Altera

EPF8452ALI84-4 - FLEX 8000 FPGA, 4K Gates, 84-PLCC | Altera

Name: EPF8452ALI84-4 - FLEX 8000 FPGA, 4K Gates, 84-PLCC | Altera
Brand: Altera
SKU: EPF8452ALI84-4

MPN: EPF8452ALI84-4 ✗ Akhir Hidup

5 V Vdss 84-pin PLCC (J-Lead) Package 125 MHz Speed

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EPF8452ALI84-4 Ringkasan

The Altera (Intel) EPF8452ALI84-4 is a member of the FLEX 8000 family of CMOS SRAM-based Field Programmable Gate Arrays, offering 4,000 usable gates, 336 logic elements, and 68 user I/Os in a 84-pin Plastic Leaded Chip Carrier (PLCC) J-leaded package. Manufactured on a 0.42 µm CMOS process, it supports a 5V core supply and operates at internal frequencies up to 125 MHz. The device is qualified for commercial operating temperature range (0°C to 70°C) and the speed grade suffix '-4' denotes a specific timing bin from the FLEX 8000 product matrix.

A Field-Programmable Gate Array (FPGA) is a semiconductor integrated circuit that can be reconfigured by the designer after manufacturing. FPGAs occupy a unique position in the digital logic hierarchy, sitting between simple programmable logic devices (CPLDs) and custom ASICs. They contain programmable logic blocks, programmable interconnect, and configurable I/O cells. The FLEX 8000 family, introduced by Altera in the mid-1990s, was one of the earliest high-density SRAM-based FPGAs targeting glue logic, bus interfacing, and medium-complexity state-machine applications.

Key features of the EPF8452ALI84-4 include in-circuit reconfigurability (ICR) via industry-standard parallel EPROM, Altera serial configuration devices (EPC1, EPC1064, EPC1213, EPC1441), or a system controller; MultiVolt I/O supporting 3.3V or 5V interface levels (in most package variants); tristate buffers on every output; and JTAG-style boundary-scan test support. Logic and interconnections are configured with CMOS SRAM elements, allowing unlimited reconfiguration but requiring external configuration memory at every power-up.

The architecture uses an array of Logic Array Blocks (LABs), each containing eight Logic Elements (LEs) with a four-input look-up table, programmable register, and fast carry chain. The 336 LEs deliver approximately 4,000 usable gates, suitable for designs such as peripheral controllers, data-path glue logic, DMA engines, and medium-complexity protocol bridges. The 0.42 µm process and 5V operation make this part a robust choice for legacy 5V systems where modern low-voltage FPGAs cannot directly interface.

Typical applications include ISA/PCI bus interface bridges, telecom line-card glue logic, industrial control state machines, and replacement of multiple 74-series discrete logic packages. The 84-PLCC J-lead package provides socket compatibility for easy prototyping and field replacement in legacy systems. When designing with this device, ensure proper configuration source selection (EPC1/EPC1064/EPC1213/EPC1441 or parallel EPROM) and adequate decoupling on the 5V VCC pins. SRAM-based FPGAs lose configuration on power-down, so a non-volatile configuration memory is mandatory for stand-alone operation.

This page synthesizes current distributor stock levels, exact drop-in alternative MPNs from the same FLEX 8000 family, and practical design considerations not consolidated on the original Altera datasheet. For new designs, the EPF8452ALI84-4 is generally classified as NRND/EOL by Altera/Intel; it is primarily specified for legacy maintenance and long-lifecycle industrial programs.

Alternatif penggantian untuk EPF8452ALI84-4 — paket yang sama, pin-pada-pin kompatibel. Bagian paket yang berbeda memerlukan kerja ulang PCB diabaikan.

Variasi di dalam seri ini

Model-series yang sama yang kompatibel dengan penggantian EPF8452ALI84-4 (sama faktor bentuk dan footprint) — berbeda di dalam Configuration Method, Package, Mounting Type, Operating Temperature, Process Technology.

EPF8282ALI84-4

Intel

Configuration Method: SRAM (in-circuit reconfigurable)

Package: 84-pin PLCC

Mounting Type: Through-Hole (PLCC socket)