ATF16V8BQL-15PI

Overview

The ATF16V8BQL-15PI is a high-performance CMOS electrically erasable programmable logic device (PLD) manufactured by Microchip Technology. It utilizes Atmel’s Flash memory technology and features eight macrocells with registered outputs. The -15 speed grade provides a maximum pin-to-pin delay of 15 ns and a clock-to-output delay of 10 ns. Designed for industrial applications, it operates within a temperature range of -40°C to +85°C at a supply voltage of 5V ± 10%. The device supports low-power standby modes with typical current consumption of 5 mA and active current of 20 mA.

Feature Summary

• Industrial temperature range (-40°C to +85°C) with 5V ± 10% supply tolerance
• Eight macrocells supporting Registered, Complex, and Simple operating modes
• Low power consumption: 5 mA standby and 20 mA active current
• Advanced Flash technology allowing 100 erase/write cycles and 20-year data retention

Applications

• Direct replacement for 16R8 family and most 20-pin combinatorial PLDs
• Industrial control systems requiring reprogrammable logic
• PCI-compliant digital interface circuits

Procurement Notes

Verify the ordering suffix 'I' confirms the Industrial temperature rating (-40°C to +85°C). Confirm the 'QL' suffix indicates the low-power variant with specified standby and active currents. Ensure the package code 'P' corresponds to the 20-lead Plastic Dual Inline Package (PDIP) with 0.300-inch width. Check for RoHS compliance status as older manufacturing runs may differ.

Selection Notes

Select this part when an industrial-grade environment requires low power dissipation alongside standard PAL compatibility. The -15 speed grade offers a balance between switching speed and power efficiency compared to faster grades. Ensure the design utilizes the specific feedback paths available in Complex mode if bidirectional I/O is required, noting that pins 1 and 11 function as dedicated inputs in this configuration.

Part Context

This component belongs to the ATF16V8B series, which includes standard (B), reduced power (BQ), and low power (BQL) variants. The ATF16V8BQL specifically targets power-sensitive applications while maintaining the universal architecture of the family. It serves as a drop-in replacement for legacy GAL16V8 and similar 20-pin devices in existing hardware designs.

Replacement Considerations

Publicly confirmed substitutes include other ATF16V8BQL variants with different speed grades or packages, such as ATF16V8BQL-15PC or ATF16V8BQL-15SI. Standard ATF16V8B-15PI can replace this unit if higher power consumption is acceptable.