ATF1500A-10JC

Overview

The ATF1500A-10JC is a high-performance, electrically erasable complex programmable logic device (CPLD) manufactured by Microchip Technology. It features 32 macrocells and up to 36 inputs within a 44-pin PLCC package. The device operates on a 5V supply with a maximum pin-to-pin delay of 10 ns and supports registered operation at frequencies up to 76.9 MHz. Built on advanced Flash technology, it offers full reprogrammability with 100 program/erase cycles and 20-year data retention. Key electrical parameters include a standby current of 70 mA (commercial) or 100 mA (industrial), input low voltage max of 0.8 V, and output high voltage min of 2.4 V.

Feature Summary

• Advanced Flash memory technology enabling complete reprogrammability and non-volatile storage without UV erasure.
• Flexible macrocell architecture supporting D, T, JK, SR flip-flops, and flow-through latch configurations.
• Global and regional bus architecture providing fully connected input and feedback paths for all macrocells.
• Pin-controlled power-down mode reducing supply current to less than 10 mA when the PD pin is active.

Applications

• Replacing legacy TTL, SSI, MSI, and classic PLD logic functions in embedded systems.
• Implementing state machines requiring reliable initialization via power-up reset circuitry.
• Designs needing flexible I/O configuration with individual output enable and slew rate control.

Procurement Notes

Verify the specific speed grade suffix (-10) matches the required timing constraints of 10 ns propagation delay. Confirm the 'JC' suffix corresponds to the 44-lead PLCC package and commercial temperature range (0°C to 70°C). Check for RoHS compliance status as green package options may be available for industrial variants. Ensure design tools support backward compatibility with existing ATF1500/L software if migrating from older devices.

Selection Notes

Select this component when a moderate density CPLD with 32 macrocells is sufficient for the logic design. The -10 speed grade provides a balance between performance and power consumption for applications running below 76.9 MHz. Consider the ATF1500AL variant if lower standby current (3 mA) is critical, noting that AL parts are typically available in industrial temperature ranges. Verify that the 5V supply voltage aligns with the system's power rails, as the device does not support 3.3V operation directly.

Part Context

The ATF1500A series belongs to the high-density EPLD family designed for backward compatibility with earlier Atmel ATF1500/L devices. It utilizes an advanced Flash process that eliminates the need for special erasing equipment. The device integrates global clock, reset, and output enable signals to simplify logic placement and prevent pinout changes during design iterations.

Replacement Considerations

For fast-speed grades, the ATF1502AS is a pin-compatible replacement. For other speed grades, suggested replacements are available in Green packages. Users should consult the ordering information table for specific cross-references based on temperature and speed requirements.