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SP485 датащи(PDF) 3 Page - Exar Corporation

номер детали SP485
подробное описание детали  Low Power Half-Duplex RS-485 Transceivers
PDF  11 Pages
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производитель  EXAR [Exar Corporation]
домашняя страница  http://www.exar.com
Logo EXAR - Exar Corporation

SP485 датащи(HTML) 3 Page - Exar Corporation

  SP485 Datasheet HTML 1Page - Exar Corporation SP485 Datasheet HTML 2Page - Exar Corporation SP485 Datasheet HTML 3Page - Exar Corporation SP485 Datasheet HTML 4Page - Exar Corporation SP485 Datasheet HTML 5Page - Exar Corporation SP485 Datasheet HTML 6Page - Exar Corporation SP485 Datasheet HTML 7Page - Exar Corporation SP485 Datasheet HTML 8Page - Exar Corporation SP485 Datasheet HTML 9Page - Exar Corporation Next Button
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Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 50-668-707 • www.exar.com
SP483_SP485_00_0740
PARAMETERS
MIN.
TYP.
MAX.
UNITS CONDITIONS
SP485 DRIVER (continued)
AC Characteristics
Driver Enable to Output High
40
70
ns
C
L = 100pF, see figures 4 and 6,
S
2 closed
Driver Enable to Output Low
40
70
ns
C
L = 100pF, see figures 4 and 6,
S
 closed
Driver Disable Time from High
40
70
ns
C
L = 15pF, see figures 2 and 8,
S
2 closed
Driver Disable Time from Low
40
70
ns
C
L = 15pF, see figures 2 and 8,
S
 closed
SP483/SP485 RECEIVER
DC Characteristics
Differential Input Threshold
-0.2
+0.2
Volts
-7V ≤ V
CM ≤ +12V
Input Hysteresis
0
mV
V
CM = 0V
Output Voltage High
2.4
5
Volts
I
O = -4mA, VID = +200mV
Output Voltage Low
0.0
0.4
Volts
I
O = +4mA, VID = -200mV
Three-State ( High Impedance)
Output Current
+/-
µA
0.4V ≤ V
O ≤ 2.4V; RE = 5V
Input Resistance
5
kΩ
-7V ≤ V
CM ≤ +12V
Input Current (A, B); V
IN = 2V
+.0
mA
DE = 0V, V
CC = 0V or 5.25V,
V
IN = 2V
Input Current (A, B); V
IN = -7V
-0.8
mA
DE = 0V, V
CC = 0V or 5.25V,
V
IN = -7V
Short-Circuit Current
95
mA
0V ≤ V
CM ≤ VCC
SP485 RECEIVER
AC Characteristics
Maximum Data Rate
5
Mbps RE = 0V, DE = 0V
Receiver Input to Output
60
90
200
ns
t
PLH ; Figures 3 and 7,
R
DIFF = 54Ω, CL = CL2 = 00pF
Receiver Input to Output
60
90
200
ns
t
PHL ; Figures 3 and 7,
R
DIFF = 54Ω, CL = CL2 = 00pF
Differential Receiver Skew
|t
PHL - tPLH|
3
ns
R
DIFF = 54Ω, CL = CL2 = 00pF,
Figures 3 and 7
Receiver Enable to Output Low
20
50
ns
C
RL = 5pF, Figures 2 and 8;
S
 Closed
Receiver Enable to Output High
20
50
ns
C
RL = 5pF, Figures 2 and 8;
S
2 Closed
Receiver Disable from LOW
20
50
ns
C
RL = 5pF, Figures 2 and 8;
S
 Closed
Receiver Disable from High
20
50
ns
C
RL = 5pF, Figures 2 and 8;
S
2 Closed
ELECTRICAL CHARACTERISTICS
T
MIN to TMAX and VCC = 5V +/-5% unless otherwise noted.



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