SP3244E Datasheet, PDF (17/22 Pages) Sipex Corporation – 3.0V to 5.5V RS-232 Transceivers with Auto On-Line® Plus

TYPICAL OPERATING CIRCUIT
VCC
+
C5 0.1µF
26
VCC
C1
+
28
0.1µF24
C1+
C1-
SP3244E
V+ ²⁷
1 C2+ _SP3245E
+
C2 0.1µF
2 _C2-
V- ³
14 T1IN
T1OUT 9
TTL/CMOS
INPUTS
13 ^T2IN
12 ^T3IN
T2OUT ₁₀
T3OUT ₁₁
C3 ⁺ 0.1µF
C4 0.1µF
+
RS-232
OUTPUTS
20 R2OUT
19 R1OUT
R1IN ₄
TTL/CMOS
OUTPUTS
18 R2OUT
17 R3OUT
5kΩ _{R2IN 5}
5kΩ
R3IN ₆
16 R4OUT
5kΩ
R4IN ₇
15 R5OUT
5kΩ
R5IN ₈
Online Control
VCC _{22 SHUTDOWN}
23 _ONLINE
5kΩ
To µP Supervisor
Circuit
21 _{STATUS GND}
25
RS-232
INPUTS
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com
17
SP3244E_SP3245E_100_121509