GAL22V10D-4LJN

Programmable Logic Device Pld Overview

The GAL22V10D-4LJN is a high-performance Electrically Erasable Programmable Logic Device (EPLD) from Lattice Semiconductor, utilizing E2CMOS technology. It features ten output logic macrocells and supports a maximum propagation delay of 4 ns with an operating frequency up to 250 MHz. The device operates within a voltage range of 3.0 V to 3.3 V and is housed in a 28-pin PLCC package. Designed for commercial applications, it functions between 0°C and +75°C. Key characteristics include active pull-ups on all pins, full compatibility with standard bipolar and UVCMOS 22V10 fuse maps, and rapid electrical erasure capabilities.

Programmable Logic Device Pld Feature Summary

• High-speed performance with 4 ns max propagation delay and 250 MHz Fmax
• Ten reconfigurable output logic macrocells with preload and power-on reset
• Active pull-ups on all I/O pins for improved signal integrity
• Compatible with standard 22V10 device functionality and fuse maps

Programmable Logic Device Pld Applications

• DMA controller implementations
• Complex state machine control
• High-speed graphics processing interfaces
• Standard logic speed upgrades replacing bipolar devices

Programmable Logic Device Pld Part Context

This component belongs to the GAL22LV10 family, representing Lattice's transition to lower voltage 3.3V architectures while maintaining pin and functional compatibility with legacy 5V GAL22V10 devices. The 'D' suffix indicates a dual-voltage capable variant, though this specific grade is optimized for 3.3V operation. It serves as a drop-in replacement for older bipolar 22V10s in designs requiring reduced power consumption without sacrificing speed.

Programmable Logic Device Pld Replacement Considerations

Direct pin-compatible replacements include other GAL22LV10 variants with different speed grades (e.g., -5, -10, -15). Designers must verify that the target system provides a stable 3.3V supply, as the GAL22LV10 series does not support the 5V levels used by original bipolar GAL22V10s.