STMPE812ABJR STMicroelectronics, STMPE812ABJR Datasheet - Page 40

• 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

Touchscreen controller
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The STMPE812A samples a new data set immediately after every complete read.
If the host does not complete a data-set read, no further samples are taken.
For each data point (4 bytes), number of I2C transaction required is:
A: read Data Valid Status (1 byte), read data (4 bytes)
B: write ACQ (1 byte), read ACQ (1 byte), read data (4 bytes)
C: read (4 bytes)
Doc ID 18225 Rev 4
STMPE812A