STMPE24M31QTR STMicroelectronics, STMPE24M31QTR Datasheet - Page 61

• 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

STMPE16M31, STMPE24M31
RATIO_ENG_SET
Address:
Type:
Reset:
Description:
RESERVED
RW
7
0
DATAMODE
[7] RESERVED
[6] DATAMODE
[5] RE2FilterEn
[4] RE1FilterEn
[3] CFG2
[2] CFG1
[1] EN2
[0] EN1
RW
6
0
Setting of data presentation
‘1’ to display 1 byte position data in the first byte of RE1_POS and RE2_POS continuously. The
old data will be overwritten. In this mode, when touch is detected in the slider, interrupt is issued
and host can read the data in its own rate. Only position data is available (8 bits), movement
and time-stamp data are not available.
‘0’ to enable data-buffering. Position, movement and time-stamp are available.
Ratio engine 2 noise filter
‘1’ to enable the filter
‘0’ to disable the filter
Ratio engine 1 noise filter
‘1’ to enable the filter
‘0’ to disable the filter
Ratio engine 2 setting
‘1’ for rotator/wheel configuration
‘0’ for linear/slider configuration
Ratio engine 1 setting
‘1’ for rotator/wheel configuration
‘0’ for linear/slider configuration
‘1’ to enable ratio engine 2
‘0’ to enable ratio engine 1
‘1’ to enable ratio engine 2
‘0’ to enable ratio engine 1
0x80
RW
0x00
Operation setup of ratio engine.
RE2FilterEn
RW
5
0
RE1FilterEn
Doc ID 16174 Rev 3
RW
4
0
CFG2
RW
3
0
Ratio engine setup register
CFG2
RW
2
0
Touch sensor controller
EN2
RW
1
0
EN1
RW
0
0
61/85