EPM7128SLC84-15N

Complex Programmable Logic Devices Overview

The EPM7128SLC84-15N is a Complex Programmable Logic Device (CPLD) from Altera's MAX 7000S family, utilizing second-generation MAX architecture and CMOS EEPROM technology. It integrates 128 macrocells organized into eight logic array blocks, providing 2,500 usable gates and 68 user I/O pins in an 84-pin PLCC package. The device supports 5.0-V in-system programmability via a built-in IEEE Std. 1149.1 JTAG interface and includes boundary-scan test circuitry. Key electrical parameters include a pin-to-pin propagation delay of 15 ns, a maximum counter frequency of 147.1 MHz, and an input setup time of 3.4 ns.

Complex Programmable Logic Devices Feature Summary

• In-system programmability (ISP) via 4-pin JTAG interface compatible with IEEE Std. 1149.1 and IEEE Std. 1532
• Built-in JTAG boundary-scan test (BST) circuitry for devices with 128 or more macrocells
• Configurable expander product-term distribution allowing up to 32 product terms per macrocell
• Programmable speed/power optimization mode reducing macrocell power dissipation by over 50%

Complex Programmable Logic Devices Applications

• Address decoding and signal processing in industrial control systems
• Bus communication interfaces and data conversion circuits
• Sensor detection and displacement measurement applications
• Replacement for standard logic components such as PALs, GALs, and pLSI devices

Complex Programmable Logic Devices Procurement Notes

Verify the specific ordering suffix against manufacturer documentation to confirm package type and speed grade. Confirm that the component meets required environmental specifications, including operating temperature ranges and humidity sensitivity levels. Ensure compatibility with existing programming hardware, such as MasterBlaster or ByteBlasterMV cables, for in-system programming workflows.

Complex Programmable Logic Devices Selection Notes

Select this device when designs require high-density logic within a CPLD form factor and necessitate field reprogrammability. The MAX 7000S series is suitable for mixed-voltage systems due to MultiVolt I/O capabilities, allowing interfacing with both 3.3-V and 5.0-V logic. Consider the 15-ns speed grade if timing constraints allow for slower switching compared to -5 or -6 grade variants.

Complex Programmable Logic Devices Part Context

This component belongs to the MAX 7000S series, which enhances the standard MAX 7000E features with ISP and BST capabilities. The EPM7128 variant specifically offers 128 macrocells, bridging the gap between lower-density models like the EPM7064 and higher-density options like the EPM7160. It is fabricated using advanced CMOS EEPROM processes to ensure non-volatile storage and high reliability.

Complex Programmable Logic Devices Replacement Considerations

Direct functional replacements within the same density class include other EPM7128 variants with different speed grades or packages, such as EPM7128SLI84-10N. Cross-family migration may involve MAX 7000A or MAX 7000B devices for low-voltage requirements, though pin compatibility must be verified.