JAJSOO4B September 2011 – June 2022 TMP100-Q1 , TMP101-Q1
PRODUCTION DATA
The digital output from each temperature measurement conversion is stored in the read-only Temperature Register. The Temperature Register of the TMP100-Q1 or TMP101-Q1 device is a 12-bit, read-only register that stores the output of the most recent conversion. Two bytes must be read to obtain data and are listed in Table 7-6 and Table 7-7. The first 12 bits are used to indicate temperature with all the remaining bits equal to zero. The data format for temperature is listed in Table 7-1. Negative numbers are represented in binary twos complement format. Following power-up or reset, the temperature register reads 0°C until the first conversion is complete.
The user can obtain 9, 10, 11, or 12 bits of resolution by addressing the Configuration Register and setting the resolution bits accordingly. For 9-, 10-, or 11-bit resolution, the most significant bits (MSBs) in the Temperature Register are used with the unused least significant bits (LSBs) set to zero.
TEMPERATURE (°C) | DIGITAL OUTPUT | |
---|---|---|
BINARY | HEX | |
128 | 0111 1111 1111 | 7FF |
127.9375 | 0111 1111 1111 | 7FF |
100 | 0110 0100 0000 | 640 |
80 | 0101 0000 0000 | 500 |
75 | 0100 1011 0000 | 4B0 |
50 | 0011 0010 0000 | 320 |
25 | 0001 1001 0000 | 190 |
0.25 | 0000 0000 0100 | 004 |
0 | 0000 0000 0000 | 000 |
–0.25 | 1111 1111 1100 | FFC |
–25 | 1110 0111 0000 | E70 |
–55 | 1100 1001 0000 | C90 |
–128 | 1000 0000 0000 | 800 |