ATF20V8B-15SI

Overview

The ATF20V8B-15SI is a high-performance Electrically Erasable Programmable Logic Device (EEPLD) manufactured by Microchip Technology. It utilizes advanced Flash memory technology to provide reprogrammability with 100 erase/write cycles and 20-year data retention. The device features 8 macrocells, supporting complex logic functions through registered, complex, or simple modes. It operates at a maximum pin-to-pin delay of 15 ns and is designed for industrial temperature ranges (-40°C to +85°C). Packaged in a 24-lead Plastic Gull-wing Small Outline (SOIC), it offers CMOS and TTL compatible inputs and outputs with internal pull-up resistors.

Feature Summary

• Industry-standard architecture emulating many 24-pin PALs with 8 macrocells
• High-speed performance with 15 ns maximum pin-to-pin delay
• Advanced Flash technology allowing full reprogrammability and 100% testing
• Industrial temperature range operation from -40°C to +85°C

Applications

• Direct replacement for 20R8 family and most 24-pin combinatorial PLDs
• Complex logic function implementation using configurable macrocells
• State machine initialization with power-up reset capabilities

Procurement Notes

Verify the package type corresponds to the 'S' suffix, indicating a 24-lead SOIC. Confirm the 'I' suffix denotes the industrial temperature grade (-40°C to +85°C). Ensure programming hardware supports the specific ATF20V8B Flash architecture. Check for RoHS compliance if lead-free requirements are necessary, as green package options may have different suffixes.

Selection Notes

Select this component when a direct drop-in replacement for legacy 24-pin PALs is required in industrial environments. The 15 ns speed grade balances performance with power consumption for standard applications. Consider the BQL variant if lower standby current (5 mA) is critical, as the standard B version draws up to 100 mA active current. Ensure software tools support the specific configuration modes needed for the design.

Part Context

This part belongs to the ATF20V8B family of EEPLDs, which also includes variants like ATF20V8B-7JC and ATF20V8BQ-10PC. The family shares a common superset architecture allowing emulation of various PAL devices. The ATF20V8B-15SI specifically targets industrial applications requiring robust logic control with reprogrammable flexibility compared to one-time programmable counterparts.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.