STMPE321QTR STMicroelectronics, STMPE321QTR Datasheet - Page 13

• Manufacturer Part Number: STMPE321QTR
• Description: IC CTLR TOUCH KEY 3CH 12-QFN
• Manufacturer: STMicroelectronics
• Series: S-Touch™r
• Type: Capacitiver

Specifications of STMPE321QTR

• Number Of Inputs/keys: 3 Key
• Resolution (bits): 8 b
• Data Interface: I²C
• Data Rate/sampling Rate (sps, Bps): 100k
• Voltage - Supply: 1.65 V ~ 1.95 V
• Mounting Type: Surface Mount
• Package / Case: 12-QFN
• Voltage Supply Source: Single Supply
• Resolution: 7 bit to 10 bit
• Interface Type: I2C
• Supply Voltage (max): 1.95 V
• Supply Voltage (min): 1.65 V
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Operating Temperature: -
• Sampling Rate (per Second): -
• Lead Free Status / Rohs Status: Details
• Other names: 497-8985-2

STMPE321
Table 5.
0x50-0x52
Address
0x60 -
0x70 -
0x80 -
0x62
0x72
0x82
0x92
STRENGTH_THRES
[0-2]
STRENGTH [0-2]
CAL_IMPEDANCE [0-2]
IMPEDANCE [0-2]
INT_PENDING
Register summary map table (continued)
Register name
Bit
8
8
8
8
8
Doc ID 15791 Rev 3
Type
R/W
R/W
R
R
R
Reset value
0x01
0x00
0x00
0x00
0x00
Register map and function description
Setting of strength threshold for each
channel
Strength
Calibrated impedance
Impedance
Status of GINT interrupt sources
Function
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