ATF16V8BQ-10PC

Overview

The ATF16V8BQ-10PC 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 20 pins in a 20-lead PDIP package. The device operates at a maximum pin-to-pin delay of 10 ns, with a setup time of 7.5 ns and clock-to-output delay of 7 ns. It supports a 5V supply voltage with ±5% tolerance for commercial applications (0°C to 70°C). Standby current is typically 35 mA, while active current reaches 55 mA.

Feature Summary

• Emulates industry-standard 20-pin PAL devices including 16R8, 16L8, and 16H8 families via configurable registered, complex, and simple modes.
• Features advanced Flash technology allowing 100 erase/write cycles, 20-year data retention, and 2,000V ESD protection.
• Includes internal input and I/O pull-up resistors, ensuring known logic states when inputs are undriven.
• Provides power-saving options with lower standby and active currents compared to the standard ATF16V8B series.

Applications

• Direct replacement for obsolete 20-pin PAL logic circuits in industrial control systems.
• Implementation of state machines requiring registered output initialization during power-up.
• Complex logic functions in embedded systems utilizing CMOS and TTL compatible interfaces.

Procurement Notes

Verify component authenticity through authorized Microchip distributors or certified suppliers. Confirm package integrity and lead condition upon receipt. Ensure programming equipment supports the specific JEDEC file format required for ATF16V8BQ devices. Check for RoHS compliance status as historical batches may vary. Validate temperature range specifications against application requirements before integration.

Selection Notes

Select the ATF16V8BQ variant over the standard ATF16V8B when reduced power consumption is critical, as it offers lower standby and active currents. Choose the -10 speed grade for designs requiring a maximum 10 ns propagation delay. Ensure the design accommodates the 5V ±5% supply tolerance required for commercial temperature ranges. Verify that the 20-pin PDIP footprint matches the PCB layout constraints.

Part Context

This component belongs to the ATF16V8B family of Electrically Erasable Programmable Logic Devices (EEPLDs). The 'Q' suffix denotes a low-power version within this architecture, distinct from the standard ATF16V8B and the ultra-low-power ATF16V8BQL. The '-10' indicates the 10 ns speed grade, while 'PC' specifies the 20-lead Plastic Dual Inline Package suitable for through-hole mounting.

Replacement Considerations

Pin-compatible replacements include other ATF16V8B variants such as ATF16V8B-10PC or ATF16V8B-15PC, though power characteristics will differ. The ATF16V8BQL series offers similar functionality with significantly lower power but slower speeds. Ensure software compilers support the specific macrocell configuration modes required for the target PAL emulation.