24LC00/ST

Memory IC Overview

The Microchip Technology 24LC00/ST is a 128-bit (16 x 8) serial EEPROM utilizing an I2C-compatible 2-wire interface. It operates within a supply voltage range of 2.5V to 5.5V and supports clock frequencies up to 400 kHz. The device features Schmitt trigger inputs for noise suppression and output slope control to eliminate ground bounce. It offers data retention exceeding 200 years and endurance of over one million erase/write cycles. The component is housed in an 8-lead TSSOP package and is rated for industrial temperature ranges from -40°C to +85°C.

Memory IC Feature Summary

• Low-power CMOS technology with typical active current of 500 µA and standby current of 100 nA
• Integrated Schmitt trigger inputs and filter circuits for enhanced noise spike suppression on SDA and SCL pins
• Self-timed erase/write cycle with acknowledge polling capability to maximize bus throughput
• Hardware data protection via VCC threshold detector that disables write logic during low voltage conditions

Memory IC Applications

• Storage of calibration values
• Retention of ID numbers
• Recording manufacturing information

Memory IC Procurement Notes

Verify the specific ordering suffix against official documentation, as it dictates the package type and temperature grade. Confirm that the 'ST' designation corresponds to the 8-lead TSSOP package variant. Ensure the selected part meets the required industrial operating temperature range of -40°C to +85°C. Cross-reference the manufacturer part number with the latest datasheet revision to confirm pinout compatibility and electrical specifications before integration.

Memory IC Selection Notes

Select this component when a small amount of non-volatile memory is required for simple data storage tasks. It is suitable for applications where low power consumption is critical, given its microampere-level active and nanoampere standby currents. The I2C interface simplifies system design by requiring only two pins for communication. Consider the 128-bit capacity limits; if larger storage is needed, explore other members of the 24XX series with higher bit densities.

Memory IC Part Context

The 24LC00 belongs to the 24AA00/24LC00/24C00 family of serial EEPROMs designed for minimal memory requirements. While sharing the same physical footprint and interface protocols, the 24LC00 differs from the 24AA00 in its minimum operating voltage, which starts at 2.5V rather than 1.8V. This distinction ensures compatibility with standard 3.3V and 5V logic systems without requiring level shifting or low-voltage support.

Memory IC Replacement Considerations

Direct replacements include other variants within the 24LC00 family, such as 24LC00/P (PDIP) or 24LC00/SN (SOIC), provided the package style change is acceptable. For surface-mount alternatives with identical electrical characteristics but different packaging, verify pin-to-pin compatibility. No cross-family substitutes are confirmed without additional verification.