ATF22V10BQ-15JC

Overview

The ATF22V10BQ-15JC is a high-performance Electrically Erasable Programmable Logic Device (EEPLD) utilizing Atmel Flash memory technology. It features 10 macrocells, 22 inputs, and 10 I/O lines in a 24-pin PLCC package. The device operates at a maximum propagation delay of 15 ns with a typical standby supply current of 35 mA. It supports a 5V power supply within ±10% tolerance and functions across the full military temperature range of -55°C to +125°C.

Feature Summary

• Advanced Flash Technology: Reprogrammable with 100 erase/write cycles and 20-year data retention.
• High Reliability: 2,000V ESD protection and 200mA latchup immunity.
• CMOS/TTL Compatibility: Includes internal input and I/O pull-up resistors for known logic states.
• Power Management: Low standby current of 35 mA (typical) for the BQ speed grade.

Applications

• State machine initialization using power-up reset and register preload features.
• General-purpose digital logic replacement in military and industrial systems.
• PCI compliant interface logic design.

Procurement Notes

Verify that the specific ordering suffix matches the required package type and environmental rating. The datasheet indicates that commercial and industrial grade leaded part offerings have been removed from recent revisions; ensure the component meets the necessary military or industrial specifications for the intended application environment.

Selection Notes

Select this model for applications requiring reprogrammability without UV erasure. The BQ speed grade offers lower power consumption compared to standard B grades but maintains a 15 ns max propagation delay. Ensure the system design accommodates the 5V ±10% supply voltage requirement for military/industrial operation.

Part Context

This component belongs to the ATF22V10B family of high-performance EEPLDs. It shares the same architectural core as other variants like the ATF22V10B-15GM but differs in package configuration and specific electrical characteristics defined by the ordering code suffixes.

Replacement Considerations

Direct pin-compatible replacements within the same family include ATF22V10B-15GM/883 for ceramic DIP packages or ATF22V10C series devices if speed and power requirements align. Verify package compatibility when substituting surface mount options.

FAQ

How does the power-up reset feature function?

Registers reset to the low state slightly after VCC crosses the reset voltage (VRST). The clock must remain stable during the recovery time (tPR) before driving the clock pin high.

What is the purpose of the security fuse?

Programming the security fuse prevents unauthorized copying of the device's fuse patterns by inhibiting fuse verify and preload operations, though the 64-bit User Signature remains accessible.

Can the registers be preloaded?

Yes, the registers allow loading with either a high or low state to simplify testing and control test sequencing via a JEDEC file generated during compilation.