25AA080CT-I/SN

Memory IC Overview

The Microchip Technology 25AA080CT-I/SN is an 8 Kbit (1024 x 8-bit) Serial Electrically Erasable PROM. It features a 16-byte page size and operates via a standard SPI-compatible serial bus with SCK, SI, SO, CS, HOLD, and WP pins. The device supports a maximum clock frequency of 10 MHz at VCC levels between 4.5V and 5.5V. It functions within a supply voltage range of 1.8V to 5.5V and operates in industrial temperatures from -40°C to +85°C. Packaged in an 8-lead SOIC, it offers high reliability with over 1 million erase/write cycles and data retention exceeding 200 years.

Memory IC Feature Summary

• Supports hardware write protection via the WP pin and STATUS register bits for selective array security
• Includes a HOLD input to pause serial communication without resetting the sequence
• Features self-timed erase and write cycles with automatic internal timing control

Memory IC Applications

• Microcontroller system data storage
• Configuration parameter retention
• Calibration value storage

Memory IC Procurement Notes

Verify the specific suffix 'SN' corresponds to the 8-lead SOIC package and 'I' indicates the industrial temperature grade. Confirm the 'C' designation aligns with the 16-byte page size requirement for your application design. Ensure the source document matches the DS22151B datasheet for accurate electrical specifications.

Memory IC Selection Notes

Select this component when an 8 Kbit capacity with a 16-byte page buffer is required. The 1.8V minimum operating voltage makes it suitable for low-voltage systems compared to the 2.5V minimum of the LC series. Verify that the SOIC package dimensions fit the PCB layout constraints.

Memory IC Part Context

This part belongs to the 25XX080C/D family of 8K SPI EEPROMs. The AA variant specifies a 1.8V minimum supply voltage, distinguishing it from the LC series which requires 2.5V. The 'C' suffix denotes the 16-byte page architecture, whereas the 'D' version utilizes a 32-byte page size.

Memory IC Replacement Considerations

25LC080CT-I/SN

Memory IC FAQ

How does the HOLD pin function during operation?

The HOLD pin suspends transmission to the device while in the middle of a serial sequence. When pulled low, inputs are ignored except Chip Select, allowing the host to service higher priority interrupts without resetting the sequence.

What is the difference between the C and D versions of this device?

The primary difference is the page size. The 25AA080C variant has a 16-byte page size, while the 25AA080D variant has a 32-byte page size.