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參數(shù)資料
| 型號： | SP481EEP-L |
| 廠商： | Exar Corporation |
| 文件頁數(shù)： | 6/10頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC TXRX RS484 HALF DUPLEX 8PDIP |
| 產(chǎn)品變化通告： | Interface Product Discontinuation 10/May/2011 |
| 標(biāo)準(zhǔn)包裝： | 50 |
| 類型： | 收發(fā)器 |
| 驅(qū)動器/接收器數(shù)： | 1/1 |
| 規(guī)程： | RS485 |
| 電源電壓： | 5V |
| 安裝類型： | 通孔 |
| 封裝/外殼： | 8-DIP（0.300"，7.62mm） |
| 供應(yīng)商設(shè)備封裝： | 8-PDIP |
| 包裝： | 管件 |
5
Exar Corporation 48720 Kato Road, Fremont CA, 94538 50-668-707 www.exar.com
SP48E,485E_04_05243
PIN FUNCTION
TEST CIRCUITS
A
B
R
VOD
VOC
Figure 1. RS-485 Driver DC Test Load Circuit
C
L1
15pF
RO
A
B
A
B
DI
C
L2
R
L
Figure 3. RS-485 Driver/Receiver Timing Test
500
CL
Output
Under
Test
S1
S2
VCC
Figure 4. Driver Timing Test Load #2 Circuit
Figure 2. Receiver Timing Test Load Circuit
1k
CRL
Receiver
Output
S1
S2
Test Point
VCC
Pin - 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
Figure 5. Driver Propagation Delays
+3V
0V
DRIVER INPUT
A
B
DRIVER
OUTPUT
VO+
DIFFERENTIAL
OUTPUT
VA –VB
0V
VO–
1.5V
tPLH
tF
tR
tR ≤10ns; tF ≤10ns
VO 1/2VO
1/2VO
tPHL
t SKEW = |t DPLH- tDPHL|
tDPLH
tDPHL
f ≥ 1MHz;
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SP483EEP-L | IC TXRX RS485 HALF DUPLEX 8PDIP |
| SP483ES-L | IC TXRX RS485 HALF DUPLEX 8PDIP |
| SP485REN-L/TR | IC TXRX RS485 HALF DUPLEX 8NSOIC |
| SP487ES-L | IC DVR RS485/RS422 QUAD 16PDIP |
| SP488ET-L/TR | IC RCVR RS485/RS422 QUAD 16SOIC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SP481EN | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Low Power Half-Duplex RS-485 Transceivers |
| SP481EN/TR | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Low Power Half-Duplex RS-485 Transceivers |
| SP481ES | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Low Power Half-Duplex RS-485 Transceivers |
| SP481R | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:High-Fanout RS-485 Transceiver |
| SP481RCN | 制造商:Exar 功能描述:High-Fanout Half-Duplex RS-485 Transceiver 制造商:Other 功能描述:High-Fanout Half-Duplex RS-485 Transceiver |
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