Datasheet

4D SYSTEMS PICadillo-35T Display Module
© 2014 4D SYSTEMS Page 5 of 31 www.4dsystems.com.au
3. Pin Configuration and Summary
Header Pinout Summary – By Header and Pin Number
Continued overleaf…
I = Input, O = Output, P = Power, IP = Input Power, OP = Output Power
P2 Pinout (Centre Right)
Pin
Symbol
I/O
Description
1
N/C
Not Connected
2
IOREF
P
3.3V Reference pin, used for Shields which utilise an IOREF capable module.
3
RESET
I
Master Reset signal. Internally pulled up to 3.3V via a 10K resistor. An active
Low pulse greater than 2 micro-seconds will reset the module. If the module
needs to be reset externally, use open collector type circuits or at least a
200R resistor to GND. This pin is not driven low by any internal conditions.
4
+3.3V
OP
+3.3V OUTPUT pin, which is connected to the LP38692MP-3.3 regulator, and
capable of supplying up to 1Amp. Note this 3.3V supply is also used for the
Display and microSD card.
5
+5V
OP
+5V OUTPUT pin. This pin is designed to power external devices such as
Shields, not to power this module as it comes after the reverse polarity
protection. Output will be approximately 4.7V with a 5.0V input on VIN.
6
GND
P
Supply Ground
7
GND
P
Supply Ground
8
VIN
IP
Main Supply INPUT, 5V DC ONLY. This pin is designed to power the display
module, features reverse polarity protection. Input should not exceed 5.5V
DC, else damage to the Amplifier, Display and FTDI chip could result.
P3
P1
P2
P4
SPI
J2
J1
J3
J4
ICSP