24FC04-E/ST

Memory IC Overview

The Microchip Technology 24FC04-E/ST is a 4-Kbit Electrically Erasable PROM (EEPROM) organized as two blocks of 256 x 8-bit memory. It features a two-wire serial interface compatible with I2C protocols, supporting maximum clock frequencies up to 1 MHz across a supply voltage range of 1.7V to 5.5V. The device operates within an extended temperature range of -40°C to +125°C and utilizes low-power CMOS technology.

Memory IC Feature Summary

• Supports high-speed data transmission with compatibility for 100 kHz, 400 kHz, and 1 MHz bus speeds
• Includes hardware write-protect functionality via the WP pin to secure the entire memory array
• Features Schmitt trigger inputs and filter circuits to suppress noise spikes on the serial bus
• Provides output slope control designed to eliminate ground bounce during operation

Memory IC Applications

• Data logging in industrial environments requiring extended temperature stability
• Configuration storage for embedded systems operating at low voltages
• Parameter retention in consumer electronics utilizing I2C communication buses

Memory IC Procurement Notes

Verify that the specific ordering suffix corresponds to the ST package type, which denotes an 8-lead TSSOP configuration. Confirm the 'E' designation indicates the extended temperature grade suitable for operation up to +125°C. Ensure the required clock frequency aligns with the device's 1 MHz capability rather than lower speed variants.

Memory IC Selection Notes

Select this component when application requirements demand operation below 2.5V, as it supports voltages down to 1.7V unlike the 24LC04B series. Choose this part over standard industrial grades if the environment exceeds +85°C. Verify that the TSSOP package dimensions fit the available PCB space compared to larger DIP or SOIC options.

Memory IC Part Context

This device belongs to the 24XX04 family of serial EEPROMs manufactured by Microchip Technology. It shares architectural similarities with the 24AA04 and 24LC04B but offers distinct electrical advantages regarding voltage range and clock speed. The family provides non-volatile memory solutions for various packaging needs including DFN, MSOP, and SOT-23.

Memory IC Replacement Considerations

The 24AA04 serves as a functional substitute but is limited to a maximum clock frequency of 400 kHz. The 24LC04B requires a minimum supply voltage of 2.5V, making it unsuitable for applications operating between 1.7V and 2.5V.