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參數資料
| 型號： | MAX31723MUA+ |
| 廠商： | Maxim Integrated |
| 文件頁數： | 11/15頁 |
| 文件大小： | 761K |
| 描述： | IC THERMOMETER/STAT SPI-3W 8UMAX |
| 產品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 50 |
| 功能： | 溫度計，恒溫計 |
| 傳感器類型： | 內部 |
| 感應溫度： | -55°C ~ 125°C |
| 精確度： | ±2°C（最小值） |
| 拓撲： | 比較器，寄存器庫 |
| 輸出類型： | 3 線/SPI? 串行 |
| 輸出警報： | 是 |
| 輸出風扇： | 無 |
| 電源電壓： | 1.7 V ~ 3.7 V |
| 工作溫度： | -55°C ~ 125°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-TSSOP，8-MSOP（0.118"，3.00mm 寬） |
| 供應商設備封裝： | 8-uMAX |
| 包裝： | 托盤 |
| 其它名稱： | 90-31723+U00 |
Digital Thermometers and Thermostats
with SPI/3-Wire Interface
11
as depicted in the AC Electrical Characteristics. The user
has read/write access to the R1 and R0 bits, which are
nonvolatile. See Table 4.
Serial Interface
The devices offer the flexibility to choose between two
serial interface modes. They can communicate with the
SPI interface or with a 3-wire interface. The interface
method used is determined by the SERMODE pin. When
SERMODE is connected to V
DD
, SPI communication
is selected. When SERMODE is connected to ground,
3-wire communication is selected.
Serial Peripheral Interface (SPI)
The SPI is a synchronous bus for address and data
transfer. The SPI mode of serial communication is select-
ed by connecting SERMODE to V
DD
. Four pins are used
for the SPI: SDO (serial-data out), SDI (serial-data in), CE
(chip enable), and SCLK (serial clock). The devices are
the slave device in an SPI application, with the microcon-
troller being the master. SDI and SDO are the serial-data
input and output pins for the devices, respectively. The
CE input is used to initiate and terminate a data transfer.
SCLK is used to synchronize data movement between
the master (microcontroller) and the slave (IC) devices.
The serial clock (SCLK), which is generated by the
microcontroller, is active only when CE is high and dur-
ing address and data transfer to any device on the SPI
bus. The inactive clock polarity is programmable in some
microcontrollers. The devices offer an important feature
in that the level of the inactive clock is determined by
sampling SCLK when CE becomes active. Therefore,
either SCLK polarity can be accommodated. Input data
(SDI) is latched on the internal strobe edge and output
data (SDO) is shifted out on the shift edge (see Table 5
and Figure 7). There is one clock for each bit transferred.
Address and data bits are transferred in groups of eight,
MSB first.
Table 3. Configuration/Status Register Bit Descriptions (continued)
Table 5. Function Table
Table 4. Thermometer Resolution
Configuration
Note: CPHA bit polarity must be set to 1.
*CPOL is the clock polarity bit that is set in the control register of the microcontroller.
**SDO remains at high impedance until 8 bits of data are ready to be shifted out during a read.
BIT 2
R1: Thermostat resolution bit 1. Factory power-up state = 0 and is stored in nonvolatile memory. Sets the con-
version resolution (see Table 4).
BIT 1
R0: Thermostat resolution bit 0. Factory power-up state = 0 and is stored in nonvolatile memory. Sets the con-
version resolution (see Table 4).
BIT 0
SD: Factory power-up state = 1. The user has read/write access to the SD bit, which is stored in nonvolatile
memory.
0 = The devices continuously perform temperature conversions and store the last completed result in the tem-
perature register.
1 = The conversion in progress is completed and stored, and then the devices revert to a low-power shutdown
mode. The communication port remains active.
R1
R0
THERMOMETER
RESOLUTION (BITS)
MAX CONVERSION
TIME (ms)
0
0
9
25
0
1
10
50
1
0
11
100
1
1
12
200
MODE
CE
SCLK
SDI
SDO
Disable reset
Low
Input disabled
Input disabled
High impedance
Write
High
CPOL = 1*, SCLK rising
Data bit latch
High impedance
CPOL = 0, SCLK falling
Read
High
CPOL = 1, SCLK falling
X
Next data bit shift**
CPOL = 0, SCLK rising
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| MAX31723MUA+ | 功能描述:板上安裝溫度傳感器 SPI/3-Wire Digital Temp Sensor RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor |
| MAX31723MUA+T | 功能描述:板上安裝溫度傳感器 SPI/3-Wire Digital Temp Sensor RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor |
| MAX31723PMB1# | 功能描述:溫度傳感器開發工具 MAX31723 Peripheral Module RoHS:否 制造商:Texas Instruments 產品類型:Temperature Sensors and Control ICs 工具用于評估:MSP430G2553 接口類型:USB 工作電源電壓: 工作電源電流: |
| MAX31725MTA+ | 功能描述:板上安裝溫度傳感器 .5+- DEG C I2C RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor |
| MAX31725MTA+T | 功能描述:板上安裝溫度傳感器 .5+- DEG C I2C RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor |
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