PALCE26V12H-7JC/4

Overview

The PALCE26V12H-7JC/4 is a Complex Programmable Logic Device (CPLD) from the Lattice ispMACH 4000 family. It features 12 macrocells and supports up to 26 inputs with 12 registered outputs. The device operates at a maximum frequency of 182 MHz with a typical propagation delay of 7 ns. It utilizes EEPROM technology for non-volatile configuration, allowing in-system programmability. The component is housed in a 44-pin PLCC package and functions within a commercial temperature range of 0°C to +70°C, powered by a standard 5V supply.

Feature Summary

• EEPROM-based non-volatile memory architecture for instant-on operation
• Supports in-system programmability via JTAG interface
• High-speed performance with 182 MHz max frequency and 7 ns delay
• Integrated global clock network and dedicated clock pins

Applications

• Address decoding logic in embedded systems
• Bus protocol conversion between different standards
• State machine implementation for industrial control
• Replacement for legacy GAL devices in existing designs

Procurement Notes

Verify the specific suffix 'JC/4' against official Lattice documentation to confirm package type and temperature grade. Confirm end-of-life status as this series may be superseded by newer M4 or MachXO families. Ensure programming tools support the ispMACH 4000V architecture for reliable configuration.

Selection Notes

Select this component when replacing older GAL structures requiring higher density or registered outputs. Compare macrocell count and I/O availability against design requirements. Consider power consumption differences compared to Flash-based alternatives if low static power is critical. Verify voltage compatibility with system interfaces.

Part Context

This part belongs to the Lattice ispMACH 4000V CPLD family, designed to bridge the gap between simple PLDs and complex FPGAs. It offers deterministic timing and non-volatile storage without the complexity of FPGA bitstreams. The family is known for high reliability and ease of use in logic replacement applications.

Replacement Considerations

Direct pin-to-pin replacements may not exist due to architectural differences. Evaluate Lattice MachXO2 or MachXO3L families for modern equivalents with similar I/O counts but lower power. Check functional equivalence of logic resources and timing characteristics before substitution.