Microchip Technology DV164139 Data Sheet
Low Pin Count USB Development Kit User’s Guide
DS41356B-page 6
© 2009 Microchip Technology Inc.
1.4
LOW PIN COUNT USB DEVELOPMENT BOARD CONSTRUCTION AND
LAYOUT
LAYOUT
The Low Pin Count USB Development Board and populated components are shown in
Figure 1-2.
Figure 1-2.
FIGURE 1-2:
LOW PIN COUNT USB DEVELOPMENT BOARD
1.
USB mini-B connector
2.
J9 regulated 5V connection header
3.
J14 connects either V
BUS
(Provided by USB) or J9 regulated 5V to PIC18F14K50
V
DD
supply
4.
PICkit™ 2 Debugger/Programmer connection header
5.
LEDs connected to PORTC (RC0, RC1, RC2, RC3)
6.
PICkit™ Serial Analyzer connection header
7.
MAX3232 RS-232 line driver/receiver
8.
RS-232 connector
9.
Area provided for user PID/VID information
10. Potentiometer
11. J12 connects/disconnects V
USB
on PIC18F14K50
12. Push button
13. 12 MHz crystal
14. PIC18F14K50 MCU
15. Prototyping area
16. PICtail™ daughter board expansion header
17. SSOP Expansion
1
4
3
10
2
5
6
7
8
9
11
12
13
14
15
16
17
Note:
J2-J5, J7, J8 are shunted on the bottom side of the board and thus the
functions default connected even though no jumper is installed. Cut the
jumper to disable the circuitry attached to each pin.
functions default connected even though no jumper is installed. Cut the
jumper to disable the circuitry attached to each pin.