24FC16HT-E/OT

Memory IC Overview

The Microchip Technology 24FC16HT-E/OT is a 16-Kbit Electrically Erasable PROM organized as eight blocks of 256 x 8-bit memory. It features a two-wire serial interface compatible with I2C protocols, supporting clock frequencies up to 1 MHz when VCC is between 1.7V and 5.5V. The device operates within an extended temperature range of -40°C to +125°C and utilizes low-power CMOS technology with standby currents as low as 3 μA. It includes hardware write-protect capabilities for half the array and is available in a 5-lead SOT-23 package.

Memory IC Feature Summary

• Supports high-speed I2C communication with clock frequencies reaching 1 MHz across the full operating voltage range.
• Provides hardware-based write protection for the upper half of the memory array via the WP pin.
• Incorporates Schmitt trigger inputs and noise suppression filters to ensure reliable data transmission on noisy buses.
• Features output slope control designed to eliminate ground bounce during switching operations.

Memory IC Applications

• Data logging in industrial sensors requiring non-volatile storage under extreme temperatures
• Configuration storage for embedded systems utilizing I2C microcontrollers
• Calibration parameter retention in automotive electronic control units

Memory IC Procurement Notes

Verify that the specific suffix 'E' confirms the extended temperature grade (-40°C to +125°C) rather than the industrial grade. Confirm the 'HT' designation aligns with the required tape-and-reel packaging format for automated assembly processes. Ensure the 5-lead SOT-23 footprint matches the target PCB layout constraints.

Memory IC Selection Notes

Select this component when operation below 2.5V is required alongside high-speed 1 MHz I2C performance. Unlike the 24LC16BH variant which is limited to 400 kHz, this part supports faster bus speeds at lower voltages. Choose this over the 24AA16H if higher clock frequency compatibility is necessary for system throughput requirements.

Memory IC Part Context

This device belongs to the 24XX16H family of serial EEPROMs from Microchip Technology. It shares architectural similarities with the 24AA16H and 24LC16BH but distinguishes itself through superior high-frequency performance at low supply voltages. The family offers various package options including SOIC, TSSOP, and SOT-23 to accommodate different board space limitations.

Memory IC Replacement Considerations

The 24FC16H serves as the base model without the specific thermal or packaging suffixes. The 24LC16BH is a functional alternative but is restricted to 400 kHz operation. The 24AA16H provides similar voltage ranges but also limits clock speed to 400 kHz above 2.5V.