SP3223E Datasheet, PDF (6/24 Pages) Sipex Corporation – Intelligent +3.0V to +5.5V RS-232 Transceivers

NAME
EN
C1+
FUNCTION
PIN NUMBER
SP3223E SP3243E
Receiver Enable. Apply logic LOW for normal operation. Apply logic HIGH
to disable the receiver outputs (high-Z state).
1
-
Positive terminal of the voltage doubler charge-pump capacitor.
2
28
V+
Regulated +5.5V output generated by the charge pump.
3
27
C1-
Negative terminal of the voltage doubler charge-pump capacitor.
4
24
C2+
Positive terminal of the inverting charge-pump capacitor.
5
1
C2-
Negative terminal of the inverting charge-pump capacitor.
6
2
V-
Regulated -5.5V output generated by the charge pump.
7
3
R₁IN
R₂IN
R₃IN
R₄IN
R₅IN
R₁OUT
R₂OUT
R₂OUT
R₃OUT
R₄OUT
R₅OUT
STATUS
RS-232 receiver input.
RS-232 receiver input.
RS-232 receiver input.
RS-232 receiver input.
RS-232 receiver input.
TTL/CMOS receiver output.
TTL/CMOS receiver output.
Non-inverting receiver-2 output, active in shutdown.
TTL/CMOS receiver output.
TTL/CMOS receiver output.
TTL/CMOS receiver output.
TTL/CMOS Output indicating online and shutdown status.
16
4
9
5
-
6
-
7
-
8
15
19
10
18
-
20
-
17
-
16
-
15
11
21
T₁IN
T₂IN
T₃IN
ONLINE
T₁OUT
T₂OUT
T₃OUT
GND
TTL/CMOS driver input.
TTL/CMOS driver input.
TTL/CMOS driver input.
Apply logic HIGH to override AUTO ON-LINE circuitry keeping drivers
active (SHUTDOWN must also be logic HIGH, refer to Table 2).
RS-232 driver output.
RS-232 driver output.
RS-232 driver output.
Ground.
13
14
12
13
-
12
14
23
17
9
8
10
-
11
18
25
V_CC
+3.0V to +5.5V supply voltage.
19
26
SHUTDOWN
Apply logic LOW to shut down drivers and charge pump. This overrides all
AUTO ON-LINE^® circuitry and ONLINE (refer to Table 2).
20
22
Table 1. Device Pin Description
Rev. 11/14/02
SP3223E +3.0V to +5.5V RS-232 Transceivers
6
© Copyright 2002 Sipex Corporation