EPM7256AETI144-7N

Complex Programmable Logic Devices Overview

The Altera EPM7256AETI144-7N is a Complex Programmable Logic Device (CPLD) belonging to the MAX 7000AE family. It features 256 macrocells, 16 Logic Array Blocks (LABs), and 5,000 usable gates within a 144-pin Thin Quad Flat Pack (TQFP) package. The device operates on a 3.3 V supply voltage with a maximum propagation delay of 5.5 ns and a maximum operating frequency of 172.4 MHz. It supports in-system programming via IEEE Std. 1149.1 JTAG and includes boundary-scan test circuitry. The component is designated as End-of-Life (EOL).

Complex Programmable Logic Devices Feature Summary

• 256 Macrocells organized into 16 LABs with 5,000 usable gates.
• In-system programmability (ISP) compliant with IEEE Std. 1149.1 (JTAG) and IEEE Std. 1532.
• MultiVolt I/O interface supporting 5.0-V, 3.3-V, and 2.5-V logic levels while core runs at 3.3 V.
• EEPROM storage technology allowing non-volatile configuration retention.

Complex Programmable Logic Devices Applications

• Digital signal processing control logic.
• Address decoding and bus bridging in embedded systems.
• State machine implementation for industrial automation.
• Replacement for legacy 5.0-V MAX 7000S designs.

Complex Programmable Logic Devices Procurement Notes

This component is officially listed as End-of-Life (EOL) by Altera. Verification of authenticity is critical due to potential availability from third-party distributors. Confirm RoHS compliance status and manufacturing date codes prior to acquisition, as original production has ceased.

Complex Programmable Logic Devices Selection Notes

Select this model when transitioning from 5.0-V MAX 7000S devices to 3.3-V architectures while maintaining pin compatibility. Ensure the design requires ISP capabilities via JTAG. Verify that the TQFP-144 package fits the PCB footprint constraints and that the 5.5 ns delay meets timing requirements for the target clock frequencies.

Complex Programmable Logic Devices Part Context

The EPM7256AETI144-7N is part of the second-generation MAX architecture. It serves as a bridge between older 5.0-V CPLDs and modern low-voltage standards. The 'AE' suffix indicates enhanced features such as MultiVolt I/O support and specific ISP enhancements compared to the base MAX 7000 series.

Complex Programmable Logic Devices Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. As an EOL product, engineers must evaluate alternative high-density CPLDs or FPGAs from current portfolios, ensuring logical equivalence and pinout compatibility.