The Atmel high speed, 256K bit SPI bus serial EEPROMs support SPI modes 0 and 3 operation. The EEPROM is organized as 32,768 words x 8 bits and optimized for industrial and commercial applications where low-power and low-voltage operations are essential.The EEPROM is available in a variety of space-saving packaging options at 1.8 (VCC = 1.8V to 5.5V). The three-wire serial interface consists of a data input, output, and a shift clock. All programming cycles are completely self-timed, and no separate erase cycle is required before write. Block write protection is program enabled and separate program enable and disable instructions are provided for additional data protection. Hardware data protection provided to protect against inadvertent write attempts to the status register. Any serial communication suspension can be accomplished without resetting the serial sequence.
Feature
- 32,768 x 8-bit (256 Kbit)
- Serial Peripheral Interface (SPI) Compatible
- Supports SPI modes 0 and 3
- Up to 20 MHz clock frequency
- Self-Timed Erase and Write Cycles (5 ms max.)
- Low Power Consumption
- Read current: 7 mA (Max) at 10 MHz
- Write current: 7mA (Max) at 10 MHz
- Standby current: 3μA (Max) at 1.8V, 5μA (Max) at 5 V
- Block Write Protection: Protect 1/4, 1/2 or Entire Array
- More than 1 million erase/write cycles
- Data retention 100 years
- Temperature Ranges Available
- Automotive Grade 1: -40°C to 125°C
- Automotive Grade 2: -40°C to 105°C
- Automotive Grade 3 / Industrial: -40°C to 85°C
- Automotive AECQ-100 Qualified1
- Factory Programming Available
- Available in standard packages including 8-lead SOIC, and advanced packages including 8-lead TSSOP, 8-lead 2x3 DFN, and 8-ball VFBGA
