47L16-I/SN Description

The Microchip Technology Inc. 47L16-I/SN is a 4/16 Kbit SRAM with EEPROM backup. The 47L16-I/SN is organized as 512 x 8 bits or 2,048 x 8 bits of memory and utilizes the I2C serial interface. The 47L16-I/SN provides infinite read and write cycles to the SRAM while EEPROM cells provide high-endurance nonvolatile

storage of data. With an external capacitor, SRAM data is automatically transferred to the EEPROM upon loss of power. Data can also be transferred manually by using either the Hardware Store pin or software control. Upon power-up, the EEPROM data is automatically recalled to the SRAM. Recall can also be initiated through software control.

47L16-I/SN Features

Internally organized as 512 x 8 bits (47X04) or 2,048 x 8 bits (47X16)

Automatic Store to EEPROM array upon power-down (using optional external capacitor)

Automatic Recall to SRAM array upon power-up

Hardware Store pin for manual Store operations

Nonvolatile External Event Detect Flag

8-Lead PDIP, SOIC, and TSSOP Packages

47L16-I/SN Applications

Automotive 

Advanced driver assistance systems (ADAS) 

Communications equipment 

Wireless infrastructure 

Enterprise systems 

Enterprise projectors