24LC32A-I/ST

Memory IC Overview

The Microchip Technology 24LC32A-I/ST 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 maximum clock frequencies of 100 kHz and 400 kHz. The device operates on a single supply voltage ranging from 2.5V to 5.5V. It includes hardware write-protect capabilities, Schmitt trigger inputs for noise suppression, and output slope control to eliminate ground bounce.

Memory IC Feature Summary

• Supports page write operations with a 32-byte page write buffer
• Includes hardware write-protect functionality via the WP pin
• Features Schmitt trigger inputs for improved noise spike suppression
• Provides acknowledge polling capability to maximize bus throughput

Memory IC Applications

• Personal communications devices requiring low-power non-volatile storage
• Data acquisition systems needing reliable parameter retention
• Embedded controllers utilizing I2C bus architectures
• Industrial applications operating within specified temperature ranges

Memory IC Procurement Notes

Verify that the ordering suffix 'I' corresponds to the Industrial temperature range (-40°C to +85°C) and 'ST' indicates the 8-Lead TSSOP package. Confirm the specific revision level matches the design requirements. Ensure compatibility with the host controller's I2C voltage levels and pull-up resistor configurations before integration.

Memory IC Selection Notes

Select this component when a 32-Kbit EEPROM capacity is required with I2C connectivity. The Industrial temperature rating suits environments between -40°C and +85°C. Consider the 8-Lead TSSOP package for surface-mount assembly constraints. Verify that the 2.5V minimum supply voltage aligns with the system power rails, distinguishing it from lower-voltage variants.

Memory IC Part Context

This part belongs to the 24AA32A/24LC32A family of 32-Kbit Serial EEPROMs manufactured by Microchip Technology. The 'LC' designation specifies operation down to 2.5V, whereas 'AA' variants support lower voltages. The 'I' suffix denotes Industrial temperature performance, and 'ST' identifies the Thin Shrink Small Outline Package variant.

Memory IC Replacement Considerations

Direct substitutes include other 24LC32A variants with different packages such as 24LC32A-I/P or 24LC32A-I/SN. Cross-family replacements like 24AA32A require verification of voltage compatibility. Ensure any alternative maintains I2C protocol support and similar physical dimensions if board space is constrained.