25AA010A/WF16K

Memory IC Overview

The Microchip Technology 25AA010A/WF16K is a 1 Kbit Serial Electrically Erasable Programmable Read-Only Memory (EEPROM) with a 128 x 8-bit organization. It operates on an SPI-compatible serial bus with a maximum clock frequency of 10 MHz. The device supports a supply voltage range of 1.8V to 5.5V and features self-timed erase and write cycles with a maximum duration of 5 ms. It includes hardware write protection, block write protection, and data retention exceeding 200 years.

Memory IC Feature Summary

• Supports up to 16-byte page write operations for efficient data storage.
• Includes built-in power-on/off data protection circuitry and a write enable latch.
• Features a Hold pin to pause serial communication without resetting the sequence.

Memory IC Applications

• Microcontroller system configuration storage
• Calibration data retention in embedded devices
• Parameter logging in industrial sensors

Memory IC Procurement Notes

Verify the specific package type associated with the 'WF16K' suffix against official Microchip documentation, as standard datasheets list PDIP, SOIC, MSOP, TSSOP, DFN, and SOT-23 packages. Confirm that the wafer form factor indicated by the suffix matches your assembly requirements. Ensure the Industrial temperature grade (-40°C to +85°C) aligns with your operational environment before finalizing procurement.

Memory IC Selection Notes

Select this component when a low-pin-count, non-volatile memory solution is required for small data sets. The 1.8V minimum operating voltage makes it suitable for modern low-power systems. Consider the 16-byte page size limitation during software design to prevent data overwriting across page boundaries. Verify compatibility with the host microcontroller's SPI interface modes.

Memory IC Part Context

This part belongs to the 25XX010A family of 1 Kbit SPI EEPROMs from Microchip Technology. It shares functional similarities with the 25LC010A, though voltage ranges may differ. The family is designed for applications requiring reliable data storage with minimal interface complexity. It complements Microchip's broader portfolio of memory and microcontroller solutions.

Memory IC Replacement Considerations

Check for direct substitutes within the 25AA010A series with different package suffixes if the WF16K wafer format is unavailable. Cross-reference with other 1 Kbit SPI EEPROMs from alternative manufacturers only if pinout and electrical specifications are fully compatible.