Altera

EPM9320RI208-20N - MAX 9000 CPLD 320 Macrocell 208-PQFP | Altera

MPN: EPM9320RI208-20N ✗ Cuối đời

5.0 V Vdss 208-pin PQFP (Plastic Quad Flat Pack) Package EEPROM (non-volatile) Memory

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EPM9320RI208-20N Tóm tắt

The Altera EPM9320RI208-20N is a MAX 9000 family Complex Programmable Logic Device (CPLD) with 320 macrocells, 484 flip-flops, and a 20 ns pin-to-pin propagation delay, housed in a 208-pin Plastic Quad Flat Pack (PQFP) package with 0.5 mm lead pitch. It is a 5.0 V EEPROM-based programmable logic device offering in-system programmability (ISP) through a built-in IEEE Std. 1149.1 JTAG interface.

A CPLD (Complex Programmable Logic Device) is a programmable logic IC that combines multiple programmable logic array blocks with a programmable interconnect matrix, allowing designers to implement custom digital logic functions without fabricating an ASIC. Within the programmable logic hierarchy, the CPLD sits between simple PLDs (PAL/GAL) and full FPGAs, offering non-volatile configuration, deterministic timing, and instant-on operation. The MAX 9000 family is built on Altera's third-generation Multiple Array MatriX (MAX) architecture, which uses EEPROM cells to retain configuration without an external boot device.

Key features of the EPM9320RI208-20N include 320 macrocells organized into Logic Array Blocks (LABs), 484 flip-flops, 5.0 V in-system programmability via JTAG, and four dedicated low-skew global input pins typically used for clock, clear, and output-enable distribution. The device supports 3.3 V or 5 V configurable I/O operation, making it suitable for mixed-voltage legacy systems. The industrial temperature grade (I suffix) covers -40C to +85C operation.

The MAX 9000 architecture routes signals through a programmable interconnect array that provides predictable, fixed pin-to-pin delays of 20 ns, eliminating the timing uncertainty found in SRAM-based FPGAs. This deterministic timing is critical for glue-logic replacement, bus interface, and state-machine applications where worst-case delay must be guaranteed.

Typical applications include legacy system glue logic, ISA/PCI bus interfaces, industrial control state machines, instrumentation front-end logic, and replacement of discrete 74-series logic. The 208-pin PQFP package provides up to 160 user I/O pins for wide bus interfaces.

When designing with this device, note that VCC must rise monotonically during power-up, and inputs may undershoot to -2.0 V or overshoot to 7.0 V for periods shorter than 20 ns under no-load conditions. The EPM9320RI208-20N is a mature, widely second-sourced part; verify lifecycle status before committing to new designs.

This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, providing engineers with a single reference for replacement and design-in decisions.

Bộ thay thế dễ dàng lắp đặt cho EPM9320RI208-20N — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.

Các biến thể trong loạt này

Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với EPM9320RI208-20N (cùng hình factor và footprint) — khác nhau ở Package, In-System Programmability, Usable Gates, Device Type, Macro Cells.

EPM9320RC208-15

Altera

Package: 208-pin RQFP (Power QFP)

In-System Programmability: Yes (ISP via JTAG)

Usable Gates: 6,000