24FC128-I/SN

Memory IC Overview

The Microchip Technology 24FC128-I/SN is a 16K x 8 (128 Kbit) Serial Electrically Erasable PROM (EEPROM). It operates with a single supply voltage ranging from 1.7V to 5.5V and supports a maximum clock frequency of 1 MHz at voltages of 2.5V or higher. The device utilizes a two-wire I2C compatible serial interface and features a 64-byte page write buffer. It includes hardware write protection, Schmitt trigger inputs for noise suppression, and output slope control. The industrial temperature grade (-I) ensures operation within the range of -40°C to +85°C.

Memory IC Feature Summary

• Supports high-speed 1 MHz I2C communication at operating voltages of 2.5V and above
• Includes a 64-byte page write buffer for efficient data transfer operations
• Features hardware write protection via the WP pin to secure memory arrays
• Incorporates Schmitt trigger inputs and output slope control for signal integrity

Memory IC Applications

• Personal communications devices requiring low-power non-volatile storage
• Data acquisition systems needing reliable parameter retention
• Industrial control applications 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 range compatibility with the target system design, as performance characteristics vary below 2.5V. Ensure the hardware write protect pin is correctly configured in the circuit schematic to meet security requirements.

Memory IC Selection Notes

Select this component when a 128 Kbit capacity is required alongside high-speed 1 MHz I2C performance. It is suitable for designs operating between 1.7V and 5.5V where industrial temperature stability is necessary. Consider the 64-byte page write capability for optimizing write throughput in application software.

Memory IC Part Context

This part belongs to the 24XX128 family, which includes the 24AA128 and 24LC128 variants. The 24FC128 specifically distinguishes itself by supporting up to 1 MHz clock speeds at higher voltages, whereas other family members are limited to 400 kHz. All variants share the same 128 Kbit architecture and I2C interface protocol.

Memory IC Replacement Considerations

The 24LC128 offers similar functionality but is limited to a 400 kHz clock frequency. The 24AA128 also supports 400 kHz operation. Both serve as functional alternatives if high-speed 1 MHz performance is not required.