STMPE812ABJR STMicroelectronics, STMPE812ABJR Datasheet - Page 44

• 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

Electrical specification
13.2
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AC electrical characteristics
Table 20.
Table 21.
Table 22.
ON resistance X+, Y+
ON resistance X-, Y-
ON resistance X+, Y+
ON resistance X-, Y-
ON resistance X+, Y+
ON resistance X-, Y-
ON resistance X+, Y+
ON resistance X-, Y-
ON resistance X+, Y+
ON resistance X-, Y-
Symbol
T
ClkI2C
RESET
Max
F
T
Integral linearity error
Full-scale input span
Absolute input range
osc
IN
Input capacitance
No missing codes
Leakage current
Throughput rate
Parameter
Offset error
Parameter
Resolution
Gain error
I
Minimum RESET pulse
width
Minimum INPUT width
required for GPIO state
transition
Internal RC OSC
frequency
2
AC electrical characteristics (-40 °C to 85 °C)
ADC specification
Switch drivers specification
C maximum SCLK
Parameter
V
5 mA setting
V
10 mA setting
V
20 mA setting
V
30 mA setting
V
5 mA setting
Test conditions
DD
DD
DD
DD
DD
Test conditions
Doc ID 18225 Rev 4
= 1.65 V,
= 1.65 V,
= 1.65 V,
= 1.65 V,
= 3.6 V,
V
V
Test conditions
CC
CC
= 1.65 - 3.6 V
= 1.65 - 3.6 V
Min
–
–
–
–
–
Min
-0.2
11
0
–
–
–
–
–
–
–
Typ
±14
180
0.1
Typ
25
12
±4
±5
34
24
17
15
31
–
–
–
Min
900
–
4
4
V
Max
CC
V
±18
±5
2
–
–
–
–
–
–
CC
1200
+0.
Typ
–
–
–
Max
–
–
–
–
–
Ksamples/s
1500
Max
400
STMPE812A
–
–
Unit
LSB
LSB
LSB
Bits
Bits
pF
µA
V
V
Unit
Ω
Ω
Ω
Ω
Ω
Unit
KHz
KHz
µS
µS