Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.NET

X  

Preview PDF HTML

HTS221 Datasheet(PDF) 26 Page - STMicroelectronics

Part # HTS221
Description  Capacitive digital sensor for relative humidity and temperature
PDF  33 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

HTS221 Datasheet(HTML) 26 Page - STMicroelectronics

Back Button HTS221 Datasheet HTML 22Page - STMicroelectronics HTS221 Datasheet HTML 23Page - STMicroelectronics HTS221 Datasheet HTML 24Page - STMicroelectronics HTS221 Datasheet HTML 25Page - STMicroelectronics HTS221 Datasheet HTML 26Page - STMicroelectronics HTS221 Datasheet HTML 27Page - STMicroelectronics HTS221 Datasheet HTML 28Page - STMicroelectronics HTS221 Datasheet HTML 29Page - STMicroelectronics HTS221 Datasheet HTML 30Page - STMicroelectronics Next Button
Zoom Inzoom in Zoom Outzoom out
 26 / 33 page
background image
Humidity and temperature data conversion
HTS221
26/33
DocID026333 Rev 4
8
Humidity and temperature data conversion
The Registers in 30h..3Fh address range contain calibration coefficients. Every sensor
module has individual coefficients. Before the first calculation of temperature and humidity,
the master reads out the calibration coefficients.
(u8) is the unsigned 8-bit quantity, and (s16) the signed 16-bit quantity using 2’s
complement format. In the following example, the two steps required to calculate
temperature and relative humidity output values are described. The T0 and T1 calibration
temperature values are actually composed of 10 bits (unsigned), where the 2 MSB are in
reg 35h, and the 8 LSB are in regs 32h and 33h, respectively. T0 and T1 are the actual
calibration temperature values multiplied by 8.
Table 19. Decoding the coefficients in the sensor Flash
Addr
Variable
Format
b7
b6
b5
b4
b3
b2
b1
b0
Output registers
28
H_OUT
(s16)
H7
H6
H5
H4
H3
H2
H1
H0
29
H15
H14
H13
H12
H11
H10
H9
H8
2A
T_OUT
(s16)
T7
T6
T5
T4
T3
T2
T1
T0
2B
T15
T14
T13
T12
T11
T10
T9
T8
Calibration registers
30
H0_rH_x2
(u8)
H0.7
H0.6
H0.5
H0.4
H0.3
H0.2
H0.1
H0.1
31
H1_rH_x2
(u8)
H1.7
H1.6
H1.5
H1.4
H1.3
H1.2
H1.1
H1.0
32
T0_degC_x8
(u8)
T0.7
T0.6
T0.5
T0.4
T0.3
T0.2
T0.1
T0.0
33
T1_degC_x8
(u8)
T1.7
T1.6
T1.5
T1.4
T1.3
T1.2
T1.1
T1.0
34
Reserved
(u16)
35
T1/T0 msb
(u2),(u2)
Reserved
T1.9
T1.8
T0.9
T0.8
36
H0_T0_OUT
(s16)
76
5
4
3
2
1
0
37
15
14
13
12
11
10
9
8
38
Reserved
39
3A
H1_T0_OUT
(s16)
76
5
4
3
2
1
0
3B
15
14
13
12
11
10
9
8
3C
T0_OUT
(s16)
76
5
4
3
2
1
0
3D
15
14
13
12
11
10
9
8
3E
T1_OUT
(s16)
76
5
4
3
2
1
0
3F
15
14
13
12
11
10
9
8



Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33


Datasheet Download

Go To PDF Page


Link URL



Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Contact us   |   Privacy Policy   |   Link to Datasheet    |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com