24LC64T-I/MS

Memory IC Overview

The Microchip Technology 24LC64T-I/MS is a 64-Kbit Electrically Erasable PROM (EEPROM) organized as an 8K x 8-bit memory block. It features a two-wire I2C compatible serial interface with a maximum clock frequency of 400 kHz at supply voltages between 2.5V and 5.5V. The device supports page write operations with a 32-byte buffer and includes hardware write protection via the WP pin. It operates within an industrial temperature range of -40°C to +85°C and is housed in an 8-lead MSOP package.

Memory IC Feature Summary

• Supports bidirectional, two-wire serial data transmission protocol compatible with I2C standards
• Includes a 32-byte page write buffer for efficient data storage operations
• Features Schmitt trigger inputs on SDA and SCL pins for improved noise suppression
• Provides hardware write protection capability through the dedicated WP pin

Memory IC Applications

• Data logging systems requiring non-volatile storage
• Configuration parameter storage in embedded controllers
• Calibration data retention for sensor modules
• Device identification and serial number storage

Memory IC Procurement Notes

Verify that the operating voltage meets the minimum 2.5V requirement for the 24LC64 series, as it differs from the 1.7V capable 24AA64. Confirm the MSOP package compatibility with your PCB footprint. Ensure the application design accounts for the 5ms maximum write cycle time when implementing acknowledge polling or bus throughput optimization strategies.

Memory IC Selection Notes

Select this component when a 64-Kbit capacity is required with standard I2C connectivity. The 24LC64 is distinct from the 24FC64 due to its lower maximum clock speed of 400 kHz compared to 1 MHz. Choose the 'I' suffix version for industrial temperature applications ranging from -40°C to +85°C. The MSOP package is suitable for space-constrained surface-mount designs.

Memory IC Part Context

This part belongs to the 24XX64 family of serial EEPROMs manufactured by Microchip Technology. The family includes variants like the 24AA64 and 24FC64, which share similar memory architectures but differ in voltage ranges and clock speeds. The 24LC64 specifically targets applications requiring operation down to 2.5V with reliable I2C communication at standard and fast mode speeds.

Memory IC Replacement Considerations

The 24LC64-I/MS is a direct tube-packaged equivalent. For higher speed requirements, the 24FC64T-I/MS offers 1 MHz clock support. For lower voltage operation starting at 1.7V, consider the 24AA64T-I/MS. All these parts share the same 8-MSOP package and pinout.