STMPE821QTR STMicroelectronics, STMPE821QTR Datasheet - Page 29

• 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

STMPE821
CTRL
Address:
Type:
Reset:
Description:
7
[7:4] RESERVED
[3] F2A:
[2] HDC_U:
[1] HDC_C:
[0] HOLD:
6
RESERVED
0x25
R/W
0x00
Control
Write '1' to force device to remain in ACTIVE state at all times
Write '1' to perform unconditional host driven calibration.
Cleared to '0' when calibration is completed
Only applicable HOLD is '1'
Write '1' to perform conditional host driven calibration.
Calibration is performed if and only if no touch is detected.
Cleared to '0' when calibration is completed
Only applicable HOLD is '1'
'0' to enable ETC
'1' to disable ETC
5
4
Doc ID 14478 Rev 5
F2A
3
HDC_U
2
Capacitive touch module registers
HDC_C
1
HOLD
Control
0
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