STMPE24M31QTR STMicroelectronics, STMPE24M31QTR Datasheet - Page 28

• Manufacturer Part Number: STMPE24M31QTR
• Description: IC SENSOR S-TOUCH 24CH 40QFN
• Manufacturer: STMicroelectronics
• Series: S-Touch™r
• Type: Capacitiver

Specifications of STMPE24M31QTR

• Number Of Inputs/keys: 24 Key
• Data Interface: I²C
• Data Rate/sampling Rate (sps, Bps): 100k, 400k
• Voltage Reference: External
• Voltage - Supply: 1.65 V ~ 1.95 V
• Current - Supply: 900µA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 40-VQFN
• Output Type: Logic
• Interface: I²C
• Input Type: Logic
• Supply Voltage: 1.8 V
• Number Of Channels: 24
• Dimensions: 5 mm L x 5 mm W x 0.85 mm H
• Temperature Range: - 40 C to + 85 C
• Termination Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-10380-2

System controller
INT_EN
Address:
Type:
Reset:
Description:
28/85
GPIO
RW
7
0
[7] GPIO: Activity in GPIO
[6] PWM: Any channel of PWM has completed the programmed sequence
[5] Device wake up from SLEEP or HIBERNATE mode
[4] ENV: Possible drastic/abnormal environmental changes that requires attention from system
[3] EOC: End of calibration
[2] TOUCH: Touchkey event
[1] RE2: Ratio engine 2 event
[0] RE1: Ratio engine 1 event
PWM
RW
6
0
Write ‘1’ to enable interrupt signal from GPIO
Write ‘0’ to disable interrupt signal from GPIO
Write ‘1’ to enable interrupt signal from PWM
Write ‘0’ to disable interrupt signal from PWM
Write ‘1’ to enable interrupt signal from wake-up event
Write ‘0’ to to disable interrupt signal from wake-up event
software. This event includes ‘calibration stuck’ and ‘tuning out of range’
Write ‘1’ to enable interrupt signal from calibration/tuning event
Write ‘0’ to disable interrupt signal from calibration/tuning event
Write ‘1’ to enable interrupt signal from end of calibration event
Write ‘0’ to disable interrupt signal from end of calibration event
System should access touch detection register when this interrupt is received.
Touch interrupt source needs to be enabled to activate key filter data.
Write ‘1’ to enable interrupt signal from touch event
Write ‘0’ to disable interrupt signal from touch event
This bit needs to be enabled before accessing ratio engine data buffer
Write ‘1’ to enable interrupt signal from ratio engine 2
Write ‘0’ to disable interrupt signal from ratio engine 2
This bit needs to be enabled before accessing ratio engine data buffer
Write ‘1’ to enable interrupt signal from ratio engine 1
Write ‘0’ to disable interrupt signal from ratio engine 1
0x09
R/W
0x00
Controls interrupt source enable.
WAKEUP
RW
5
0
Doc ID 16174 Rev 3
ENV
RW
4
0
EOC
RW
3
0
TOUCH
RW
2
0
Interrupt enable register
STMPE16M31, STMPE24M31
RE2
RW
1
0
RE1
RW
0
0