DS1972 Datasheet PDF | Maxim Integrated

Maxim Integrated DS1972

The DS1972 is a 1024-bit, 1-Wire EEPROM organized as four memory pages of 256 bits each in a rugged iButton package. The DS1972 communicates over the single-conductor 1-Wire bus. The communication follows the standard Dallas Semiconductor 1-Wire protocol.

Part No.	DS1972
Datasheet	DS1972 Download
Manufacturer	Maxim Integrated
Description	1024-Bit EEPROM iButton
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DESCRIPTION

Data is written to an 8byte scratchpad, verified, and then copied to the EEPROM memory. As a special feature, the four memory pages can individually be write protected or put in EPROM-emulation mode, where bits can only be changed from a 1 to a 0 state. Each device has its own unalterable and unique 64-bit ROM registration number that is factory lasered into the device. The registration number is used to address the device in a multidrop 1-Wire net environment. ® SPECIAL

FEATURES

§ § § § § § 1024 Bits of EEPROM Memory Partitioned into Four Pages of 256 Bits Individual Memory Pages can be Permanently Write Protected or Put in EPROM-Emulation Mode ("Write to 0") Switchpoint Hysteresis and Filtering to Optimize Performance in the Presence of Noise IEC 1000-4-2 Level 4 ESD Protection (8kV Contact, 15kV Air, typical) Reads and Writes Over a Wide Voltage Range of 2.8V to 5.25V from -40°C to +85°C Communicates to Host with a Single Digital Signal at 15.4kbps or 125kbps Using 1-Wir...