24AA256T-I/MNY

Memory IC Overview

The Microchip 24AA256T-I/MNY is a 32K x 8 (256-Kbit) Serial Electrically Erasable PROM. It operates on a single supply voltage ranging from 1.7V to 5.5V and supports I2C compatible two-wire serial interfaces with clock frequencies up to 400 kHz. The device features a 64-byte page write buffer, hardware write protection via the WP pin, and Schmitt trigger inputs for noise suppression. It is housed in an 8-WFDFN package with exposed pad and functions within an industrial temperature range of -40°C to +85°C.

Memory IC Feature Summary

• Supports cascading up to eight devices on the same bus using functional address lines A0, A1, and A2.
• Includes hardware write protection controlled by the WP pin to inhibit array writes when tied high.
• Features output slope control designed to eliminate ground bounce during operation.

Memory IC Applications

• Personal communications systems
• Data acquisition applications
• Low-power embedded memory storage

Memory IC Procurement Notes

Verify that the ordering suffix 'MNY' corresponds specifically to the 8-WFDFN package variant required for your design. Confirm the 'I' designation matches the necessary industrial temperature range specifications. Ensure compatibility with the host controller's I2C voltage levels and pull-up resistor requirements before finalizing procurement.

Memory IC Selection Notes

Select this component for designs requiring low-voltage operation down to 1.7V and robust noise immunity through Schmitt trigger inputs. Consider the 64-byte page write capability for efficient data buffering. Verify that the 8-WFDFN package dimensions fit the available PCB space and thermal management constraints.

Memory IC Part Context

This part belongs to the 24AA256 family of 256-Kbit I2C Serial EEPROMs manufactured by Microchip Technology. The series includes variants like the 24LC256 and 24FC256, distinguished primarily by minimum operating voltages and maximum clock speeds. The 24AA256 specifically targets broad voltage ranges starting at 1.7V.

Memory IC Replacement Considerations

Direct substitutes include other 24AA256 variants with different packages such as 24AA256T-I/ST or 24AA256T-I/MF. Cross-family replacements like the 24LC256 require verification of the 2.5V minimum voltage constraint.