PALCE26V12H-15JC/4

Overview

The PALCE26V12H-15JC/4 is a high-performance Complex Programmable Logic Device (CPLD) from Lattice Semiconductor's PALCE20V8 family. It features 26 input pins and 12 registered outputs, providing 12 macrocells for logic implementation. The device operates with a maximum propagation delay of 15 ns and supports supply voltages between 4.75 V and 5.25 V. Packaged in a 28-pin PLCC, it utilizes non-volatile EEPROM technology for instant-on functionality without external configuration memory. The component is rated for industrial temperature ranges, ensuring reliability in demanding electronic applications.

Feature Summary

• 26 Inputs and 12 Registered Outputs with 12 Macrocells
• Non-volatile EEPROM architecture for instant power-up operation
• Maximum propagation delay of 15 ns at 5 V supply
• Industrial temperature range availability (-40°C to +85°C)

Applications

• Address decoding and bus control in embedded systems
• State machine implementation for industrial controllers
• Logic replacement for legacy TTL/CMOS circuits
• Interface adaptation between different voltage domains

Part Context

This component belongs to the PALCE20V8 series, an enhanced version of the classic GAL22V10/GAL16V8 architectures. It offers higher density than standard GALs while maintaining pin-compatible simplicity for direct upgrades in existing designs. The PALCE26V12H variant specifically adds extra inputs compared to lower-density siblings, making it suitable for moderately complex combinational and sequential logic tasks.

Replacement Considerations

Direct pin-for-pin replacements include other PALCE26V12 variants with different speed grades (e.g., PALCE26V12H-15JC). For functional equivalents with potentially improved performance, consider Lattice's MachXO or CrossLink-N families, though these require reconfiguration of design tools and may necessitate PCB layout adjustments due to package differences.