AT25010B-XHL-B

Memory IC Overview

The AT25010B-XHL-B is a 1 Kbit (128 x 8) Serial Electrically Erasable and Programmable Read-Only Memory (EEPROM) manufactured by Microchip Technology. It features an SPI-compatible interface supporting Modes 0 and 3 with a maximum clock rate of 20 MHz at 5V. The device operates within a supply voltage range of 1.8V to 5.5V and supports industrial temperatures from -40°C to +85°C. It utilizes an 8-SOIC package, offers 1,000,000 write cycle endurance, and retains data for 100 years.

Memory IC Feature Summary

• Supports standard SPI communication modes 0 and 3 with high-speed clocking capabilities.
• Includes hardware write protection via the WP pin and software block protection settings.
• Features a HOLD function to pause serial communication without resetting the sequence.
• Provides robust ESD protection exceeding 4,000V and low standby current consumption.

Memory IC Applications

• Industrial control systems requiring non-volatile parameter storage
• Commercial devices needing low-power configuration memory
• Embedded controllers storing calibration data or user settings

Memory IC Procurement Notes

Verify the specific ordering suffix 'XHL-B' against official Microchip documentation to confirm the exact package type and tape/reel specifications. Ensure compatibility with system voltage levels and SPI timing requirements before finalizing procurement orders.

Memory IC Selection Notes

Select this component when a 1 Kbit capacity is required alongside strict space constraints provided by the SOIC-8 package. It is suitable for applications demanding high reliability, wide voltage operation, and industrial temperature stability compared to lower-grade alternatives.

Memory IC Part Context

This part belongs to the AT25010B/AT25020B/AT25040B family of SPI Serial EEPROMs. These devices share identical pinouts and command sets, differing primarily in memory density. The XHL suffix typically denotes the SOIC package variant within this series.

Memory IC Replacement Considerations

Compatible substitutes include AT25010B-SSHL-B and AT25010B-MHL-B, which offer equivalent functionality in different package formats such as UDFN or TSSOP. Verify pin compatibility and voltage ranges when substituting.

Memory IC FAQ

How does the HOLD pin affect internal write operations?

Asserting the HOLD pin pauses serial communication but does not interrupt or pause any ongoing internal write cycles initiated by the device.

What is the default state of the Block Write Protection bits upon power-up?

The BP1 and BP0 bits in the STATUS register remain unchanged from their previous nonvolatile state after power-up; they are not reset to zero automatically.