ATF16V8CZ-15SU

Overview

The ATF16V8CZ-15SU is a high-performance Electrically Erasable CMOS (EECMOS) programmable logic device manufactured by Microchip Technology. It utilizes Flash memory technology to provide reprogrammability with 100% test coverage and 2,000V ESD protection. The component features eight macrocells, each allocated eight product terms, supporting registered, complex, or simple logic configurations. It operates within an industrial temperature range of -40°C to +85°C and accepts a 5V ±10% power supply. Key electrical specifications include a maximum pin-to-pin propagation delay of 15 ns, a typical standby current of 5 µA, and compatibility with both CMOS and TTL input/output standards.

Feature Summary

• High-speed performance with a maximum 15 ns propagation delay and up to 62 MHz operating frequency in no-feedback mode.
• Low-power architecture featuring a 5 µA typical edge-sensing power-down mode and internal pin-keeper circuits to eliminate floating inputs.
• Reprogrammable via advanced Flash technology, offering 100 erase/write cycles, 20-year data retention, and a security fuse for content protection.
• Universal architecture emulating various 20-pin PAL devices across Registered, Complex, and Simple modes.

Applications

• Direct replacement for legacy 16R8, 16L8, and 10L8 family PLDs in existing hardware designs.
• State machine initialization requiring automatic power-up reset functionality.
• Systems requiring low-power standby states with asynchronous logic applications.
• PCI-compliant interface logic implementation.

Procurement Notes

Verify the ordering suffix 'SU' corresponds to the 20-lead SOIC package and Industrial temperature range (-40°C to +85°C). Confirm RoHS compliance status, as datasheet section 10.3 lists Green package options for this speed grade. Ensure programming equipment supports the specific JEDEC file generation required for preload and security fuse configuration.

Selection Notes

Select the ATF16V8CZ-15SU when an industrial temperature range is required alongside a 15 ns speed grade. Compare against commercial variants if the application environment remains within 0°C to 70°C, noting that commercial parts may require de-rating for industrial use. Evaluate macrocell configuration needs; ensure the design does not exceed the eight product terms per macrocell limit or conflict with dedicated clock/output enable pin assignments in registered mode.

Part Context

This component belongs to the ATF16V8CZ series, which represents the electrically erasable Flash-based evolution of the earlier ATF16V8C SPLD line. While the ATF16V8C uses UV EPROM technology, the ATF16V8CZ variant eliminates the need for UV erasure, allowing for in-system reprogramming. The 'SU' suffix specifically denotes the surface-mount SOIC package option within the industrial temperature subset of this family.

Replacement Considerations

ATF16V8CZ-15SI (PDIP package), ATF16V8CZ-15JI (PLCC package), ATF16V8CZ-15XU (TSSOP package).