24LC32AT/SN

Memory IC Overview

The Microchip Technology 24LC32AT/SN is a 32-Kbit Electrically Erasable PROM (EEPROM) organized as a single block of 4K x 8-bit memory. It features a two-wire serial interface compatible with I2C protocols, supporting clock frequencies up to 400 kHz for VCC between 2.5V and 5.5V. The device operates within an industrial temperature range of -40°C to +85°C and utilizes an 8-lead SOIC package.

Memory IC Feature Summary

• Supports page write operations with a 32-byte buffer to enhance bus throughput efficiency.
• Includes hardware write protection via the WP pin to inhibit array writes when tied high.
• Features Schmitt trigger inputs on SDA and SCL lines for improved noise suppression.

Memory IC Applications

• Data acquisition systems requiring non-volatile storage
• Personal communications devices needing low-power memory
• Industrial control applications utilizing I2C bus architectures

Memory IC Procurement Notes

Verify that the specific ordering suffix matches the required package type and temperature grade. Confirm voltage operation requirements align with the 2.5V minimum specification for the LC series. Ensure compatibility with existing I2C bus pull-up resistor configurations before finalizing procurement orders.

Memory IC Selection Notes

Select this component for designs requiring 32-Kbit capacity with standard I2C connectivity. Consider the 8-lead SOIC package for surface mount assembly needs. Evaluate power consumption constraints against the typical standby current specifications provided in the datasheet electrical characteristics tables.

Memory IC Part Context

This part belongs to the 24XX32A family of serial EEPROMs manufactured by Microchip Technology. The family includes variants such as the 24AA32A which supports lower voltage operation down to 1.7V. The 24LC32A specifically targets applications requiring operation from 2.5V to 5.5V supply rails.

Memory IC Replacement Considerations

Direct substitutes include other 24LC32A variants with different package options such as TSSOP or MSOP. Cross-reference with 24AA32A parts if lower voltage operation is acceptable, noting the difference in minimum supply voltage requirements.

Memory IC FAQ

How does the hardware write-protect feature function?

Tying the WP pin to VCC inhibits all write operations to the array while leaving read operations unaffected. Writing is enabled when the pin is connected to VSS.

What is the maximum clock frequency supported?

The device supports a maximum clock frequency of 400 kHz when the supply voltage is between 2.5V and 5.5V.