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4Kb 5V I2C Serial EERAM - SRAM with EEPROM Back Up
Overview
- Battery Backup:0
- Density:4 Kbit
- Endurance:Unlimited
- Max. Clock Freq.:1 MHz
- Operating Voltage Max (V):5.5
- Operating Voltage Min (V):4.5
- Page Size (Bytes):16
- Write Protect Scheme:Software Configurable
- Write Protected:1
- Data Retention:200
- Read Access Speed:
- Automatic Store to EEPROM upon power-down (using optional external capacitor)
- Automatic Recall to SRAM Array upon power-up
- Hardware Store Pin for manual Store Operations
- Software commands for initiating Store and Recall Operations
- Store Time 40ms (max)
- 4.5V -5.5V Operation
- High-Speed I2C Interface (Up to 1MHz)
- Non-Volatile External Event Detect Flag
- Infinite Read and Write Cycles to SRAM Array
- More than 1 Million Store Cycles to EEPROM
- Data Retention: >200 Years
- ESD Protection: >2,000V
- Reliable Data Storage during Power Loss
- 1mA active current (typ)
- 40uA Standby Current (max)
- Software Write Protection from 1/64 of SRAM array to whole array
- Zero Cycle delay reads and writes
- Cascadable up to four devices
- Industrial(I): -40oC to +85oC
- Automotive (E): -40oC to +125oC
- 8-Lead PDIP, SOIC and TSSOP Packages
The Microchip Technology Inc 47C04 EERAM is a 4Kbit SRAM with EEPROM Backup. The I2C
EERAM Memory is a Low-Cost NVSRAM that Eliminates the Need for an External
Battery to Retain Data. The device is organized as 512 x 8 bits and utilizes the I2C serial interface. The 47C04 provides infinite read and write cycles to the SRAM while the EEPROM cells provide high endurance non-volatile storage of Data. With an external capacitor, SRAM data is automatically transferred to the EEPROM upon power-loss. Data can also be transferred manually by using either the hardware store pin or by software control. Upon power-up, the EEPROM data is automatically recalled to the SRAM. Recall can also be initiated through software control. The unlimited endurance makes the EERAM useful in applications that need to constantly monitor or record data.
The 47C04 EERAM has a 4.5-5.5V operating voltage range and is available in 8-lead SOIC, TSSOP and PDIP packages. The EERAM works from -40C to 125C and is automotive grade qualified.
The 47C04 EERAM has a 4.5-5.5V operating voltage range and is available in 8-lead SOIC, TSSOP and PDIP packages. The EERAM works from -40C to 125C and is automotive grade qualified.
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Tools And Software
Development Environment
Demo & Evaluation Boards
Programmers
| Tools |
|---|
 MPLAB® X Integrated Development Environment (IDE) is an expandable, highly configurable software program that incorporates powerful tools to help you discover, configure, develop, debug and qualify embedded designs for most of Microchip’s microcontrollers, microprocessors and digital signal controllers.
|
| Tools |
|---|
| The EERAM I²C PICtail™ Kit demonstrates the features and abilities of the 47C04 and 47L16 I²C EERAM devices in standard development platforms.
|
| Tools |
|---|
| The MPLAB. PM3 Universal Device Programmer operates with a PC or as a stand-alone unit, and programs Microchips entire line of PICmicro.devices as well as the latest dsPIC30F DSC devices.
|
["developmentenvironment","Development Environment"] ,
["emulators","Emulator and Debuggers"] ,
["demoevaluationboards","Demo & Evaluation Boards"] ,
["programmerrelations","Programmers"] ,
["thirdpartytools","3rd Party Tools"] ,
["legacy","Legacy"] ,
["softwarelibraries","Library and Firmware"]
referencedesigns,Reference Designs:
codeexamples,Code Examples:
ibisboarddesignfiles,Board Design Files:
