24LC16BH-I/SN

Memory IC Overview

The Microchip Technology 24LC16BH-I/SN is a 16-Kbit Electrically Erasable PROM organized as eight blocks of 256 x 8-bit memory. It operates on a single supply voltage ranging from 2.5V to 5.5V with a maximum clock frequency of 400 kHz. The device features a two-wire serial interface compatible with I2C protocols, utilizing Schmitt trigger inputs for noise suppression and output slope control to eliminate ground bounce. Key electrical parameters include a maximum read current of 1 mA, standby current of 5 µA at extended temperatures, and an access time of 900 ns. It supports page write operations with a 16-byte buffer and includes hardware write protection for the upper half of the array.

Memory IC Feature Summary

• Hardware write-protect capability for the upper half of the memory array via the WP pin
• Low-power CMOS technology ensuring minimal active and standby current consumption
• Integrated 16-byte page write buffer to optimize data transfer efficiency
• Schmitt trigger inputs and output slope control for enhanced signal integrity

Memory IC Applications

• Industrial systems requiring non-volatile data storage with industrial temperature ratings
• Embedded controllers needing secure configuration parameter retention
• I2C bus networks requiring half-array write protection for critical data segments

Memory IC Procurement Notes

Verify the specific suffix 'SN' corresponds to the 8-Lead Plastic Small Outline package when sourcing. Confirm the 'I' designation matches the required -40°C to +85°C operating range. Ensure the 'BH' variant is selected specifically for the 2.5V minimum supply requirement rather than lower voltage alternatives. Cross-reference datasheet DS20002118B for accurate pinout and electrical specifications prior to integration.

Memory IC Selection Notes

Select this component for applications requiring a 2.5V to 5.5V supply range and I2C compatibility. The 24LC16BH differs from the 24AA16H by its higher minimum voltage threshold. Consider the 16-byte page buffer for efficient bulk writes. Verify that the SOIC-8 package dimensions align with the PCB layout constraints. Check if the half-array write protection feature meets the security requirements for the stored data.

Memory IC Part Context

This part belongs to the 24XX16H family of 16-Kbit Serial EEPROMs manufactured by Microchip Technology. It shares architectural similarities with the 24AA16H and 24FC16H but is distinguished by its 2.5V minimum operating voltage. The family utilizes a standardized I2C interface and offers various package options including MSOP, PDIP, SOIC, TDFN, TSSOP, and SOT-23.

Memory IC Replacement Considerations

24LC16BH-E/SN (Extended temperature version)

Memory IC FAQ

How does the Write-Protect (WP) pin function?

Tying the WP pin to VCC inhibits write operations for the upper half of the memory array (addresses 400h-7FFh), while tying it to VSS enables full read/write access.

What is the maximum clock frequency for this device?

The maximum clock frequency is 400 kHz when the supply voltage is between 2.5V and 5.5V.