参数资料
型号: DS2436Z
厂商: DALLAS SEMICONDUCTOR
元件分类: Memory IC:Other
英文描述: SPECIALTY MEMORY CIRCUIT, PDSO8
封装: 0.150 INCH, SOIC-8
文件页数: 3/29页
文件大小: 505K
代理商: DS2436Z
DS2436
11 of 29
TEMPERATURE REGISTERS (60h-61h)
The DS2436 can measure temperature without external components. The resulting temperature
measurement is placed in a 2-byte Temperature Register. This register is implemented in SRAM, and
therefore will hold data until the battery voltage falls below minimum VDD.
The temperature reading is provided in a 13-bit, two’s complement format, with 0.03125°C resolution.
Table 1 describes the exact relationship of output data to measured temperature. The data is transmitted
serially over the 1-Wire interface. The DS2436 can measure temperature over the range of -40°C to
+85°C in 0.03125°C increments. For Fahrenheit usage, a lookup table or conversion factor must be used.
Note that temperature is represented in the DS2436 in terms of a 0.03125°C LSB, yielding the following
13-bit format:
MSB
LSB
S
2
6
2
5
2
4
2
3
2
1
2
0
2
-1
2
-2
2
-3
2
-4
2
-5
0
Unit =1°C
The MSB of the Temperature Register contains the integer portion of temperature value.
TEMPERATURE/DATA RELATIONSHIPS Table 1
TEMPERATURE
DIGITAL OUTPUT (Binary)
DIGITAL OUTPUT (Hex)
+125
°C
01111101 00000000
7B00
+25.0625
°C
00011001 00010000
1910
+1/2
°C
00000000 10000000
0080
0
°C
00000000 00000000
0000
-1/2
°C
11111111 10000000
FF80
-25.0625
°C
11100110 11110000
E6F0
-55
°C
11001001 00000000
C900
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