參數(shù)資料
型號： SP491CN-L
廠商： Exar Corporation
文件頁數(shù)： 3/10頁
文件大小： 0K
描述： IC TXRX RS485 FULL DUPLX 14NSOIC
標準包裝： 56
類型： 收發(fā)器
驅動器/接收器數(shù)： 1/1
規(guī)程： RS485
電源電壓： 5V
安裝類型： 表面貼裝
封裝/外殼： 14-SOIC（0.154"，3.90mm 寬）
供應商設備封裝： 14-SOIC（窄型）
包裝： 管件
其它名稱： 1016-1185-5
2
Exar Corporation 48720 Kato Road, Fremont CA, 94538 (50)668-707 www.exar.com
SP490,49_0_0627
ABSOLUTEMAXIMUMRATINGS
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
CC....................................................................................................+7V
Input Voltages
Drivers................................................-0.5V to (V
CC+0.5V)
Receivers..................................................................±4V
Output Voltages
Drivers......................................................................±4V
Receivers...........................................-0.5V to (V
CC+0.5V)
Storage Temperature....................................................-65C to +150
Power Dissipation.....................................................................000mW
PARAMETERSMIN.TYP. MAX.UNITS CONDITIONS
SP490DRIVER
DCCharacteristics
Differential Output Voltage
GND
V
CC
Volts
Unloaded; R = ∞ ; see figure 1
Differential Output Voltage
2
V
CC
Volts
With Load; R = 50; (RS422);
see figure 1
Differential Output Voltage
.5
V
CC
Volts
With Load; R = 27; (RS485); see
figure 1
Change in Magnitude of Driver
Differential Output Voltage for
Complimentary States
0.2
Volts
R = 27 or R = 50; see figure 1
Driver Common-Mode
Output Voltage
3
Volts
R = 27 or R = 50; see figure 1
Input High Voltage
2.0
Volts
Applies to D
Input Low Voltage
0.8
Volts
Applies to D
Input Current
±0
A
Applies to D
Driver Short-Circuit Current
V
OUT = HIGH
250
mA
-7V ≤ V
O ≤ +12V
V
OUT = LOW
250
mA
-7V ≤ V
O ≤ +12V
SP490DRIVER
ACCharacteristics
Maximum Data Rate
5
Mbps
Driver Input to Output
30
60
ns
t
PLH; RDIFF = 54, CL = CL2 = 00pF;
see figures 3 and 6
Driver Input to Output
30
60
ns
t
PHL; RDIFF = 54, CL = CL2 = 00pF;
see figures 3 and 6
Driver Skew
5
ns
see figures 3 and 6,
t
SKEW = | tDPLH - tDPHL |
Driver Rise or Fall Time
5
40
ns
From 0% to 90%; R
DIFF = 54,
C
L = CL2 = 00pF; see figures 3 and 6
SP490RECEIVER
DCCharacteristics
Differential Input Threshold
-0.2
+0.2
Volts
-7V ≤ V
CM ≤ 12V
Input Hysteresis
70
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
Input Resistance
12
15
k
-7V ≤ V
CM ≤ 12V
Input Current (A, B); V
IN = 2V
±.0
mA
V
IN = 2V
Input Current (A, B); V
IN = -7V
-0.8
mA
V
IN = -7V
Short-Circuit Current
85
mA
0V ≤ V
O ≤ VCC
ELECTRICALCHARACTERISTICS
T
MINtoTMAXandVCC=5V±5%unlessotherwisenoted.
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相關代理商/技術參數(shù)
參數(shù)描述
SP491CN-L/TR 功能描述:RS-485接口IC Full Duplex RS-485 s RoHS:否 制造商:Texas Instruments 數(shù)據速率:250 Kbps 工作電源電壓:3.3 V 電源電流:750 uA 工作溫度范圍:- 40 C to + 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube
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SP491CS-L 功能描述:RS-485接口IC RS485 5000 kbps temp 0C to 70C RoHS:否 制造商:Texas Instruments 數(shù)據速率:250 Kbps 工作電源電壓:3.3 V 電源電流:750 uA 工作溫度范圍:- 40 C to + 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube
SP491E 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Enhanced Full Duplex RS-485 Transceivers
SP491ECN 制造商:Exar 功能描述:Enhanced Full Duplex RS-485 Transceivers 制造商:Other 功能描述:Enhanced Full Duplex RS-485 Transceivers
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