Datasheet

4D SYSTEMS uLCD-70DT Display Module
© 2014 4D SYSTEMS Page 6 of 23 www.4dsystems.com.au
uLCD-70DT Display Module
I = Input, O = Output, P = Power
NOTE: Caution must be used if utilising this header, only 1 SD card can be installed at any given time
H1 Pinout
Pin
Symbol
I/O
Description
1
PA3
I/O
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
SPK-
O
Speaker Output -ve if a different speaker is used externally. Disconnected on
board speaker if utilised.
3
PA2
I/O
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
SPK+
O
Speaker Output +ve if a different speaker is used externally. Disconnected on
board speaker if utilised.
5
PA1
I/O
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
6
PA11
O
General Purpose I/O. This pin is 5.0V tolerant.
7
PA0
I/O
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
8
PA10
I/O
General Purpose I/O. This pin is 5.0V tolerant.
9
N/C
-
No Connect – Leave this pin unconnected
10
PA14
I
General Purpose Input Only. This pin is 5.0V tolerant.
11
GND
P
Supply Ground
12
PA15
I
General Purpose Input Only. This pin is 5.0V tolerant.
13
GND
P
Supply Ground
14
+5V IN
P
Main Voltage Supply +ve input pin. Reverse polarity protected. Range is 4.0V to
5.5V, nominal 5.0V. 500mA minimum Required.
15
N/C
-
No Connect – Leave this pin unconnected
16
AUDIO
I/O
Audio Output or Input direct to Amplifier, TTL Line level
17
N/C
-
No Connect – Leave this pin unconnected
18
AUDENB
O
External Amplifier enable pin, to control an external amplifier from the module
19
PA9
I/O
General Purpose I/O. This pin is 5.0V tolerant.
20
RESET
I
Master Reset, Active Low (GND), See H2 Pin 9 Description
21
PA8
I/O
General Purpose I/O. This pin is 5.0V tolerant.
22
3.3V_OUT
O
3.3V Output, limited to approximately 20mA, for external use.
23
PA7
I/O
General Purpose I/O. This pin is 5.0V tolerant.
24
RX0
I
Asynchronous serial port 0 receive pin. COM0
25
PA6
I/O
General Purpose I/O. This pin is 5.0V tolerant.
26
TX0
O
Asynchronous serial port 0 transmit pin. COM0
27
PA5
I/O
General Purpose I/O. This pin is 5.0V tolerant.
28
PA13
I/O
(RESERVED FOR RESISTIVE TOUCH)
29
PA4
I/O
General Purpose I/O. This pin is 5.0V tolerant.
30
PA12
I/O
(RESERVED FOR RESISTIVE TOUCH)
H3 Pinout (EXT. SD Header) – NOT POPULATED NORMALLY
Pin
Symbol
I/O
Description
1
SD_SDI
I
SD Card SDI Signal for SD Card Only (shared with uSD/SD Sockets)
2
3.3V
-
3.3V Supply for SD Card Only
3
SD_SDO
O
SD Card SDO Signal for SD Card Only (shared with uSD/SD Sockets)
4
SD_SCK
O
SD Card SCK Signal for SD Card Only (shared with uSD/SD Sockets)
5
GND
P
Supply Ground
6
SD_CS
O
SD Card Chip Select Signal for SD Card Only (shared with uSD/SD Sockets)