STMPE16M31PXQTR STMicroelectronics, STMPE16M31PXQTR Datasheet - Page 18

• 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

Register map and function description
18/75
Table 8.
Address
0x5C
0x5D
0x7C
0x5A
0x5B
0x5E
0x5F
0x53
0x54
0x55
0x56
0x57
0x58
0x59
0x70
0x71
0x72
0x76
0x77
0x78
0x90
0x92
0x96
0x97
0x98
Register map (continued)
PWM_5_RAMP_RATE
PWM_6_RAMP_RATE
PWM_7_RAMP_RATE
RATIO_ENG_REPT_C
KEY_FILT_GROUP-1
KEY_PROX_CTRL
CAP_SEN_CTRL
Register name
PWM_5_CTRL
PWM_6_CTRL
PWM_7_CTRL
PWM_4_TRIG
PWM_5_TRIG
PWM_6_TRIG
PWM_7_TRIG
PWM_5_SET
PWM_6_SET
PWM_7_SET
DATA_TYPE
PROX_CFG
CAL_MOD
MAF_SET
CAL_INT
CH_SEL
PEVR
PTVR
TRL
Doc ID 17058 Rev 2
Reset value
0x00000000
0x00000000
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
I
2
C
PWM4 trigger
PWM5 setup
PWM5 control
PWM5 ramp rate
PWM5 trigger
PWM6 setup
PWM6 control
PWM6 ramp rate
PWM6 trigger
PWM7 setup
PWM7 control
PWM7 ramp rate
PWM7 trigger
Capacitive sensor control
Ratio engine report control
(only available in final silicon)
Selects active capacitive
channels
10 ms – 64 s calibration interval
Selects calibration model
Control of median averaging
filter
Selects type of data available in
channel data ports.
0x01: TVR
0x02: EVR
0x03: Channel delay
0x04: Impedance (13-bit)
0x05:Calibrated Impedance (13-
bit)
0x06:Locked impedance (13-bit)
General key filter control
Define channels included in key
filter group 1
proximity configuration register
TVR used for proximity sensing
EVR used for proximity sensing
and forced proximity calibration
Register function
STMPE16M31PX