ATF16LV8C-15XC

Overview

The ATF16LV8C-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% testing coverage. The device features an industry-standard architecture emulating 20-pin PALs, offering eight macrocells and up to eight product terms per output. It operates within a voltage range of 3.0V to 5.5V and supports commercial temperature ranges from 0°C to +70°C. Key electrical parameters include a maximum pin-to-pin propagation delay of 15 ns, a typical standby current of 100 nA, and a maximum power-down supply current of 5 µA when controlled via the PD pin.

Feature Summary

• Ultra-low power consumption with 100 nA typical standby current and 5 µA max in power-down mode
• High-speed performance with 15 ns maximum pin-to-pin delay
• Advanced Flash technology enabling 100 erase/write cycles and 20-year data retention
• CMOS and TTL compatible inputs/outputs with 5V tolerant I/O pins

Applications

• Direct replacement for legacy 20-pin combinatorial PLDs and 16R8 family devices
• Complex logic function implementation in embedded systems
• State machine initialization requiring power-up reset capabilities
• Low-power digital circuit designs utilizing pin-controlled power-down modes

Procurement Notes

Verify package type compatibility, as the 'XC' suffix indicates a TSSOP-20 surface mount package. Confirm that the commercial temperature rating (0°C to +70°C) meets system requirements, noting that industrial variants (-40°C to +85°C) use different ordering codes such as XI. Ensure design tools support the specific ATF16LV8C architecture for programming and verification.

Selection Notes

Select this component when a low-cost, reprogrammable logic solution is needed to replace fixed-function PALs. The 15 ns speed grade is suitable for moderate-frequency applications. Consider the power-down feature if system energy efficiency is critical; configure Pin 4 as the PD control input to achieve ultra-low standby currents. Verify that the 20-lead TSSOP footprint fits the PCB layout constraints compared to DIP or SOIC alternatives.

Part Context

The ATF16LV8C belongs to the ATF16LV8C series of EEPLDs, which are designed to be software-compatible with older Atmel and industry-standard 20-pin programmable logic devices. This series allows designers to migrate existing designs to modern Flash-based technology without changing hardware architecture. The device integrates both registered and combinatorial outputs within a single 20-pin package.

Replacement Considerations

For industrial temperature range requirements (-40°C to +85°C), consider the ATF16LV8C-15XI. For lower speed grades, the ATF16LV8C-10XC offers a 10 ns delay. Package variations include PDIP (PC suffix) and SOIC (SC suffix). Verify that any substitute maintains the same 20-pin pinout and Flash memory reprogrammability characteristics.