STMPE812ABJR STMicroelectronics, STMPE812ABJR Datasheet - Page 25

• 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
9
ADC controller
A 12-bit ADC is integrated in the STMPE812A. The ADC could be used as generic analog-
digital converter, or a touchscreen controller capable of controlling a 4-wire resistive
touchscreen.
The ADC works ONLY with internal reference (equal to V
Table 9.
0x21-0x22
Address
0x20
ADC controller registers
Register name
ADC control
ADC data
Doc ID 18225 Rev 4
Bit
16
8
Type
R/W
R
0x0000
Reset
0x33
CC
), always 12 bit.
ADC data access (P1)
Description
ADC control
ADC controller
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