47L04T-I/SN

Overview

The Microchip Technology 47L04T-I/SN is a 4-kbit Electrically Erasable RAM (EERAM) device utilizing I2C serial interface technology. It integrates SRAM speed with EEPROM non-volatility, offering a 512 x 8 memory organization. The component operates within a supply voltage range of 2.7V to 3.6V and supports clock frequencies up to 1 MHz. Key electrical parameters include a 400 ns access time and a 1 ms write cycle duration. Designed for industrial environments, it functions reliably between -40°C and +125°C. The device is housed in an 8-SOIC surface-mount package.

Feature Summary

• Combines high-speed SRAM read/write performance with non-volatile data retention capabilities
• Supports standard I2C two-wire serial communication protocol
• Eliminates the need for external battery backup circuits due to inherent non-volatility

Applications

• Industrial control systems requiring persistent parameter storage
• Consumer electronics needing configuration data retention without batteries
• Automotive modules operating under extended temperature conditions

Procurement Notes

Verify the specific suffix against official Microchip documentation to confirm package type and temperature grade. Ensure the ordering code matches the required I2C address configuration if applicable. Confirm RoHS compliance status through current datasheets before finalizing procurement specifications.

Selection Notes

Select this component when non-volatile storage with SRAM-like speed is required in a compact surface-mount form factor. Consider the 1 MHz I2C limit and 3.6V maximum voltage rating during system design. Evaluate thermal requirements against the specified industrial temperature range for long-term reliability.

Part Context

This part belongs to the Microchip 47L04 series of serial EERAM devices. These components are designed to replace traditional EEPROM or battery-backed SRAM solutions. The series provides a cost-effective alternative for applications demanding frequent data updates with guaranteed data retention over extended periods.

Replacement Considerations

Consult official Microchip substitution guides for verified alternatives. Generic cross-references may not match the specific EERAM architecture or I2C timing requirements.