SP330EEY-L Datasheet, PDF (8/23 Pages) Exar Corporation – SP330E RS-232/RS-485/RS-422 TRANSCEIVER WITH 1.65V-5.5V INTERFACE

SP330E
RS-232/RS-485/RS-422 TRANSCEIVER WITH 1.65V-5.5V INTERFACE
PIN DESCRIPTIONS
REV. 1.0.0
Pin
Name
1
C1+
2
VL
3
VCC
4
C1-
5
GND
6
T1OUT, B/Z
7
T2OUT, A/Y
8
R1OUT
9
R2OUT, RO
10
11
SHDN
12
SLEW
13
RS-485/RS-232
14
HALF/FULL
15
GND
16
R2IN, A
17
R1IN, B
18
RE
19
T2IN, DE
20
T1IN, DI
21
V-
22
C2-
23
C2+
24
V+
RS-232
RS-485 Full Duplex
RS-485 Half Duplex
Charge pump cap 1 positive lead, 0.1µF
Logic Supply for TTL Inputs and Outputs, V_L = +1.65V to +5.5V or tie to V_CC
Main Supply, V_CC = +3.0V to +5.5V, bypass to ground with 1.0µF
Charge pump cap 1 negative lead
Ground
Transmitter 1 Output
Z Driver Neg Output
B/Z Neg Input/Output
Transmitter 2 Output
Y Driver Pos Output
A/Y Pos Input/Output
Receiver 1 Output
X
X
Receiver 2 Output
Receiver TTL Output
Receiver TTL Output
Low power shutdown mode when low
Data rate limited to 250kbps when low
0
1
1
X
0
1
Ground
Receiver 2 Input
A Pos Receiver Input
X
Receiver 1 Input
B Neg Receiver Input
X
X
Receiver enabled when low
Transmitter 2 Input
Driver enabled when high
Transmitter 1 Input
Driver TTL Input
Charge pump negative supply, 0.1µF from ground
Charge pump cap 2 negative lead
Charge pump cap 2 positive lead, 0.1µF
Charge pump positive supply, 0.1µF to ground
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