sp485een-tr Exar Corporation, sp485een-tr Datasheet - Page 3

• Manufacturer Part Number: sp485een-tr
• Description: Sp485e -enhanced Low Emi Half-duplex Rs-485 Transceiver
• Manufacturer: Exar Corporation

T
May11-2007
MIN
to T
PARAMETERS
SP481E/SP485E RECEIVER
DC Characteristics
Differential Input Threshold
Differential Input Threshold
(SP485EMN ONLY)
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
SP481E/SP485E RECEIVER
AC Characteristics
Maximum Data Rate
Receiver Input to Output
Receiver Input to Output
Diff. Receiver Skew It
Receiver Enable to
Output Low
Receiver Enable to
Output High
Receiver Disable from Low
Receiver Disable from High
SP481E
Shutdown Timing
Time to Shutdown
Driver Enable from Shutdown
to Output High
Driver Enable from Shutdown
to Output Low
Receiver Enable from
Shutdown to Output High
Receiver Enable from
Shutdown to Output Low
POWER REQUIREMENTS
Supply Voltage
Supply Current
SP481E/485E
SP481E
ENVIRONMENTAL AND MECHANICAL
Operating Temperature
Storage Temperature
Package
Shutdown Mode
No Load
Commercial (_C_)
Industrial (_E_)
(_M_)
Plastic DIP (_P)
NSOIC (_N)
MAX
and V
CC
= 5V ± 5% unless otherwise noted.
PLH
IN
IN
= 12V
= -7V
-t
PHL
I
+4.75
MIN.
-0.2
-0.4
3.5
-40
-40
-65
12
10
20
20
50
7
0
SP481E Low Power Half-Duplex RS485 Transceivers
TYP.
200
900
300
300
600
20
15
45
45
13
45
45
45
45
40
40
MAX.
+5.25
+125
+150
1000
1000
+0.2
+0.4
+1.0
3
-0.8
100
100
600
100
100
+70
+85
0.4
±1
95
70
70
70
70
10
UNITS
Volts
Volts
mV
Volts
Volts
µA
kΩ
mA
mA
mA
Mbps
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Volts
µA
µA
µA
°C
°C
°C
°C
ELECTRICAL CHARACTERISTICS
CONDITIONS
-7V ≤ V
-7V ≤ V
V
I
I
0.4V ≤ V
-7V ≤ V
DE = 0V, V
DE = 0V, V
0V ≤ V
t
C
t
C
R
Figures 3 & 7
C
C
C
C
RE = 5V, DE = 0V
C
C
C
C
RE, DI = 0V or V
RE = 0V, DI = 0V or 5V; DE = 0V
DE = 0V, RE=V
RE = 0V, DE = 0V
O
O
PLH
PHL
CM
L
L
L1
L1
DIFF
RL
RL
RL
RL
L
L
= -4mA, V
= +4mA, V
= 100pF; See Figures 4 & 6; S
= 100pF; See Figures 4 & 6; S
= 15pF; See Figures 2 & 8; S
= 15pF; See Figures 2 & 8; S
; R
; R
= C
= C
= 15pF; Figures 2 & 8; S
= 15pF; Figures 2 & 8; S
= 15pF; Figures 2 & 8; S
= 15pF; Figures 2 & 8; S
= 0V
= 54Ω; C
DIFF
DIFF
O
CM
CM
CM
L2
L2
≤ V
O
= 100pF; Figures 3 & 7
=
≤ 2.4V; RE = 5V
≤ +12V
≤ +12V
≤ +12V
= 54Ω,
= 54Ω,
100pF; Figures 3 & 7
CC
CC
CC
© 2007 Sipex Corporation
ID
ID
= 0V or 5.25V, V
= 0V or 5.25V, V
L1
CC
= +200mV
CC
= -200mV
= C
; DE = V
L2
= 100pF;
CC
1
2
1
2
2
1
IN
IN
closed
closed
closed
closed
2
1
closed
closed
closed
closed
= 12V
= -7V