24AA16-I/MS

Memory IC Overview

The Microchip Technology 24AA16-I/MS 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 VCC ≥ 2.5V, or 100 kHz at VCC < 2.5V. The device features a two-wire I2C compatible serial interface, Schmitt trigger inputs for noise suppression, and hardware write-protect functionality via the WP pin. It includes a 16-byte page write buffer and self-timed erase/write cycles. Operating within an industrial temperature range of -40°C to +85°C, it utilizes an 8-lead MSOP package.

Memory IC Feature Summary

• Supports bidirectional two-wire serial communication using I2C compatible protocol
• Features hardware write protection controlled by the WP pin state
• Includes internal address pointer for sequential read operations
• Provides noise suppression through Schmitt trigger inputs on SCL and SDA lines

Memory IC Applications

• Low-power data acquisition systems
• Personal communications devices
• Industrial control applications requiring non-volatile storage
• Embedded systems needing configuration parameter retention

Memory IC Procurement Notes

Verify that the ordering suffix corresponds to the MSOP package type and Industrial temperature grade. Confirm the specific revision level matches the design requirements. Ensure compatibility with the system's I2C bus voltage levels, noting the reduced clock speed requirement below 2.5V. Check for RoHS compliance status if required by environmental regulations.

Memory IC Selection Notes

Select this component when a 16-Kbit EEPROM with low standby current is required. It is suitable for designs operating down to 1.7V. Consider the 16-byte page write buffer for efficient data writing. Verify that the 400 kHz clock rate meets the system timing constraints at the intended operating voltage. Ensure the MSOP package fits the available PCB footprint.

Memory IC Part Context

This part belongs to the 24XX16 family of serial EEPROMs, which also includes the 24LC16B and 24FC16 variants. These devices share similar functional architectures but differ in minimum operating voltage and maximum clock frequency specifications. The 24AA16 series is designed for general-purpose low-voltage applications with standard I2C interface compatibility.

Memory IC Replacement Considerations

Direct substitutes include other 24AA16 variants with different packages such as PDIP or SOIC. Cross-family replacements like 24LC16B require verification of the minimum voltage threshold, as it operates down to 2.5V instead of 1.7V. Ensure any replacement maintains the same memory organization and I2C addressing scheme.