24LC32A-I/P

Memory IC Overview

The Microchip Technology 24LC32A-I/P is a 32-Kbit Electrically Erasable PROM 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 400 kHz at VCC levels 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 PDIP package.

Memory IC Feature Summary

• Supports page write operations with a 32-byte buffer for efficient data transfer
• Includes hardware write-protect functionality via the WP pin to secure array data
• Provides Schmitt trigger inputs on SDA and SCL pins for enhanced noise suppression

Memory IC Applications

• Personal communications devices requiring low-power non-volatile storage
• Data acquisition systems needing reliable parameter retention
• Embedded controllers utilizing I2C bus architecture for configuration memory

Memory IC Procurement Notes

Verify that the specific ordering suffix matches the required package type and temperature grade. Confirm that the voltage supply in the target application meets the minimum 2.5V requirement for the 24LC32A series, distinct from the lower voltage variants. Ensure compatibility with the host controller's I2C pull-up resistor values for proper signal integrity.

Memory IC Selection Notes

Select this component when an industrial temperature range and through-hole mounting are required. The 24LC32A variant specifically supports operation down to 2.5V, distinguishing it from the 24AA32A which supports lower voltages. Consider the 32-byte page write capability if high-throughput writing is necessary compared to byte-write operations.

Memory IC Part Context

This part belongs to the 24XX32A family of 32-Kbit Serial EEPROMs manufactured by Microchip Technology. The family shares identical functional architectures but varies in operating voltage ranges and available packaging options. The 'I' designation indicates the industrial temperature rating, while '/P' specifies the standard plastic dual in-line package format.

Memory IC Replacement Considerations

The 24AA32A serves as a functional substitute within the same family, offering identical memory organization and interface protocols. Note that the 24AA32A supports a wider voltage range starting at 1.7V, whereas the 24LC32A requires a minimum of 2.5V. Other packages such as SOIC or TSSOP may be used if form factor changes are acceptable.