SP3238E Datasheet, PDF (13/20 Pages) Sipex Corporation – Intelligent +3.0V to +5.5V RS-232 Transceivers

TBD
Figure 16. Driver Output Voltages vs. Load Current
per Transmitter
VCC
+
C5 0.1µF
28
+
C1+
C1 0.1µF
26
VCC
25 _C1-
V+
1 _C2+ SP3238E
+
C2 0.1µF
3 _C2-
V-
16 ^R₁^OUT
21 ^R₁^OUT
R₁IN
20 ^R₂^OUT
5kΩ
R₂IN
18 ^R3^OUT
5kΩ
R₃IN
5kΩ
24 ^T1^IN
T₁OUT
27
+
C3 0.1µF
4
C4 0.1µF
+
8
9
11
5
23 T₂IN
T₂OUT ₆
22 T₃IN
T₃OUT ₇
19 T₄IN
T₄OUT ₁₀
VCC
To µP Supervisor
Circuit
17 T₅IN
14
SHUTDOWN
13 _ONLINE
15 _STATUS
GND
2
T₅OUT ₁₂
DB-9 Connector Pins:
1. Received Line Signal Detector
2. Received Data
3. Transmitted Data
4. Data Terminal Ready
5. Signal Ground (Common)
6. DCE Ready
7. Request to Send
8. Clear to Send
9. Ring Indicator
DB-9
Connector
6
7
8
9
1
2
3
4
5
Figure 17. Circuit for the connectivity of the SP3238E with a DB-9 connector
SP3238EDS/04
SP3238E +3.0V to +5.5V RS-232 Transceivers
13
© Copyright 1999 Sipex Corporation