GAL26CV12B-15LJ

Programmable Logic Device Pld Overview

The GAL26CV12B-15LJ is a high-performance Complex Programmable Logic Device (CPLD) from Lattice Semiconductor's GAL26V family. It utilizes E2CMOS technology to deliver low power consumption with non-volatile configuration retention. The device features a PAL-type architecture with 26 input pins and 12 registered outputs, providing 12 macrocells for logic implementation. Operating at a maximum clock frequency of 55.5 MHz, it supports register preload and power-up reset functions. Packaged in a 28-pin Plastic Dual In-line Package (PDIP), this component is designed for general-purpose digital logic applications requiring reliable, reprogrammable control.

Programmable Logic Device Pld Feature Summary

• E2CMOS Technology: Combines the speed of CMOS with the non-volatility of EEPROM, eliminating the need for external configuration memory.
• High Performance: Supports a maximum operating frequency of 55.5 MHz with fast propagation delays suitable for complex logic designs.
• Registered Outputs: Features 12 registered output pins with configurable polarity, supporting state machine implementations.
• Power-Up Reset: Includes dedicated circuitry to ensure deterministic initialization states upon power application.

Programmable Logic Device Pld Applications

• Address decoding and chip select generation in embedded systems.
• Bus protocol conversion between different interface standards.
• Simple state machine control for industrial automation equipment.
• Logic replacement for legacy discrete gate circuits.

Programmable Logic Device Pld Procurement Notes

Verify the specific suffix 'LJ' against official Lattice documentation to confirm package type and temperature range, as suffixes can indicate variations in lead finish or commercial/industrial grading. Ensure compliance with RoHS directives if required by the target assembly process, noting that older GAL series parts may have varying environmental certifications. Confirm availability through authorized distributors, as CPLD inventory levels fluctuate based on production lifecycle status.

Programmable Logic Device Pld Selection Notes

Select the GAL26CV12B-15LJ when design requirements involve moderate logic density (12 macrocells) and registered output functionality. Compare pin count and I/O flexibility against smaller GAL16V8 variants if more inputs are needed. Consider the PDIP-28 package constraints for PCB layout space. Evaluate power consumption specifications against system thermal budgets, as E2CMOS devices offer static power advantages over traditional volatile PLDs.

Programmable Logic Device Pld Part Context

This component belongs to the GAL26V family, an evolution of Lattice's classic GAL series. It bridges the gap between simple GAL16V8 devices and larger MachXO or CrossLink FPGAs. The GAL26V series is characterized by its use of E2CMOS technology, which allows for in-system programmability and high reliability in harsh environments, making it a staple in cost-sensitive industrial and consumer electronics designs.

Programmable Logic Device Pld Replacement Considerations

Direct pin-to-pin replacements within the same family include the GAL26CV12B-15LP (Lead-Free PDIP). For upgraded performance, consider the MachXO2 series for increased logic resources and FPGA flexibility. Legacy equivalents from other manufacturers may require logic restructuring due to differences in macrocell architecture and I/O configurations.