STMPE812ABJR STMicroelectronics, STMPE812ABJR Datasheet - Page 15

• Manufacturer Part Number: STMPE812ABJR
• Description: Touch Screen Converters & Controllers Touchscreen cntrlr S-Touch
• Manufacturer: STMicroelectronics
• Type: Resistive Touch Controllersr

Specifications of STMPE812ABJR

• Rohs: yes
• Input Type: 1 TSC
• Data Rate: 400 kbps
• Resolution: 12 bit
• Interface Type: 4-wire, I2C
• Supply Voltage: 1.65 V to 3.6 V
• Supply Current: 100 uA
• Operating Temperature: - 40 C to + 85 C
• Package / Case: CSP-12
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Supply Voltage - Max: 3.6 V
• Supply Voltage - Min: 1.65 V

STMPE812A
5
Power modes
The STMPE812A operates in a 2 states: active and hibernate.
Active:
Hibernate:
-PWM/ADC must be “off” (clock disable bit SET)
-Any GPIO input, with interrupt enabled, causes a transition to “active” state, if an input
change is detected.
-Pen down even causes transition to “active” state if the touchscreen controller is enabled.
Table 6.
1. At Vcc=1.8V, TCS running at 100sets of X/Y per second, MAV disabled.
–
–
–
Current consumption
Interface (I
Power mode
GPIO hotkey
Touchscreen
Whenever PEN-DOWN is detected, the device remains in active mode
Whenever PWM is active, the device remains in active mode
Whenever ADC is active, the device remains in ACTIVE MODE
Power mode
2
C)
Doc ID 18225 Rev 4
280 µA (max)
Active
Yes
Yes
Yes
(1)
1.0 µA (max.)
Hibernate
Yes
Yes
Yes
Power modes
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