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General Description
The DS24B33 is a 4096-bit, 1-Wire ? EEPROM orga-
nized as 16 memory pages of 256 bits each. Data is
written to a 32-byte scratchpad, verified, and then
copied to the EEPROM memory. The DS24B33 commu-
nicates over a single-conductor 1-Wire bus. The com-
munication follows the standard 1-Wire protocol. Each
device has its own unalterable and unique 64-bit regis-
tration number that is factory programmed into the chip.
The registration number is used to address the device
in a multidrop 1-Wire net environment. The DS24B33 is
software compatible to the DS2433.
Applications
Storage of Calibration Constants
Board Identification
Storage of Product Revision Status
Typical Operating Circuit
DS24B33
1-Wire 4Kb EEPROM
Features
o 4096 Bits of Nonvolatile EEPROM Partitioned Into
Sixteen 256-Bit Pages
o Read and Write Access is Highly Backward-
Compatible to the DS2433
o 256-Bit Scratchpad with Strict Read/Write
Protocols Ensures Integrity of Data Transfer
o Unique, Factory-Programmed, 64-Bit Registration
Number Ensures Error-Free Device Selection and
Absolute Part Identity
o Switchpoint Hysteresis to Optimize Performance
in the Presence of Noise
o Communicates to Host at 15.4kbps or 125kbps
Using 1-Wire Protocol
o Low-Cost Through-Hole and SMD Packages
o Operating Range: +2.8V to +5.25V, -40°C to +85°C
o IEC 1000-4-2 Level 4 ESD Protection (±8kV
Contact, ±15kV Air, Typical) for IO Pin
V CC
R PUP
Ordering Information
IO
PART
TEMP RANGE
PIN-PACKAGE
μ C
DS24B33
Functional Diagrams
GND
DS24B33+
DS24B33+T&R
DS24B33G+T&R
DS24B33Q+T&R
DS24B33S+
-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
TO-92
TO-92
2 SFN (2.5k pcs)
6 TDFN-EP* (2.5k pcs)
8 SO (208 mils)
DS24B33S+T&R -40 ° C to +85 ° C 8 SO (208 mils)
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.
+Denotes a lead(Pb)-free/RoHS-compliant package.
T&R = Tape and reel.
*EP = Exposed pad.
Pin Configurations appear at end of data sheet.
Functional Diagrams continued at end of data sheet.
UCSP trademark Maxim of Maxim Products,
1-Wire is a a registered of trademark Integrated Integrated Inc. 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.
19-5759; Rev 3; 5/12
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相关代理商/技术参数
DS24B33G+U 功能描述:电可擦除可编程只读存储器 1-WIRE 4KB 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
DS24B33Q+T&R 制造商:Maxim Integrated Products 功能描述:1-WIRE 4KB EEPROM - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC EEPROM 4KBIT 6TDFN 制造商:Maxim Integrated Products 功能描述:EEPROM 1-Wire 4kbit EEPROM
DS24B33Q+T&R 功能描述:电可擦除可编程只读存储器 1-Wire 4kbit 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
DS24B33Q+U 功能描述:电可擦除可编程只读存储器 1-WIRE 4KB 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
DS24B33S 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:1-Wire 4Kb EEPROM
DS24B33S R 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:1-Wire 4Kb EEPROM
DS24B33S T 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:1-Wire 4Kb EEPROM
DS24B33S TR 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:1-Wire 4Kb EEPROM