参数资料
型号: ISL41387IRZ-T
厂商: Intersil
文件页数: 21/27页
文件大小: 0K
描述: IC TXRX DUAL PROTOCAL ESD 40-QFN
产品培训模块: Solutions for Industrial Control Applications
标准包装: 1
类型: 收发器
驱动器/接收器数: 2/2
规程: RS232,RS422,RS485
电源电压: 4.5 V ~ 5.5 V
安装类型: 表面贴装
封装/外壳: 40-VFQFN 裸露焊盘
供应商设备封装: 40-QFN 裸露焊盘(6x6)
包装: 标准包装
其它名称: ISL41387IRZ-TDKR
3
FN6201.3
November 21, 2007
TABLE 2. ISL81387 FUNCTION TABLE
INPUTS
RECEIVER
OUTPUTS
DRIVER OUTPUTS
DRIVER
SPEED
(Mbps)
CHARGE
PUMPS
(Note 1)
LOOPBACK
(Note 2)
MODE
485/232
ON
RXEN
DEN
SLEW
RA
RB
YZ
0
1
0
N.A.
High-Z
-
ON
OFF
RS-232
0
1
0
1
N.A.
High-Z
ON
0.46
ON
OFF
RS-232
0
1
0
N.A.
ON
High-Z
-
ON
OFF
RS-232
0
1
N.A.
ON
0.46
ON
OFF
RS-232
0
1
N.A.
High-Z
ON
High-Z
0.46
ON
OFF
RS-232
0
1
0
N.A.
High-Z
ON
High-Z
0.46
ON
OFF
RS-232
0
1
N.A.
ON
0.46
ON
RS-232
X
0
X
High-Z
-
OFF
Shutdown
1
0
X
High-Z
-
OFF
RS-485
1
X
0
1
1/0
High-Z
ON
20/0.46
OFF
RS-485
1
X
1
0
X
ON
High-Z
-
OFF
RS-485
1
1/0
ON
High-Z
ON
20/0.46
OFF
RS-485
1
0
1
1/0
ON
High-Z
ON
20/0.46
OFF
ON
RS-485
NOTES:
1. Charge pumps are on if in RS-232 mode and ON or DEN or RXEN are high.
2. Loopback is enabled when ON = 0, and DEN = RXEN = 1.
ISL81387 Truth Tables
RS-232 TRANSMITTING MODE
INPUTS (ON = 1)
OUTPUTS
485/232
DEN
DY
DZ
YZ
010011
010110
011001
011100
0
X
High-Z
RS-232 RECEIVING MODE
INPUTS (ON = 1)
OUTPUT
485/232
RXEN
A
B
RA
RB
010
01
1
010
11
0
011
00
1
011
10
0
1
Open
1
0
X
High-Z
RS-485 TRANSMITTING MODE
INPUTS (ON = 1)
OUTPUTS
485/232
DEN
DY
SLEW
Y
Z
DATA RATE
(Mbps)
11
0
1
0
20
11
1
0
1
20
11
0
1
0
0.46
11
1
0
1
0.46
1
0
X
High-Z High-Z
-
RS-485 RECEIVING MODE
INPUTS (ON = 1)
OUTPUT
485/232
RXEN
B-A
RA
RB
11
≥ -40mV
1
High-Z
11
≤ -200mV
0
High-Z
1
Open or Shorted together
1
High-Z
1
0
X
High-Z
ISL81387, ISL41387
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