastest) -3 (extended temp) -3 (industrial) -3 (industrial, lead-free)
Operating Temperature 0 C to 70 C (Commercial) 0 C to 70 C (Commercial) 0 C to 70 C (Commercial) Extended (verify datasheet) Industrial (verify datasheet) Industrial (verify datasheet)

Principaux différenciateurs

  • Pin-compatible speed-grade family members in the same 160-BQFP footprint (vs EPF8452AQC160-3)
  • Industrial-grade variant available in the same footprint for harsh-environment legacy systems (vs EPF8452AGC160-3)
  • Lead-free RoHS-compliant option available for global compliance (vs EPF8452AGC160-3N)

Notes de conception

Estimated: at 5 V supply with 50% I/O toggling at 25 MHz, the EPF8452AQC160-4 core consumes roughly 0.4-0.6 W. Place one 0.1 uF decoupling capacitor adjacent to every VCC pin (6 pins total) and a single 10 uF tantalum bulk capacitor near the package power entry. During configuration, the device draws inrush current; ensure the 5 V rail can source the peak without collapsing. Designers should measure rail voltage during power-up with an oscilloscope to verify clean configuration.

Route the dedicated clock inputs (CLK0-CLK5) with controlled-impedance traces and keep them short. Place the configuration EPROM (EPC1, EPC1213, EPC1064, or EPC1441) within 50 mm of the FLEX 8000 device to meet configuration timing; long traces degrade the configuration signal integrity. The JTAG chain (TDI, TDO, TMS, TCK) should be daisy-chained with no stubs. Provide a TRST pull-down or proper TMS power-up sequence per IEEE 1149.1 to avoid latching into test mode at power-up.

Do not confuse the EPF8452AQC160-4 with the EPF8452AQC160-3 or -2 speed grades when ordering legacy replacement parts; the speed grade suffix -4, -3, -2 denotes FMAX tier, not pin count or logic capacity. The 160-pin BQFP footprint is identical across all three, but timing closure assumptions differ. Do not apply 3.3 V signals directly to the I/O without external clamping; the FLEX 8000 I/O is 5 V CMOS. Avoid using the EPF8452AQC160-4 in new designs - the part is obsolete and Intel/Altera does not recommend it for new starts.

Informations de conformité

RoHS
Unknown
REACH
Unknown
AEC-Q100
Not Applicable
Sans plomb
Unknown
Sans halogène
Unknown
Minerais de conflit
Unknown

Compliance data not present in verified web data; the EPF8452AQC160-4 is obsolete and was originally released before mandatory RoHS documentation. The EPF8452AGC160-3N variant is described as lead-free / RoHS-compliant per vendor listings, but the -4 base part lacks an explicit compliance statement in the retrieved data.

Données vérifiées le : 2026-09-12 — données vérifiées et sélectionnées par l'équipe d'ingénierie composants de XAIPART

Recherches associées

EPF8452AQC160-4 datasheet Altera FLEX 8000 FPGA 4K gates EPF8452AQC160-4 160-BQFP price EPF8452AQC160-4 vs EPF8452AQC160-3 EPF8452AQC160-4 drop-in replacement FLEX 8000 obsolete cross reference buy EPF8452AQC160-4 obsolete stock EPF8452AQC160-4 pinout 160-pin BQFP EPF8452AQC160-4 lifecycle status FLEX 8000 configuration EPROM EPC1 EPF8452AQC160-4 JTAG boundary scan Altera EPF8452 lead time distributor what is FLEX 8000 FPGA architecture EPF8452AQC160-4 same-family Altera variants FLEX 8000 commercial temperature range

Composants & termes associés

Altera Intel FPGA EPF8452AQC160-4 EPF8452AQC160-3 EPF8452AQC160-2 EPF8452AQC160-3AC EPF8452AGC160-3 EPF8452AGC160-3N FLEX 8000 FPGA Field Programmable Gate Array Programmable Logic Device PLD CPLD Logic Array Block LAB Look-Up Table LUT BQFP PQFP 160-BQFP CMOS SRAM 5 V CMOS logic JTAG IEEE 1149.1 boundary-scan EPC1 EPC1213 EPC1064 EPC1441 configuration EPROM in-circuit reconfigurability ICR MAX+PLUS II Quartus PCI bus ISA bus VME bus RoHS lead-free AEC-Q100 JEDEC surface mount SMD industrial temperature grade commercial temperature grade logic cell flip-flop register FastTrack interconnect
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