The DS2431-A1 is an AEC-Q100 Grade 1 qualified version of the DS2431. The logical behavior of both versions is identical. The DS2431-A1 is a 1024-bit, 1-Wire® EEPROM chip organized as four memory pages of 256 bits each. Data is written to an 8-byte 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. The DS2431-A1 communicates over the single-conductor 1-Wire bus. The communication follows the standard 1-Wire protocol. Each device has its own unalterable and unique 64-bit ROM registration number that is factory lasered into the chip. The registration number is used to address the device in a multidrop 1-Wire net environment.
Key Features
Applications/Uses
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
* Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.
Devices:
1-8 of 8
DS2431-A1
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Status
Package:
TYPE PINS FOOTPRINT
DRAWING CODE/VAR *
Temp
RoHS/Lead-Free? Materials Analysis
DS2431P-A1+T
Active
TSOC;6 pin;17.8 mm²
Outline Drawing: 21-0382 (PDF)
Land Pattern: 90-0321 (PDF)
Use pkgcode/variation: D6+1*
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