IT8687R View Datasheet(PDF) - ITE Tech. INC.
Part Name
Description
Manufacturer
IT8687R Datasheet PDF : 12 Pages
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13.
14.
Pin No.
22
23
24
27
28
29
32
33
34
35
36
37
38
39
40
41
44
45
46
48
25,31
42
6,19
13
30,43
26,47
IT8687R
Table 5-1. Signal Names (by pin numbers in alphabetical order) [cont’d]
Symbol
I/O
Description
SA13/LRTS2
IS
ISA I/O Address 13. The second function is Serial Port 2 RTS line driver
input.
SA12/LDTR2
IS
ISA I/O Address 12. The second function is Serial Port 2 DTR line driver
input.
RESET
IS System reset, active high
DTR2
O16H Serial port 2 DTR line driver output
RTS2
O16H Serial port 2 RTS line driver output
TX2
O16H Serial port 2 TX line driver output
RI2
ISH Serial port 2 RI line receiver input
CTS2
ISH Serial port 2 CTS line receiver input
DSR2
ISH Serial port 2 DSR line receiver input
RX2
ISH Serial port 2 RX line receiver input
RLSD2
ISH Serial port 2 RLSD line receiver input
RI1
ISH Serial port 1 RI line receiver input
CTS1
ISH Serial port 1 CTS line receiver input
DSR1
ISH Serial port 1 DSR line receiver input
RX1
ISH Serial port 1 RX line receiver input
RLSD1
ISH Serial port 1 RLSD line receiver input
DTR1
O16H Serial port 1 DTR line driver output
RTS1
O16H Serial port 1 RTS line driver output
TX1
O16H Serial port 1 TX line driver output
MODE
IS
Primary function is selected when this pin is low; secondary function is
selected when it is high.
NC
No Connection
GND
VCC
VSS
VDD
Ground
+5V power
-12V power
+12V power
4
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