STMPE812ABJR STMicroelectronics, STMPE812ABJR Datasheet - Page 21
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STMPE812ABJR
Manufacturer Part Number
STMPE812ABJR
Description
Touch Screen Converters & Controllers Touchscreen cntrlr S-Touch
Manufacturer
STMicroelectronics
Type
Resistive Touch Controllersr
Datasheet
1.STMPE812ABJR.pdf
(53 pages)
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
STMPE812ABJR
Manufacturer:
SMSC
Quantity:
154
Part Number:
STMPE812ABJR
Manufacturer:
ST
Quantity:
20 000
STMPE812A
8
Interrupt system
The STMPE812A uses a 2-tier interrupt structure. In normal mode, interrupts from the GPIO
and touchscreen controller assert the INT pin and are available in the Interrupt Status
register (ISR).
In pen down mode, the INT pin is asserted as long as pen down is detected.
Since the INT pin is a OR function of the pen down and all other enabled interrupts, in order
for INT pin to provide the exclusive indication of pen down (INT = Low) and pen up
(INT = High), as such benefit from minimal I
down mode when the GPIO/PWM/ADC functions are not required or the GPIO/PWM/ADC
interrupts are disabled.
Figure 7.
Interrupt system diagram
Doc ID 18225 Rev 4
2
C transactions, it is recommended to use pen
Interrupt system
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