24AA52-I/SN

Memory IC Overview

The Microchip Technology 24AA52-I/SN is a 2 Kbit Electrically Erasable PROM organized as 256 bytes by 8 bits. It operates on a single supply voltage ranging from 1.8V to 5.5V and supports a maximum clock frequency of 400 kHz via an I2C compatible 2-wire serial interface. The device features Schmitt trigger inputs for noise suppression and output slope control to eliminate ground bounce. It includes software write protection for the lower 128 bytes and hardware write protection for the entire array using the WP pin. The industrial temperature range version (-I) functions between -40°C and +85°C, housed in an 8-lead SOIC package.

Memory IC Feature Summary

• Supports bidirectional 2-wire serial communication with up to 400 kHz clock frequency
• Provides dual-level write protection including permanent software locking for half the array and hardware locking for the full array
• Features internal address pointer for sequential read operations and page write buffer for efficient data transfer
• Includes brown-out detection circuitry and Schmitt trigger inputs to ensure reliable operation under noisy conditions

Memory IC Applications

• System configuration storage requiring non-volatile retention
• Parameter storage in low-power embedded systems
• Device identification and calibration data logging
• Industrial control applications operating within extended temperature ranges

Memory IC Procurement Notes

Verify that the ordering suffix matches the required package type and temperature grade. Confirm the specific revision level against the manufacturer datasheet DS21166K. Ensure compatibility with system voltage levels and bus capacitance limits before integration. Check for lead-free finishes if environmental compliance is mandatory for the target application.

Memory IC Selection Notes

Select this component when a small, non-volatile memory solution is needed for storing configuration data or user parameters. It is suitable for designs requiring robust write protection mechanisms to prevent accidental data corruption. Consider the page write capability for applications needing efficient bulk data updates. Verify that the I2C bus speed requirements align with the 400 kHz maximum specification.

Memory IC Part Context

This part belongs to the 24AA52/24LCS52 family of 2 Kbit EEPROMs manufactured by Microchip Technology. The family shares identical functional architectures but may differ in voltage ranges or clock speeds depending on the specific model designation. The 'I' suffix denotes the industrial temperature rating, while '/SN' specifies the surface-mount SOIC package format.

Memory IC Replacement Considerations

Direct substitutes include other 24AA52 variants with different package options such as TSSOP or MSOP. Cross-family replacements like the 24LC52 series offer similar functionality but may have different voltage or speed specifications. Always verify pinout compatibility and electrical characteristics before substituting.