GAL22V10D-25QPN

Programmable Logic Device Pld Overview

The GAL22V10D-25QPN is a discontinued Simple Programmable Logic Device (SPLD) from Lattice Semiconductor, utilizing E2CMOS technology. It features 22 I/O pins and 10 macrocells within a 28-pin PLCC package. The device operates at a maximum propagation delay of 25 ns and supports a supply voltage range of 4.75 V to 5.25 V. Key architectural features include active pull-ups on all pins, reconfigurable logic with 100 erase/write cycles, and an electronic signature for identification. It is fully compatible with standard bipolar and UVCMOS 22V10 devices in terms of function and fuse map.

Programmable Logic Device Pld Feature Summary

• E2CMOS Technology: Offers high-speed electrical erasure (<100ms), 100% tested yields, and over 20 years data retention.
• Flexible Architecture: Features 10 Output Logic Macrocells (OLMCs) with variable product term access (8 to 16 terms per cell).
• Active Pull-ups: Built-in active pull-ups on all pins ensure floating inputs default to a TTL high state.
• Electronic Signature: Includes 64 bits of user-reprogrammable memory for ID codes or revision tracking.

Programmable Logic Device Pld Applications

• DMA Control
• State Machine Control
• High Speed Graphics Processing
• Standard Logic Speed Upgrade

Programmable Logic Device Pld Procurement Notes

This component is officially discontinued by Lattice Semiconductor as indicated in Product Change Notification PCN#09-10. Verification of availability should focus on surplus inventory sources rather than direct manufacturer distribution. Users must confirm the specific package variant matches their PCB footprint requirements, as lead-free options may differ in physical dimensions from older non-lead-free versions.

Programmable Logic Device Pld Selection Notes

Select this part only if legacy compatibility with standard 22V10 fuse maps is required. The 'Q' suffix denotes a PLCC package, while 'PN' indicates a lead-free version. Ensure the design accounts for the 25 ns propagation delay limit and 5V operating voltage. For new designs requiring similar functionality, consider modern CPLD alternatives as this device is no longer in production.

Programmable Logic Device Pld Part Context

The GAL22V10 series represents Lattice's high-performance E2CMOS programmable logic family. The GAL22V10D-25QPN specifically belongs to the commercial grade subset with a 25 ns speed grade. It serves as a drop-in replacement for older bipolar GAL22V10 devices, offering reduced power consumption while maintaining pinout and logical compatibility.

Programmable Logic Device Pld Replacement Considerations

No public confirmed substitute part numbers are listed in the provided documentation. As the entire GAL22V10 line is discontinued, users should consult Lattice Semiconductor for current CPLD recommendations that offer equivalent I/O counts and performance metrics.