EPM7128AETC100-5N

Complex Programmable Logic Devices Overview

The EPM7128AETC100-5N is a high-density Complex Programmable Logic Device (CPLD) belonging to the Altera MAX 7000A family. It utilizes advanced CMOS EEPROM technology and operates on a 3.3-V supply voltage. The device integrates 128 macrocells, providing approximately 2,500 usable gates across eight Logic Array Blocks (LABs). It features 84 I/O pins within a TQFP-100 package. Key electrical parameters include a maximum propagation delay of 5 ns, a maximum operating frequency of 192.3 MHz, and a power supply range of 3.0 V to 3.6 V. The component supports In-System Programming (ISP) via an IEEE Std. 1149.1 JTAG interface.

Complex Programmable Logic Devices Feature Summary

• Supports 3.3-V In-System Programming (ISP) through a built-in IEEE Std. 1149.1 JTAG interface with pin-locking capabilities.
• Integrates 128 macrocells and 8 Logic Array Blocks (LABs) for high-density logic implementation.
• Features fast pin-to-pin propagation delay of 5 ns and counter speeds up to 192.3 MHz.
• Includes built-in boundary-scan test (BST) circuitry compliant with IEEE Std. 1149.1.

Complex Programmable Logic Devices Applications

• PCI Local Bus interface design compatible with PCI SIG Revision 2.2 timing requirements.
• Address decoding and bus bridging in embedded systems.
• State machine implementation and sequential logic control.
• Replacement for discrete TTL/CMOS logic gates in industrial control applications.

Complex Programmable Logic Devices Procurement Notes

Verify the specific speed grade suffix (-5) against the required timing constraints, as other variants like -10 exist. Confirm RoHS compliance status, as some MAX 7000A listings indicate non-compliance or lead-containing standards depending on manufacturing date. Check for discontinuation notices, as this series has reached end-of-life status in many regions. Ensure programming tools support the specific ISP protocol for EPM7128A devices.

Complex Programmable Logic Devices Selection Notes

Select this model when a 3.3-V supply is mandatory and 128 macrocells are sufficient for the design. Compare against the EPM7128SQC100-7 if 5.0-V operation is required instead. Consider the EPM7256A series if higher density (256 macrocells) is needed while maintaining pin compatibility. Verify that the TQFP-100 package fits the PCB footprint constraints compared to PLCC or PQFP alternatives.

Complex Programmable Logic Devices Part Context

The EPM7128AETC100-5N is part of the MAX 7000A series, which succeeded the original MAX 7000 and MAX 7000S families. It offers pin-compatible upgrades to 5.0-V devices while introducing native 3.3-V operation. This generation introduced enhanced ISP features and faster switching speeds, making it suitable for mid-performance digital logic applications before the widespread adoption of FPGAs.

Complex Programmable Logic Devices Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. The MAX 7000A family is generally considered obsolete. Designers may need to evaluate newer Intel/Altera CPLD families such as MAX 10 or MAX V, though these require significant schematic and code modifications due to architectural differences.