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参数资料
| 型号： | DS1923-F5# |
| 厂商： | Maxim Integrated |
| 文件页数： | 20/55页 |
| 文件大小： | 0K |
| 描述： | IBUTTON TEMP/HUMIDITY LOGGER 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： | 5 |
| 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) |
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DS1923
iButton Hygrochron Temperature/Humidity
Logger with 8KB Data-Log Memory
Temperature Sensor Control Register Bitmap
ADDRESS
0210h
BIT 7
0
BIT 6
0
BIT 5
0
BIT 4
0
BIT 3
0
BIT 2
0
BIT 1
ETHA
BIT 0
ETLA
Note: During a mission, there is only read access to this register. Bits 2 to 7 have no function. They always read 0 and cannot be written to 1.
Humidity Sensor Control Register Bitmap
ADDRESS
0211h
BIT 7
1
BIT 6
1
BIT 5
1
BIT 4
1
BIT 3
1
BIT 2
1
BIT 1
EHHA
BIT 0
EHLA
Note: During a mission, there is only read access to this register. Bits 2 to 7 have no function. They always read 1 and cannot be written to 0.
RTC Control Register Bitmap
ADDRESS
0212h
BIT 7
0
BIT 6
0
BIT 5
0
BIT 4
0
BIT 3
0
BIT 2
0
BIT 1
EHSS
BIT 0
EOSC
Note: During a mission, there is only read access to this register. Bits 2 to 7 have no function. They always read 0 and cannot be written to 1.
Temperature Sensor Alarm
The DS1923 has two Temperature Alarm Threshold
registers (address 0208h, 0209h) to store values that
determine whether a critical temperature has been
reached. A temperature alarm is generated if the
device measures an alarming temperature and the
alarm signaling is enabled. The bits ETLA and ETHA
that enable the temperature alarm are located in the
Temperature Sensor Control register. The temperature
alarm flags TLF and THF are found in the Alarm Status
register at address 0214h.
Bit 1: Enable Temperature High Alarm (ETHA). This
bit controls whether, during a mission, the temperature
high alarm flag (THF) can be set, if a temperature con-
version results in a value equal to or higher than the
value in the Temperature High Alarm Threshold register.
If ETHA is 1, temperature high alarms are enabled. If
ETHA is 0, temperature high alarms are not generated.
Bit 0: Enable Temperature Low Alarm (ETLA). This
bit controls whether, during a mission, the temperature
low alarm flag (TLF) can be set, if a temperature con-
version results in a value equal to or lower than the
value in the Temperature Low Alarm Threshold register.
If ETLA is 1, temperature low alarms are enabled. If
ETLA is 0, temperature low alarms are not generated.
Humidity Alarm
The DS1923 has two Humidity Alarm Threshold regis-
ters (address 020Ah, 020Bh) to store values that deter-
mine whether humidity readings can generate an
alarm. Such an alarm is generated if the humidity data
read from the sensor qualifies for an alarm and the
20
alarm signaling is enabled. The bits EHLA and EHHA
that enable the humidity alarm are located in the
Humidity Sensor Control register. The corresponding
alarm flags HLF and HHF are found in the Alarm Status
register at address 0214h.
Bit 1: Enable Humidity High Alarm (EHHA). This bit
controls whether, during a mission, the humidity high
alarm flag (HHF) can be set, if a value from the humidi-
ty sensor is equal to or higher than the value in the
Humidity High Alarm Threshold register. If EHHA is 1,
humidity high alarms are enabled. If EHHA is 0, humidi-
ty high alarms are not generated.
Bit 0: Enable Humidity Low Alarm (EHLA). This bit
controls whether, during a mission, the humidity low
alarm flag (HLF) can be set, if a value from the humidity
sensor is equal to or lower than the value in the
Humidity Low Alarm Threshold register. If EHLA is 1,
humidity low alarms are enabled. If EHLA is 0, humidity
low alarms are not generated.
RTC Control
To minimize the power consumption of a DS1923, the
RTC oscillator should be turned off when the device is
not in use. The oscillator on/off bit is located in the RTC
Control register. This register also includes the EHSS
bit, which determines whether the sample rate is speci-
fied in seconds or minutes.
Bit 1: Enable High-Speed Sample (EHSS). This bit
controls the speed of the sample rate counter. When set
to logic 0, the sample rate is specified in minutes. When
set to logic 1, the sample rate is specified in seconds.
Maxim Integrated
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1923-F5# | 功能描述:iButton Hygrochron Temp/Hum Logger w/8KB DataLog 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 |
| DS1923-F5#W | 功能描述:iButton Hygrochron Temp/Hum Logger w/8KB DataLog 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 |
| DS1923-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 |
| DS19310 | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Color TV Owners Manual Manuel dinstructions du teleouleur Color TV Manual Del Propietario |
| DS193-K | 制造商:Miyama Electric 功能描述: |
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