ATF20V8B-10PI

Overview

The ATF20V8B-10PI is a high-performance electrically-erasable programmable logic device (EE PLD) manufactured by Microchip Technology. It features an industry-standard architecture that emulates many 24-pin PALs, providing eight macrocells with dedicated inputs and I/O lines. The device operates at a maximum pin-to-pin delay of 10 ns and supports a supply voltage range of 5V ± 10% for industrial applications (-40°C to +85°C). Key specifications include 7.5 ns setup time, 7 ns clock-to-output delay, and CMOS/TTL compatible inputs and outputs.

Feature Summary

• High-speed Electrically-Erasable Flash PLD with 7.5 ns minimum pin-to-pin delay
• Eight macrocells supporting registered, complex, or simple mode configurations
• Industrial temperature range operation (-40°C to +85°C) with 5V ± 10% supply tolerance
• Advanced Flash technology offering 100 erase/write cycles and 20-year data retention

Applications

• Direct replacement for 20R8 family and most 24-pin combinatorial PLDs
• State machine initialization requiring power-up reset functionality
• Logic functions requiring reprogrammability and low-cost software tools

Procurement Notes

Verify the ordering suffix 'I' confirms the Industrial temperature range (-40°C to +85°C) and 'P' indicates the 24-lead Plastic Dual Inline Package (PDIP). Confirm RoHS compliance status as standard parts may vary; Green Package options are available separately. Ensure programming hardware supports the specific EE PLD architecture for reliable erasing and writing.

Selection Notes

Select the ATF20V8B-10PI when an industrial temperature rating is required alongside a 10 ns speed grade. Compare against commercial variants if operating conditions remain within 0°C to +70°C. Consider lower power options like the BQ or BQL series if system power dissipation limits are critical, noting their different standby and active current specifications.

Part Context

This component belongs to the ATF20V8B family of high-performance EE PLDs. It shares the same core architecture and macrocell count with variants such as the ATF20V8B-7PI (7.5 ns speed) and ATF20V8B-15PI (15 ns speed). The family supports emulation of various PAL devices through configurable modes, allowing flexibility in digital logic design without changing the physical package.

Replacement Considerations

The ATF20V8B-10PI can directly replace 20R8, 20RP8, 20R6, 20RP6, 20R4, and 20RP4 devices when configured in Registered Mode. It also serves as a substitute for 20L8, 20H8, and 20P8 in Complex Mode, and various 14/16/18/20-pin simple PALs in Simple Mode, provided the compiler settings match the target device emulation.