ATF16V8BQL-15JU

Overview

The ATF16V8BQL-15JU is a high-performance CMOS Electrically-Erasable Programmable Logic Device (EEPLD) manufactured by Microchip Technology. It utilizes Atmel's Flash memory technology and features an industrial temperature range of -40°C to +85°C. The device operates at a supply voltage of 5.0V ± 10% and provides a maximum pin-to-pin propagation delay of 15 ns. It contains eight macrocells, ten input pins, and eight I/O pins within a 20-lead Plastic J-leaded Chip Carrier (PLCC) package. Key electrical characteristics include a typical standby current of 5 mA and support for 100 erase/write cycles with 20-year data retention.

Feature Summary

• Industrial Temperature Range: Specified over -40°C to +85°C with 5.0V ± 10% supply voltage tolerance.
• Low Power Consumption: Features automatic Input Transition Detection (ITD) circuitry that powers down the device to a typical 5 mA standby mode when idle.
• Flash Memory Architecture: Utilizes electrically-erasable Flash technology allowing reprogramming, 2000V ESD protection, and 200mA latchup immunity.
• Universal Compatibility: Emulates many 20-pin PAL devices through three software-configurable modes: Registered, Complex, and Simple.

Applications

• Direct replacement for 16R8 family and most 20-pin combinatorial PLDs in legacy designs.
• State machine initialization requiring power-up reset functionality.
• PCI-compliant logic interface applications.
• Industrial control systems operating within the specified temperature range.

Procurement Notes

Verify the ordering suffix 'JU' corresponds to the 20-lead PLCC package and Pb/Halide-free/RoHS compliant construction as listed in the datasheet ordering information. Confirm the speed grade '-15' indicates a maximum 15 ns propagation delay. Ensure the design accounts for the industrial temperature range (-40°C to +85°C) and the specific DC/AC electrical characteristics defined for the BQL variant.

Selection Notes

Select the ATF16V8BQL-15JU when an industrial temperature rating and low standby power consumption are required. The 'QL' suffix denotes the inclusion of Input Transition Detection (ITD) for automatic power-down, distinguishing it from the standard ATF16V8B-15JU. Choose this part if the application requires a 20-lead PLCC surface-mount package and compatibility with standard PLD programming tools like Atmel WinCUPL.

Part Context

The ATF16V8BQL-15JU belongs to the ATF16V8B(QL) series of SPLDs. This series represents a superset of generic architectures designed to replace older PAL devices. The 'QL' variant specifically adds low-power features compared to the standard 'B' version. The device is part of Microchip's portfolio following the acquisition of Atmel, maintaining backward compatibility with existing PLD designs.

Replacement Considerations

The ATF16V8BQ series has been replaced by the ATF16V8B and ATF16V8BQL variants. When replacing older commercial-grade parts, ensure the new industrial-grade component meets the thermal requirements. Verify that the target system supports the 5.0V ± 10% voltage range and that the 20-lead PLCC footprint matches the PCB layout.