25AA160C-I/SN

Memory IC Overview

The Microchip Technology 25AA160C-I/SN is a 16 Kbit Serial Electrically Erasable PROM featuring a 2048 x 8-bit organization. It operates via an SPI-compatible serial bus with a maximum clock frequency of 10 MHz at VCC ≥ 4.5V. The device supports a supply voltage range of 1.8V to 5.5V and utilizes a 16-byte page size for write operations. It is housed in an 8-lead SOIC package and functions within an industrial temperature range of -40°C to +85°C.

Memory IC Feature Summary

• Supports block write protection allowing selection of none, 1/4, 1/2, or all array segments.
• 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 data storage
• Configuration parameter retention
• Calibration value storage

Memory IC Procurement Notes

Verify that the specific ordering suffix matches the required package type and temperature grade. Confirm the 'C' designation indicates the 16-byte page size variant rather than the 32-byte 'D' version. Ensure the voltage range requirements align with the 1.8V minimum specification for the AA series.

Memory IC Selection Notes

Select this component when low-voltage operation down to 1.8V is required alongside standard SPI compatibility. The Industrial temperature grade (-40°C to +85°C) suits general commercial and industrial environments. Consider the 16-byte page size constraint for write algorithms compared to larger page variants.

Memory IC Part Context

This part belongs to the 25XX160C/D family of 16 Kbit Serial EEPROMs from Microchip Technology. The 'AA' prefix denotes the 1.8V compatible voltage range, distinguishing it from the 2.5V minimum 'LC' series. The 'SN' suffix specifies the 8-lead Small Outline Integrated Circuit (SOIC) package format.

Memory IC Replacement Considerations

25AA160DT-I/SN

Memory IC FAQ

How does the HOLD pin function during serial communication?

The HOLD pin suspends transmission to the device while in the middle of a serial sequence. Transitions on SI, SCK, and SO are ignored until HOLD is released, allowing the host to service higher priority interrupts without retransmitting the sequence.

What is the difference between the 25AA160C and 25AA160D versions?

The primary difference is the page size for write operations. The 25AA160C features a 16-byte page size, whereas the 25AA160D features a 32-byte page size. Both share the same memory organization and electrical characteristics.