STMPE16M31PXQTR STMicroelectronics, STMPE16M31PXQTR Datasheet - Page 65

• Manufacturer Part Number: STMPE16M31PXQTR
• Description: IC CTLR TOUCHKEY 16CHAN 32-QFN
• Manufacturer: STMicroelectronics
• Series: S-Touch™r
• Type: Capacitive, PWM, Ratio Enginer

Specifications of STMPE16M31PXQTR

• Featured Product: STMPE16M31PX
• Number Of Inputs/keys: 16 Key, Slider
• Data Interface: I²C
• Data Rate/sampling Rate (sps, Bps): 100k, 400k
• Voltage Reference: External
• Voltage - Supply: 2.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 32-VFQFN Exposed Pad
• Supply Voltage: 1.65 V to 1.95 V
• Number Of Channels: 16
• Dimensions: 4 mm L x 4 mm W x 0.8 mm H
• Temperature Range: - 40 C to + 85 C
• Termination Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Supply: -
• Resolution (bits): -
• Touch Panel Interface: -
• Other names: 497-10738-2

STMPE16M31PX
PROX_CFG
Address:
Type:
Reset:
Description:
R/W
7
0
DITHERING
[7:6] DITHERING FACTOR
[4:2] Proximity calibration interval:
[1:0] Access mode:
[5] Reserved
R/W
6
0
00 - 4x
01 -8x
10 -16x
11-32x
The higher the dithering factor, the more sensitive the proximity sensing is. However, the speed
will be slower.
000-1
001-2
010-4
011-8
100-16
Others: reserved
Controls the number of dithered impedance sampling between successive calibrations. Shorter
calibration interval allows it to adapts quickly to changes in environmental factors, but reduces
the sensitivity to slowly approaching hand.
00-dithered impedance
01- calibrated dithered impedance
others: reserved
0x96
RW
0x00
Proximity configuration register.
RESERVED
R/W
5
0
Doc ID 17058 Rev 2
R/W
PROXIMITY CALIBRATION INTERVAL
4
0
R/W
Touchkey and proximity sensing controller
3
0
Proximity configuration register
R/W
2
0
R/W
1
0
ACCESS MODE
R/W
0
0
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