93LC76CT-I/MS

Memory IC Overview

The Microchip Technology 93LC76CT-I/MS is an 8Kbit serial Electrically Erasable PROM (EEPROM) utilizing low-power CMOS technology. It features a Microwire-compatible 3-wire serial interface with a maximum clock frequency of 3 MHz at VCC ≥ 4.5V. The device supports word-selectable memory organization via the ORG pin, allowing configuration as either 1024 x 8-bit or 512 x 16-bit. It includes a dedicated Program Enable (PE) pin for hardware write protection and operates within a supply voltage range of 2.5V to 5.5V. The component is housed in an 8-lead MSOP package and is rated for industrial temperature applications.

Memory IC Feature Summary

• Configurable memory organization selectable between 8-bit and 16-bit word sizes via the external ORG pin logic level.
• Hardware write protection capability provided by the dedicated PE pin, which inhibits array programming when tied to ground.
• Self-timed erase and write cycles with automatic ready/busy status signaling on the DO pin during programming operations.
• Integrated power-on/off data protection circuitry that prevents accidental writes during low-voltage conditions.

Memory IC Applications

• Nonvolatile storage for system configuration parameters and calibration data
• Secure data retention in industrial control systems requiring hardware-level write protection
• Embedded memory for microcontroller-based devices needing low-power serial EEPROM

Memory IC Procurement Notes

Verify the specific suffix 'I' confirms the Industrial temperature grade (-40°C to +85°C) and 'MS' denotes the 8-lead MSOP package. Confirm the 'T' indicates tape-and-reel packaging if required for automated assembly. Ensure the source document explicitly lists this exact part number variant to avoid confusion with similar packages or temperature grades.

Memory IC Selection Notes

Select this component when a Microwire interface is preferred over SPI. The 93LC76C variant is necessary if hardware write protection via the PE pin is required, unlike the 93LC76A/B versions. Ensure the application voltage remains above 2.5V for proper operation of the 93LC series. Consider the MSOP package dimensions for PCB layout constraints.

Memory IC Part Context

This device belongs to the 93XX76 family of 8Kbit serial EEPROMs from Microchip Technology. The 'LC' designation indicates a 2.5V minimum operating voltage, distinguishing it from the 1.8V AA series and 4.5V C series. The 'C' suffix in the base model signifies the inclusion of the ORG and PE pins for flexible configuration and security.

Memory IC Replacement Considerations

Direct substitutes include other 93LC76 variants with different packages such as 93LC76C-I/ST (TSSOP) or 93LC76C-I/MS (MSOP). Cross-family replacements like 93AA76C offer lower voltage support but share the same interface and pinout structure.