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DS1904
RTC iButton
SPECIAL FEATURES
Real-Time Clock/calendar in binary format
Uses the same binary time/date representation
as the DS1994 but with 1 second resolution
Clock accuracy is better than ± 2 minutes per
month at 25°C
Operating temperature range from -40°C to
+85°C
Over 10 years of operation
COMMON iButton FEATURES
Easily affixed with self-stick adhesive back-
ing, latched by its flange, or locked with a
ring pressed onto its rim
Presence detector acknowledges when reader
first applies voltage
F5 MicroCan
5.89
0.51
Unique, factory-lasered and tested 64-bit
registration number (8-bit family code +
48-bit serial number + 8-bit CRC tester)
assures absolute traceability because no two
parts are alike
Multidrop controller for MicroLAN
Digital identification and information by
?
40 ? 24
000000FBC52B
1-Wire ?
16.25
17.35
momentary contact
Chip-based data carrier compactly stores in-
IO
GND
formation
Data can be accessed while affixed to object
Economically communicates to host with a
single digital signal at 16.3 kbps
Standard 16 mm diameter and 1-Wire ?
protocol ensure compatibility with iButton ?
Device family
Button shape is self-aligning with cup-shaped
All dimensions are shown in millimeters
ORDERING INFORMATION
DS1904L-F5# F5 MicroCan
# Denotes an RoHS-compliant device that may include
lead(Pb) that is exempt under the RoHS requirements.
EXAMPLES OF ACCESSORIES
probes
Durable stainless steel case engraved with
registration number withstands harsh envi-
ronments
DS9096P
DS9101
DS9093RA
DS9093A
DS9092
Self-Stick Adhesive Pad
Multi-Purpose Clip
Mounting Lock Ring
Snap-In Fob
iButton Probe
iButton DESCRIPTION
The DS1904 RTC iButton is a rugged real-time clock module that can be accessed with minimal
hardware. Data is transferred serially via the 1-Wire protocol, which requires only a single data lead and a
1-Wire and iButton are registered trademarks of Maxim Integrated Products, Inc.
For pricing, delivery, and ordering information, please contact Maxim Direct at
1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com.
1 of 13
19-4864; Rev 6/13
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相关PDF资料
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相关代理商/技术参数
DS1904L-F5+ 功能描述:iButton RoHS:否 存储类型:SRAM 存储容量:512 B 组织: 工作电源电压:3 V to 5.25 V 接口类型:1-Wire 最大工作温度:+ 85 C 尺寸:17.35 mm x 5.89 mm 封装 / 箱体:F5 MicroCan 制造商:Maxim Integrated
DS1920 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:Temperature iButton
DS1920+F5 制造商:Maxim Integrated Products 功能描述:TEMP IBTN 2PIN F5 MICROCAN - Rail/Tube
DS1920-F3 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:Temperature iButton
DS1920-F5 功能描述:iButton RoHS:否 存储类型:SRAM 存储容量:512 B 组织: 工作电源电压:3 V to 5.25 V 接口类型:1-Wire 最大工作温度:+ 85 C 尺寸:17.35 mm x 5.89 mm 封装 / 箱体:F5 MicroCan 制造商:Maxim Integrated
DS1920-F5+ 功能描述:iButton Temperature iButton RoHS:否 存储类型:SRAM 存储容量:512 B 组织: 工作电源电压:3 V to 5.25 V 接口类型:1-Wire 最大工作温度:+ 85 C 尺寸:17.35 mm x 5.89 mm 封装 / 箱体:F5 MicroCan 制造商:Maxim Integrated
DS1921 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:High-Resolution Thermochron iButton
DS1921G 制造商:未知厂家 制造商全称:未知厂家 功能描述:Thermochron iButton