Microchip Technology

93LC46B-E/MS

93LC46B-E/MS Description

The 93LC46B-E/MS is a 1Kbit Microwire-compatible serial EEPROM from Microchip Technology, designed for reliable non-volatile data storage in low-power embedded systems. Housed in an 8-pin MSOP package, it features a 64 x 16 memory organization and operates across a wide voltage range (2.5V–5.5V), making it suitable for both 3.3V and 5V applications. With a 2MHz clock frequency and 6ms write cycle time, it balances speed and efficiency, while its Microwire interface ensures straightforward integration with microcontrollers. The device is RoHS3 compliant, REACH unaffected, and rated for MSL 1 (unlimited shelf life), ensuring environmental and handling reliability.

93LC46B-E/MS Features

• Memory & Interface: 1Kbit (64 x 16) EEPROM with Microwire serial interface for easy MCU communication.
• Wide Voltage Range: Operates from 2.5V to 5.5V, supporting mixed-voltage systems.
• High-Speed Performance: 2MHz clock frequency and 6ms write time for efficient data updates.
• Endurance & Retention: Guaranteed 1 million write cycles and 200-year data retention.
• Robust Packaging: 8MSOP surface-mount package ideal for space-constrained designs.
• Compliance: RoHS3, REACH, and EAR99 certified, with MSL 1 for extended storage.

93LC46B-E/MS Applications

• Industrial Control Systems: Stores calibration data, device parameters, and event logs.
• Consumer Electronics: Retains user settings in smart home devices, wearables, and IoT nodes.
• Automotive Modules: Non-volatile memory for infotainment, sensors, and telematics.
• Medical Devices: Safeguards critical configuration data in portable diagnostic equipment.
• Embedded Systems: Ideal for firmware backup, small-scale data logging, and bootloaders.

Conclusion of 93LC46B-E/MS

The 93LC46B-E/MS stands out for its low-power operation, wide voltage compatibility, and Microwire simplicity, making it a versatile choice for applications demanding reliable, small-footprint EEPROM storage. Its industrial-grade endurance, long data retention, and compliance with environmental standards further enhance its suitability for harsh or regulated environments. Engineers favor this model for its balance of performance, cost, and ease of integration in space-constrained designs.