SP332CT-L Exar Corporation, SP332CT-L Datasheet - Page 5

• Manufacturer Part Number: SP332CT-L
• Description: Programmable RS232/RS485 Transceiver
• Manufacturer: Exar Corporation
• Type: Transceiverr

Specifications of SP332CT-L

• Number Of Drivers/receivers: 4/4
• Protocol: RS232, RS485
• Voltage - Supply: 5V
• Mounting Type: Surface Mount
• Package / Case: 28-SOIC (0.300", 7.50mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Figure 6. RS-485 Receiver Propagation Delays
Figure 5. RS-485 Driver Propagation Delays
Figure 3. RS-485 Driver/Receiver Timing Test Circuit
RECEIVER OUT
t
Figure 1. RS-485 Driver DC Test Load Circuit
SKEW
DI
DRIVER INPUT
DIFFERENTIAL
A – B
= |t
A
B
A
B
OUTPUT
OUTPUT
DPLH
DRIVER
V
V
OD
V
V
A
OD2
OD2
R
– V
DIFF
V
- t
V
OH
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 50-668-707 • www.exar.com
OL
DPHL
B
+
–
C
C
R
R
L1
L2
V
+3V
V
|
O
O
0V
0V
V
A
B
+
–
OC
t
PHL
A
B
V
O
1/2V
0V
RO
O
1.5V
15pF
f = 1MHz; t
f ≥ 1MHz; t
1.5V
5
R
Figure 4. RS-485 Driver Timing Test Load #2 Circuit
Figure 2. Receiver Timing Test Load Circuit
OUTPUT
Output
R
≤
t
Under
t
Receiver
INPUT
PLH
DPLH
Test
10ns ; t
Output
≤ 10ns; t
t
R
SWITCHING WAVEFORMS
F
C
C
L
F
RL
≤ 10ns
t
≤ 10ns
t
DPHL
PHL
Test Point
t
PLH
500Ω
1KΩ
TEST CIRCUITS
1.5V
0V
S
S
1
2
1.5V
S
S
SP332_00_0260
1KΩ
1
2
t
F
1/2V
V
V
CC
CC
O