EPM7128ALC84-6

Complex Programmable Logic Devices Overview

The Altera EPM7128ALC84-6 is a Complex Programmable Logic Device (CPLD) belonging to the MAX 7000A family. It utilizes second-generation Multiple Array MatriX (MAX) architecture with CMOS EEPROM technology. The device integrates 128 macrocells and approximately 2,500 usable gates organized into 8 Logic Array Blocks (LABs). It operates at a supply voltage of 3.3V and features 68 user I/O pins within an 84-pin PLCC package. Key electrical parameters include a maximum propagation delay of 6 ns and a maximum operating frequency of 147.1 MHz. The component supports In-System Programming (ISP) via JTAG.

Complex Programmable Logic Devices Feature Summary

• 128 Macrocells and 8 Logic Array Blocks (LABs) for high-density logic implementation
• 3.3V operation with ISP capability through IEEE Std. 1149.1 JTAG interface
• Maximum propagation delay of 6 ns and operating frequency up to 147.1 MHz
• EEPROM storage type allowing non-volatile configuration retention

Complex Programmable Logic Devices Applications

• Address decoding and bus interfacing in industrial control systems
• Signal processing and timing control circuits
• Data conversion and sensor detection interfaces
• Replacement for legacy TTL/CMOS logic in embedded designs

Complex Programmable Logic Devices Procurement Notes

Verify component authenticity as this part number is from an established product line. Confirm RoHS compliance status and moisture sensitivity level (MSL) ratings prior to soldering. Check for end-of-life notices or obsolescence warnings from the manufacturer. Ensure programming tools support the specific MAX 7000A architecture for successful configuration.

Complex Programmable Logic Devices Selection Notes

Select this model when 128 macrocells are sufficient for the design requirements. The 6 ns delay speed grade suits applications requiring moderate switching speeds. The 84-pin PLCC package is suitable for through-hole mounting if surface mount options are unavailable. Verify that the 3.3V I/O levels are compatible with the target system's voltage domains.

Complex Programmable Logic Devices Part Context

This device is part of the Altera MAX 7000A series, which succeeded the 5V MAX 7000S family. It maintains pin compatibility with certain 5V variants while offering lower power consumption due to 3.3V operation. The MAX 7000A series represents a transition point in Altera's CPLD portfolio, bridging older architectures with newer low-voltage standards.

Complex Programmable Logic Devices Replacement Considerations

Direct pin-compatible replacements may exist within the same MAX 7000A family with different speed grades or I/O counts. Cross-reference with EPM7128AE or EPM7128SLC84 variants for similar functionality. Verify that any substitute maintains the required 128 macrocell count and EEPROM technology.