STMPE24M31QTR STMicroelectronics, STMPE24M31QTR Datasheet - Page 57

• 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
MAF_SET
Address:
Type:
Reset:
Description:
DATA_TYPE
Address:
Type:
Reset:
Description:
RW
RW
7
0
7
0
[2:1] MAF_Mode
[7:0] MODE
[0] MAF_EN
RW
RW
6
0
6
0
‘00’ to collect 10 samples, remove 2 samples
‘01’ to collect 18 samples, remove 2 samples
‘10’ to collect 20 samples, remove 4 samples
‘1’ Enable the MAF
‘0’ Disable the MAF
0x01: TVR (9-bit)
0x02: EVR (9-bit)
0x03: Channel delay (6-bit)
0x04: Impedance (13-bit)
0x05: Calibrated impedance (13-bit)
0x06: Locked impedance (13-bit)
0x78
RW
0x00
This register chooses the median averaging filter mode.
0x7C
RW
0x00
This register define the type of data to be accessed at capacitive channel data
register.
Reserved
RW
RW
5
0
5
0
Doc ID 16174 Rev 3
RW
RW
4
0
4
0
MODE
RW
RW
3
0
3
0
Median averaging filter register
Data type definition register
RW
RW
2
0
2
0
MAF_Mode
Touch sensor controller
RW
RW
1
0
1
0
MAF_EN
RW
RW
0
0
0
0
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