STMPE24M31QTR STMicroelectronics, STMPE24M31QTR Datasheet - Page 62

• 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
RATIO_ENG_STA
Address:
Type:
Reset:
Description:
RATIO_ENG_DATA-n (engineering samples)
Address:
Type:
Reset:
Description:
1
2
62/83
st
nd
byte [7:0]
byte [15:8]
RW
RW
RW
7
0
7
0
7
0
[7:2] RESERVED
[1] MT2
[0] MT1
RW
RW
RW
6
0
Read ‘1’ when more than 1 touch is detected in Ratio Engine 2
Read ‘1’ when more than 1 touch is detected in Ratio Engine 1
6
0
6
0
0x83
R
0x00
This register report the event of multi touch in the ratio engine.
0x84-0x86, 0x87-0x89
R
0x0000
Position of the touch as calculation output of ratio engine1 and 2. Data is organized
as a “packet“ of 3 bytes. The data is backed by 4-level of buffer.
RW
RW
RW
5
0
5
0
5
0
RESERVED
MOV[5:0]
Doc ID 16174 Rev 2
RW
RW
RW
4
0
4
0
4
0
POS[7:0]
RW
RW
RW
3
0
3
0
3
0
Ratio engine -1, -2 data registers
Ratio engine status register
RW
RW
RW
2
0
2
0
2
0
STMPE16M31, STMPE24M31
MT2
RW
RW
RW
1
0
1
0
1
0
POS[9:8]
MT1
RW
RW
RW
0
0
0
0
0
0