EPM7128AETC144-5

Complex Programmable Logic Devices Overview

The EPM7128AETC144-5 is a Complex Programmable Logic Device (CPLD) belonging to the Altera MAX 7000A family. It utilizes second-generation Multiple Array MatriX (MAX) architecture and CMOS EEPROM technology, operating at a 3.3-V supply voltage. The device integrates 128 macrocells and provides approximately 2,500 usable gates across eight logic array blocks (LABs). It features in-system programmability (ISP) via an IEEE Std. 1149.1 JTAG interface and supports pin-locking capabilities. The component is housed in a TQFP-144 package with 128 available I/O pins, offering a typical pin-to-pin delay of 5 ns and maximum counter speeds up to 175.4 MHz.

Complex Programmable Logic Devices Feature Summary

• High-density CPLD with 128 macrocells and 2,500 usable gates based on MAX 7000A architecture
• 3.3-V operation with In-System Programmability (ISP) through built-in IEEE 1149.1 JTAG interface
• TQFP-144 surface-mount package providing 128 user I/O pins
• EEPROM non-volatile storage allowing immediate power-up execution without external configuration memory

Complex Programmable Logic Devices Applications

• Address decoding and bus interfacing in embedded systems
• Signal processing and timing control for industrial automation
• Protocol conversion and data merging in communication equipment
• General-purpose digital logic implementation replacing fixed-function gate arrays

Complex Programmable Logic Devices Procurement Notes

Verify the specific speed grade suffix '-5' against official datasheets to confirm the exact propagation delay and frequency specifications, as variations exist within the MAX 7000A series. Confirm that the 'E' designation indicates the enhanced ISP features compatible with IEEE Std. 1532 if required by the design. Check current lifecycle status, as many MAX 7000A components have reached end-of-life or not-recommended-for-new-designs status.

Complex Programmable Logic Devices Selection Notes

Select this component when a 3.3-V logic level is required with high I/O density in a 144-pin form factor. Ensure the design fits within the 128 macrocell limit and eight LAB structure. Verify compatibility with existing 5-V interfaces if level shifting is not implemented, as the MAX 7000A series is primarily 3.3-V, though some variants support mixed voltages. Compare against the older MAX 7000S series if 5-V operation is strictly necessary.

Complex Programmable Logic Devices Part Context

The EPM7128AETC144-5 is part of the MAX 7000A family, which succeeded the 5-V MAX 7000S series. It shares pin compatibility with certain 5-V devices but operates at lower voltage for reduced power consumption. This family represents Altera's transition to EEPROM-based CPLDs with ISP capabilities, preceding the FPGA-centric MAX II and MAX V lines.

Complex Programmable Logic Devices Replacement Considerations

Direct pin-compatible replacements may include other MAX 7000A variants such as EPM7128AETC144-7 or EPM7128AETC144-10, differing only in speed grades. For modern equivalents, consider Intel MAX 10 or MAX V families, though these require architectural redesign due to differences in logic resources and I/O standards.