47C04T-E/SN

Overview

The Microchip Technology 47C04T-E/SN is a 4-kbit Electrically Erasable and Readable Memory (EERAM) integrated circuit. It combines SRAM with EEPROM backup functionality, ensuring data retention without external battery support. The device operates on a single 5.0V supply within the industrial temperature range of -40°C to +85°C. It features an I2C interface supporting clock frequencies up to 1 MHz. The component is housed in an 8-SOIC package with a width of 3.90mm. Access time is specified at 400 ns, and it supports page write operations.

Feature Summary

• Integrates SRAM speed with non-volatile EEPROM backup for seamless data preservation
• Supports high-speed I2C communication interface for efficient data transfer
• Operates reliably across the full industrial temperature range
• Eliminates the need for external battery circuits for data retention

Applications

• Industrial control systems requiring persistent configuration storage
• Data logging applications needing frequent write cycles
• Embedded systems with limited board space for memory components
• Automotive electronics operating in harsh thermal environments

Procurement Notes

Verify the specific suffix 'T' indicates tape and reel packaging when ordering. Confirm the '-E' designation aligns with the required industrial temperature range specifications. Ensure compatibility with existing I2C bus voltage levels and pull-up resistor configurations. Cross-reference the datasheet revision date to confirm current electrical characteristics and pinout definitions before finalizing procurement.

Selection Notes

Select this component when non-volatile data retention is critical without battery maintenance. It is suitable for designs requiring fast random access speeds combined with permanent storage. Consider the 8-SOIC package constraints for PCB layout. Verify that the I2C address conflicts are resolved within the system architecture. Evaluate power consumption requirements against the 5.0V supply capability.

Part Context

This part belongs to Microchip's EERAM family, which merges volatile SRAM performance with non-volatile EEPROM endurance. The 47C04 variant specifically offers 4-kbit capacity. The 'T' suffix denotes tape and reel packaging for automated assembly. The 'SN' indicates the SOIC package style. This series is designed for applications demanding high write cycle endurance and rapid data access.

Replacement Considerations

The 47C04-E/SN is a compatible alternative without the tape and reel packaging. Verify package dimensions and pin compatibility before substitution. Ensure the replacement part meets the same industrial temperature range requirements. Check for any differences in I2C timing parameters or power consumption profiles.