ATF16V8BQL-15SU

Overview

The ATF16V8BQL-15SU 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 industrial temperature range of -40°C to +85°C with a 5.0V ±10% supply voltage. The device provides a maximum pin-to-pin delay of 15ns, 8 macrocells, and 8 I/O pins within a 20-lead SOIC package. Key electrical characteristics include a typical standby current of 5mA due to Input Transition Detection (ITD), 2000V ESD protection, and 200mA latchup immunity. It supports reprogramming up to 100 cycles with 20-year data retention.

Feature Summary

• High-speed performance with 15ns maximum pin-to-pin delay and up to 62MHz internal feedback frequency.
• Low-power operation featuring automatic 5mA standby mode via Input Transition Detection (ITD).
• Industrial temperature range (-40°C to +85°C) with RoHS-compliant green packaging options.
• Advanced Flash technology allowing 100 erase/write cycles, 20-year data retention, and 2000V ESD protection.

Applications

• Direct replacement for 16R8 family and most 20-pin combinatorial PLDs.
• Industrial control systems requiring robust logic functions in harsh environments.
• PCI-compliant digital interface designs.

Procurement Notes

Verify the specific ordering suffix 'SU' corresponds to the 20-lead SOIC package variant as defined in the manufacturer's ordering table. Confirm that the 'QL' designation indicates the low-power standby feature set. Ensure compliance with RoHS standards if lead-free composition is required for the assembly process.

Selection Notes

Select this component when a 15ns speed grade is sufficient for the application timing requirements. The 'QL' variant is appropriate for designs prioritizing low standby power consumption through ITD circuitry. Ensure the PCB layout accommodates the 20-lead SOIC footprint with a 0.300-inch body width. Verify that the design can support the 5.0V ±10% operating voltage range across the full industrial temperature spectrum.

Part Context

This part belongs to the ATF16V8B(QL) series, which serves as a universal architecture capable of emulating various 20-pin PAL devices. The 'QL' suffix specifically denotes the inclusion of the low-power standby feature compared to the standard 'B' or 'Q' variants. The series replaces older ATF16V8BQ parts and offers enhanced reliability through Flash memory technology.

Replacement Considerations

The ATF16V8BQL-15SU can directly replace many 20-pin PAL devices such as the 16R8, 16L8, and 16H8 families when configured appropriately. It also serves as a drop-in replacement for obsolete ATF16V8BQ variants. Ensure software compilers are updated to recognize the G16V8 mnemonic for proper configuration.