ATF16V8C-7SU

Overview

The ATF16V8C-7SU is an electrically-erasable programmable logic device (EE PLD) manufactured by Microchip Technology, utilizing Atmel EECMOS Flash memory technology. It features a maximum pin-to-pin propagation delay of 7.5 ns and operates within the industrial temperature range of -40°C to +85°C. The device is housed in a 20-lead Plastic Gull-Wing Small Outline (SOIC) package. It supports a supply voltage of 5V ± 10% and includes a pin-controlled power-down mode that reduces current consumption to less than 100μA.

Feature Summary

• High-speed performance with a maximum 7.5 ns propagation delay
• Industrial temperature range operation (-40°C to +85°C)
• Pin-controlled power-down mode reducing supply current below 100μA
• Internal input and I/O pin-keeper circuits eliminate need for external pull-ups

Applications

• Direct replacement for 16R8 family and most 20-pin combinatorial PLDs
• Emulation of industry-standard 20-pin PAL devices
• Complex logic function realization using configurable macrocells

Procurement Notes

Verify component authenticity through authorized channels as this part utilizes legacy Atmel branding. Confirm the specific SOIC package variant matches design requirements. Ensure programming tools support the extended JEDEC fuse file format required for the power-down feature configuration.

Selection Notes

Select the ATF16V8C-7SU when an industrial temperature rating is required alongside a 7.5 ns speed grade. This model is appropriate for designs needing low standby power via the dedicated power-down pin. Verify that the application does not require higher speed grades or commercial-only temperature ranges.

Part Context

This component belongs to the ATF16V8C series of high-performance EEPLDs. The '7' suffix indicates the 7.5 ns speed grade, while 'S' denotes the SOIC surface-mount package. The 'U' suffix confirms compliance with RoHS standards and lead-free manufacturing processes.

Replacement Considerations

ATF16V8C-7JU (PLCC package), ATF16V8C-7PU (PDIP package). These variants share identical electrical characteristics and functionality but differ only in physical package type.

FAQ

How is the power-down mode activated?

Power-down mode is activated when Pin 4 is configured as the power-down control pin and driven high. In this state, output data is latched and held.

What happens to unused product terms?

Unused product terms are automatically disabled by the compiler to decrease overall power consumption.

Can this device replace standard 16V8 PALs?

Yes, it incorporates a superset of generic architectures allowing direct replacement of the 16R8 family and most 20-pin combinatorial PLDs.