ATF16V8CZ-15JI

Overview

The ATF16V8CZ-15JI is an Electrically Erasable Programmable Logic Device (EEPLD) manufactured by Microchip Technology. It features a high-performance EECMOS architecture with 8 macrocells and 20 I/O pins in a PLCC package. The device offers a maximum pin-to-pin propagation delay of 15 ns and operates at frequencies up to 62 MHz. It functions within a supply voltage range of 4.5 V to 5.5 V, consuming typically 105 mA during operation and dropping to 5 µA in standby mode. The component supports industrial temperature ranges from -40°C to +85°C.

Feature Summary

• High-speed performance with 15 ns maximum propagation delay and 62 MHz operating frequency.
• Low-power consumption featuring 5 µA typical standby current via edge-sensing power-down mode.
• Advanced Flash technology enabling reprogrammability with 100% test coverage and 2,000V ESD protection.
• CMOS and TTL compatible inputs/outputs with internal pin-keeper circuits to eliminate floating states.

Applications

• Direct replacement for 16R8 family and other 20-pin combinatorial PLDs.
• PCI-compliant logic interface designs.
• State machine initialization requiring automatic power-up reset functionality.
• Systems requiring low-power asynchronous applications or slow clock domains.

Procurement Notes

Verify the ordering suffix 'I' confirms the Industrial temperature range (-40°C to +85°C). Confirm the 'J' suffix corresponds to the 20-lead Plastic J-leaded Chip Carrier (PLCC) package. Ensure the datasheet version matches the required specifications, as older revisions may lack Green package options. Cross-reference the specific speed grade '-15' against system timing requirements.

Selection Notes

Select this model when replacing legacy PAL devices such as the 16R8, 16L8, or 10L8 families. Choose the Industrial variant over Commercial if ambient temperatures may drop below 0°C. Consider the Complex Mode configuration if output enable control is required for combinatorial outputs. Verify that the 5V ±10% supply tolerance aligns with the target power rail stability.

Part Context

This component belongs to the ATF16V8CZ series of high-performance EEPLDs utilizing Atmel’s Flash memory technology. It serves as a superset of generic architectures, allowing flexible configuration into Registered, Complex, or Simple modes. The series supports emulation of various standard PAL devices through software compiler settings, providing architectural versatility for logic design implementations.

Replacement Considerations

The ATF16V8CZ-15JI can replace 16R8, 16RP8, 16L8, 16H8, 10L8, 10H8, and similar 20-pin PAL devices. When substituting commercial parts for industrial use, down-grade one speed grade and de-rate power by 30%. Ensure programming tools support the specific JEDEC file generation for preload and security fuse settings.