ATF16V8B-15JI

Overview

The ATF16V8B-15JI is a high-performance CMOS electrically erasable programmable logic device (PLD) manufactured by Microchip Technology. It utilizes Atmel’s Flash memory technology and features an industry-standard architecture that emulates many 20-pin PALs. The device operates at a maximum pin-to-pin delay of 15 ns with a clock-to-output delay of 10 ns. It supports industrial temperature ranges (-40°C to +85°C) and requires a 5V ± 10% power supply. Key electrical characteristics include a standby current of up to 80 mA and active current of up to 95 mA. The component is housed in a 20-lead Plastic J-leaded Chip Carrier (PLCC) package.

Feature Summary

• High-speed performance with 15 ns maximum input-to-non-registered output delay
• Flash-based reprogrammable architecture with 100 erase/write cycles and 20-year data retention
• CMOS and TTL compatible inputs/outputs with internal pull-up resistors
• Supports Registered, Complex, and Simple modes for direct replacement of 16R8 series and other 20-pin PLDs

Applications

• Industrial control systems requiring reliable programmable logic
• Direct replacement for obsolete 20-pin PAL devices such as 16R8, 16L8, and 16H8
• Complex digital logic implementation in commercial and industrial environments

Procurement Notes

Verify the specific ordering suffix 'JI' corresponds to the Industrial temperature range (-40°C to +85°C) and the 20-lead PLCC package configuration. Confirm that the required speed grade of 15 ns meets the system timing constraints. Ensure compatibility with standard PLD programmers for Flash programming and erasing operations.

Selection Notes

Select this component when a reprogrammable solution is needed to replace legacy 20-pin PAL architectures. The Industrial temperature rating makes it suitable for harsher environments compared to Commercial variants. Consider the higher power consumption (up to 95 mA active) relative to low-power BQL variants if power efficiency is a critical design constraint.

Part Context

This part belongs to the ATF16V8B family, which includes variations like ATF16V8BQ and ATF16V8BQL offering different power profiles. The ATF16V8B series provides a superset of generic architectures found in earlier PAL devices, allowing flexible configuration through software compilers to emulate various standard logic functions.

Replacement Considerations

The ATF16V8B-15JI can directly replace 16R8, 16RP8, 16R6, 16RP6, 16R4, and 16RP4 devices in Registered mode. In Complex mode, it replaces 16L8, 16H8, and 16P8. In Simple mode, it substitutes 10L8, 10H8, 10P8, 12L6, 12H6, 12P6, 14L4, 14H4, 14P4, 16L2, 16H2, and 16P2.