SP3238E Datasheet, PDF (5/20 Pages) Sipex Corporation – Intelligent +3.0V to +5.5V RS-232 Transceivers

NAME
FUNCTION
PIN
NO.
C2+
Positive terminal of the inverting charge-pump capacitor.
1
GND
Ground.
2
C2-
Negative terminal of the inverting charge-pump capacitor.
3
V-
Regulated -5.5V output generated by the charge pump.
4
T₁OUT
RS-232 driver output.
5
T₂OUT
RS-232 driver output.
6
T₃OUT
RS-232 driver output.
7
R₁IN
RS-232 receiver input.
8
R₂IN
RS-232 receiver input.
9
T₄OUT
RS-232 driver output.
10
R₃IN
RS-232 receiver input.
11
T₅OUT
RS-232 driver output.
12
ONLINE
Apply logic HIGH to override Auto-Online circuitry keeping drivers active
(SHUTDOWN must also be logic HIGH, refer to Table 2).
13
SHUTDOWN
Apply logic LOW to shut down drivers and charge pump. This overrides all Auto-
Online circuitry and ONLINE (refer to Table 2).
14
STATUS TTL/CMOS Output indicating online and shutdown status.
15
R₁OUT
Non-inverting receiver-1 output, active in shutdown.
16
T₅IN
TTL/CMOS driver input.
17
R₃OUT
TTL/CMOS receiver output.
18
T₄IN
TTL/CMOS driver input.
19
R₂OUT
TTL/CMOS receiver output.
20
R₁OUT
TTL/CMOS receiver output.
21
T₃IN
TTL/CMOS driver input.
22
T₂IN
TTL/CMOS driver input.
23
T IN
TTL/CMOS driver input.
24
1
C1-
Negative terminal of the voltage doubler charge-pump capacitor.
25
V_CC
+3.0V to +5.5V supply voltage.
26
V+
Regulated +5.5V output generated by the charge pump.
27
C1+
Positive terminal of the voltage doubler charge-pump capacitor.
28
Table 1. Device Pin Description
SP3238EDS/04
SP3238E +3.0V to +5.5V RS-232 Transceivers
5
© Copyright 1999 Sipex Corporation