ATF20V8BQL-15PI

Overview

The ATF20V8BQL-15PI is a high-performance electrically-erasable programmable logic device (PLD) utilizing CMOS Flash memory technology. It features 24 pins in a Plastic Dual Inline Package (PDIP). The device operates with a maximum pin-to-pin propagation delay of 15 ns and supports an external feedback frequency up to 45 MHz. It provides eight macrocells, each allocated eight product terms, and functions within the Industrial temperature range (-40°C to +85°C) at a nominal 5V supply voltage.

Feature Summary

• High-speed Electrically-erasable Flash PLD with 7.5 ns to 25 ns speed grades
• Industry-standard architecture emulating many 24-pin PALs
• CMOS and TTL compatible inputs and outputs with internal pull-up resistors
• Advanced Flash Technology: Reprogrammable, 20-year data retention, 100 erase/write cycles

Applications

• Direct replacement for 20R8 family and most 24-pin combinatorial PLDs
• Complex logic function realization using registered, complex, or simple modes
• Power-limited applications utilizing low-power BQL options

Procurement Notes

Verify the specific ordering suffix 'PI' corresponds to the 24-lead PDIP package and Industrial temperature range as defined in the official Microchip ordering tables. Confirm RoHS compliance status if required, noting that Green Package Options are available separately. Ensure programming hardware supports the specified EE PLD architecture.

Selection Notes

Select this component when replacing legacy 24-pin PAL devices requiring reprogrammability. Choose the -15 speed grade for 15 ns maximum delay requirements. The 'QL' suffix indicates low power consumption (5 mA standby), suitable for systems where power dissipation is a constraint compared to standard ATF20V8B variants.

Part Context

This part belongs to the ATF20V8B family of high-performance EE PLDs manufactured by Atmel (now Microchip). The family includes standard (B), low-power (BQ), and ultra-low-power (BQL) variants across multiple packages including PLCC, PDIP, SOIC, and TSSOP. The device offers flexible configuration modes to emulate various PAL architectures.

Replacement Considerations

The device can directly replace the 20R8 family and most 24-pin combinatorial PLDs. Specific emulation JEDEC files are available for devices such as 20R8, 20RP8, 20L8, 20H8, 20P8, 14L8, 14H8, and 16L6.