ATF22V10C-15JI

Overview

The ATF22V10C-15JI 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, 18 inputs, and 10 I/O pins housed in a 28-lead Plastic J-leaded Chip Carrier (PLCC) package. It operates at a maximum pin-to-pin propagation delay of 15 ns and supports a standard 5V power supply. Key electrical characteristics include a typical standby power consumption of 10 µA and robust ESD protection of 2,000V.

Feature Summary

• High-speed performance with a maximum 15 ns pin-to-pin delay and up to 55.5 MHz external feedback frequency.
• Advanced Flash memory technology enabling 100 erase/write cycles, 20-year data retention, and full reprogrammability.
• Pin-controlled power-down mode reduces supply current to less than 100 µA while latching output data.
• Internal input and I/O pin-keeper circuits maintain logic states without DC current draw when pins are undriven.

Applications

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

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and temperature range. The 'J' suffix indicates a PLCC package, while the 'I' suffix denotes an industrial temperature range (-40°C to +85°C). Ensure compatibility with existing programming hardware and software tools, as JEDEC file formats may vary based on compiler mode selections such as PAL or GAL modes.

Selection Notes

Select this component for designs requiring moderate speed (15 ns delay) within an industrial temperature environment. Compare against faster variants like the -5 or -7 series if higher frequencies are needed, or lower-power CQ variants if reduced active current is critical. Ensure the design accommodates the 28-lead PLCC footprint and accounts for the 5V ±10% supply voltage tolerance specified for industrial operation.

Part Context

This part belongs to the ATF22V10C family of high-performance EEPLDs. It is backward-compatible with the Atmel ATF22V10B(Q) and AT22V10(L) devices. The family offers various speed grades and packages, including DIP, SOIC, TSSOP, and PLCC options, allowing designers to choose between cost, size, and performance requirements while maintaining architectural consistency.

Replacement Considerations

Direct replacements include other ATF22V10C variants with different speed grades or packages, such as ATF22V10C-10JU or ATF22V10C-15PU, provided the timing and physical footprint constraints are met. Cross-family replacements like the ATF22V10B require verification of feature parity, particularly regarding the power-down mode and pin-keeper circuits.

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, and input signals except the PD pin are blocked.

What is the purpose of the pin-keeper circuits?

The internal pin-keeper circuits hold the previous logic state of each pin when it is not being driven externally. This prevents floating inputs, ensures known valid logic levels, and reduces system power by eliminating DC current required to hold pins in a state.

Can the ATF22V10C-15JI be used in military applications?

No, the 'I' suffix indicates an industrial temperature range (-40°C to +85°C). Military-grade versions are available with the '/883' suffix (e.g., ATF22V10C-15GM/883), which operate from -55°C to +125°C.