ATF22V10C-15JU

Overview

The ATF22V10C-15JU is a high-performance Electrically Erasable Programmable Logic Device (EEPLD) manufactured by Microchip Technology, originally designed by Atmel. It utilizes CMOS Flash memory technology to provide reprogrammability with 10 macrocells and 10 I/O pins in a 28-lead Plastic J-leaded Chip Carrier (PLCC) package. The device features a maximum pin-to-pin propagation delay of 15 ns and operates at a maximum frequency of 55.5 MHz for external feedback configurations. It supports a standard 5V power supply with a typical standby current of 10 µA when the Power-Down (PD) pin is asserted. The component is rated for industrial temperature ranges from -40°C to +85°C.

Feature Summary

• High-speed performance with a maximum 15 ns propagation delay and 55.5 MHz operating frequency.
• Electrically erasable Flash memory architecture allowing 100 erase/write cycles and 20-year data retention.
• Pin-controlled Power-Down mode reduces supply current to less than 100 µA while latching output states.
• Includes internal input and I/O pin-keeper circuits to maintain logic levels and reduce floating power consumption.

Applications

• Glue logic implementation for 5.0V systems
• DMA (Direct Memory Access) control circuits
• State machine control logic

Procurement Notes

Verify that the specific ordering suffix corresponds to the required package type and temperature range. The 'JU' suffix indicates a 28-lead PLCC package suitable for industrial temperatures (-40°C to +85°C). Confirm compatibility with existing programming hardware, as JEDEC files may vary based on compiler mode selection for features like Power-Down or PAL/GAL emulation.

Selection Notes

Select this part for designs requiring moderate speed (15 ns delay) within an industrial temperature environment. Ensure the design accommodates the 28-lead PLCC footprint. If lower power consumption is critical during idle periods, utilize the PD pin feature; otherwise, configure the pin as a standard logic input. Verify that the 5V ±10% supply tolerance aligns with the system power rails.

Part Context

This component belongs to the ATF22V10C family of high-performance EEPLDs. It is backward-compatible with the Atmel ATF22V10B(Q) and AT22V10(L) devices. The 'C' designation distinguishes it from earlier 'B' series parts, offering improved speed and Flash-based non-volatility compared to older EPROM or EEPROM technologies.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should verify mechanical and electrical compatibility if considering alternative vendors or updated generations within the same product family.

FAQ

What is the function of the PD pin?

The PD pin controls the Power-Down mode. When held high, it reduces the supply current to less than 100 µA and latches all output data and internal logic states. If not used for power management, it can be configured as a regular logic input.

How does the device handle inputs when not driven?

The ATF22V10C includes internal pin-keeper circuits that hold each pin at its previous logic state even when undriven. This prevents inputs from floating to indeterminate levels and reduces system power consumption without requiring external pull-up resistors.

What are the voltage specifications for the VCC supply?

For industrial and military grades, the VCC supply is specified at 5V ±10%. For commercial grades, it is 5V ±5%. The absolute maximum rating allows voltages between -2.0V and +7.0V on any pin with respect to ground.