47C16-E/ST

Overview

The MCP47C16-E/ST is a 16-Kbit I2C Serial EERAM device manufactured by Microchip Technology. It combines SRAM with EEPROM backup functionality, offering a memory organization of 2K x 8 bits. The component operates with an I2C interface supporting clock frequencies up to 1 MHz. It is housed in an 8-pin TSSOP package and is designed for industrial temperature ranges.

Feature Summary

• Integrates volatile SRAM with non-volatile EEPROM backup for data retention during power loss
• Supports standard I2C serial communication protocol
• Provides fast write cycle times for efficient data storage operations

Applications

• Data logging systems requiring persistent storage
• Industrial control applications needing reliable parameter retention
• Consumer electronics with configuration memory requirements

Procurement Notes

Verify the exact part number suffix against official Microchip documentation to ensure correct package type and temperature grade. Confirm that the I2C address matches system design requirements. Check for RoHS compliance status if required by specific manufacturing standards. Ensure compatibility with the host controller's I2C voltage levels and pull-up resistor configurations before procurement.

Selection Notes

Select this component when both high-speed random access (SRAM) and non-volatile data retention (EEPROM) are required in a single package. It is suitable for applications where frequent data updates occur but must survive power cycles. Consider the 8-pin TSSOP footprint for space-constrained PCB designs. Evaluate the 1 MHz I2C speed against system bus timing constraints.

Part Context

This device belongs to the Microchip 47L04/47C04/47L16/47C16 family of I2C Serial EERAMs. These components are recommended for automotive design due to their reliability features. The family offers various memory densities, with the 47C16 providing 16 Kbits of combined storage. They serve as alternatives to separate SRAM and EEPROM solutions.

Replacement Considerations

Compatible substitutes within the same family include the 47C04-E/ST (4-Kbit) and 47L16-E/ST (16-Kbit). Verify pinout compatibility and electrical specifications such as operating voltage and temperature range before substitution. Ensure the replacement part supports the required I2C clock frequency.