ML145407 Datasheet, PDF (7/8 Pages) LANSDALE Semiconductor Inc. – 5 Volt Only Driver/Receiver RS232 EIA-232-E and CCITT V.28

ML145407
LANSDALE Semiconductor, Inc.
+5V
1 _VDD
VCC ¹⁶
2
Rx1
15
DO1
3 _Tx1
4 _Rx2
5 _Tx2
ML145406
14
DI1
13
DO2
12
DI2
6 _Rx3
11
DO3
7 _Tx3
10
DI3
8 _VSS
GND ⁹
10 µF
10 µF
1
C2+
C1+ ²⁰
2 _GND
3 _C2–
VCC ¹⁹
18
C1–
4 _VSS
5 _Rx1
6 _Tx1
VDD ¹⁷
ML145407 _DO1 ¹⁶
DI1 ¹⁵
7 _Rx2
14
DO2
8 _Tx2
9 _Rx3
13
DI2
DO3 ¹²
10 _Tx3
DI3 ¹¹
10 µF
10 µF
Figure 5. ML145406/ML145407 5 V Only Solution for up to Six EIA–232–E Drivers and Receivers
+5 V
+ 10 V
C2
C2+
1
GND ₂
C2– ₃
VSS ₄
C4
5
6
7
8
9
10
20 ^C1+
19 ^VCC
18 ^C1–
17 ^VDD
16
15
14
13
12
11
0.1 µF
0.1 µF
TO
CONNECTOR
Figure 6. Two Supply Configuration (ML145407 Generates VSS Only)
+5 V
MMBZ15VDLT × 6
C2
C2+
1
GND ₂
C2– ₃
VSS ₄
C4
Rx1 ₅
Tx1 ₆
Rx2 ₇
Tx2 ₈
Rx3 ₉
Tx3 ₁₀
20 ^C1+
19 ^VCC
18 ^C1–
17 ^VDD
16 ^DO1
15 ^DI1
14 ^DO2
13 ^DI2
12 ^DO3
11 ^DI3
C1
0.1 µF
C3
0.1 µF
Page 7 of 8
Figure 7. ESD Protection Scheme
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