Intel

EPM3256AT1144-10S - MAX 3000A CPLD, 256 Macro, TQFP-144 | Intel

MPN: EPM3256AT1144-10S ✗ Cuối đời

3.3 V Vdss TQFP-144 Package

Yêu cầu báo giá

MOQ: 1 |

Xem tài liệu kỹ thuật (PDF) Xem các bộ thay thế

Số lượng

EPM3256AT1144-10S Tóm tắt

The Intel (formerly Altera) EPM3256AT1144-10S is a member of the MAX 3000A family of high-density, in-system programmable CMOS complex programmable logic devices (CPLDs). Housed in a 144-pin Thin Quad Flat Pack (TQFP) and offering 256 macrocells with a 10 ns pin-to-pin logic delay, this device targets glue-logic integration, bus interfacing, and state-machine consolidation in industrial, telecom, and embedded designs. The "AT" speed/power grade indicates a commercial temperature range with a moderate speed/power tradeoff suitable for general-purpose logic consolidation.

A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that sits between simple PAL/GAL devices and FPGAs in the programmable logic hierarchy. It provides deterministic, instant-on logic (no external boot memory required), predictable timing (fixed pin-to-pin delays), and typically 1.8V-3.3V core operation with multi-voltage I/O support. In the broader taxonomy, the EPM3256AT1144-10S belongs to: CPLD -> programmable logic device -> programmable logic -> digital semiconductor -> integrated circuit. MAX 3000A devices use EEPROM-based configuration cells, so the bitstream is retained without a separate PROM and the device operates immediately on power-up.

Key features of the EPM3256AT1144-10S include 256 macrocells organized into 16 Logic Array Blocks (LABs), a maximum of 212 user I/O pins, 5V-tolerant I/O (with the A-suffix MAX 3000A variant supporting both 3.3V PCI and 5V interfacing in the same design), 10 ns tPD (pin-to-pin delay), and in-system programmability via IEEE 1149.1 JTAG. The TQFP-144 package provides a familiar PCB land pattern that is straightforward to route on 2-layer boards and that supports standard reflow soldering profiles.

The architecture pairs each macrocell with a programmable AND/OR array and a product-term allocator that distributes up to 32 product terms per macrocell, with extra product terms borrowable from neighbouring LABs. This design supports wide fan-in functions (decoders, comparators, multiplexers) and registered state machines in a single device. The MultiVolt I/O pins interface with 2.5V, 3.3V, and 5.0V buses without level shifters, simplifying mixed-voltage board designs.

Typical applications for the EPM3256AT1144-10S include bus-interface bridging, peripheral I/O expansion, address decoding, custom state-machine controllers, and distributed datapath glue logic in industrial controllers, telecom line cards, point-of-sale terminals, and test-and-measurement equipment.

When designing with the EPM3256AT1144-10S, ensure that the Quartus II or MAX+PLUS II design toolchain is available - the device predates the Quartus Prime MAX device support update. JTAG programming requires the TCK/TMS/TDO/TDI pins to be dedicated and the nSTATUS and CONF_DONE pins to be observed for proper in-system programming handshaking.

This page synthesizes distributor pricing for the EPM3256AT1144-10S, same-footprint drop-in alternatives from the MAX 3000A family, and practical design notes not found in the manufacturer datasheet.

Bộ thay thế dễ dàng lắp đặt cho EPM3256AT1144-10S — 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 EPM3256AT1144-10S (cùng hình factor và footprint) — khác nhau ở Package, Operating Temperature, Usable Gates, User I/Os, Mounting Type.

EPM3128ATC144-10

Altera

Package: 144-pin TQFP (TQ144)

Operating Temperature: 0C to +70C (commercial)

Usable Gates: 2,500 (typical)