ATF20V8B-15SC

Overview

The ATF20V8B-15SC is a high-performance electrically-erasable programmable logic device (PLD) from Microchip Technology. It utilizes CMOS Flash memory technology and features 24 pins in a SOIC package. The device operates at a maximum clock frequency of 62 MHz with a typical propagation delay of 15 ns. It provides 8 macrocells, each allocated 8 product terms, supporting registered, complex, or simple modes. Operating voltage is 5V ± 10% for industrial ranges (-40°C to +85°C). Key specifications include 8 I/O lines, 18 dedicated inputs, and internal pull-up resistors.

Feature Summary

• High-speed Electrically-Erasable Flash PLD with 7.5 ns to 25 ns speed grades
• Industry-standard architecture emulating many 24-pin PALs
• CMOS and TTL compatible inputs and outputs with internal pull-ups
• Reprogrammable with 100 erase/write cycles and 20-year data retention

Applications

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

Procurement Notes

Verify the specific ordering suffix 'SC' against the manufacturer's current datasheet to confirm package type and temperature range availability. Ensure compatibility with existing PLD programming hardware and software tools as specified in the Configurable Logic Databook. Check for RoHS compliance status if required by project specifications.

Selection Notes

Select this component when a direct replacement for legacy 24-pin PAL devices is needed. Choose the -15 speed grade for applications requiring up to 15 ns propagation delay. Consider the BQ or BQL variants for lower power consumption requirements, noting their different standby and active current specifications compared to the standard B version.

Part Context

The ATF20V8B belongs to the ATF20V8B(Q)(L) series of high-performance EE PLDs. This series offers multiple speed grades and power options. The device supports three operational modes: Registered, Complex, and Simple, allowing flexible configuration for various logic design needs. It is part of Atmel's (now Microchip's) proven Flash memory technology line.

Replacement Considerations

The ATF20V8B can directly replace the 20R8 family and most 24-pin combinatorial PLDs. Specific emulation JEDEC files are available for devices like 20R8, 20RP8, 20L8, 20H8, 20P8, 14L8, 14H8, 14P8, 16L6, 18H6, 16P6, 18L4, 18H4, 18P4, 20L2, 20H2, and 20P2.