24FC256-I/P

Memory IC Overview

The Microchip Technology 24FC256-I/P is a 32K x 8 (256 Kbit) Serial Electrically Erasable PROM (EEPROM). It operates across a broad voltage range of 1.7V to 5.5V and supports a maximum clock frequency of 1 MHz at VCC ≥ 2.5V, with 400 kHz operation down to 1.7V. The device utilizes a Two-Wire Serial Interface compatible with I²C protocols. It features a 64-byte page write buffer, hardware write-protect capability via the WP pin, and Schmitt trigger inputs for noise suppression. The component is housed in an 8-pin PDIP package and is rated for industrial temperature ranges from -40°C to +85°C.

Memory IC Feature Summary

• Supports high-speed serial data transmission up to 1 MHz under standard operating voltages
• Includes a 64-byte page write buffer to optimize sequential data writing operations
• Provides hardware-based write protection through the dedicated WP pin
• Features Schmitt trigger inputs on SDA and SCL lines to suppress noise spikes

Memory IC Applications

• Personal communications devices requiring non-volatile data storage
• Data acquisition systems needing reliable parameter retention
• Embedded controllers utilizing I²C bus architectures

Memory IC Procurement Notes

Verify that the specific ordering suffix matches the required package type and temperature grade. Confirm the voltage compatibility aligns with the system's power supply rails, as performance characteristics vary between 1.7V and 5.5V thresholds. Ensure the design accounts for the specific electrical requirements of the I²C interface, including pull-up resistor values necessary for stable communication at the intended clock speeds.

Memory IC Selection Notes

Select this component when high-speed serial communication is required within the 24XX256 family. The 24FC256 offers faster clock rates compared to the 24AA256 or 24LC256 variants. Consider the 8-pin PDIP package for through-hole mounting requirements. Verify that the application environment stays within the specified industrial temperature limits and that the single-supply voltage range meets the system's power constraints.

Memory IC Part Context

This part belongs to the 24XX256 series of 256-Kbit Serial EEPROMs manufactured by Microchip Technology. The series includes variants like the 24AA256 and 24LC256, which share similar memory architectures but differ in voltage ranges and maximum clock frequencies. The 24FC256 specifically targets applications demanding higher throughput while maintaining low-power consumption characteristics typical of CMOS technology.

Memory IC Replacement Considerations

Direct substitutes within the same family include the 24AA256 and 24LC256, though they operate at lower maximum clock frequencies. Other packages such as SOIC or TSSOP are available for the same functional device if surface-mount technology is preferred over the PDIP format.