V2.3
Page 13 of
15
February 2007
15
GROUND
16
SWVCC (Out) Power from EXTVCC (Pin 19) controlled via Pin 10 (POWERN#) of the FT245RL
and Q1 MOSFET power switch. R5 and C3 control the power-up rate to help limit inrush current.
17
GROUND
18
No connect
19
EXTVCC (In) Use for applying main power (4.4 to 5.25 volts) to the module. Connect to
PORTVCC if the module is to be powered by the USB port (typical configuration).
20
PORTVCC (Out) Power from USB port. Connect to EXTVCC if module is to be powered by the
USB port (typical configuration). 500mA is the maximum current available to the DLP-245PB-G
and target electronics if the USB device is configured for high power.
21
DB7 (I/O) Line 7 of the data bus between the 16F877A and the FT245RL USB-FIFO.
22
DB6 (I/O) Line 6 of the data bus between the 16F877A and the FT245RL USB-FIFO.
23
DB5 (I/O) Line 5 of the data bus between the 16F877A and the FT245RL USB-FIFO.
24
DB4 (I/O) Line 4 of the data bus between the 16F877A and the FT245RL USB-FIFO.
25
DB3 (I/O) Line 3 of the data bus between the 16F877A and the FT245RL USB-FIFO.
26
DB2 (I/O) Line 2 of the data bus between the 16F877A and the FT245RL USB-FIFO.
27
DB1 (I/O) Line 1 of the data bus between the 16F877A and the FT245RL USB-FIFO.
28
DB0 (I/O) Line 0 of the data bus between the 16F877A and the FT245RL USB-FIFO.
29
B5 (I/O) Port Pin B5 connected to the 16F877A microcontroller.
30
B4 (I/O) Port Pin B4 connected to the 16F877A microcontroller.
31
B0 (I/O) Port Pin B0 connected to the 16F877A microcontroller.
32
C0 (I/O) Port Pin C0 connected to the 16F877A microcontroller.
33
C1 (I/O) Port Pin C1 connected to the 16F877A microcontroller.
34
C2 (I/O) Port Pin C2 connected to the 16F877A microcontroller.
35
C3 (I/O) Port Pin C3 connected to the 16F877A microcontroller.
36
C4 (I/O) Port Pin C4 connected to the 16F877A microcontroller.
37
C5 (I/O) Port Pin C5 connected to the 16F877A microcontroller.
38
C6 (I/O) Port Pin C6 connected to the 16F877A microcontroller.
39
C7 (I/O) Port Pin C7 connected to the 16F877A microcontroller.
40
GROUND