參數(shù)資料
型號(hào)： SP1485EEN
英文描述： Enhanced Low Power Half-Duplex RS-485 Transceivers
中文描述： 增強(qiáng)型低功耗半雙工RS - 485收發(fā)器
文件頁數(shù)： 4/11頁
文件大小： 78K
代理商： SP1485EEN
Rev:C Date: 02/26/04
SP1485E Low Power Half-Duplex RS485 Transceivers
4
Copyright 2004 Sipex Corporation
PIN FUNCTION
Pin 1 – RO – Receiver Output.
Pin 2 – RE – Receiver Output Enable Active LOW.
Pin 3 – DE – Driver Output Enable Active HIGH.
Pin 4 – DI – Driver Input.
Pin 5 – GND – Ground Connection.
Pin 6 – A – Driver Output/Receiver Input
Non-inverting.
Pin 7 – B – Driver Output/Receiver Input Inverting.
Pin 8 – Vcc – Positive Supply 4.75V<Vcc< 5.25V.
SP1485E
Pinout (Top View)
RO 1
RE 2
DE 3
DI 4
8 V
CC
7 B
6 A
5 GND
D
R
SP485
Top View
Figure 5. Driver Propagation Delays
A
V
OD
V
OC
B
R
R
Figure 1. RS-485 Driver DC Test Load Circuit
Figure 2. Receiver Timing Test Load Circuit
Figure 3. RS-485 Driver/Receiver Timing Test Circuit
Figure 4. RS-485 Driver Timing Test Load #2 Circuit
C
RL
1k
S
2
S
1
V
CC
1k
Test Point
Receiver
Output
B
A
DI
B
A
C
L1
C
L2
R
DIFF
RO
15pF
S
2
S
1
V
CC
C
L
500
Output
Under
Test
+3V
0V
DI
B
A
OUTPUT
V
O
V
O
DRIVER
OUTPUT
V
A
– V
B
+
DIFFERENTIAL
0V
1.5V
1.5V
t
PLH
–
t
R
t
F
f = 1MHz; t
R
< 1.0ns; t
F
< 1.0ns
V
O
1/2V
O
1/2V
O
t
PHL
t
DPLH
t
DPHL
t
SKEW =
|
t
DPLH -
t
DPHL
|
相關(guān)PDF資料
PDF描述
SP1485EEP Enhanced Low Power Half-Duplex RS-485 Transceivers
SP1486E +5V, 20Mbps PROFIBUS RS485/RS422 Transceivers Advanced Failsafe, 1/8th Unit Load, 【15kV ESD-Protected
SP1486EEN-L +5V, 20Mbps PROFIBUS RS485/RS422 Transceivers Advanced Failsafe, 1/8th Unit Load, 【15kV ESD-Protected
SP1486EMN-L +5V, 20Mbps PROFIBUS RS485/RS422 Transceivers Advanced Failsafe, 1/8th Unit Load, 【15kV ESD-Protected
SP1490E Full Duplex RS-485 Transceivers
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SP1485EEN-L 功能描述:RS-485接口IC RS485 no shutdown 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
SP1485EEN-L/TR 功能描述:RS-485接口IC 20MBPS HALF-DUPLEX RS-485 -40-85C 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
SP1485EEP 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Enhanced Low Power Half-Duplex RS-485 Transceivers
SP1485EEP-L 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述:
SP1485EMN 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Enhanced Low Power Half-Duplex RS-485 Transceivers
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