STMPE821QTR STMicroelectronics, STMPE821QTR Datasheet - Page 33

• 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
STRENGTH
Address:
Type:
Reset:
Description:
7
[7:0] STRENGTH:
6
0x60 - 0x67
R
0x00
The number of times where a sense capacitance exceeds the calibrated reference
impedance
Read-only field
Counts the number of times a sensed impedance exceeds calibrated reference impedance
over and integration time. Maximum strength equals Integration Time [7:0]
5
Doc ID 14478 Rev 5
4
STRENGTH
3
Capacitive touch module registers
2
1
Strength
0
33/50