STMPE24M31QTR STMicroelectronics, STMPE24M31QTR Datasheet - Page 69

• 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
Bit 23-16 (0x9C)
TOUCH_DET
Address:
Type:
Reset:
Description:
Bit 7-0 (0xB4)
Bit 15-8 (0xB5)
S23
S15
RW
RW
RW
S7
7
0
7
0
7
0
[S23:S16]
[S15:S6]
[23:0] S-X
S22
S14
RW
RW
RW
S6
6
0
6
0
6
0
Read ‘1’ if the corresponding sensor channel status is ‘touched’.
0xB4-B6
RW
0x000000
Represents the real time status of the touchkey input. This is a direct result of
comparison of sensed impedance with calibrated impedance (taking in account of
hysteresis). This data is not buffered.
S21
S13
RW
RW
RW
S5
5
0
5
0
5
0
Doc ID 16174 Rev 3
S20
S12
RW
RW
RW
S4
4
0
4
0
4
0
S18
S11
RW
RW
RW
S3
3
0
3
0
3
0
Touchkey detection register
S10
RW
RW
RW
S2
S2
2
0
2
0
2
0
Touchkey controller
S17
RW
RW
RW
S1
S9
1
0
1
0
1
0
S16
RW
RW
RW
S0
S8
0
0
0
0
0
0
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