47C04-E/SN

Overview

The Microchip Technology 47C04-E/SN is a static random-access memory (SRAM) integrated circuit featuring 4 kbit of storage capacity, organized as 512 words by 8 bits. It utilizes an I2C interface with a maximum clock frequency of 1 MHz and an access time of 400 ns. The device operates within a supply voltage range of 4.5 V to 5.5 V, drawing a maximum power supply current of 400 uA. Designed for industrial applications, it supports a minimum operating temperature of -40 C and a maximum of +125 C. The component is housed in an 8-pin PDIP package suitable for through-hole PCB mounting.

Feature Summary

• Combines SRAM speed with EEPROM non-volatility via EERAM technology
• Supports standard I2C serial communication protocol
• Maintains data retention without continuous power supply

Applications

• Industrial control systems requiring persistent data storage
• Consumer electronics needing configuration parameter retention
• Automotive instrumentation under extended temperature conditions

Procurement Notes

Verify the specific suffix 'E' indicates the extended industrial temperature grade (-40 C to +125 C) and 'SN' denotes the PDIP-8 through-hole package. Confirm RoHS compliance status directly from the manufacturer's latest documentation. Ensure the design accommodates the 4.5 V to 5.5 V supply voltage requirement rather than lower voltage logic levels.

Selection Notes

Select this component when non-volatile storage is required alongside fast random access speeds typical of SRAM. The I2C interface minimizes pin count compared to parallel memories. Consider the PDIP-8 package only if through-hole assembly is mandated; otherwise, evaluate surface-mount alternatives like the 47L04-I/ST for different board space constraints.

Part Context

This part belongs to the 47C04 series of Serial EERAMs manufactured by Microchip Technology. These devices integrate SRAM arrays with EEPROM backup circuits to provide instant data preservation upon power loss. The series is designed for applications demanding high endurance and rapid read/write cycles while maintaining data integrity over long periods.

Replacement Considerations

The 47L04-E/SN serves as a direct functional substitute within the same family, offering identical specifications but potentially differing in specific manufacturing revisions or minor electrical characteristics. Verify pin compatibility and voltage ranges before substitution.