25LC010A-E/SN16KVAO

Overview

The Microchip Technology 25LC010A-E/SN16KVAO is a 1 Kbit (128 x 8) Serial Electrically Erasable Programmable Read-Only Memory (EEPROM). It operates within a supply voltage range of 2.5V to 5.5V and supports a maximum clock frequency of 10 MHz at voltages between 4.5V and 5.5V. The device utilizes an SPI-compatible serial bus for communication, featuring a write page mode capable of handling up to 16 bytes per cycle. It includes self-timed erase and write cycles with a maximum duration of 5 ms.

Feature Summary

• Supports sequential read operations and write page modes for efficient data transfer across the SPI interface.
• Includes built-in hardware protections such as power-on/off data protection circuitry and a dedicated write-protect pin.
• Features block write protection capabilities allowing selective protection of none, one-quarter, one-half, or all memory array segments.

Applications

• Microcontroller systems requiring non-volatile storage for configuration parameters
• Embedded applications needing persistent calibration data retention
• Industrial control units utilizing extended temperature grade components

Procurement Notes

Verify that the specific ordering suffix matches the required automotive temperature grade (-40°C to +125°C) and SOIC package type. Confirm RoHS compliance status and ensure the component meets the specified voltage and speed requirements for your target application environment before finalizing procurement orders.

Selection Notes

Select this component when an extended industrial temperature range is necessary compared to standard industrial variants. Ensure the system design accommodates the 2.5V minimum operating voltage. Verify that the SPI controller supports the required clock speeds and instruction set timing constraints defined in the datasheet specifications.

Part Context

This part belongs to the 25LC010A series of 1 Kbit SPI EEPROMs manufactured by Microchip Technology. The 'E' designation indicates an extended temperature rating suitable for harsh environments. The 'SN' suffix identifies the 8-lead Small Outline Integrated Circuit (SOIC) package format used for surface mount assembly.

Replacement Considerations

The 25AA010A serves as a functional alternative within the same family, though it differs in minimum operating voltage specifications. Verify voltage compatibility and temperature ratings when substituting other 25LC010A variants or similar capacity devices from different manufacturers.

FAQ

How does the HOLD pin function during SPI communication?

The HOLD pin allows the host to pause serial communication without resetting the sequence. When pulled low while SCK is low, the device ignores transitions on SI, SCK, and SO pins until the HOLD pin is released.

What happens if a page write crosses a physical page boundary?

If a page write operation attempts to cross a physical page boundary, the data wraps around to the beginning of the current page instead of writing to the next page, potentially overwriting existing data.