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LC-19A1E-BK/WH
5 – 30
2.18. IC502 (VHiiSL83220-1Y)
2.18.1 Block Diagram
2.18.2 Pin Connections and short description
Pin No.
Pin Name
I/O
Pin Function
15
VCC
-
System power supply input (3.0V to 5.5V)
3
V+
-
Intemally generated positive transmitter supply (+5.5V).
7
V-
-
Internally generated negative transmitter supply (-5.5V).
14
GND
-
Ground connection.
2
C1+
-
External capacitor (voltage doubler) is connected to this lead.
4
C1-
-
External capacitor (voltage doubler) is connected to this lead.
5
C2+
-
External capacitor (voltage doubler) is connected to this lead.
6
C2-
-
External capacitor (voltage doubler) is connected to this lead.
11
TIN
I
TTL/CMOS compatible transmitter inputs.
13
TOUT
O
±15KV ESD Protected, RS-232 level (nominally ±5.5V) transmitter output.
8
RIN
I
±15KV ESD Protected, RS-232 compatible receiver inputs.
9
ROUT
O
TTL/CMOS level receiver output.
1
EN
O
Active low receiver enable control; doesn't disable ROUTB output.
16
SHDN
-
Active low input shuts down transmitters and on-board power supply, to place device in low power mode.
10
N.C.
-
No internal connection.
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