STMPE24M31QTR STMicroelectronics, STMPE24M31QTR Datasheet - Page 67

• 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
KEY_FILT_CFG
Address:
Type:
Reset:
Description:
KEY_FILT_GROUP-n
Address:
Type:
Reset:
Description:
Bit 7-0 (0x92 for KFGROUP-1, 0x96 for KFGROUP-2)
RW
RW
S7
7
0
7
0
[7:4] RESERVED
[3:2] Mode_KFU2
[1:0] Mode_KFU1
RW
RW
S6
6
0
6
0
Position of the touch in ratio engine sensors
‘00’ for no filter
‘01’ for 1 highest impedance change filter in group 2
‘10’ for 2 highest impedance change filter in group 2
‘11’ for 3 highest impedance change filter in group 2
‘00’ for no filter
‘01’ for 1 highest impedance change filter in group 1
‘10’ for 2 highest impedance change filter in group 1
‘11’ for 3 highest impedance change filter in group 1
0x90
RW
0x00
Setting of key filter unit.
0x92-0x94 (KeyFilterMask1), 0x96-0x98 (KeyFilterMask2)
R/W
0x000000
Configure the channels included in a group of key filter unit.
RESERVED
RW
RW
S5
5
0
5
0
Doc ID 16174 Rev 3
RW
RW
S4
4
0
4
0
RW
RW
S3
Key filter unit configuration register
3
0
3
0
KFGROUP-1, KFGROUP-2 registers
Mode_KFU2
RW
RW
S2
2
0
2
0
Touchkey controller
RW
RW
S1
1
0
1
0
Mode_KFU1
RW
RW
S0
0
0
0
0
67/85