SP3485EN-L Exar Corporation, SP3485EN-L Datasheet - Page 2

• Manufacturer Part Number: SP3485EN-L
• Description: IC TXRX RS485 HALF DUPLEX 8NSOIC
• Manufacturer: Exar Corporation
• Type: Transceiverr

Specifications of SP3485EN-L

• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Number Of Drivers/receivers: 1/1
• Protocol: RS485
• Voltage - Supply: 3.3V
• Mounting Type: Surface Mount
• Operating Supply Voltage: 3.3 V
• Supply Current: 800 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: 1016-1145-5

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.
V
Input Voltages
Output Voltages
Storage Temperature ................................................ .-65˚C to +150˚C
Power Dissipation per Package
8-pin NSOIC (derate 6.90mW/
8-pin PDIP (derate 11.8mW/
SPECIFICATIONS
T
10/15/02
AMB
CC
PARAMETERS
SP3481/SP3485 DRIVER
DC Characteristics
Differential Output Voltage
Differential Output Voltage
Differential Output Voltage
Change in Magnitude of Driver
Differential Output Voltage for
Complimentary States
Driver Common-Mode
Output Voltage
Input High Voltage
Input Low Voltage
Input Current
Driver Short-Circuit Current
SP3481/SP3485 DRIVER
AC Characteristics
Maximum Data Rate
Driver Input to Output, t
Driver Input to Output, t
Differential Driver Skew
Driver Rise or Fall Time
Driver Enable to Output High
Driver Enable to Output Low
Driver Disable Time from Low
Driver Disable Time from High
SP3481/SP3485 RECEIVER
DC Characteristics
Differential Input Threshold
Input Hysteresis
Output Voltage High
Output Voltage Low
Three-State (High Impedance)
Output Current
Input Resistance
Input Current (A, B); V
Input Current (A, B); V
Short-Circuit Current
............................................................................................. +6.0V
= T
V
V
MIN
OUT
OUT
to T
= HIGH
= LOW
Logic ..................................................... -0.3V to +6.0V
Drivers ................................................... -0.3V to +6.0V
Receivers ............................................................ ±15V
Drivers .................................................................. ±15V
Receivers .............................................. -0.3V to +6.0V
MAX
and V
CC
= +3.3V ± 5% unless otherwise noted.
o
C above +70
o
C above +70
IN
IN
PLH
PHL
= 12V
= -7V
o
C) ...................... 1000mW
o
C) ..................... 600mW
V
GND
MIN.
-0.2
CC
12
1.5
2.0
10
20
20
7
2
SP3481/3485 Low Power Half-Duplex RS485 Transceivers
-0.4
TYP.
40
40
52
60
40
60
20
15
2
5
MAX.
±250
±250
+0.2
V
V
V
±10
120
120
120
120
-0.8
2
0.2
0.8
0.4
1.0
+1
60
60
10
20
60
3
CC
CC
CC
UNITS
Mbps
Volts
Volts
Volts
Volts
Volts
Volts
Volts
Volts
Volts
Volts
mV
mA
mA
mA
µA
kΩ
ns
ns
ns
ns
ns
ns
ns
ns
mA
mA
µA
Unloaded; R = ∞; Figure 1
with load; R = 50Ω; (RS-422); Figure 1
with load; R = 27Ω; (RS-485); Figure 1
R = 27Ω or R = 50Ω; Figure 1
R = 27Ω or R = 50Ω; Figure 1
Applies to DE, DI, RE
Applies to DE, DI, RE
Applies to DE, DI, RE
-7V ≤ V
-7V ≤ V
RE = V
Figures 2 and 8
t
Figures 4 and 10
Figures 5 and 10
Figures 5 and 10
Figures 4 and 10
-7V ≤ V
V
V
V
0V ≤ V
-7V ≤ V
DE = 0V, V
DE = 0V, V
0V ≤ V
From 10% to 90% ; Figures 3 and 9
Figures 2 and 8
DO1
CONDITIONS
CM
ID
ID
= +200mV, -1.5mA
= -200mV, 2.5mA
- t
= 0V
DO2
O
CM
CC
O
O
CM
CM
≤ V
≤ +12V
≤ +12V
, DE = V
≤ V
≤ +12V
≤ +12V
CC
CC
Figures 2 and 9
CC
CC
© Copyright 2000 Sipex Corporation
; RE = V
= 0V or 3.6V, V
= 0V or 3.6V, V
CC
CC
IN
IN
= 12V
= -7V