参数资料
型号: DS1921G-F5#
厂商: Maxim Integrated
文件页数: 35/42页
文件大小: 0K
描述: IBUTTON THERMOCHRON F5
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
RoHS指令信息: IButton RoHS Compliance Plan
标准包装: 8
系列: iButton®
存储容量: 512B
存储器类型: NVSRAM(非易失 SRAM)
产品目录页面: 1431 (CN2011-ZH PDF)
DS1921G
Thermochron iButton Device
Command-Specific 1-Wire Communication Protocol—Legend
(continued)
SYMBOL
<data>
CRC-16
FF loop
AA loop
Busy
00 loop
DESCRIPTION
Transfer of an undetermined amount of data
Transfer of an inverted CRC-16
Indefinite loop where the master reads FFh bytes
Indefinite loop where the master reads AAh bytes
Interval during Copy Scratchpad where the DS1921G does not respond. Any bits read during this time
are logic 1.
Indefinite loop where the master reads 00h bytes
Command-Specific 1-Wire Communication Protocol—Color Codes
Master-to-Slave
Slave-to-Master
1-Wire Communication Examples
Write Scratchpad, Reaching the End of the Scratchpad
RST PD Select WS
TA
<data to EOS> CRC-16
FF loop
Write Scratchpad, Not Reaching the End of the Scratchpad
RST PD Select WS
Read Scratchpad
TA <data> RST PD
RST PD Select RS
TA-E/S
<data to EOS> CRC-16
FF loop
Copy Scratchpad (Success)
RST PD Select CPS
TA-E/S
Busy
AA loop
Copy Scratchpad (Invalid TA-E/S)
RST PD Select CPS
TA-E/S
FF loop
Read Memory (Success)
RST PD Select RM
TA <data to EOM>
00 loop
Read Memory (Invalid Address)
RST PD Select RM
TA
00 loop
Reading reserved pages 20 through 63 or 68 through 127 or pages 192 and higher (beyond data-log memory)
results in 00h bytes.
Maxim Integrated
35
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相关代理商/技术参数
参数描述
DS1921G-F5# 功能描述:iButton Thermochron 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
DS1921G-F5#W 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
DS1921G-F5/A0C 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
DS1921G-F5/A12 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
DS1921G-F5/A12-W 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