ATF20V8BQ-10JC

Overview

The ATF20V8BQ-10JC is a high-performance Electrically-Erasable Programmable Logic Device (EE PLD) manufactured by Microchip Technology. It utilizes advanced Flash memory technology to provide reprogrammability with 100% testing and 2,000 erase/write cycles. The device features eight macrocells, each allocated eight product terms, supporting registered, complex, or simple logic modes. It operates at a maximum pin-to-pin propagation delay of 10 ns with a typical clock-to-output delay of 7 ns. Power consumption in standby mode is limited to 35 mA, while active current reaches 40 mA at 15 MHz. The component is housed in a 28-lead Plastic J-leaded Chip Carrier (PLCC) package and supports commercial temperature ranges from 0°C to 70°C.

Feature Summary

• Industry-standard architecture emulating many 24-pin PALs with low-cost software tools
• High-speed performance with 7.5 ns to 10 ns pin-to-pin delay options
• Advanced Flash technology enabling reprogrammability and 2,000 erase/write cycles
• CMOS and TTL compatible inputs and outputs with internal pull-up resistors

Applications

• Direct replacement for 20R8 family and most 24-pin combinatorial PLDs
• State machine initialization requiring power-up reset functionality
• Logic functions requiring registered, combinatorial I/O, or dedicated output configurations

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and temperature range. The 'JC' suffix indicates a 28-lead PLCC package within the commercial temperature range. Ensure compatibility with existing PLD programmers that support Atmel/Atmosic Flash PLD architectures. Confirm RoHS compliance status if required for the specific manufacturing process.

Selection Notes

Select this device when replacing obsolete 24-pin PALs such as the 20R8, 20RP8, 20L8, or 20H8 families. Choose the BQ variant for reduced power consumption compared to the standard B version, with standby current at 35 mA versus 50 mA. Ensure the design accommodates the 5V ± 5% supply voltage requirement for commercial grade operation. Consider the three operational modes (Registered, Complex, Simple) to optimize product term usage for the specific logic complexity.

Part Context

This component belongs to the ATF20V8B family of high-performance EE PLDs. It shares architectural similarities with the ATF20V8B and ATF20V8BQL variants, differing primarily in power specifications and speed grades. The family is designed to provide a superset of generic architectures for direct replacement of legacy GAL and PAL devices. It represents a transition from fuse-based PLDs to reprogrammable Flash technology.

Replacement Considerations

Public confirmed substitute part numbers include ATF20V8B-10JC and ATF20V8B-10JI for standard speed grades. For lower power applications, consider the ATF20V8BQL series. Verify pinout compatibility with the target 24-pin PAL footprint, as the ATF20V8B uses a 28-pin PLCC package which may require adapter solutions or PCB redesign.