參數資料
型號: ISL81334IBZ
廠商: Intersil
文件頁數: 23/28頁
文件大?。?/td> 0K
描述: IC TXRX DUAL 2PORT ESD 28-SOIC
產品培訓模塊: Solutions for Industrial Control Applications
標準包裝: 520
類型: 收發(fā)器
驅動器/接收器數: 2/2
規(guī)程: RS232,RS422,RS485
電源電壓: 4.5 V ~ 5.5 V
安裝類型: 表面貼裝
封裝/外殼: 28-SOIC(0.295",7.50mm 寬)
供應商設備封裝: 28-SOIC W
包裝: 管件
4
FN6202.3
November 21, 2007
TABLE 3. ISL41334 FUNCTION TABLE
INPUTS
RECEIVER
OUTPUTS
DRIVER
OUTPUTS
CHARGE
PUMPS
(NOTE 2)
DRIVER
DATA
RATE
(Mbps)
MODE
SEL1 or 2 ON/OFF
SPA
SPB
RXEN 1
or 2
DE 1 or 2
RA
RB
YZ
0
1
X
0
N.A.
ONONON
ON
0.46
RS-232
0
1
X
1
N.A.
High-Z
ON
0.46
RS-232
X
0
X
High-Z
OFF
N.A.
Shutdown
1
X
0
ON
High-Z*
High-Z
OFF
N.A.
RS-485
1
0
1
ON
High-Z*
ON
OFF
0.46
RS-485
1
0
1
0
1
ON
High-Z*
ON
OFF
0.115
RS-485
1
0
1
ON
High-Z*
ON
OFF
20
RS-485
1
0
1
ON
High-Z*
ON
OFF
20
RS-485
1
X
1
0
High-Z
High-Z*
High-Z
OFF
N.A.
RS-485
1
0
1
High-Z
High-Z*
ON
OFF
0.46
RS-485
1
0
1
High-Z
High-Z*
ON
OFF
0.115
RS-485
1
0
1
High-Z
High-Z*
ON
OFF
20
RS-485
1
High-Z
High-Z*
ON
OFF
20
RS-485
NOTE:
2. Charge pumps are off iff SEL1 = SEL2 = 1, or if ON/OFF = 0. If ON = 1, and either port is programmed for RS-232 mode, then the charge pumps
are on.
ISL41334 Truth Tables (FOR EACH PORT)
RS-232 TRANSMITTING MODE
INPUTS
OUTPUTS
SEL1 or 2 ON/OFF
DY
DZ
YZ
0
1
0011
0
1
0110
0
1
1001
0
1
1100
0
X
High-Z
RS-232 RECEIVING MODE
INPUTS
OUTPUT
SEL1 or 2 ON/OFF
RXEN 1
or 2
A
B
RA
RB
0
1
000
1
0
1
001
1
0
1
010
0
1
0
1
011
0
1
0
Open
1
0
1
X
High-Z High-Z
0
X
High-Z High-Z
RS-485 TRANSMITTING MODE
INPUTS
OUTPUTS
DATA
RATE
SEL1
or 2
ON/
OFF
DE
1 or 2 SPA SPB
DY
YZ
Mbps
1
0
0/1
1/0
0/1
0.46
1
0
1
0/1
1/0
0/1
0.115
1
X
0/1
1/0
0/1
20
1
0
X
High-Z High-Z
N.A.
1
0
X
High-Z High-Z
N.A.
RS-485 RECEIVING MODE
INPUTS
OUTPUT
SEL1
or 2
ON/OFF
RXEN 1
or 2
B-A
RA
RB *
11
0
≥ -40mV
1
High-Z
11
0
≤ -200mV
0
High-Z
1
0
Open or Shorted
together
1
High-Z
1
X
High-Z High-Z
1
0
X
High-Z High-Z
* Internally pulled high through a 40k
Ω resistor.
ISL81334, ISL41334
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