ATF20V8BQ-10PC

Overview

The ATF20V8BQ-10PC 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, offering eight macrocells with dedicated product terms. The device operates at a maximum pin-to-pin delay of 10 ns and supports a supply voltage range of 5V ± 5% for commercial applications. Key electrical characteristics include a standby current of 35 mA and an active current of 40 mA. It utilizes advanced Flash technology for reprogrammability and is housed in a 24-lead Plastic Dual Inline Package (PDIP).

Feature Summary

• High-speed EE PLD with 7.5 ns to 10 ns pin-to-pin delay options.
• Reprogrammable using Advanced Flash technology with 100 erase/write cycles.
• Emulates standard 24-pin PAL architectures including 20R8, 20L8, and 20H8 families.
• CMOS and TTL compatible inputs and outputs with internal pull-up resistors.

Applications

• Direct replacement for obsolete 24-pin PAL devices in existing designs.
• Complex logic implementation requiring registered or combinatorial outputs.
• Systems requiring low-power operation with selectable standby modes.
• Industrial control logic where reprogrammability and reliability are critical.

Procurement Notes

Verify the package type corresponds to the 'P' suffix, indicating a 24-lead PDIP. Confirm the temperature grade matches the application requirements; the base model implies commercial range (0°C to 70°C), while industrial variants carry an 'I' suffix. Ensure programming hardware supports Atmel/Microchip EE PLD formats. Check for RoHS compliance if environmental regulations apply, noting that specific green package options may have different ordering codes.

Selection Notes

Select the ATF20V8BQ variant when lower power consumption is required compared to the standard ATF20V8B. The -10 speed grade provides a 10 ns maximum delay suitable for moderate-speed logic applications. Choose the PDIP package for through-hole mounting or prototyping. Consider the ATF20V8BQL for ultra-low power needs, though it offers slower speeds. Ensure the design utilizes the available three operating modes: Registered, Complex, or Simple, based on the specific I/O and feedback requirements.

Part Context

This component belongs to the ATF20V8B family of electrically-erasable programmable logic devices. The 'Q' suffix denotes a specific power optimization tier within the family, positioned between the standard ATF20V8B and the low-power ATF20V8BQL. The '-10' indicates the speed grade, and 'PC' specifies the 24-lead PDIP package with commercial temperature rating. This family is designed to replace legacy GAL and PAL devices.

Replacement Considerations

The ATF20V8BQ-10PC can directly replace many 24-pin PAL devices such as the 20R8, 20RP8, 20L8, 20H8, and 20P8 families when programmed in the appropriate mode. For industrial temperature ranges (-40°C to 85°C), substitute with the ATF20V8BQ-10PI variant. Commercial temperature versions are limited to 0°C to 70°C.