47C04T-I/SN

Overview

The Microchip Technology 47C04T-I/SN is a non-volatile Static Random Access Memory (SRAM) IC belonging to the 47C04 series. It provides a storage capacity of 4 kbit, organized as 512 words by 8 bits. The device utilizes an I2C serial interface with a maximum clock frequency of 1 MHz and features a fast access time of 400 ns. It operates within a supply voltage range of 4.5 V to 5.5 V and supports surface mount installation in an 8-TSSOP package. The component is rated for industrial operating temperatures from -40°C to +85°C.

Feature Summary

• Combines SRAM speed with EEPROM non-volatility via EERAM technology
• Supports high-speed I2C communication up to 1 MHz
• Provides instant data retention without power cycling

Applications

• Industrial control systems requiring reliable data logging
• Consumer electronics needing persistent configuration storage
• Automotive modules demanding robust memory performance

Procurement Notes

Verify the specific suffix 'T' against official Microchip documentation to confirm tape-and-reel packaging status, as standard listings may vary. Ensure the voltage rating matches your system's 4.5V to 5.5V requirement. Confirm the industrial temperature grade (-40°C to +85°C) aligns with your environmental constraints before finalizing procurement.

Selection Notes

Select this component when immediate read/write speeds of SRAM are required alongside non-volatile data retention. It serves as a direct replacement for traditional EEPROMs where write endurance and speed are critical. Ensure the I2C bus speed supports 1 MHz operation and that the 8-TSSOP package fits the PCB layout constraints.

Part Context

This part belongs to the Microchip 47C04/47C16 EERAM family, which integrates SRAM and EEPROM on a single die. These devices eliminate the slow write cycles typical of standard EEPROMs while maintaining data integrity during power loss. The 47C04 variant specifically offers 4 kbit capacity, making it suitable for small-scale data buffering and parameter storage applications.

Replacement Considerations

Publicly confirmed substitute part numbers for 47C04T-I/SN were not identified in the provided source material.