ATF22V10C-7SX

Overview

The ATF22V10C-7SX is a high-performance Electrically Erasable Programmable Logic Device (EEPLD) manufactured by Microchip Technology, originally designed by Atmel. It utilizes advanced Flash memory technology to provide reprogrammability with 100% testing and high reliability. The device features 10 macrocells and supports up to 10 I/O pins. It operates at a maximum propagation delay of 7.5 ns and a maximum frequency of 125 MHz. Designed for commercial applications, it functions within a temperature range of 0°C to 70°C using a single 5V power supply.

Feature Summary

• High-speed performance with a maximum pin-to-pin delay of 7.5 ns
• Electrically erasable Flash memory allowing 100 erase/write cycles
• Pin-controlled standby power mode reducing current to 10 µA typical
• Input and I/O pin-keeper circuits to maintain logic states

Applications

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

Procurement Notes

Verify the package type corresponds to the 'S' suffix, indicating a 24-lead Plastic Gull Wing Small Outline (SOIC). Confirm that the component meets RoHS compliance requirements if lead-free materials are necessary for the assembly process. Ensure the design file compiler mode is set correctly to enable or disable the power-down feature as required by the specific application logic.

Selection Notes

Select this part for commercial temperature environments ranging from 0°C to 70°C. The 7.5 ns delay suits moderate-speed digital logic designs. Compare against the -5JX variant for faster switching or the -10PU variant for lower cost in through-hole applications. Ensure the system voltage remains within the 5V ±5% tolerance specified for commercial grade operation.

Part Context

This component belongs to the ATF22V10C series of EEPLDs. It is backward-compatible with the Atmel ATF22V10B(Q) and AT22V10(L) families. The device integrates 64 bits of user-accessible programmable memory for electronic signature words and includes a security fuse to prevent unauthorized copying of the fuse patterns.

Replacement Considerations

ATF22V10C-7PX (PDIP package)

FAQ

How does the power-down mode function?

When the PD pin is driven high, the device enters power-down mode, reducing supply current to less than 100 µA. All output data and internal logic states are latched and held during this period.

What is the purpose of the pin-keeper circuits?

The pin-keeper circuits hold the previous value of input and I/O pins when they are not actively driven. This prevents floating inputs and reduces system power consumption without requiring DC current.

Can the registers be initialized during power-up?

Yes, the registers are designed to reset to the low state during power-up. This feature aids in state machine initialization, provided the VCC rise is monotonic and starts below 0.7V.