參數(shù)資料
型號(hào)： SP491E
英文描述： Enhanced Full Duplex RS-485 Transceivers
中文描述： 增強(qiáng)型全雙工RS - 485接口收發(fā)器
文件頁數(shù)： 5/12頁
文件大?。?/td> 109K
代理商： SP491E
5
SP490EDS/14
SP490E Enhanced Full Duplex RS-485 Transceivers
Copyright 2000 Sipex Corporation
ABSOLUTE MAXIMUM RATINGS
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
....................................................................................................+7V
Input Voltages
Logic...................................................-0.5V to (V
CC
+0.5V)
Drivers................................................-0.5V to (V
+0.5V)
Receivers..................................................................
±
14V
Output Voltages
Logic...................................................-0.5V to (V
+0.5V)
Drivers......................................................................
±
14V
Receivers...........................................-0.5V to (V
+0.5V)
Storage Temperature......................................................-65C to +150
Power Dissipation.....................................................................1000mW
SPECIFICATIONS
T
MIN
to T
MAX
and V
CC
= 5V
±
5% unless otherwise noted.
PARAMETERS
SP491E DRIVER
DC Characteristics
Differential Output Voltage
Differential Output Voltage
MIN.
TYP.
MAX.
UNITS
CONDITIONS
GND
2
V
CC
V
CC
Volts
Volts
Unloaded; R =
∞
; see Figure 1
With Load; R = 50
; (RS-422);
see Figure 1
With Load; R = 27
; (RS-485);
see Figure 1
Differential Output Voltage
Change in Magnitude of Driver
Differential Output Voltage for
Complimentary States
Driver Common-Mode
Output Voltage
Input HIGH Voltage
Input LOW Voltage
Input Current
Driver Short-Circuit Current
V
OUT
= HIGH
V
OUT
= LOW
1.5
V
CC
Volts
0.2
Volts
R = 27
or R = 50
; see Figure 1
3
Volts
Volts
Volts
μ
A
R = 27
or R = 50
; see Figure 1
Applies to D, REB, DE
Applies to D, REB, DE
Applies to D, REB, DE
2.0
0.8
±
10
250
250
mA
mA
-7V
≤
V
O
≤
10V
-7V
≤
V
O
≤
10V
SP491E DRIVER
AC Characteristics
Maximum Data Rate
Driver Input to Output
10
20
Mbps
ns
R
DIFF
= 54
, C
L1
= C
L2
= 100pF
t
; R
= 54
, C
= C
L2
= 100pF;
see Figures 3 and 5
t
; R
= 54
, C
= C
L2
= 100pF;
see Figures 3 and 5
see Figures 3 and 5,
t
= | t
- t
|
From 10% to 90%; R
= 54
,
C
L1
= C
L2
= 100pF;
see Figures 3 and 5
C
= C
= 100pF; see Figures
4 and 6; S
closed
C
= C
= 100pF; see Figures
4 and 6; S
closed
C
= C
= 15pF; see Figures
4 and 6; S
closed
C
= C
= 15pF; see Figures
4 and 6; S
2
closed
30
60
Driver Input to Output
20
30
60
ns
Driver Skew
5
10
ns
Driver Rise or Fall Time
3
15
40
ns
Driver Enable to Output HIGH
40
70
ns
Driver Enable to Output LOW
40
70
ns
Driver Disable Time from LOW
40
70
ns
Driver Disable Time from HIGH
40
70
ns
相關(guān)PDF資料
PDF描述
SP491ECN Enhanced Full Duplex RS-485 Transceivers
SP491ECP Enhanced Full Duplex RS-485 Transceivers
SP491EEN Enhanced Full Duplex RS-485 Transceivers
SP491EEP Enhanced Full Duplex RS-485 Transceivers
SP490 Full Duplex RS-485 Transceivers(全雙工RS-485收發(fā)器（不帶收發(fā)使能）)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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
SP491ECN-L 功能描述:RS-485接口IC RS485 10000 kbps 5V temp 0C to 70C 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
SP491ECN-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(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
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
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