47L04 Overview
The Microchip Technology Inc. 47L04/47C04/47L16/47C16 (47XXX) is a 4/16 Kbit SRAM with EEPROM backup. The device is organized as 512 x 8 bits or 2,048 x 8 bits of memory and utilizes the I2C serial interface.
47L04 Key Features
- 4 Kbit/16 Kbit SRAM with EEPROM Backup
- 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
- Software mands for initiating Store and Recall operations
- Store time 8 ms maximum (47X04) or 25 ms maximum (47X16)
- Nonvolatile External Event Detect Flag
- High Reliability
- Infinite read and write cycles to SRAM
- More than one million store cycles to EEPROM