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參數(shù)資料
| 型號： | ISL83088EIUZ-T |
| 廠商： | Intersil |
| 文件頁數(shù)： | 2/19頁 |
| 文件大?。?/td> | 0K |
| 描述： | TXRX ESD RS-485/422 5V 8-MSOP |
| 產(chǎn)品培訓(xùn)模塊： | Solutions for Industrial Control Applications |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 類型： | 收發(fā)器 |
| 驅(qū)動器/接收器數(shù)： | 1/1 |
| 規(guī)程： | RS422，RS485 |
| 電源電壓： | 4.5 V ~ 5.5 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-TSSOP，8-MSOP（0.118"，3.00mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 8-MSOP |
| 包裝： | 標(biāo)準(zhǔn)包裝 |
| 其它名稱： | ISL83088EIUZ-TDKR |
10
FN6085.9
April 22, 2008
Application Information
RS-485 and RS-422 are differential (balanced) data
transmission standards for use in long haul or noisy
environments. RS-422 is a subset of RS-485, so RS-485
transceivers are also RS-422 compliant. RS-422 is a
point-to-multipoint (multidrop) standard, which allows only
one driver and up to 10 (assuming one unit load devices)
receivers on each bus. RS-485 is a true multipoint standard,
which allows up to 32 one unit load devices (any
combination of drivers and receivers) on each bus. To allow
for multipoint operation, the RS-485 specification requires
that drivers must handle bus contention without sustaining
any damage.
FIGURE 4A. TEST CIRCUIT
FIGURE 4B. MEASUREMENT POINTS
FIGURE 4. DRIVER DATA RATE
FIGURE 5A. TEST CIRCUIT
FIGURE 5B. MEASUREMENT POINTS
FIGURE 5. RECEIVER PROPAGATION DELAY AND DATA RATE
FIGURE 6A. TEST CIRCUIT
FIGURE 6B. MEASUREMENT POINTS
FIGURE 6. RECEIVER ENABLE AND DISABLE TIMES (DOES NOT APPLY TO THE ISL83084E)
Test Circuits and Waveforms (Continued)
D
DE
DI
VCC
SIGNAL
GENERATOR
Z
Y
CD
VOD
+
-
60
Ω
3V
0V
DIFF OUT (Y - Z)
+VOD
-VOD
DI
0V
SIGNAL
GENERATOR
R
RO
RE
A
B
0V
15pF
RO
+1.5V
-1.5V
tPLH
0V
VCC
0V
1.5V
tPHL
A
1k
Ω
VCC
GND
SW
PARAMETER
DE
A
SW
tHZ
0
+1.5V
GND
tLZ
0
-1.5V
VCC
0
+1.5V
GND
0
-1.5V
VCC
0
+1.5V
GND
0
-1.5V
VCC
SIGNAL
GENERATOR
R
RO
RE
A
B
GND
15pF
RO
3V
0V
1.5V
VOH
0V
1.5V
VOH - 0.5V
tHZ
RO
VCC
VOL
1.5V
VOL + 0.5V
tLZ
RE
OUTPUT HIGH
OUTPUT LOW
tZL, tZL(SHDN)
tZH, tZH(SHDN)
NOTE 10
NOTES 9, 12
ISL83080E, ISL83082E, ISL83083E, ISL83084E, ISL83085E, ISL83086E, ISL83088E
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