ATF16V8BQL-15PU

Overview

The ATF16V8BQL-15PU is a high-performance CMOS Electrically-Erasable Programmable Logic Device (EE PLD) manufactured by Microchip Technology. It utilizes Atmel's Flash memory technology and features an industry-standard architecture compatible with 20-pin PALs. The device includes eight macrocells, ten input pins, and eight I/O pins within a 20-lead PDIP package. It operates at a maximum pin-to-pin delay of 15 ns and supports a supply voltage of 5.0V ± 10%. Key electrical characteristics include a typical standby current of 5 mA due to Input Transition Detection (ITD), 2000V ESD protection, and 200mA latchup immunity. It functions reliably in industrial temperatures from -40°C to +85°C.

Feature Summary

• Automatic low-power standby mode (5 mA typical) via Input Transition Detection (ITD).
• Flash-based reprogrammability with 100 erase/write cycles and 20-year data retention.
• CMOS and TTL compatible inputs/outputs with internal pull-up resistors.
• PCI-compliant design supporting direct replacement for 16R8 series devices.

Applications

• Industrial control logic emulation.
• State machine initialization requiring power-up reset.
• Replacement for legacy 20-pin combinatorial PLDs.

Procurement Notes

Verify the specific ordering suffix 'PU' corresponds to the 20-lead Plastic Dual Inline Package (PDIP) as defined in the datasheet ordering table. Confirm that the 'QL' suffix indicates the inclusion of the automatic low-power standby feature, distinguishing it from the standard ATF16V8B variant. Ensure compliance with RoHS standards if lead-free packaging is required for the application environment.

Selection Notes

Select this component when a registered or complex mode PLD with low standby power is required. The 15 ns speed grade is suitable for applications operating up to 62 MHz with no feedback. Consider the ITD feature for battery-powered or energy-sensitive systems. Verify that the 20-lead PDIP footprint matches the PCB layout constraints compared to surface mount alternatives like SOIC or PLCC.

Part Context

This part belongs to the ATF16V8B(QL) family, which supersedes the older ATF16V8BQ series. The 'QL' designation specifically denotes the version equipped with edge-sensing low-power circuitry. The device is designed to emulate various 20-pin PAL architectures, including 16R8, 16L8, and 16H8, depending on the software compiler mode selected during programming.

Replacement Considerations

Direct logical replacements include other ATF16V8BQL variants with different packages (e.g., ATF16V8BQL-15JU for PLCC) or standard ATF16V8B-15PU if low-power standby is not critical. Ensure any substitute maintains the 15 ns propagation delay and industrial temperature range specifications.