MINtoT
參數(shù)資料
型號(hào)： SP491ECN-L/TR
廠商： Exar Corporation
文件頁數(shù)： 9/12頁
文件大小： 0K
描述： IC TXRX RS485 FULL DUPLX 14NSOIC
標(biāo)準(zhǔn)包裝： 2,500
類型： 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
安裝類型： 表面貼裝
封裝/外殼： 14-SOIC（0.154"，3.90mm 寬）
供應(yīng)商設(shè)備封裝： 14-SOIC（窄型）
包裝： 帶卷 (TR)
其它名稱： SP491ECN-L/TR-ND
6
Exar Corporation 48720 Kato Road, Fremont CA, 94538 (50)668-707 www.exar.com
SP490E,49E_0_05243
T
MINtoTMAXandVCC=5V±5%unlessotherwisenoted.
PARAMETERS
MIN.
TYP.
MAX. UNITS CONDITIONS
SP491ERECEIVER
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
Three State (high impedance)
Output Current
±1
A
0.4V ≤ V
O ≤ 2.4V; RE = 5V
Input Resistance
12
15
k
-7V ≤ V
CM ≤ 12V
Input Current (A, B); V
IN = 2V
±.0
mA
DE = 0V, V
CC = 0V or 5.25V, VIN = 2V
Input Current (A, B); V
IN = -7V
-0.8
mA
DE = 0V, V
CC = 0V or 5.25V, VIN = -7V
Short-Circuit Current
85
mA
0V ≤ V
O ≤ VCC
SP491ERECEIVER
ACCharacteristics
Maximum Data Rate
0
Mbps
RE = 0V
Receiver Input to Output
20
45
00
ns
t
PLH; RDIFF = 54,
C
L = CL2 = 00pF; Figures 3 & 7
Receiver Input to Output
20
45
00
ns
t
PHL; RDIFF = 54,
C
L = CL2
=
00pF; Figures 3 & 7
Diff. Receiver Skew It
PLH-tPHLI
3
ns
R
DIFF = 54; CL = CL2 = 00pF;
Figures 3 & 7
Receiver Enable to Output Low
45
70
ns
C
RL = 5pF; Figures 2 and 8; S closed
Receiver Enable to Output High
45
70
ns
C
RL = 5pF; Figures 2 and 8; S2 closed
Receiver Disable from Low
45
70
ns
C
RL = 5pF; Figures 2 and 8; S closed
Receiver Disable from High
45
70
ns
C
RL = 5pF; Figures 2 and 8; S2 closed
POWERREQUIREMENTS
Supply Voltage
+4.75
+5.25 Volts
Supply Current
900
A
RE, D = 0V or V
CC; DE = VCC
SP491EENVIRONMENTAL
ANDMECHANICAL
Operating Temperature
Commercial (_C_)
0
+70
°C
Industrial (_E_)
-40
+85
°C
Storage Temperature
-65
+50 °C
Package
Plastic DIP (_P)
NSOIC (_N)
Figure 8. Receiver Enable and Disable Times
ELECTRICALCHARACTERISTICS
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SP491ECP 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Enhanced Full Duplex RS-485 Transceivers
SP491ECP-L 功能描述:RS-485接口IC Full Duplex RS-485 s RoHS:否 制造商:Texas Instruments 數(shù)據(jù)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(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube
SP491EEN 制造商:Exar Corporation 功能描述:Line Transceiver, 1-Driver, 1-Receiver, 14 Pin, Plastic, SOP
SP491EEN-L 功能描述:RS-485接口IC RS485 10000 kbps 5V temp -40C to 85C RoHS:否 制造商:Texas Instruments 數(shù)據(jù)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(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube
SP491EEN-L 制造商:Exar Corporation 功能描述:IC RS-485 TRANSCEIVER 5.25V NSOIC-14
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