ATF22V10CQZ-20SU

Overview

The ATF22V10CQZ-20SU is an electrically erasable programmable logic device (EEPLD) manufactured by Microchip Technology, formerly Atmel. It features a high-performance CMOS architecture with 12 inputs and 10 I/O macrocells in a 24-pin SOIC package. The device specifies a maximum pin-to-pin propagation delay of 20 ns and supports a maximum operating frequency of 50 MHz. It operates at 5 V with industrial temperature range (-40°C to +85°C). Key electrical characteristics include a typical standby current of 5 µA and a maximum clocked supply current of 80 mA.

Feature Summary

• Zero Standby Power: Utilizes Input Transition Detection (ITD) circuitry to automatically power down when idle, achieving 100 µA worst-case standby current.
• High Reliability: Features 20-year data retention, 100 erase/write cycles, 2,000V ESD protection, and 200mA latchup immunity.
• Universal Architecture: Emulates most 24-pin PAL devices with 10 macrocells configurable for registered or combinatorial outputs.
• Latch Feature: Pin keeper circuits hold inputs to the previous logic state when not driven externally.

Applications

• Replacement for legacy 22V10 family PLDs
• State machine initialization requiring power-up reset
• Industrial control logic systems

Procurement Notes

Verify that the component is sourced from authorized distributors to ensure authenticity. Confirm the package type matches the 'S' suffix (24-lead SOIC) and the speed grade corresponds to the '-20' designation. Check for RoHS compliance status as older non-compliant variants exist within the same family.

Selection Notes

Select this part for applications requiring low standby power and reprogrammability. Ensure the design accommodates the 20 ns maximum propagation delay. Verify that the 5V ±10% supply voltage range aligns with the system power rails. Consider the SOIC package dimensions if space constraints are critical compared to DIP or PLCC options.

Part Context

This device belongs to the ATF22V10CQZ series, which succeeded the obsolete ATF22V10CZ. The 'Q' designation indicates a combination of low high-frequency ICC from the 'Q' design with the zero-power features of the 'Z' design. It is designed as a drop-in replacement for standard 24-pin combinatorial PLDs.

Replacement Considerations

The ATF22V10CZ is obsolete and replaced by the ATF22V10CQZ. When replacing older ATF22V10C parts, ensure the new CQZ variant meets the timing requirements, as the CQZ-20 has a 20 ns delay compared to faster CZ variants.

FAQ

How does the device achieve zero standby power?

It uses patented Input Transition Detection (ITD) circuitry that automatically powers down the device to zero power mode when it is idle.

What is the maximum operating frequency for the ATF22V10CQZ-20SU?

The maximum operating frequency is 50 MHz, determined by the 20 ns propagation delay.

Can unused product terms affect power consumption?

No, unused product terms are automatically disabled by the compiler to decrease power consumption.