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DS2431
1024-Bit, 1-Wire EEPROM
General Description
The DS2431 is a 1024-bit, 1-Wire ? EEPROM chip orga-
nized 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 communi-
cates over the single-conductor 1-Wire bus. The commu-
nication 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.
Applications
Accessory/PCB Identification
Medical Sensor Calibration Data Storage
Analog Sensor Calibration Including IEEE
P1451.4 Smart Sensors
Ink and Toner Print Cartridge Identification
After-Market Management of Consumables
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
from 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-Wire
Protocol
? Also Available as Automotive Version Meeting
AEC-Q100 Grade 1 Qualification Requirements
(DS2431-A1; Refer to the IC Data Sheet for
Details)
Ordering Information
PART
TEMP RANGE
PIN-PACKAGE
V CC
Typical Operating Circuit
DS2431+
DS2431+T&R
DS2431P+
DS2431P+T&R
DS2431G+U
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
3 TO-92
3 TO-92
6 TSOC
6 TSOC
2 SFN (6mm x 6mm)
μ C
R PUP
IO
DS2431
GND
DS2431G+T&R
DS2431GA+U
DS2431GA+T&R
DS2431Q+T&R
DS2431X-S+
DS2431X+
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
2 SFN (6mm x 6mm)
(2.5k pcs)
2 SFN (3.5mm x 6.5mm)
2 SFN (3.5mm x 6.5mm)
(2.5k pcs)
6 TDFN-EP* (2.5k pcs)
3x3 UCSPR (2.5k pcs)
3x3 UCSPR (10k pcs)
Note: The leads of TO-92 packages on tape and reel are
formed to approximately 100-mil (2.54mm) spacing. For
details, refer to the package outline drawing.
Pin Configurations appear at end of data sheet.
+Denotes a lead(Pb)-free/RoHS-compliant package.
T&R = Tape and reel.
*EP = Exposed pad.
1-Wire is a registered trademark of Maxim Integrated Products, Inc.
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
19-4675; Rev 13; 3/12
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相关代理商/技术参数
DS2431G-W0V+2T 制造商:Maxim Integrated Products 功能描述:1024-BIT 1-WIRE EEPROM - Tape and Reel
DS2431G-W0V+3T 制造商:Maxim Integrated Products 功能描述:1024-BIT 1-WIRE EEPROM - Tape and Reel
DS2431G-W0V-2T 制造商:Maxim Integrated Products 功能描述:
DS2431G-W0V-3T 制造商:Maxim Integrated Products 功能描述:
DS2431P 功能描述:电可擦除可编程只读存储器 RoHS:否 制造商:Atmel 存储容量:2 Kbit 组织:256 B x 8 数据保留:100 yr 最大时钟频率:1000 KHz 最大工作电流:6 uA 工作电源电压:1.7 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8
DS2431P R 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:1024-Bit, 1-Wire EEPROM
DS2431P T 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:1024-Bit, 1-Wire EEPROM
DS2431P/R 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:1024-Bit 1-Wire EEPROM