24AA16T-I/OT

Memory IC Overview

The Microchip Technology 24AA16T-I/OT is a 16-Kbit Electrically Erasable PROM organized as eight blocks of 256 x 8-bit memory. It operates with a single supply voltage ranging from 1.7V to 5.5V and supports a maximum clock frequency of 400 kHz at voltages above 2.5V, or 100 kHz below 2.5V. The device utilizes a two-wire I2C compatible serial interface and features a 16-byte page write buffer. It is housed in a 5-lead SOT-23 package and is rated for industrial temperature operation between -40°C and +85°C.

Memory IC Feature Summary

• Supports low-voltage operation down to 1.7V with minimal active and standby current consumption.
• Includes hardware write protection via the WP pin to inhibit write operations when tied to VCC.
• Features Schmitt trigger inputs and noise suppression filters on SDA and SCL lines for reliable data transmission.
• Provides acknowledge polling capability to maximize bus throughput during internal write cycles.

Memory IC Applications

• Non-volatile data storage in battery-powered consumer electronics
• Configuration parameter retention in embedded systems
• Calibration data storage for sensor interfaces

Memory IC Procurement Notes

Verify that the specific ordering suffix matches the required package type and temperature grade. Confirm the voltage range compatibility with the target system's power supply rails. Ensure the I2C bus pull-up resistor values align with the operating voltage and desired clock speed specifications defined in the datasheet.

Memory IC Selection Notes

Select this component for applications requiring small footprint memory with robust noise immunity. The SOT-23 package offers space efficiency for compact designs. Consider the 100 kHz limit at lower voltages when designing high-speed communication links. Verify that the hardware write protect mechanism meets the security requirements of the application.

Memory IC Part Context

This part belongs to the 24XX16 family of serial EEPROMs, which includes variants like the 24LC16B and 24FC16. While sharing similar memory architecture and interface protocols, differences exist in minimum operating voltage and maximum clock frequency. The 'I' designation indicates industrial temperature range compliance, and 'OT' specifies the SOT-23 surface-mount packaging.

Memory IC Replacement Considerations

Direct substitutes within the same family include other 24AA16 variants with different packages such as SOIC or TSSOP. Cross-family replacements like the 24AA02 or 24AA64 offer different capacities but maintain interface compatibility. Always verify pinout consistency and electrical characteristics before substitution.