STMPE24M31QTR STMicroelectronics, STMPE24M31QTR Datasheet - Page 2

IC SENSOR S-TOUCH 24CH 40QFN

STMPE24M31QTR

Manufacturer Part Number
STMPE24M31QTR
Description
IC SENSOR S-TOUCH 24CH 40QFN
Manufacturer
STMicroelectronics
Series
S-Touch™r
Type
Capacitiver
Datasheets

Specifications of STMPE24M31QTR

Number Of Inputs/keys
24 Key
Data Interface
I²C
Data Rate/sampling Rate (sps, Bps)
100k, 400k
Voltage Reference
External
Voltage - Supply
1.65 V ~ 1.95 V
Current - Supply
900µA
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
40-VQFN
Output Type
Logic
Interface
I²C
Input Type
Logic
Supply Voltage
1.8 V
Number Of Channels
24
Dimensions
5 mm L x 5 mm W x 0.85 mm H
Temperature Range
- 40 C to + 85 C
Termination Style
SMD/SMT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
497-10380-2

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
STMPE24M31QTR
Manufacturer:
STM
Quantity:
8 061
Part Number:
STMPE24M31QTR
Manufacturer:
ST
0
Contents
Contents
1
2
3
4
5
6
7
8
9
10
11
12
13
2/83
Pin assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.1
1.2
I
2.1
Read operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Write operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.1
General call address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Register map and function description . . . . . . . . . . . . . . . . . . . . . . . . . 17
System controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
7.1
Interrupt service routine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
GPIO controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
PWM array controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
PWM controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
11.1
Basic PWM programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
12.1
Touch sensor controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
13.1
13.2
2
C interface module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Power scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Power states . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Device operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Write operations for one or more bytes . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Interrupt system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
PWM function register map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Interrupt on basic PWM controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Sampling rate calculation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Sensor resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Doc ID 16174 Rev 2
STMPE16M31, STMPE24M31

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