47C16-E/SN

Overview

The Microchip Technology 47C16-E/SN is a 16-kbit Static Random Access Memory (SRAM) integrated circuit featuring non-volatile EEPROM backup capabilities. It operates within a supply voltage range of 4.5V to 5.5V and utilizes an I2C serial interface with a maximum clock frequency of 1 MHz. The device offers a memory organization of 2K x 8 bits and supports word or page write cycles with a typical duration of 1 ms. Designed for industrial reliability, it functions across an extended temperature range from -40°C to +125°C and is housed in an 8-pin Small Outline Integrated Circuit (SOIC) package.

Feature Summary

• Integrates SRAM with automatic EEPROM backup to retain data during power loss
• Supports standard I2C two-wire serial communication protocol
• Operates reliably across the full industrial temperature range

Applications

• Data logging systems requiring persistent storage
• Industrial control units needing configuration retention
• Automotive electronics designs recommended by manufacturer

Procurement Notes

Verify the specific suffix 'E' indicates the extended temperature grade (-40°C to +125°C) compared to the commercial 'I' variant. Confirm the SOIC-8 package dimensions match your PCB footprint requirements. Ensure the I2C address settings align with your system bus topology to prevent conflicts.

Selection Notes

Select this component when non-volatile data retention is critical without external battery support. The I2C interface simplifies wiring compared to parallel memories. Consider the 1 MHz speed limit for high-throughput applications; slower interfaces may require alternative solutions if bandwidth constraints are exceeded.

Part Context

This part belongs to the 47L04/47C04/47L16/47C16 family of I2C Serial EERAM devices. These components combine volatile SRAM speed with non-volatile EEPROM density. The family is specifically recommended for automotive design applications due to its robustness and data integrity features under varying environmental conditions.

Replacement Considerations

The 47C16-I/SN serves as a commercial-grade alternative with identical electrical specifications but a limited operating temperature range of 0°C to +70°C. Verify thermal requirements before substitution. No other direct pin-compatible substitutes are documented in public sources.