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參數(shù)資料
| 型號： | SP490ECP |
| 英文描述： | Enhanced Full Duplex RS-485 Transceivers |
| 中文描述： | 增強型全雙工RS - 485接口收發(fā)器 |
| 文件頁數(shù)： | 6/12頁 |
| 文件大?。?/td> | 109K |
| 代理商： | SP490ECP |
SP490EDS/14
SP490E Enhanced Full Duplex RS-485 Transceivers
Copyright 2000 Sipex Corporation
6
SPECIFICATIONS
(continued)
T
MIN
to T
MAX
and V
CC
= 5V
±
5% unless otherwise noted.
PARAMETERS
SP491E
RECEIVER
DC Characteristics
Differential Input Threshold
Input Hysteresis
Output Voltage HIGH
Output Voltage LOW
Three State (high impedance)
Output Current
Input Resistance
Input Current (A, B); V
IN
= 12V
Input Current (A, B); V
IN
= -7V
Short-Circuit Current
SP491E
RECEIVER
AC Characteristics
Maximum Data Rate
Receiver Input to Output
MIN.
TYP.
MAX.
UNITS
CONDITIONS
-0.2
+0.2
Volts
mV
Volts
Volts
-7V
≤
V
CM
≤
12V
V
CM
= 0V
I
O
ID
= +200mV
I
O
= +4mA, V
ID
= -200mV
70
3.5
0.4
±
1
μ
A
k
mA
mA
mA
0.4V
≤
V
O
≤
2.4V; REB = 5V
-7V
≤
V
≤
12V
DE = 0V, V
CC
= 0V or 5.25V, V
IN
= 12V
DE = 0V, V
CC
= 0V or 5.25V, V
IN
= -7V
0V
≤
V
O
≤
V
CC
12
15
±
1.0
-0.8
85
10
20
Mbps
ns
REB = 0V, DE = 5V
t
PLH
; R
DIFF
= 54
,
C
L1
= C
L2
t
PHL
; R
DIFF
= 54
,
C
L1
= C
R
= 54
; C
L1
= C
L2
= 100pF;
Figures 3 & 7
C
RL
= 15pF; Figures 2 and 8; S
1
closed
C
RL
= 15pF; Figures 2 and 8; S
2
closed
C
RL
= 15pF; Figures 2 and 8; S
1
closed
C
RL
= 15pF; Figures 2 and 8; S
2
closed
45
100
=
100pF;
Figures 3 & 7
Receiver Input to Output
20
45
100
ns
=
100pF;
Figures 3 & 7
Diff. Receiver Skew It
PLH
-t
PHL
I
13
ns
Receiver Enable to Output LOW
Receiver Enable to Output HIGH
Receiver Disable from LOW
Receiver Disable from HIGH
POWER REQUIREMENTS
Supply Voltage
Supply Current
SP491E ENVIRONMENTAL
AND MECHANICAL
Operating Temperature
Commercial (_C_)
Industrial (_E_)
Storage Temperature
Package
Plastic DIP (_P)
NSOIC (_N)
45
45
45
45
70
70
70
70
ns
ns
ns
ns
+4.75
+5.25
Volts
μ
A
900
REB, D = 0V or V
CC
; DE = V
CC
+3V
0V
RE
5V
R
0V
1.5V
1.5V
t
ZL
t
ZH
f = 1MHz; t
R
< 10ns; t
F
< 10ns
R
1.5V
1.5V
t
LZ
t
HZ
0.5V
0.5V
Output normally LOW
Output normally HIGH
V
IL
V
IH
Figure 8. Receiver Enable and Disable Times
0
+70
+85
+150
°
C
°
C
°
C
-40
-65
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SP490EEN | Enhanced Full Duplex RS-485 Transceivers |
| SP490EEP | Enhanced Full Duplex RS-485 Transceivers |
| SP491E | Enhanced Full Duplex RS-485 Transceivers |
| SP491ECN | Enhanced Full Duplex RS-485 Transceivers |
| SP491ECP | Enhanced Full Duplex RS-485 Transceivers |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SP490ECP-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 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| SP490EEN | 制造商:Exar Corporation 功能描述: |
| SP490EEN-L | 功能描述:RS-422/RS-485 接口 IC RS485 10000 kbps 5V temp -40C to 85C RoHS:否 制造商:Maxim Integrated 數(shù)據(jù)速率:1136 Kbps 工作電源電壓:3 V to 5.5 V 電源電流:5.9 mA 工作溫度范圍:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-28 封裝:Tube |
| SP490EEN-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 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| SP490EEP | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Enhanced Full Duplex RS-485 Transceivers |
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