參數(shù)資料
型號(hào)： SP481ECP-L
廠(chǎng)商： Exar Corporation
文件頁(yè)數(shù)： 4/10頁(yè)
文件大?。?/td> 0K
描述： IC TXRX RS484 HALF DUPLEX 8PDIP
產(chǎn)品變化通告： Interface Product Discontinuation 10/May/2011
標(biāo)準(zhǔn)包裝： 50
類(lèi)型： 收發(fā)器
驅(qū)動(dòng)器/接收器數(shù)： 1/1
規(guī)程： RS485
電源電壓： 5V
安裝類(lèi)型： 通孔
封裝/外殼： 8-DIP（0.300"，7.62mm）
供應(yīng)商設(shè)備封裝： 8-PDIP
包裝： 管件
3
Exar Corporation 48720 Kato Road, Fremont CA, 94538 50-668-707 www.exar.com
SP48E,485E_04_05243
PARAMETERS
MIN.
TYP.
MAX.
UNITS CONDITIONS
SP481E/SP485E 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 = 100pF, see Figures 4 and 6,
S
2 closed
Driver Disable Time from Low
40
70
ns
C
L = 100pF, see Figures 4 and 6,
S
closed
SP481E/SP485E RECEIVER
DC Characteristics
Differential Input Threshold
-0.2
+0.2
Volts
-7V ≤ V
CM ≤ +12V
Differential Input Threshold
(SP485EMN ONLY)
-0.4
+0.4
Volts
-7V ≤ V
CM ≤ +12V
Input Hysteresis
20
mV
V
CM = 0V
Output Voltage High
3.5
Volts
I
O = -4mA, VID = +200mV
Output Voltage Low
0.4
Volts
I
O = +4mA, VID = +200mV
Three-State ( High Impedance)
Output Current
+/-
A
0.4V ≤ V
O ≤ 2.4V; RE = 5V
Input Resistance
2
5
k
-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
7
95
mA
0V ≤ V
O ≤ VCC
SP481E/SP485E RECEIVER
AC Characteristics
Max. Transmission Rate
0
Mbps RE = 0V, DE = 0V
Receiver Input to Output
20
45
00
ns
t
PLH ; See Figures 3 & 7, RDIFF =
54, C
L = CL2 = 00pF
Receiver Input to Output
20
45
00
ns
t
PHL ; See Figures 3 & 7, RDIFF =
54, C
L = CL2 = 00pF
Differential Receiver Skew
|t
PHL - tPLH|
3
ns
R
DIFF = 54, CL = CL2 = 100pF, see
Figures 3 and 7
Receiver Enable to Output Low
45
70
ns
C
RL = 15pF, Figures 2 & 8; S
Closed
Receiver Enable to Output High
45
70
ns
C
RL = 15pF, Figures 2 & 8; S2
Closed
Receiver Disable from LOW
45
70
ns
C
RL = 15pF, Figures 2 & 8; S
Closed
Receiver Disable from High
45
70
ns
C
RL = 15pF, Figures 2 & 8; S2
Closed
ELECTRICAL CHARACTERISTICS
T
MIN to TMAX and VCC = +5.0V +/-5% unless otherwise noted.
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參數(shù)描述
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