ATF22LV10C-10SI

Overview

The ATF22LV10C-10SI is an industrial-grade, low-voltage Electrically Erasable Programmable Logic Device (EEPLD) manufactured by Microchip Technology. It features a maximum propagation delay of 10 ns and operates within a supply voltage range of 3.0V to 5.5V. The device utilizes a variable product term architecture with ten macrocells, providing 8 to 16 product terms per output for complex logic implementation. It includes synchronous and asynchronous reset capabilities, register preload functionality, and a user-controlled power-down pin option that reduces standby current to approximately 10 µA. The component is housed in a 24-lead Plastic Gull Wing Small Outline (SOIC) package.

Feature Summary

• Low-voltage operation with a 3.0V to 5.5V supply range and typical standby power consumption of 10 µA in power-down mode.
• High-performance CMOS technology offering a maximum propagation delay of 10 ns and up to 166 MHz operating frequency.
• Flexible I/O configuration with twelve inputs and ten bi-directional I/O pins, featuring internal pin-keeper circuits to maintain logic states.
• Industrial temperature rating (-40°C to +85°C) with high-reliability specifications including 20-year data retention and 2,000V ESD protection.

Applications

• Glue logic interfacing for 3.3V systems
• DMA control applications
• State machine control
• Graphics processing

Procurement Notes

Verify the specific ordering suffix 'SI' corresponds to the 24-lead SOIC package and Industrial temperature range (-40°C to +85°C). Confirm RoHS compliance status if lead-free packaging is required for the design. Ensure programming equipment supports the JEDEC file format generated for the Power-down Mode compiler settings if the PD pin feature is utilized in the circuit design.

Selection Notes

Select this model when a 10 ns speed grade is required alongside low-power standby capabilities in an industrial environment. The SOIC package is suitable for surface-mount assembly. Consider the ATF22LV10CQZ variant if edge-sensing zero standby power (3 µA typical) is preferred over the standard pin-controlled power-down feature found in this part number.

Part Context

This component belongs to the Atmel ATF22LV10C family of advanced low-voltage EEPLDs. It is designed to emulate standard 24-pin PAL devices while offering reprogrammability via Flash memory technology. The device integrates a security fuse to prevent unauthorized copying of programmed fuse patterns and provides 64 bits of accessible user signature memory.

Replacement Considerations

The ATF22LV10C-10PC serves as a direct replacement for the same speed grade and package type but is rated for Commercial temperature range (0°C to 70°C) instead of Industrial.

FAQ

How does the power-down feature affect the input and I/O pins?

When the power-down pin is active, all input signals except the power-down pin are blocked. However, internal input and I/O hold latches remain active to ensure pins do not float to indeterminate levels, maintaining their previous logic states.

What is the function of the register preload feature?

Register preload allows each register to be loaded with either a high or low state during programming. This simplifies testing by enabling any state to be forced into the registers to control test sequencing automatically after download.

Can unused product terms impact power consumption?

No. Unused product terms are automatically disabled by the compiler to decrease power consumption, ensuring efficient energy usage even when not all logic resources are utilized.