The Microchip AT93C56B-XHM-T is a 2 Kb Microwire (3-wire) SerialEEPROM organized as either 256 x 8 or 128 x 16, selectable in hardware usingthe ORG pin. The device is optimized for use in consumer, industrial, and automotiveapplications where reliable and dependable nonvolatile memory storage isessential. The EEPROM is available in a variety of space-saving packagingoptions.
The Atmel 2 Kbit three-wire serial EEPROM is organized as either 256 words x 8 bits, or 128 words x16 bits, with sequential read operation. The EEPROM is optimized for industrial and commercial applications where low-power and low-voltage operations are essential. The EEPROM is available in a variety of 8-lead, space-saving packaging options operating at 1.7V to 5.5V. It is accessed via a three-wire serial interface consisting of a data input, output, and a shift clock. Upon receiving a read instruction at the data input, the address is decoded and the data is clocked out serially on the data output. The write cycle is completely self-timed and no separate erase cycle is required before write. The write cycle is only enabled when the part is in the erase/write enable state. If the EEPROM's chip select state is "high" after the initiation of a write cycle, the data output will have a ready/busy status.
Feature
- User selectable 256 x 8 or 128 x 16 Organization (2 Kbit)
- Industry Standard Microwire Serial I/O
- Up to 2 MHz clock compatibility
- Self-Timed Erase and Write Cycles (5 ms max.)
- Low Power Consumption
- Read current 0.5 mA (Typ), 2.0 mA (Max)
- Write current 0.5 mA (Typ),2.0 mA (Max)
- Standby current 10.0 uA (Typ), 15.0 uA (Max)
- Software Write-Protection
- More than 1 million erase/write cycles
- Data retention > 100 years
- Extended Temperature Ranges Available (Grade 1 as defined in AEC-Q100)
- Grade 1 Temperature Range: -40°C to 125°C
- Qualified for Automotive Applications
- Factory Programming Available
- Available in 8-pin SOIC (150 mil), 8-pin TSSOP, 8-pad UDFN, 8-pad XDFN, and 8-ball VFBGA packages
