St MicroElectronics 93C46 1Kbit Microwire Serial EEPROM SMD SOIC-8

The St MicroElectronics 93C46 1Kbit Microwire Serial EEPROM is a 1Kbit (128 x 8bit) electrically erasable programmable read-only memory supplied in an 8-pin SOIC surface-mount package. It uses the industry-standard MICROWIRE serial bus for compatibility with a range of microcontrollers and digital systems.

Overview

The memory array can be configured either as bytes (x8b) or as words (x16b), giving flexibility for different data storage requirements. The device operates from a single supply voltage of 2.5 V to 5.5 V, making it suitable for both 3.3 V and 5 V systems. A 2 MHz clock frequency supports fast data transfer, and a sequential read operation allows efficient data retrieval.

Key Features

• 1Kbit (128 x 8bit) memory configuration
• Industry-standard MICROWIRE serial bus interface
• Single supply voltage range of 2.5 V to 5.5 V
• Clock frequency of 2 MHz
• Byte, word, or entire memory programming
• Self-timed programming cycle with auto erase (5 ms)
• Sequential read operation
• Enhanced ESD and latch-up behaviour
• More than 1 million write cycles
• Data retention of more than 40 years
• Operating temperature range of -40 °C to +85 °C
• 8-pin SOIC surface-mount package

Applications

The self-timed programming cycle simplifies write operations, and the device is designed with enhanced ESD and latch-up behaviour for demanding environments. With more than 1 million write cycles and over 40 years of data retention, it supports dependable long-term storage. The device is widely used in embedded design development, consumer electronics, and portable devices, and its operating range of -40 °C to +85 °C makes it suitable for industrial and consumer applications. The compact SOIC package is suitable for automated assembly.

Choose the St MicroElectronics 93C46 1Kbit Microwire Serial EEPROM for compact, non-volatile data storage in 3.3 V and 5 V designs that require a MICROWIRE serial interface.