SP3238EEY-L-TR Datasheet, PDF (5/21 Pages) Exar Corporation – Intelligent +3.0V to +5.5V RS-232 Transceiver

NAME
C2+
GND
C2-
V-
T₁OUT
T₂OUT
T₃OUT
R₁IN
R₂IN
T₄OUT
R₃IN
T₅OUT
ONLINE
SHUTDOWN
STATUS
R₁OUT
T₅IN
R₃OUT
T₄IN
R₂OUT
R₁OUT
T₃IN
T₂IN
T₁IN
C1-
Vcc
V+
C1+
FUNCTION
Positive terminal of the symmetrical charge-pump capacitor C2.
Ground.
Negative terminal of the symmetrical charge-pump capacitor C2.
Regulated -5.5V output generated by the charge pump.
RS-232 Driver Output.
RS-232 Driver Output.
RS-232 Driver Output.
RS-232 receiver input.
RS-232 receiver input.
RS-232 Driver Output.
RS-232 receiver input.
RS-232 Driver Output.
Apply logic HIGH to override AUTO ON-LINE® circuitry keeping drivers
active (SHUTDOWN must also be logic HIGH, refer to Table 2).
Apply logic LOW to shut down drivers and charge pump.
This overrides all AUTO ON-LINE® circuitry and ONLINE (Refer to table 2).
TTL/CMOS Output indicating if a RS-232 signal is present on any receiver
input.
Non-Inverting receiver - 1 output, active in shutdown.
TTL/CMOS driver input.
TTL/CMOS receiver output.
TTL/CMOS driver input.
TTL/CMOS receiver output.
TTL/CMOS receiver output.
TTL/CMOS driver input.
TTL/CMOS driver input.
TTL/CMOS driver input.
Negative terminal of the symmetrical charge-pump capacitor C1.
+3.0V to +5.5V supply voltage.
Regulated +5.5V output generated by the charge pump.
Positive terminal of the symmetrical charge-pump capacitor C1.
PIN NUMBER
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
Table 1. Device Pin Description
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com

SP3238E_100_020111