ISPGAL22LV10-10LJ

Programmable Logic Device Pld Overview

The ISPGAL22LV10-10LJ is a Simple Programmable Logic Device (SPLD) from Lattice Semiconductor, belonging to the ispGAL family. It features an E2CMOS technology with 22 input/output pins and 10 macrocells. The device supports in-system programmability but lacks IEEE-1149.1 boundary scan registers, classifying it as compatible rather than compliant with the standard. Key electrical parameters include a maximum operating frequency of 125 MHz and a typical propagation delay of 10 ns. It operates within a voltage range of 4.5 V to 5.5 V and is available in PLCC-28 packaging.

Programmable Logic Device Pld Feature Summary

• In-system programmability via proprietary interface without IEEE-1149.1 boundary scan compliance
• High-speed performance with 125 MHz max frequency and 10 ns propagation delay
• E2CMOS non-volatile technology allowing repeated reprogramming
• 22 I/Os with 10 macrocells for flexible logic implementation

Programmable Logic Device Pld Applications

• Address decoding and chip select generation in embedded systems
• Bus protocol conversion between legacy and modern interfaces
• Simple state machine implementation for industrial control
• Logic replacement for obsolete discrete gate circuits

Programmable Logic Device Pld Procurement Notes

Verify component authenticity through authorized Lattice distributors or certified secondary market suppliers. Check for date codes and lot traceability to ensure compliance with RoHS directives if required by the application. Confirm package integrity for PLCC-28 sockets. Note that this part may be subject to end-of-life notifications; review current availability status before finalizing design-in decisions.

Programmable Logic Device Pld Selection Notes

Select the ISPGAL22LV10-10LJ when designs require moderate I/O count and simple logic functions with in-system reprogrammability. Choose this over IEEE-1149.1 compliant parts like the GAL22V10D if boundary scan testing is not required and cost optimization is prioritized. Ensure the system power supply remains stable between 4.5 V and 5.5 V. Consider thermal dissipation requirements given the 160 mA operating current under full load conditions.

Programmable Logic Device Pld Part Context

This component belongs to the ispGAL series, which bridges the gap between traditional GALs and more complex CPLDs. Unlike the GAL22V10D, which offers 1149.1 compatibility, the ispGAL variant focuses on ease of programming and lower cost. It serves as a drop-in replacement for many standard GAL22V10 applications where boundary scan is unnecessary. The family is known for high reliability and long-term availability in industrial markets.

Programmable Logic Device Pld Replacement Considerations

Direct pin-compatible replacements include other GAL22V10 variants such as GAL22V10D-10LJI, though functional differences exist regarding testability standards. Verify voltage levels and speed grades match the original design specifications. For new designs requiring boundary scan, consider upgrading to Lattice's ispLSI or MACH families instead of substituting with non-compliant SPLDs.