24AA32A-I/P

Memory IC Overview

The Microchip Technology 24AA32A-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. The device operates on a single supply voltage ranging from 1.7V to 5.5V, supporting maximum clock frequencies of 400 kHz for VCC ≥ 2.5V and 100 kHz for lower voltages. It includes a 32-byte page write buffer, hardware write-protect functionality, and Schmitt trigger inputs for noise suppression. The industrial temperature grade (-40°C to +85°C) version utilizes an 8-lead PDIP package.

Memory IC Feature Summary

• Supports bidirectional data transmission via a two-wire serial bus protocol
• Includes a 32-byte page write buffer for efficient data storage operations
• Features hardware write protection controlled by the WP pin
• Provides high ESD protection exceeding 4,000V on all pins

Memory IC Applications

• Personal communications devices requiring low-power non-volatile storage
• Data acquisition systems needing reliable parameter retention
• Industrial control applications utilizing I2C communication buses

Memory IC Procurement Notes

Verify the specific suffix 'I/P' corresponds to the Industrial temperature range and PDIP package type. Confirm that the required operating voltage aligns with the 1.7V to 5.5V specification. Ensure the design accommodates the necessary pull-up resistors for the SDA and SCL lines. Check for RoHS compliance requirements if applicable to the manufacturing process.

Memory IC Selection Notes

Select this component when a 32-Kbit capacity is sufficient for the application's data storage needs. Choose this part over the 24LC32A variant if operation below 2.5V is required, as the LC series minimum voltage is higher. Consider the PDIP package only if through-hole mounting is mandated by the PCB layout constraints.

Memory IC Part Context

This component belongs to the 24XX32A family of serial EEPROMs manufactured by Microchip Technology. It shares functional similarities with other members like the 24LC32A but differs in voltage specifications. The family supports multiple package options including SOIC, MSOP, and DFN, allowing flexibility in board space utilization while maintaining consistent electrical characteristics across variants.

Memory IC Replacement Considerations

The 24LC32A serves as a functional substitute within the same family, though it requires a minimum supply voltage of 2.5V compared to the 1.7V minimum of the 24AA32A. Other 32-Kbit I2C EEPROMs may require verification of voltage compatibility and pinout alignment before substitution.