25LC320AT-H/SN16KVAO

Overview

The 25LC320AT-H/SN16KVAO is a 32-kbit (4,096 x 8) Serial Electrically Erasable PROM manufactured by Microchip Technology. It operates within a supply voltage range of 2.5V to 5.5V and supports a maximum clock frequency of 5 MHz at voltages between 4.5V and 5.5V. The device utilizes an 8-lead SOIC package and is qualified for an extended temperature range from -40°C to +150°C.

Feature Summary

• Supports SPI-compatible serial bus architecture with byte and page-level write operations.
• Includes built-in hardware write protection via the WP pin and software block protection bits.
• Features power-on/off data protection circuitry and a self-timed erase/write cycle mechanism.

Applications

• Embedded systems requiring non-volatile data storage in high-temperature environments
• Industrial control applications utilizing microcontrollers with SPI ports
• Automotive electronics components meeting AEC-Q100 reliability standards

Procurement Notes

Verify the specific ordering suffixes against official Microchip documentation to confirm package type and temperature grade. Ensure compatibility with system voltage levels and SPI interface requirements before integration. Cross-reference datasheet revision history for any recent manufacturing or specification updates.

Selection Notes

Select this component when extended industrial temperature operation up to +150°C is required. The 32-kbit capacity suits moderate data logging needs. Confirm that the 8-lead SOIC footprint aligns with PCB layout constraints and that the 5 MHz speed meets system timing requirements.

Part Context

This part belongs to the 25LCXXX family of mid-density serial EEPROMs. It shares architectural similarities with other densities in the series but offers specific memory organization optimized for applications needing reliable non-volatile storage in harsh thermal conditions.

Replacement Considerations

Consult the manufacturer's selection table for alternative densities or packages within the same family. Verify functional equivalence regarding voltage ranges and interface protocols before substituting with other EEPROM models.