ATF20V8BQL-15XC

Overview

The ATF20V8BQL-15XC is a high-performance Electrically Erasable Programmable Logic Device (EEPLD) manufactured by Microchip Technology. It features an industry-standard architecture that emulates many 24-pin PALs, providing eight macrocells with dedicated product terms. The device utilizes advanced Flash technology for reprogrammability and offers low power consumption options, with a standby current of 5 mA and active current of 20 mA. It supports commercial temperature ranges (0°C to 70°C) and operates at a maximum propagation delay of 15 ns. The component includes CMOS and TTL compatible inputs/outputs, internal pull-up resistors, and robust ESD protection.

Feature Summary

• Eight macrocells with flexible configuration modes: Registered, Complex, and Simple.
• Advanced Flash memory technology enabling reprogrammability and 100% testing.
• Low power consumption with specific variants offering 5 mA standby and 20 mA active current.
• Internal input and I/O pull-up resistors ensure known logic states when undriven.

Applications

• Direct replacement for obsolete 20R8 family and other 24-pin combinatorial PLDs.
• Implementation of complex logic functions requiring registered or combinatorial outputs.
• Systems requiring low-power operation within commercial temperature environments.

Procurement Notes

Verify the package type corresponding to the 'XC' suffix against the official ordering information table. Confirm that the required operating temperature range matches the Commercial specification (0°C to 70°C), as Industrial versions utilize different suffixes. Ensure programming hardware supports the specific Flash memory architecture for reliable erasing and writing cycles.

Selection Notes

Select this variant when low power dissipation is critical, specifically noting the 5 mA standby current characteristic of the BQL series compared to higher current alternatives. Choose based on the required speed grade; the -15 designation indicates a maximum pin-to-pin delay of 15 ns. Consider the available package options such as TSSOP or SOIC if surface mount installation is preferred over through-hole technologies.

Part Context

This component belongs to the ATF20V8B family of EEPLDs, which are designed to provide a superset of generic architectures found in standard PAL devices. The family includes variations like ATF20V8B and ATF20V8BQ, differentiated primarily by power consumption levels and package availability. The ATF20V8BQL specifically targets applications requiring reduced power usage while maintaining high-speed performance capabilities.

Replacement Considerations

The device can directly replace 20R8, 20RP8, 20R6, 20RP6, 20R4, and 20RP4 devices when configured in Registered Mode. It also serves as a substitute for various 24-pin combinatorial PLDs in Complex and Simple modes. Users should verify that the target application's timing requirements are met by the 15 ns propagation delay specification.