SP485EMN-L Exar Corporation, SP485EMN-L Datasheet - Page 6

• Manufacturer Part Number: SP485EMN-L
• Description: IC TXRX RS485 HALF DUPLEX 8NSOIC
• Manufacturer: Exar Corporation
• Type: Transceiverr

Specifications of SP485EMN-L

• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Number Of Drivers/receivers: 1/1
• Protocol: RS485
• Voltage - Supply: 5V
• Mounting Type: Surface Mount
• Operating Supply Voltage: 5 V
• Supply Current: 600 uA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 1016-1173-5

Figure 6. Driver Enable and Disable Times
Figure 7. Receiver Propagation Delays
Figure 8. Receiver Enable and Disable Times
Table 1. Transmit Function Truth Table
A – B
RE
RE
R
R
X
X
X
X
R
A , B
A , B
DE
+3V
V
V
V
V
INPUTS
0V
5V
0V
DE
IH
OD2
OD2


0

IL
V
V
+3V
V
V
OH
OH
0V
5V
0V
OL
OL
–
+
DI
X
X

0
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 50-668-707 • www.exar.com
CONDITION
t
No Fault
No Fault
PHL
LINE
Fault
X
1.5V
1.5V
1.5V
1.5V
0V
2.3V
2.3V
f = 1MHz; t
OUTPUTS
t
t
A
Z
Z

0
ZH
1.5V
f = 1MHz; t
ZL
t
f = 1MHz; t
t
ZH
ZL
B
0

Z
Z
Output normally HIGH
Output normally LOW
Output normally HIGH
Output normally LOW
R
< 10ns; t
R
R
6
OUTPUT
≤
≤ 10ns; t
INPUT
10ns ; t
Table 2. Receive Function Truth Table
RE
INPUTS
0
0
0

F
< 10ns
DE
F
F
0
0
0
0
≤ 10ns
≤ 10ns
FUNCTION TRUTH TABLES
Inputs Open
t
PLH
SWITCHING WAVEFORMS
+0.2V
A - B
-0.2V
X
1.5V
0.5V
0.5V
1.5V
0V
0.5V
0.5V
OUTPUTS
t
t
HZ
SP48E,485E_02_08080
LZ
t
1.5V
t
HZ
R
Z

0

LZ