SIPEX SP332CT

®
SP332
RS-232/RS-485 Multi-Mode Serial Transceiver
■
■
■
■
■
+5V-Only Single Supply Operation
4 Drivers, 4 Receivers RS-232
2 Drivers, 2 Receivers RS-485
Loop Back Function for Self Test
28 Pin SOIC Packaging
DESCRIPTION…
The SP332 is a monolithic device that contains both RS-232 and RS-485 line drivers and
receivers. The configuration of the SP332 can be changed at any time by changing the logic
state of two control input pins. The device also includes a loop back function which internally
connects driver outputs to receiver inputs for a chip self test. A Sipex-patented charge pump
(5,306,954) allows +5V-only operation.
RS-232 Mode
9
0.1µF
0.1µF
0V
0V
Full Duplex RS-485
+5V
C1+
12 C111
C2+
13
C224
SEL A
2
SEL B
+5V
5
VCC
5
V+
SP332
V-
9
0.1µF
10
0.1µF
14
0.1µF
LOOP 23
BACK
Vcc
0.1µF
TTL/CMOS
RS-232
+5V
TTL/CMOS
+5V
TTL/CMOS
RS-232
TTL/CMOS
RS-232
TTL/CMOS
400KΩ
TTL/CMOS
26 TI1
Vcc
TX1 6
T1
400KΩ
TTL/CMOS
27 TI2
Vcc
TX2 7
T2
400KΩ
TTL/CMOS
28 TI3
TX3 4
T3
Vcc
TTL/CMOS
400KΩ
TTL/CMOS
1 TI4
TX4 3
T4
RS-232
TTL/CMOS
TTL/CMOS
19 RX1
RI1 15
R1
TTL/CMOS
RS-232
5KΩ
TTL/CMOS
20 RX2
RI2 16
R2
TTL/CMOS
21 RX3
RI3 17
R3
VCC
C1+
C1-
11
C2+
13
C224
SEL A
2
SEL B
26 TI1
27 TI2
22 RX4
RI4 18
R4
TTL/CMOS
TTL/CMOS
RS-232
5KΩ
8
TGoddard/SP332/9617R0
GND
SHUT
DOWN
TX2 7
Vcc
TX4 3
T3
TI4
22
RS-485/RS-232
TX3 4
RI2 16
R1
RI1 15
RS-485/RS-232
RS-485/RS-232
RS-485/RS-232
RS-485/RS-232
RS-485/RS-232
R3
RI3 17
RS-485/RS-232
RS-485/RS-232
RX4
GND
TTL/CMOS
SP332 RS-232/RS-485 Multi-Mode Serial Transceiver
1
TTL/CMOS
RX2
21 RX3
8
25
0.1µF
23
RI4 18
RS-232
0.1µF
14
TX1 6
19 RX1
20
V-
10
T1
28 TI3
1
V+
LOOP
BACK
Vcc
5KΩ
TTL/CMOS
SP332
RS-232
5KΩ
TTL/CMOS
12
SHUT
DOWN
25
TTL/CMOS
© Copyright 2000 Sipex Corporation
ABSOLUTE MAXIMUM RATINGS
These are stress ratings only and functional operation of the device at
these ratings or any other above those indicated in the operation sections
of the specifications below is not implied. Exposure to absolute maximum
rating conditions for extended periods of time may affect reliability.
VCC............................................................................................................+12V
Input Voltages
Logic........................................................-0.5V to (VCC+0.5V)
Drivers..................................................-0.5V to (VCC+0.5V)
Receivers.................................................±30V@≤100mA
Driver Outputs......................................................................................±15V
Storage Temperature..................................................-65˚C to +150˚C
Power Dissipation..........................................................................1000mW
SPECIFICATIONS
TMIN to TMAX and VCC = 5V±5% unless otherwise noted.
PARAMETER
RS-485 DRIVER
DC Characteristics
Differential Output Voltage
Differential Output Voltage
GND
2.0
Differential Output Voltage
1.5
Change in Magnitude of Driver
Differential Output Voltage for
Complementary States
Driver Common-Mode Output
Voltage
Input High Voltage
MIN.
TYP.
UNITS
CONDITIONS
VCC
5.0
Volts
Volts
5.0
Volts
Unloaded; R=∞; see figure 1
With Load; R=50Ω (RS-422);
see figure 1
With Load; R=27Ω (RS-485);
see figure 1
0.2
Volts
R=27Ω or R=50Ω; see figure 1
3
Volts
Volts
0.8
Volts
±10
µA
µA
µA
R=27Ω or R=50Ω; see figure 1
Applies to transmitter inputs,
SEL A, SEL B, SD, LB
Applies to
SEL A, SEL B, SD, LB
Applies to:
transmitter inputs, LB
SEL A, SEL B, SD,
250
250
mA
mA
-7V≤VO≤10V
-7V≤VO≤10V
70
180
Mbps
ns
70
180
ns
5
10
ns
15
40
ns
2.0
Input Low Voltage
Input Current
Pull-Up Current
Pull-Down Current
Driver Short-Circuit
Current
VOUT= HIGH
VOUT= LOW
AC Characteristics
Driver Data Rate
Driver Input to Output
tPLH
Driver Input to Output
tPHL
Driver Skew
Driver Rise or Fall Time
RS-485 RECEIVER
DC Characteristics
Differential Input Threshold
Input Hysteresis
Output Voltage High
Output Voltage Low
Input Resistance
Input Current (A, B); VIN= 12V
Input Current (A, B); VIN= -7V
Short Circuit Current
TGoddard/SP332/9617R0
MAX.
1.5
3.0
35
35
10
3
-0.2
+0.2
+1.5
Volts
mV
Volts
Volts
kΩ
mA
-0.8
85
mA
mA
70
3.5
0.4
12
15
RDIFF=54Ω, CL1=CL2=100pF;
see figures 3 and 6
RDIFF=54Ω, CL1=CL2=100pF;
see figures 3 and 6
From output to output;
see figures 3 and 6
From 10% to 90%; RDIFF=54Ω,
CL1=CL2=100pF; see figures 3 and 6
-7V≤VCM≤12V
VCM=0V
IO=-4mA, VID=+200mV
IO=+4mA, VID=-200mV
-7V≤VCM≤12V
VIN= 12V, A is the non-inverting
receiver input. B is the inverting
receiver input
VIN= -7V
0V≤VCM≤VCC
SP332 RS-232/RS-485 Multi-Mode Serial Transceiver
2
© Copyright 2000 Sipex Corporation
SPECIFICATIONS (CONTINUED)
TMIN to TMAX and VCC = 5V±5% unless otherwise noted.
PARAMETER
AC Characteristics
Receiver Data Rate
Receiver Input to Output
tPLH
Receiver Input to Output
tPHL
Diff. Receiver Skew |tPLH-tPHL|
MIN.
TYP.
MAX.
UNITS
130
250
Mbps
ns
130
250
ns
10
13
RS-232 DRIVER
DC Characteristics
TTL Input Levels
VIL
VIH
Voltage Outputs
High Level Output
Low Level Output
Open Circuit Output
Short Circuit Current
Power Off Impedance
AC Characteristics
Transmission Rate
Transition Time
0.8
2.0
120
1.56
Slew Rate
AC Characteristics
Transmission Rate
Transition Time
Propagation Delay
tPHL
tPLH
+15.0
-5.0
±15
±100
300
tPLH
Volts
Volts
+5.0
-15.0
Propagation Delay
tPHL
RS-232 RECEIVER
TTL Output Levels
VOL
VOH
Receiver Input
High Threshold
Low Threshold
Input Voltage Range
Input Impedance
Hysteresis
ns
Volts
Volts
Volts
mA
Ohms
kbps
µs
RDIFF=54Ω, CL1=CL2=100pF;
Figures 3 and 8
RDIFF=54Ω, CL1=CL2=100pF;
Figures 3 and 7
RDIFF=54Ω, CL1=CL2=100pF;
Figures 3 and 7
Applies to transmitter inputs,
SEL A, SEL B, SD, LB
Applies to transmitter inputs,
SEL A, SEL B, SD, LB
RL=3kΩ to Gnd
RL=3kΩ to Gnd
RL=∞
VOUT = 0V
VCC=0V; VOUT= ±2V
Rise/fall time, +3V to -3V; -3V to +3V
RL=3kΩ, CL=2500pF
2
4
µs
3
6
µs
10
30
V/µs
0.4
Volts
3.0
Volts
Volts
Volts
kOhms
Volts
VIN=±15V
VCC=+5V
kbps
ns
Rise/fall time 10% to 90%
3.5
0.8
-15
3
0.2
CONDITIONS
2.1
1.6
5
0.5
+15
7
1.0
120
50
RL=3kΩ, CL=2500pF; From 1.5V
of TIN to 50% of VOUT
RL=3kΩ, CL=2500pF; From 1.5V
of TIN to 50% of VOUT
RL=3kΩ, CL=50pF; From +3V
to -3V or -3V to +3V
ISINK = 4mA
ISOURCE = -4mA
100
100
300
200
ns
ns
From 50% of VIN to 1.5V of ROUT
From 50% of VIN to 1.5V of ROUT
POWER REQUIREMENTS
No Load Supply Current
Full Load Supply Current
19
90
25
120
mA
mA
Shutdown Supply Current
5
50
µA
No load; VCC=5.0V; TA=25˚C
RS-232 drivers R L=3kΩ to Gnd;
DC Input
RS-485 drivers RL=54Ω from
A to B; DC Input
TA=25˚C, VCC=5.0V
TGoddard/SP332/9617R0
SP332 RS-232/RS-485 Multi-Mode Serial Transceiver
3
© Copyright 2000 Sipex Corporation
A
VOD
R
Test Point
Receiver
Output
R
CRL
VOC
1K
1K
B
S2
Figure 1. RS-485 Driver DC Test Load Circuit
A
DI
VCC
S1
CL1
RDIFF
A
Figure 2. Receiver Timing Test Load Circuit
RO
Output
Under C
L
Test
B
B
CL2
15pF
Figure 4. RS-485 Driver Timing Test Load #2 Circuit
f = 1MHz; tR ≤ 10ns; tF ≤ 10ns
+3V
1.5V
1.5V
DI
0V
tPLH
B
DIFFERENTIAL
OUTPUT
VCC
S1
S2
Figure 3. RS-485 Driver/Receiver Timing Test Circuit
DRIVER
OUTPUT
500
VO
tPHL
tPLH
1/2VO
1/2VO
A
tSKEW
tSKEW
VO+
0V
VA – VB VO–
tR
tF
Figure 6. RS-485 Driver Propagation Delays
f = 1MHz; tR ≤ 10ns; tF ≤ 10ns
VOD2+
A–B
VOD2–
0V
VOH
1.5V
R
VOL
INPUT
0V
1.5V
OUTPUT
tPHL
tPHL
Figure 7. RS-485 Receiver Propagation Delays
TGoddard/SP332/9617R0
SP332 RS-232/RS-485 Multi-Mode Serial Transceiver
4
© Copyright 2000 Sipex Corporation
RS-232 (V.28) Receivers...
The RS-232 receivers convert RS-232 input
signals to inverted TTL signals. Each of the four
receivers features 500mV of hysteresis margin
to minimize the affects of noisy tranmission
lines. The inputs also have a 5kΩ resistor to
ground, in an open circuit situation the input of
the receiver will be forced low, committing the
output to a logic high state. The input resistance
will maintain 3kΩ-7kΩ over a ±15V range. The
maximum operating voltage range for the receiver is ±30V, under these conditions the input
current to the receiver must be limited to less
than 100mA. Due to the on-chip ESD protection
circuitry, the receiver inputs will be clamped to
±15V levels. The RS-232 receivers can operate
up to 120kbps.
THEORY OF OPERATION...
The SP332 is a single chip device that can be
configured via software for either RS-232, RS485 or both interface modes at any time. The
SP332 is made up of three basic circuit elements, single-ended drivers and receivers, differential drivers and receivers and charge pump.
DIFFERENTIAL DRIVER/RECEIVER...
RS-485, RS-422 Drivers...
The differential drivers and receivers comply
with the RS-485 and RS-422 standards. The
driver circuits are able to drive a minimum of
1.5V when terminated with a 54Ω resistor
across the two outputs. The typical propagation
delay from the driver input to output is 60ns. The
driver outputs are current limited to less than
250mA, and can tolerate short circuits to ground,
or to any voltage within a +10V to -7V range
with no damage.
CHARGE PUMP...
The charge pump is a Sipex-patented design
(5,306,954) and uses a unique approach compared to older less-efficient designs. The charge
pump still requires four external capacitors, but
uses a four-phase voltage shifting technique to
attain symmetrical 10V power supplies. Figure
8a shows the waveform found on the positive
side of capacitor C2, and Figure 8b shows the
negative side of capacitor C2. There is a freerunning oscillator that controls the four phases
of the voltage shifting. A description of each
phase follows.
RS-485, RS-422 Receivers...
The differential receivers of the SP332 comply
with the RS-485, RS-422 and V.11 standards.
The input to the receiver is equipped with a
common mode range of +12V to -7V. The input
threshold over this range is a minimum of
±200mV. The differential receivers can receive
data up to 10Mbps. The typical propagation
delay from the receiver input to output is 90ns.
Phase 1
-Vss charge storage- During this phase of the
clock cycle, the positive side of capacitors C1
and C2 are initially charged to +5V. C1+ is then
switched to ground and charge in C1- is transferred to C2-. Since C2+ is connected to +5V,
the voltage potential across capacitor C2 is
now 10V.
SINGLE ENDED DRIVER/RECEIVER...
RS-232 (V.28) Drivers...
The single-ended drivers and receivers comply
the with the RS-232E and V.28 standards. The
drivers are inverting transmitters which accept
either TTL or CMOS inputs and output the RS232 signals with an inverted sense relative to the
input logic levels. Typically, the RS-232 driver
output voltage swing is ±9V with no load and is
guaranteed to be greater than ±5V under full
load. The drivers rely on the V+ and V- voltages
generated by the on-chip charge pump to maintain proper RS-232 output levels. With worst
case load conditions of 3kΩ and 2500pF, the
four RS-232 drivers can still maintain ±5V
output levels. The drivers can operate up to
120kbps; the propagation delay from input to
output is typically 2µs.
TGoddard/SP332/9617R0
Phase 2
-Vss transfer- Phase two of the clock connects
the negative terminal of C2 to the Vss storage
capacitor and the positive terminal of C2 to
ground, and transfers the generated -10V to C3.
Simultaneously, the positive side of capacitor
C1 is switched to +5V and the negative side is
connected to ground.
SP332 RS-232/RS-485 Multi-Mode Serial Transceiver
5
© Copyright 2000 Sipex Corporation
50Ω 125Ω
1µF
1µF
VCC1
5V
V.35
1µF
TXD (103)
P
DX
T
DX
T
S
W
TXC (114)
+10V
T
RXC (115)
X
RX
T
RX
T
V
TXD (104)
R
GND (102)
VCC1
1µF
RS-232
GND
DX
DX
RX
C2–
RX
OPTIONAL SIGNALS
RX
–10V
A
CABLE SHIELD
DX
T
DX
B
VCC2
A
1µF
1µF
GND
DX
T
T
R
B
RX
T
X
V
T
C2+
RX
T
AA
Y
Y
T
U
W
AA
RX
P
S
SCTE (113)
U
b)
VCC2
5V
50Ω
1µF
a)
1µF
1µF
=
T
V.35
RX
DX
DX
1µF
1µF
1µF
1µF
H
C
E
D
F
NN
N
L
DTR (108)
RTS (105)
C
DSR (107)
E
CTS (106)
DCD (109)
TM (142)
RDL (140)
LLB (141)
ISO 2593
34-PIN DTE/DCE
INTERFACE
CONNECTOR
1µF
RS-232
H
RX
RX
DX
D
DX
F
DX
NN
DX
N
RX
L
RX
ISO 2593
34-PIN DTE/DCE
INTERFACE
CONNECTOR
Figure 8. Charge Pump Waveforms
VCC = +5V
VCC = +5V
C4
+10V
+
C1
+
–
C2
–
+
–
VDD Storage Capacitor
+
C1
VSS Storage Capacitor
C3
–
VDD Storage Capacitor
VSS Storage Capacitor
C3
–5V
C4
C2
+5V
–
+
–
–10V
–
+
VDD Storage Capacitor
C1
VSS Storage Capacitor
C3
+
–
–5V
C2
C4
+
–
–
+
+
–
–5V
VDD Storage Capacitor
VSS Storage Capacitor
C3
Figure 12. Charge Pump Phase 4
Figure 11. Charge Pump Phase 3
TGoddard/SP332/9617R0
+
VCC = +5V
+
–
–
–
–
Figure 10. Charge Pump Phase 2
VCC = +5V
C1
+
+
C2
–5V
Figure 9. Charge Pump Phase 1
+
C4
+5V
–
+
SP332 RS-232/RS-485 Multi-Mode Serial Transceiver
6
© Copyright 2000 Sipex Corporation
Phase 3
-Vdd charge storage- The third phase of the
clock is identical to the first phase- the transferred charge in C1 produces -5V in the negative
terminal of C1, which is applied to the negative
side of capacitor C2. Since C2+ is at +5V, the
voltage potential across C2 is 10V.
Since both V+ and V- are separately generated
from Vcc in a no load condition, V+ and V- will
be symmetrical. Older charge pump approaches
that generate V- from V+ will show a decrease
in the magnitude of V- compared to V+ due to
the inherent inefficiencies in the design.
The clock rate for the charge pump typically
operates at 15kHz. The external capacitors must
be 0.1µF with a 16V breakdown rating.
Phase 4
-Vdd transfer- The fourth phase of the clock
connects the negative terminal of C2 to ground
and transfers the generated 10V across C2 to C4,
the Vdd storage capacitor. Simultaneously with
this, the positive side of capacitor C1 is switched
to +5V and the negative side is connected to
ground, and the cycle begins again.
SP332 TYPICAL OPERATING CIRCUIT
RS-232 Mode
RS-485 Mode
+5V
9
0.1µF
0.1µF
0V
0V
C1+
12 C111
C2+
13
C224
SEL A
2
SEL B
+5V
5
VCC
5
9
V+
SP332
V-
10
0.1µF
0.1µF
14
0.1µF
0.1µF
LOOP 23
BACK
Vcc
+5V
TTL/CMOS
+5V
12
26 TI1
Vcc
27 TI2
Vcc
TTL/CMOS
RS-232
TTL/CMOS
TX2 7
T2
28 TI3
TTL/CMOS
TX3 4
T3
TTL/CMOS
RS-232
Vcc
TTL/CMOS
400KΩ
TTL/CMOS
1 TI4
V+
V-
LOOP
BACK
Vcc
TX4 3
T4
26 TI1
27
TI2
RS-232
TTL/CMOS
28 TI3
1
20
0.1µF
23
TX1 6
Vcc
TX4 3
T3
TX3 4
RI2 16
R1
19 RX1
RI1 15
R1
TTL/CMOS
RS-232
RX2
21 RX3
5KΩ
TTL/CMOS
20 RX2
RI2 16
R2
TTL/CMOS
RS-232
5KΩ
TTL/CMOS
21 RX3
8
RI3 17
R3
22
RX4
GND
TTL/CMOS
RS-485
RS-485
RS-485
RS-485
RS-485
15KΩ
RI1 15
RS-485
15KΩ
RI4 18
TTL/CMOS
0.1µF
14
TX2 7
TI4
19 RX1
10
T1
400KΩ
RS-232
400KΩ
TTL/CMOS
SP332
400KΩ
TX1 6
T1
400KΩ
TTL/CMOS
VCC
C1-
11
C2+
13
C224
SEL A
2
SEL B
400KΩ
TTL/CMOS
C1+
R3
RS-485
15KΩ
RI3 17
RS-485
15KΩ
SHUT
DOWN
25
TTL/CMOS
RS-232
5KΩ
TTL/CMOS
22 RX4
RI4 18
R4
RS-232
5KΩ
8
GND
TGoddard/SP332/9617R0
SHUT
DOWN
25
TTL/CMOS
SP332 RS-232/RS-485 Multi-Mode Serial Transceiver
7
© Copyright 2000 Sipex Corporation
SP332 CONTROL LOGIC CONFIGURATION
SEL A
SEL B
LOOPBACK
SHUTDOWN
0
0
1
0
26 TI1
T1
27 TI2
T2
28 TI3
T3
0
1
1
0
TX1 6
TX2 7
26 TI1
T4
19 RX1
R1
20 RX2
R2
21 RX3
R3
28 TI3
R4
SEL A
SEL B
LOOPBACK
SHUTDOWN
T3
TX4 3
TX4 3
19 RX1
RI2 16
20 RX2
R1
R2
27 TI2
28 TI3
T1
T2
T3
TX2 7
R3
19 RX1
20 RX2
21 RX3
T4
R1
R2
R3
R4
RI4 18
R3
28 TI3
TX4 3
TX4 3
R4
20 RX2
R1
RI2 16
RI3 17
RI3 17
R3
RI4 18
RI4 18
1
1
0
0
TX1 6
T1
TX2 7
26 TI1
TX1 6
T1
TX2 7
R1
R2
28 TI3
1 TI4
RI1 15
RI1 15
R1
RI2 16
19 RX1
TX4 3
RI1 15
R1
RI2 16
RI2 16
RI3 17
R3
TX3 4
T3
TX4 3
T4
21 RX3
RI3 17
TX3 4
T3
19 RX1
RI2 16
RI1 15
19 RX1
1
0
0
0
TX3 4
T3
19 RX1
RI2 16
TX4 3
TX2 7
TX3 4
RI1 15
TX2 7
TX3 4
T3
TX4 3
21 RX3
22 RX4
26 TI1
T2
21 RX3
22 RX4
R1
TX1 6
T1
27 TI2
T1
TX3 4
RI1 15
19 RX1
0
1
0
0
26 TI1
TX1 6
26 TI1
RI2 16
21 RX3
28 TI3
1 TI4
T4
RI3 17
RI4 18
TX1 6
TX2 7
28 TI3
1 TI4
RI1 15
RI3 17
0
0
0
0
26 TI1
T3
TX3 4
21 RX3
22 RX4
T1
TX2 7
TX3 4
RI1 15
1
1
1
0
TX1 6
26 TI1
T2
28 TI3
1 TI4
TX1 6
T1
27 TI2
1
0
1
0
RI4 18
RI4 18
R3
RI3 17
21 RX3
22 RX4
R4
RI4 18
RI3 17
R3
RI4 18
Receiver Inputs are inactive in Loopback Mode (LOOPBACK = 0)
Driver Outputs are Tri-Stated in Loopback Mode (LOOPBACK = 0)
Unused Outputs are Tri-Stated
TGoddard/SP332/9617R0
SP332 RS-232/RS-485 Multi-Mode Serial Transceiver
8
© Copyright 2000 Sipex Corporation
TI4
SEL B
TX4
TX3
VCC
TX1
TX2
GND
C1+
V+
C2+
C1C2V-
1
2
3
4
5
6
7
8
9
10
11
12
13
14
SP332
28
27
26
25
24
23
22
21
20
19
18
17
16
15
TI3
TI2
TI1
SD
SEL A
LB
RX4
RX3
RX2
RX1
RI4
RI3
RI2
RI1
PACKAGE: PLASTIC
SMALL OUTLINE (SOIC)
DIMENSIONS (Inches)
Minimum/Maximum
(mm)
0.093/0.104
0.090/0.100
(2.352/2.649)
(2.29/2.54)
A
0.004/0.012
0.004/0.010
(0.102/0.300)
(0.102/0.254)
A1
E H
28–PIN
B
0.013/0.020
0.015/0.020
(0.330/0.508)
(0.38/0.508)
D
0.697/0.713
0.720/0.730
(17.70/18.09)
(18.24/18.54)
E
0.291/0.299
0.395/0.405
(7.402/7.600)
(10.03/10.29)
e
0.050 BSC
BSC
0.050
(1.270 BSC)
(1.270
BSC)
H
0.394/0.419
0.531/0.545
(10.00/10.64)
(13.49/13.84)
L
0.016/0.050
0.021/0.041
(0.406/1.270)
(0.53/1.04)
Ø
00°/8°
˚/8˚
((0°/8°)
0˚/8˚)
D
A
Ø
e
TGoddard/SP332/9617R0
B
A1
L
SP332 RS-232/RS-485 Multi-Mode Serial Transceiver
9
© Copyright 2000 Sipex Corporation
ORDERING INFORMATION
Model
Temperature Range
Package Types
SP332CT .............................................................................. 0˚C to +70˚C ......................................................................................... 28-Pin SOIC
SP332ET ............................................................................. -40˚C to +85˚C ........................................................................................ 28-Pin SOIC
Corporation
SIGNAL PROCESSING EXCELLENCE
Sipex Corporation
Headquarters and
Sales Office
22 Linnell Circle
Billerica, MA 01821
TEL: (978) 667-8700
FAX: (978) 670-9001
e-mail: [email protected]
Sales Office
233 South Hillview Drive
Milpitas, CA 95035
TEL: (408) 934-7500
FAX: (408) 935-7600
Sipex Corporation reserves the right to make changes to any products described herein. Sipex does not assume any liability arising out of the
application or use of any product or circuit described hereing; neither does it convey any license under its patent rights nor the rights of others.
TGoddard/SP332/9617R0
SP332 RS-232/RS-485 Multi-Mode Serial Transceiver
10
© Copyright 2000 Sipex Corporation