23AA02M-I/SN

Memory IC Overview

The Microchip Technology 23AA02M-I/SN is a 2-Mbit (256K x 8-bit) low-power serial SRAM device. It operates within a supply voltage range of 1.7V to 3.6V and supports an industrial temperature range from -40°C to +85°C. The component utilizes an 8-lead SOIC package and interfaces via SPI, SDI, or SQI protocols with a maximum clock frequency of 143 MHz. Key electrical characteristics include a standby current of 70 µA typical and unlimited read/write cycles.

Memory IC Feature Summary

• Supports Serial Peripheral Interface (SPI), Serial Dual Interface (SDI), and Serial Quad Interface (SQI) for flexible data transfer speeds.
• Includes built-in Error Correction Code (ECC) logic to ensure superior data reliability during read operations.
• Features zero write time and unlimited read/write cycle endurance for the memory array.
• Allows user-selectable page sizes of 32 bytes or 256 bytes via the STATUS register configuration.

Memory IC Applications

• High-speed data buffering in embedded systems requiring rapid access times.
• Non-volatile data storage solutions when paired with external battery backup circuits.
• Industrial control applications operating within standard industrial temperature ranges.
• Portable electronic devices utilizing single-voltage read and write operations.

Memory IC Procurement Notes

Verify that the specific ordering suffix corresponds to the 8-lead SOIC package variant, as the 23AA02M family includes distinct pin counts for different packages. Confirm the voltage range requirements align with the 1.7V to 3.6V specification, noting that battery backup features are exclusive to the 23LCV02M variant. Ensure compatibility with the required SPI mode and clock frequency limits for your system design.

Memory IC Selection Notes

Select this component when a low-pin-count serial memory solution is required for high-speed data logging or buffering. The 23AA02M is suitable for systems needing unlimited write endurance without the complexity of flash programming. Consider the 23LCV02M if external battery backup functionality is necessary, as the 23AA02M lacks the VBAT pin. Verify that the host controller supports the desired interface mode (SPI, SDI, or SQI) to maximize throughput.

Memory IC Part Context

The 23AA02M is part of the 23XX02M family of 2-Mbit serial SRAMs manufactured by Microchip Technology. This series is designed to provide fast, reliable random access memory with low power consumption. The device is RoHS compliant and halogen-free, meeting environmental standards for modern electronics manufacturing.

Memory IC Replacement Considerations

Public confirmed substitute part numbers: 23LCV02M-I/SN