upd4722 Renesas Electronics Corporation., upd4722 Datasheet - Page 2

• Manufacturer Part Number: upd4722
• Description: Rs-232 Line Driver/receiver At 3.3 V/5 V
• Manufacturer: Renesas Electronics Corporation.

BLOCK DIAGRAM/PIN CONFIGURATION (TOP VIEW)
2
Note
+3.3 V
+5 V
or
1. V
2. Capacitors C
3. If V
4. The pull-up resistors at driver input are active resistors.
recommended to insert the capacitor that is 0.1 F to 1 F between V
DD
CHA
and V
C
is kept low level (in 5 V mode), capacitor C
1
+
SS
are output pins stepped up internally. These pins should not be loaded directly.
C
C
1
3
5
+
+
to C
+10 V
R
R
R
R
5
D
D
D
D
OUT1
OUT2
OUT3
OUT4
with a breakdown voltage of 20 V or higher are recommended. And it is
IN1
IN2
IN3
IN4
10
11
12
13
14
15
1
2
3
4
5
6
7
8
9
V
C
V
C
C
GND
C
DD
CC
1
1
5
5
+
–
+
–
Note 4
5
5.5 k
5.5 k
5.5 k
5.5 k
is not necessary.
300
300
300
300
GND
C
C
V
4
4
SS
+
–
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
STBY
V
EN
D
D
D
D
R
R
R
R
CC
CHA
OUT1
OUT2
OUT3
OUT4
IN1
IN2
IN3
IN4
and GND.
+
C
4
–10 V
+
C
2
PD4722