Datasheet
4D SYSTEMS uLCD-35DT Display Module
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uLCD-35DT Display Module
I = Input, O = Output, P = Power
I = Input, O = Output, P = Power, A = Analog Input
P1 Pinout (NOT POPULATED)
Pin
Symbol
I/O
Description
1
+5V
P
Main Voltage Supply +ve input pin. Reverse polarity protected. Range is 4.0V to
5.5V, nominal 5.0V.
2
+3.3V_OUT
P
3.3V Output, limited to approximately 100mA, for external use.
3
GND
P
Supply Ground
4
PA12
I/O
General Purpose I/O. This pin is 5.0V tolerant.
5
PA13
I/O
General Purpose I/O. This pin is 5.0V tolerant.
6
PA14
I
General Purpose Input Only. This pin is 5.0V tolerant.
7
PA15
I
General Purpose Input Only. This pin is 5.0V tolerant.
8
AUDIO
I/O
PWM Audio output from Module, or Audio Input to Amplifier, determined by J1
9
AUDENB
I/O
External Amplifier enable pin, to control an external amplifier from the module,
or control the on board Amplifier from an external source.
10
RESET
I
Master Reset, Active Low (GND), See P1 Pin 5 Description
11
RX0
I
Asynchronous serial port 0 receive pin. COM0
12
TX0
O
Asynchronous serial port 0 transmit pin. COM0
P2 Pinout (NOT POPULATED)
Pin
Symbol
I/O
Description
1
PA0
I/O/A
General Purpose I/O pin with Analog Capability. This pin is 5.0V tolerant when
used as a Digital, with a range of 0-3.3V when used as an Analog Input
2
PA1
I/O/A
General Purpose I/O pin with Analog Capability. This pin is 5.0V tolerant when
used as a Digital, with a range of 0-3.3V when used as an Analog Input
3
PA2
I/O/A
General Purpose I/O pin with Analog Capability. This pin is 5.0V tolerant when
used as a Digital, with a range of 0-3.3V when used as an Analog Input
4
PA3
I/O/A
General Purpose I/O pin with Analog Capability. This pin is 5.0V tolerant when
used as a Digital, with a range of 0-3.3V when used as an Analog Input
5
PA4
I/O
General Purpose I/O. This pin is 5.0V tolerant.
6
PA5
I/O
General Purpose I/O. This pin is 5.0V tolerant.
7
PA6
I/O
General Purpose I/O. This pin is 5.0V tolerant.
8
PA7
I/O
General Purpose I/O. This pin is 5.0V tolerant.
9
PA8
I/O
General Purpose I/O. This pin is 5.0V tolerant.
10
PA9
I/O
General Purpose I/O. This pin is 5.0V tolerant.
11
PA10
I/O
General Purpose I/O. This pin is 5.0V tolerant.
12
PA11
I/O
General Purpose I/O. This pin is 5.0V tolerant.










