ATF16V8CZ-15PU

Overview

The ATF16V8CZ-15PU is an Electrically Erasable Programmable Logic Device (EEPLD) manufactured by Microchip Technology. It utilizes EECMOS technology with Flash memory, offering a maximum pin-to-pin propagation delay of 15 ns and a typical standby current of 5 µA. The device features 8 macrocells, 9 inputs, and 8 I/Os in a 20-pin PDIP package. It operates within an industrial temperature range of -40°C to +85°C at 5V ±10%. Key specifications include 200 mA latchup immunity, 2,000V ESD protection, and support for registered, complex, and simple logic modes.

Feature Summary

• High-speed performance with 15 ns maximum propagation delay
• Low-power operation featuring 5 µA typical standby current via edge-sensing power-down mode
• Advanced Flash technology allowing reprogramming with 100 erase/write cycles and 20-year data retention
• Universal architecture emulating various 20-pin PAL devices across three configurable modes

Applications

• Direct replacement for 16R8 family and most 20-pin combinatorial PLDs
• State machine initialization requiring power-up reset functionality
• Systems requiring automatic power-down during idle or slow clock periods
• Applications needing CMOS and TTL compatible inputs and outputs

Procurement Notes

Verify the ordering suffix 'PU' corresponds to the 20-lead Plastic Dual Inline Package (PDIP). Confirm the 'Z' indicates RoHS compliance and lead-free construction as per Green Package options. Ensure the speed grade '-15' matches the required 15 ns timing constraints for industrial temperature applications ranging from -40°C to +85°C.

Selection Notes

Select this component when replacing legacy 20-pin PALs such as the 16R8 series. Choose the Industrial temperature variant (-40°C to +85°C) over Commercial if environmental conditions exceed 70°C. Consider the 15 ns delay limit for system timing budgets. Verify that the 8 macrocell capacity suffices for the target logic complexity before opting for higher-density alternatives.

Part Context

This part belongs to the ATF16V8CZ series, which supersedes earlier commercial variants like the ATF16V8C. The 'Z' suffix denotes Green packaging compliant with RoHS standards. It shares the same logical architecture as the ATF16V8B but offers improved speed characteristics and lower power consumption through advanced Flash memory technology.

Replacement Considerations

The ATF16V8CZ-15PI serves as the non-RoHS equivalent for the same electrical specifications. For commercial temperature applications only, the ATF16V8CZ-15PC is available. Direct pin-compatible replacements for specific PAL models can be achieved by configuring the device into Registered, Complex, or Simple modes using appropriate compiler software.