ATF22V10B-15GM/883

Overview

The ATF22V10B-15GM/883 is a high-performance CMOS electrically erasable programmable logic device (PLD) utilizing Atmel Flash memory technology. It features 10 macrocells, 22 inputs, and 10 I/Os in a CDIP-24 package. The maximum propagation delay is 15 ns, with a maximum operating frequency of 83.3 MHz. It operates at 5 V ± 10% and supports a temperature range of -55°C to +125°C. Standby current is typically 65 mA for military grade. Key features include internal pull-ups, power-up reset, register preload, and a security fuse.

Feature Summary

• Advanced Flash Technology: Electrically erasable/reprogrammable with 100 erase/write cycles and 20-year data retention.
• High Reliability: 200mA latchup immunity, 2000V ESD protection, and full military temperature range (-55°C to +125°C).
• Functional Features: Includes internal input/I/O pull-ups, asynchronous reset, synchronous preset, and power-up reset circuitry.
• Security & Signature: Single security fuse prevents unauthorized copying; 64-bit user signature word remains accessible.

Applications

• State machine initialization requiring power-up reset functionality.
• Military applications requiring MIL-STD-883 compliance and Class B qualification.
• Systems needing reprogrammable logic with low-cost software tools.

Procurement Notes

Verify the ordering suffix 'GM/883' corresponds to the 24-lead Ceramic Dual Inline Package (CDIP-24) and Military/883C Class B qualification. Confirm that the specific speed grade (-15) matches the required 15 ns maximum propagation delay. Ensure the procurement source provides documentation confirming compliance with DSCC DWG requirements for military parts.

Selection Notes

Select this part when a 15 ns propagation delay is sufficient for the target application's timing constraints. Compare against the ATF22V10B-10GM/883 if faster switching (10 ns) is required. Consider the ATF22V10BQL series only if lower power consumption is critical, noting potential differences in package or electrical characteristics.

Part Context

This component belongs to the ATF22V10B family of high-performance EEPLDs. It is designed as a drop-in replacement for standard PAL devices but offers non-volatile reprogrammability via Flash technology. The '/883' suffix indicates adherence to MIL-STD-883 standards, distinguishing it from commercial or industrial variants.

Replacement Considerations

ATF22V10B-10GM/883 is a verified faster-speed substitute within the same package and qualification class.

FAQ

How does the power-up reset feature function?

Registers reset to the low state when VCC crosses the VRST threshold (3.8V to 4.5V). The clock must remain stable during the recovery time (tPR) after reset occurs.

What is the purpose of the security fuse?

Programming the security fuse inhibits fuse verify and preload functions to prevent unauthorized copying of the device's logic pattern, though the 64-bit User Signature remains accessible.

Can unused inputs float?

Yes, the device includes internal weak pull-up resistors on all inputs and I/Os, ensuring they float to VCC and maintain known states if not externally driven.