25AA160C-I/P

Memory IC Overview

The Microchip Technology 25AA160C-I/P is a 16 Kbit (2048 x 8-bit) Serial Electrically Erasable PROM. It features an SPI-compatible interface with a maximum clock frequency of 3 MHz at supply voltages below 2.5 V, scaling up to 10 MHz at 4.5 V to 5.5 V. The device operates within a voltage range of 1.8 V to 5.5 V and supports industrial temperatures from -40°C to +85°C. It utilizes a 16-byte page write architecture and includes hardware write protection via the WP pin. The component is housed in an 8-lead PDIP package.

Memory IC Feature Summary

• Supports serial communication via a standard four-wire SPI bus with separate data input and output lines.
• Includes programmable block write protection allowing selection of none, one-quarter, one-half, or all array segments.
• Integrates power-on/off data protection circuitry and a write enable latch to prevent inadvertent writes.
• Features a hold pin capability that suspends serial transmission without resetting the internal address pointer.

Memory IC Applications

• Data logging for non-volatile storage in industrial monitoring systems
• Configuration parameter storage for microcontroller-based embedded devices
• Calibration value retention in sensor interfaces

Memory IC Procurement Notes

Verify the specific suffix 'I' confirms the industrial temperature grade (-40°C to +85°C) and 'P' denotes the PDIP package. Confirm the 'C' variant specifies the 16-byte page size rather than the 32-byte page size found in 'D' variants. Ensure the source documentation matches the DS22150B datasheet for accurate electrical characteristics.

Memory IC Selection Notes

Select this component when a low-pin-count EEPROM is required for applications needing 16 Kbit of non-volatile storage. The 1.8 V minimum operating voltage makes it suitable for low-power designs. The PDIP package is appropriate for through-hole prototyping or manufacturing environments where surface mount technology is not utilized.

Memory IC Part Context

This part belongs to the 25XX160C/D family of 16 Kbit Serial EEPROMs manufactured by Microchip Technology. The family shares identical functional architectures but differs in page sizes ('C' vs 'D') and operating voltage ranges ('AA' vs 'LC'). The 25AA160C series specifically supports the lower 1.8 V supply rail compared to the 2.5 V minimum of the LC series.

Memory IC Replacement Considerations

Public confirmed substitute part numbers: 25AA160C-I/SN, 25AA160C-I/ST, 25AA160C-I/MS, 25AA160C-I/MNY.