Description

The Atmel® AT24CS04 and AT24CS08 provides 4096/8192 bits of Serial Electrically Erasable and Programmable LButtonRead-only Memory (EEPROM) organized as 512/1024 words of eight bits each. The device is optimized for use in many industrial and commercial applications where low-power and low-voltage operation are essential. The AT24CS04/08 is available in space-saving, 8-lead JEDEC SOIC, 8-lead TSSOP, 8-pad UDFN and 5-lead SOT23 packages and is accessed via a 2-wire serial interface. In addition, both devices fully operate from 1.7V to 5.5V VCC.

Standard Features

• Low-voltage operation

 VCC = 1.7V to 5.5V

• Internally organized as 512 x 8 (4-Kbit) or 1024 x 8 (8-Kbit)

• I2C-compatible (2-wire) serial interface

• Schmitt Trigger, filtered inputs for noise suppression

• Bidirectional data transfer protocol

• 400kHz (1.7V) and 1MHz (2.5V, 2.7, 5.0V) compatibility

• Write Protect pin for hardware data protection

• 16-byte page write mode

   • Partial page writes allowed

• Self-timed write cycle (5ms max)

• High-reliability

   • Endurance: 1,000,000 write cycles

   • Data retention: 100 years

• Green package options (Pb/Halide-free/RoHS-compliant)

   • 8-lead JEDEC SOIC, 8-lead TSSOP, 8-pad UDFN, and 5-lead SOT23

• Die sale options: wafer form and tape and reel available

Enhanced Features in the CS Serial EEPROM Series

• All standard features supported

• 128-bit unique factory-programmed serial number

• Permanently locked, read-only value

• Stored in a separate memory area

• Guaranteed unique across entire CS Series of Serial EEPROMs