®
SP333
+5V Only RS-232/AppleTalk™ Programmable Transceiver
s
+5V Only, Single Supply Operation
s
Low Power Shutdown
s
28-Pin SOIC Packaging
s
3 Drivers, 5 Receivers – RS-232
s
Complete AppleTalk™ Interface
s
High Data Rates
10Mbps Differential Transceivers
460kbps Single-Ended Transceivers
DESCRIPTION…
The
SP333
is a monolithic device that supports both Macintosh™ and PC serial interfaces.
RS-232 mode offers three (3) RS-232 drivers and five (5) RS-232 receivers. Mac mode
includes a differential driver and a single-ended inverting driver. Receivers in Mac mode
include one differential receiver, one non-inverting single-ended receiver and one inverting
single-ended receiver. An on-chip charge pump allows +5V-only operation, and a low power
Shutdown mode makes the
SP333
ideal for battery powered applications. The interface mode
can be changed at any time by a mode select pin.
PC Mode
9
0.1µF
12
+5V
0V
25
5 V
CC
10
14
0.1µF
0.1µF
Mac Mode
9
0.1µF
12
+5V
+5V
5 V
25
CC
RS-232/MacMode
V+
10
0.1µF
0.1µF
RS-232/MacMode
V+
11 C2+
0.1µF
13 C2-
27 TI1
SP333
V-
Shutdown 26
TX1 6
11 C2+
0.1µF
13 C2-
27 TI1
SP333
14
V-
Shutdown 26
TX1 6
T1
T1
TX2 7
28 TI2
T2
TX2 7
2 TXEN
1 TI3
19 RX1
20 RX2
21 RX3
22 RX4
23 RX5
3
RXEN
T3
R1
TX3 4
RI1 15
RI2 16
RI3 17
RI4 18
RI5 24
GND
8
1 TI3
19 RX1
T3
TX3 4
RI2 16
R1
RI1 15
R2
R3
21 RX3
R3
RI3 17
R4
R5
23 RX5
3
RXEN
R5
RI5 24
GND
8
TGoddard/SP333/9617R0
SP333 RS-232/AppleTalk Programmable Transceiver
© Copyright 2000 Sipex Corporation
1
SIPEX [ SIPEX CORPORATION ]
