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DS2436 Datasheet(PDF) 11 Page - Dallas Semiconductor |
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DS2436 Datasheet(HTML) 11 Page - Dallas Semiconductor |
11 / 29 page DS2436 11 of 29 TEMPERATURE REGISTERS (60h-61h) The DS2436 can measure temperature without external components. The resulting temperature measurement is placed in a two-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 26 25 24 23 22 21 20 2-1 2-2 2-3 2-4 2-5 0 0 0 Unit =1°C The MSB of the Temperature Register contains the integer portion of the temperature valve. 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 |
Similar Part No. - DS2436_07 |
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Similar Description - DS2436_07 |
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