24LC1026T-I/SN

Memory IC Overview

The Microchip Technology 24LC1026T-I/SN is a 1 Mbit (128K x 8) serial electrically erasable PROM featuring an I²C-compatible 2-wire interface. It operates within a voltage range of 2.5V to 5.5V and supports clock frequencies up to 400 kHz. The device utilizes low-power CMOS technology with a maximum read current of 450 µA and standby current of 5 µA. It includes a 128-byte page write buffer, hardware write protection via the WP pin, and Schmitt trigger inputs for noise suppression. The component is housed in an 8-lead SOIC package and functions across industrial temperatures from -40°C to +85°C.

Memory IC Feature Summary

• Supports bidirectional data transfer over a standard two-wire serial bus compatible with I²C protocols.
• Features a 128-byte page write buffer that allows efficient sequential data storage operations.
• Includes hardware write protection capabilities controlled by the dedicated WP pin state.
• Provides electrostatic discharge protection exceeding 4000V on all input and output pins.

Memory IC Applications

• Personal communication devices requiring non-volatile data retention
• Data acquisition systems needing reliable memory storage
• Industrial control applications operating within specified temperature ranges

Memory IC Procurement Notes

Verify the specific suffix 'I' confirms the industrial temperature grade (-40°C to +85°C) and 'SN' denotes the 8-lead SOIC package. Confirm the trailing 'T' indicates tape-and-reel packaging rather than cut tape or tube. Ensure the datasheet version matches the required electrical specifications for the 24LC1026 variant, specifically the 2.5V minimum supply voltage constraint.

Memory IC Selection Notes

Select this component when a 1 Mbit capacity is required with I²C connectivity. It is suitable for designs where low standby power consumption is critical. Consider the 128-byte page size for write efficiency. Verify that the system voltage remains above 2.5V to ensure proper operation at the maximum 400 kHz clock speed.

Memory IC Part Context

This part belongs to the 24XX1026 family, which also includes the 24AA1026 and 24FC1026 variants. These devices share identical functional architectures and pinouts but differ in supply voltage ranges and maximum clock frequencies. The 24LC1026 specifically targets applications requiring a 2.5V to 5.5V operating range.

Memory IC Replacement Considerations

The 24AA1026 offers similar functionality with a wider 1.7V to 5.5V voltage range. The 24FC1026 provides higher speed performance up to 1 MHz but requires a 1.8V minimum supply voltage. Direct pin-to-pin substitution is possible if voltage and speed requirements align.