參數(shù)資料
型號: ISL81387IBZ
廠商: Intersil
文件頁數(shù): 22/27頁
文件大?。?/td> 0K
描述: TXRX ESD RS-485/422 2PORT 20SOIC
產(chǎn)品培訓(xùn)模塊: Solutions for Industrial Control Applications
標(biāo)準(zhǔn)包裝: 380
類型: 收發(fā)器
驅(qū)動器/接收器數(shù): 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: 20-SOIC(0.295",7.50mm 寬)
供應(yīng)商設(shè)備封裝: 20-SOIC W
包裝: 管件
4
FN6201.3
November 21, 2007
TABLE 3. ISL41387 FUNCTION TABLE
INPUTS
RECEIVER
OUTPUTS
DRIVER
OUTPUTS
DRIVER
DATA
RATE
(Mbps)
CHARGE
PUMPS
(Note 3)
MODE
485/232
ON
RXEN
and/or
RXEN
DEN
SLEW
SPB
RA
RB
YZ
0
1
1 and 0
0
N.A.
High-Z
-
ON
RS-232
0
1
1 and 0
1
N.A.
High-Z
ON
0.46
ON
RS-232
0
1
0 or 1
0
N.A.
ON
High-Z
-
ON
RS-232
0
1
0 or 1
1
N.A.
ON
0.46
ON
RS-232
0
1 and 0
1
N.A.
High-Z
ON
High-Z
0.46
ON
RS-232
0
0 or 1
0
N.A.
High-Z
ON
High-Z
0.46
ON
RS-232
0
0 or 1
1
N.A.
ON
0.46
ON
RS-232 (Note 4)
X
0
1 and 0
0
X
High-Z
-
OFF
Shutdown
1
1 and 0
0
X
High-Z
-
OFF
RS-485
1
X
1 and 0
1
0
1/0
High-Z
ON
0.46/0.115
OFF
RS-485
1
X
1 and 0
1
X
High-Z
ON
20
OFF
RS-485
1
X
0 or 1
0
X
ON
High-Z
-
OFF
RS-485
1
0 or 1
1
0
1/0
ON
High-Z
ON
0.46/0.115
OFF
RS-485
1
0 or 1
1
X
ON
High-Z
ON
20
OFF
RS-485
1
0
0 or 1
1
0
1/0
ON
High-Z
ON
0.46/0.115
OFF
RS-485 (Note 4)
1
0
0 or 1
1
X
ON
High-Z
ON
20
OFF
RS-485 (Note 4)
NOTES:
3. Charge pumps are on if in RS-232 mode and ON or DEN or RXEN is high, or RXEN is low.
4. Loopback is enabled when ON = 0, and DEN = 1, and (RXEN = 1 or RXEN = 0).
ISL41387 Truth Tables
RS-232 TRANSMITTING MODE
INPUTS (ON = 1)
OUTPUTS
485/232
DEN
DY
DZ
YZ
0
1
0011
0
1
0110
0
1
1001
0
1
1100
0
X
High-Z
RS-232 RECEIVING MODE
INPUTS (ON = 1)
OUTPUT
485/232 RXEN and/or RXEN
A
B
RA
RB
00 or 1
0
1
00 or 1
0
1
0
00 or 1
1
0
1
00 or 1
1
0
0 or 1
Open
1
0
1 and 0
X
High-Z High-Z
RS-485 TRANSMITTING MODE
INPUTS (ON = 1)
OUTPUTS
DATA
485/232
DEN
SLEW
SPB
DY
YZ
Mbps
1
0
0/1
1/0
0/1
0.115
1
0
1
0/1
1/0
0/1
0.460
1
X
0/1
1/0
0/1
20
1
0
X
High-Z High-Z
-
RS-485 RECEIVING MODE
INPUTS (ON = 1)
OUTPUT
485/232 RXEN and/or RXEN
B-A
RA
RB
10 or 1
≥ -40mV
1
High-Z
10 or 1
≤ -200mV
0
High-Z
1
0 or 1
Open or Shorted
together
1
High-Z
1
1 and 0
X
High-Z High-Z
ISL81387, ISL41387
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