ATF22V10C-10PU

Overview

The ATF22V10C-10PU is a high-performance CMOS electrically erasable programmable logic device (PLD) manufactured by Microchip Technology. It features 10 macrocells, 22 inputs, and 10 I/O lines in a 24-pin Plastic Dual Inline Package (PDIP). The device operates at a maximum propagation delay of 10 ns with a typical standby power supply current of 85 µA. It utilizes advanced Flash memory technology for reprogrammability and offers 20-year data retention. The component supports pin-controlled power-down mode to reduce system power consumption.

Feature Summary

• High-speed performance with 10 ns maximum pin-to-pin delay
• Advanced Flash technology allowing 100% testing and reprogrammability
• Pin-controlled standby power mode reducing current to less than 100 µA
• Internal input and I/O pin-keeper circuits to prevent floating states

Applications

• Glue logic for 5.0V systems
• DMA control
• State machine control
• Graphics processing

Procurement Notes

Verify the package type corresponds to the 24-pin PDIP configuration. Confirm the speed grade matches the 10 ns specification. Ensure the design file compiler mode aligns with the required power-down feature if applicable. Check export restrictions as this product may require additional documentation for shipment from the United States.

Selection Notes

Select the ATF22V10C-10PU when a 10 ns delay is required for industrial temperature ranges (-40°C to +85°C). This part number specifically denotes the PDIP package variant. For commercial temperature ranges only, verify if downgrading a higher speed grade is sufficient. Ensure the application requires the specific 22-input and 10-I/O architecture provided by this model.

Part Context

This component belongs to the Atmel ATF22V10C series of high-performance EEPLDs. It is backward-compatible with the Atmel ATF22V10B(Q) and AT22V10(L) families. The device is designed to replace older PAL/GAL logic in complex digital designs while offering non-volatile reprogrammability through Flash memory technology.

Replacement Considerations

Public confirmed substitute part numbers include ATF22V10C-10JU and ATF22V10C-10SU. These variants share identical electrical specifications but differ in package type (PLCC and SOIC respectively). Verify pinout compatibility before substitution.

FAQ

How does the power-down mode function?

When the PD pin is driven high, the device enters power-down mode, reducing supply current significantly. All output data and internal logic states are latched and held during this period.

What is the purpose of the pin-keeper circuits?

The internal pin-keeper circuits hold previous logic values on pins not driven by external sources or the device's output buffer, preventing floating states and reducing system power.

Can the registers be initialized during power-up?

Yes, the registers are designed to reset to the low state during power-up after VCC crosses the reset voltage threshold, which aids in state machine initialization.