STMPE24M31QTR STMicroelectronics, STMPE24M31QTR Datasheet - Page 56

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

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

Touch sensor controller
CAL_MOD
Address:
Type:
Reset:
Description:
56/85
RW
7
0
[7:3] CSInterval
[2:1] IModel
[0] Cal_EN
RW
6
0
Set the interval between samples in one calibration unit
Interval = CSInterval[4:0]*10mS
Set the calibration model
‘00’ for normal auto-calibration
‘10’ for auto-calibration with auto-tuning. In this mode channel reference delay is not accessible
from I2C. The system will perform auto-tuning if the impedance is moving out of dynamic range.
‘01’ is reserved
‘11’ is reserved
‘1’ to enable the auto-calibration
‘0’ to disable the auto-calibration
0x77
RW
0x00
This register configures the way calibration samples are collected, and the model of
calibration algorithm.
CSInterval
RW
5
0
Doc ID 16174 Rev 3
RW
4
0
RW
3
0
RW
2
0
Calibration mode register
STMPE16M31, STMPE24M31
Model
RW
1
0
Cal_EN
RW
0
0