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參數(shù)資料
| 型號(hào)： | SP490E |
| 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(yè)數(shù)： | 4/12頁(yè) |
| 文件大?。?/td> | 109K |
| 代理商： | SP490E |
SP490EDS/14
SP490E Enhanced Full Duplex RS-485 Transceivers
Copyright 2000 Sipex Corporation
4
Figure 5. Driver Propagation Delays
+3V
0V
DE
5V
V
OL
A, B
0V
1.5V
1.5V
t
ZL
t
ZH
f = 1MHz; t
R
< 10ns; t
F
< 10ns
V
OH
A, B
2.3V
2.3V
t
LZ
t
HZ
0.5V
0.5V
Output normally LOW
Output normally HIGH
Figure 6. Driver Enable and Disable Times
Figure 7. Receiver Propagation Delays
+3V
0V
DI
Z
Y
DRIVER
OUTPUT
V
V
O
DIFFERENTIAL
OUTPUT
V
Y
+
– V
Z
0V
1.5V
1.5V
t
PLH
–
t
R
t
F
f = 1MHz; t
R
< 10ns; t
F
< 10ns
V
O
1/2V
O
1/2V
O
t
PHL
t
DPLH
t
DPHL
t
SKEW =
|
t
DPLH -
t
DPHL
|
V
OH
V
OL
R
1.5V
1.5V
t
PHL
f = 1MHz; t
R
< 10ns; t
F
< 10ns
OUTPUT
V
0D2
+
V
0D2
–
Y – Z
0V
0V
t
PLH
INPUT
t
SKEW =
|
t
PHL -
t
PLH
|
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SP490ECN | Enhanced Full Duplex RS-485 Transceivers |
| SP490ECP | Enhanced Full Duplex RS-485 Transceivers |
| SP490EEN | Enhanced Full Duplex RS-485 Transceivers |
| SP490EEP | Enhanced Full Duplex RS-485 Transceivers |
| SP491E | Enhanced Full Duplex RS-485 Transceivers |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SP490ECN | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Enhanced Full Duplex RS-485 Transceivers |
| SP490ECN/TR | 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述: |
| SP490ECN-L | 功能描述:RS-485接口IC RS485 10000 kbps 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 |
| SP490ECN-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 |
| SP490ECP | 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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