STMPE812ABJR STMicroelectronics, STMPE812ABJR Datasheet - Page 38

• 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
Note:
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Table 13.
Data Valid Status Byte Structure
Data Valid Status Read in data port is useful together with Pen Down mode whereby
accessing the ISR is not needed so as to achieve the best I
minimal I
Reading the Data valid Status byte also clears the ISR.
[7:2] RESERVED
OpMode
[1] DATA VALID
[0] RESERVED
7
0
1
0
1
1: Touch data available/valid
0: Touch data not available/not valid
Bit reset upon read
TSCDetectConfig2
2
C transactions).
Touchscreen controller data register
6
StatusRead
0
0
1
1
5
RESERVED
bytes to read
Number of
TSCData
Doc ID 18225 Rev 4
from
4
3
5
4
4
[11:4] of X
[11:4] of X
Data Valid
Data Valid
Status
Status
Byte0
3
[11:8] of Y
[11:8] of Y
[11:4] of X
[11:4] of X
[3:0] of X
[3:0] of X
Byte1
2
2
C bandwidth efficiency (i.e.
[11:8] of Y
[11:8] of Y
[7:0] of Y
[7:0] of Y
[3:0] of X
[3:0] of X
Byte2
DATA VALID
1
[7:0] of Z
[7:0] of Y
[7:0] of Y
Byte3
-
STMPE812A
RESERVED
[7:0] of Z
0
Byte4
-