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DS2431P-A1-

Description
EEPROM 1024-Bit 1-Wire EEPROM
Categorystorage   
File Size235KB,21 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
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DS2431P-A1- Overview

EEPROM 1024-Bit 1-Wire EEPROM

DS2431P-A1- Parametric

Parameter NameAttribute value
Product CategoryEEPROM
ManufacturerMaxim
RoHSDetails
Package / CaseTSOC-6
Memory Size1 kbit
Organization256 x 4
Interface TypeSerial, 1-Wire, SDQ
Data Retention10 Year
Supply Current - Max0.8 mA
Operating Supply Voltage5 V
Minimum Operating Temperature- 40 C
Maximum Operating Temperature+ 125 C
PackagingTube
HeightN/A
LengthN/A
Operating Supply Current0.8 mA
Programming Voltage5 V
Factory Pack Quantity120
Supply Voltage - Max5.25 V
Supply Voltage - Min4.5 V
WidthN/A
Unit Weight0.001799 oz
Rev 1; 3/08
1024-Bit, 1-Wire EEPROM
for Automotive Applications
General Description
The DS2431-A1 is an AEC-Q100 Grade 1 qualified ver-
sion of the DS2431. The logical behavior of both ver-
sions 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, veri-
fied, 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-conduc-
tor 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 fac-
tory lasered into the chip. The registration number is
used to address the device in a multidrop 1-Wire net
environment.
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, Typ)
Reads and Writes Over a 4.5V to 5.25V Voltage
Range from -40°C to +125°C
Communicates to Host with a Single Digital
Signal at 15.4kbps Using 1-Wire Protocol
Meets AEC-Q100 Grade 1 Qualification
Requirements
Also Available as Standard Version for Industrial
Temperature Range (DS2431)
DS2431-A1
Applications
Automotive Sensor Identification and Calibration
Data Storage
Automotive Cable Assembly Identification
Accessory/PCB Identification
Ordering Information
PART
DS2431P-A1+
DS2431P-A1+T
TEMP RANGE
-40°C to +125°C
-40°C to +125°C
PIN-PACKAGE
6 TSOC
6 TSOC
Commands and modes are capitalized for clarity.
+Denotes
a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
Typical Operating Circuit
V
CC
R
PUP
I/O
μC
GND
I/O
1
2
3
Pin Configuration
TOP VIEW
+
6 N.C.
DS2431-A1
5
4
N.C.
N.C.
DS2431-A1
N.C.
GND
TSOC
1-Wire is a registered trademark of Maxim Integrated Products, Inc.
________________________________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
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