SP3203ECY-L Datasheet, PDF (11/16 Pages) Exar Corporation – 3V RS-232 Serial Transceiver with Logic Selector and 15kV ESD Protection

+
C5 0.1µF
20 19
Shutdown VCC
1 _C1+
+
C1 0.1µF
3 _C1-
12
VL
V+ ²
4 _C2+
+
C2 0.1µF
5 _C2-
7 ^T1^IN
SP3203E _V- 6
T₁OUT ₁₇
8 ^T₂^IN
T₂OUT ₁₆
9 ^T3^IN
T₃OUT ₁₅
+
C3 0.1µF
C4 0.1µF
+
11 ^R1^OUT
10 ^R2^OUT
R₁IN ₁₄
R₂IN ₁₃
DB-9
Connector
GND
18
6
7
8
9
1
2
3
4
5
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
Figure 10. Circuit for the connectivity of the SP3203E with a DB-9 connector
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • [phone] • www.exar.com
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SP3203E_100_120810