24LC01BHT-E/ST

Memory IC Overview

The Microchip Technology 24LC01BHT-E/ST is a 1 Kbit (128 x 8) Electrically Erasable PROM featuring a 2-wire I2C compatible serial interface. It operates on a single supply voltage ranging from 2.5V to 5.5V and utilizes low-power CMOS technology. The device supports a maximum clock frequency of 400 kHz, with an access time of 900 ns at VCC = 5.5V. It offers hardware write-protect functionality for half the array via the WP pin, ensuring data integrity. The component is rated for an industrial temperature range of -40°C to +125°C and is housed in an 8-lead TSSOP package.

Memory IC Feature Summary

• Hardware write-protect capability allows locking the upper half of the memory array (addresses 40h-7Fh) when the WP pin is tied high.
• Integrated Schmitt trigger inputs and output slope control provide noise suppression and eliminate ground bounce during operation.
• Supports page write operations allowing up to 8 bytes of data to be written simultaneously into the internal page buffer.
• Includes acknowledge polling feature to maximize bus throughput by detecting when internal write cycles are complete.

Memory IC Applications

• Data logging applications requiring non-volatile storage of sensor readings or system parameters.
• Configuration storage for microcontrollers and embedded systems needing persistent settings.
• Calibration data retention in industrial instrumentation and automotive electronics.
• Small-scale data backup in portable devices and smart cards.

Memory IC Procurement Notes

Verify that the ordering suffix 'HT' corresponds to the tape-and-reel packaging format required for automated surface-mount assembly processes. Confirm the 'E' suffix indicates the extended industrial temperature grade (-40°C to +125°C) suitable for harsh environments. Ensure compatibility with the target PCB footprint for the 8-lead TSSOP package dimensions.

Memory IC Selection Notes

Select this part when a compact surface-mount EEPROM with half-array write protection is required. It is suitable for designs operating between 2.5V and 5.5V where low standby current is beneficial. Choose this over the 24AA01H variant if the application requires a minimum operating voltage of 2.5V rather than 1.7V. Consider the TSSOP package for space-constrained boards compared to larger DIP options.

Memory IC Part Context

This component belongs to the 24LC01BH family of 1 Kbit serial EEPROMs manufactured by Microchip Technology. It shares functional similarities with other members like the 24LC01B but includes specific enhancements such as hardware write protection and improved noise immunity features. The family is designed for cost-effective, reliable non-volatile memory solutions in consumer and industrial electronics.

Memory IC Replacement Considerations

Direct substitutes within the same package and specification include the 24LC01BH-E/ST. Other variants in the 24LC01B series may require verification of voltage ranges and temperature grades before substitution.