STMPE821QTR STMicroelectronics, STMPE821QTR Datasheet - Page 28

• Manufacturer Part Number: STMPE821QTR
• Description: IC CTLR TOUCH KEY 8CH CAP 16-QFN
• Manufacturer: STMicroelectronics
• Type: Capacitiver

Specifications of STMPE821QTR

• Number Of Inputs/keys: 8 Key
• Data Interface: I²C
• Voltage - Supply: 1.65 V ~ 1.95 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-QFN
• Voltage Supply Source: Single Supply
• Resolution: 7 bit to 10 bit
• Interface Type: I2C
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 2.7 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Number Of Channels: 8
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Sampling Rate (per Second): -
• Resolution (bits): -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 497-8826-2

Capacitive touch module registers
CAL_INTERVAL
Address:
Type:
Reset:
Description:
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7
[7:0] CALIBRATION INTERVAL:
6
0x22
R/W
0x30
Calibration interval
Interval between calibration = Calibration Interval [7:0] * sensor clock period * 50
Range: 4 mS - 16 S
5
4
Calibration interval
CAL_INTERVAL
3
2
1
STMPE821
0