ATF16V8CZ-15XC

Overview

The ATF16V8CZ-15XC is a high-performance Electrically Erasable CMOS Programmable Logic Device (EEPLD) manufactured by Microchip Technology. It utilizes Flash memory technology to provide reprogrammability with 100% test coverage and 2,000V ESD protection. The device features eight macrocells, each allocated eight product terms, supporting registered, complex, or simple logic configurations. Key electrical specifications include a maximum pin-to-pin propagation delay of 15 ns, a typical standby current of 5 µA in power-down mode, and operation over a commercial temperature range of 0°C to +70°C. It operates on a 5V supply with ±5% tolerance.

Feature Summary

• High-speed performance with 15 ns maximum propagation delay and up to 62 MHz operating frequency.
• Low-power architecture featuring 5 µA typical standby current and automatic edge-sensing power-down mode.
• Reprogrammable Flash memory technology allowing 100 erase/write cycles and 20-year data retention.
• CMOS and TTL compatible inputs/outputs with internal pin-keeper circuits eliminating the need for external pull-up resistors.

Applications

• Direct replacement for industry-standard 20-pin PAL devices such as the 16R8 family.
• Complex logic function implementation in systems requiring low power consumption during idle states.
• State machine initialization utilizing built-in power-up reset and register preload capabilities.
• PCI-compliant digital logic interfacing applications.

Procurement Notes

Verify that the specific ordering suffix 'XC' corresponds to the TSSOP-20 package variant as defined in the manufacturer's ordering guide. Confirm compliance requirements, noting that standard versions may differ from Green (Pb/Halide-free/RoHS Compliant) options which utilize different suffixes such as 'XU'. Ensure the design accounts for the commercial temperature range specification of 0°C to +70°C, as industrial variants require distinct part numbers.

Selection Notes

Select this component when a direct architectural substitute for legacy 20-pin PALs like the GAL16V8 or 16R8 is required. The ATF16V8CZ supports three configuration modes: Registered, Complex, and Simple, allowing flexibility in output enable control and feedback routing. Designers must ensure the application voltage remains within 5V ±5% for commercial grade operation. Consider the 15 ns speed grade if system timing margins are tight, as faster 12 ns variants are also available in the series.

Part Context

The ATF16V8CZ belongs to the ATF16V8CZ family of EEPLDs, designed to supersede older EEPROM-based PLDs. This family offers enhanced reliability through Flash technology, providing higher endurance and lower power consumption compared to previous generations. The device integrates an industry-standard pinout, facilitating easy migration from discrete logic or older programmable logic solutions without significant PCB layout changes.

Replacement Considerations

For RoHS compliant replacements, consider the ATF16V8CZ-15XU, which shares the same electrical characteristics and TSSOP-20 package but meets Green packaging standards. For industrial temperature ranges (-40°C to +85°C), the ATF16V8CZ-15XI or ATF16V8CZ-15XU should be selected instead of the commercial grade ATF16V8CZ-15XC.