参数资料
型号: ISL43485IBZ
厂商: Intersil
文件页数: 4/11页
文件大小: 0K
描述: IC TXRX RS485/422 3.3V LP 8SOIC
标准包装: 98
类型: 收发器
驱动器/接收器数: 1/1
规程: RS422,RS485
电源电压: 3 V ~ 3.6 V
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
供应商设备封装: 8-SOICN
包装: 管件
产品目录页面: 1241 (CN2011-ZH PDF)
2
FN6071.1
March 15, 2005
Truth Tables
TRANSMITTING
INPUTS
OUTPUTS
RE
DE
DI
Z
Y
X
1101
X
1010
0
X
High-Z
1
0
X
High-Z *
NOTE: *Shutdown Mode
RECEIVING
INPUTS
OUTPUT
RE
DE
A-B
RO
00
≥ +0.2V
1
00
≤ -0.2V
0
Inputs Open
1
0
X
High-Z *
1
X
High-Z
NOTE: *Shutdown Mode
Pin Descriptions
PIN
FUNCTION
RO
Receiver output: If A > B by at least 0.2V, RO is high; If A < B by 0.2V or more, RO is low; RO = High if A and B are unconnected (floating).
RE
Receiver output enable. RO is enabled when RE is low; RO is high impedance when RE is high.
DE
Driver output enable. The driver outputs, Y and Z, are enabled by bringing DE high. They are high impedance when DE is low.
DI
Driver input. A low on DI forces output Y low and output Z high. Similarly, a high on DI forces output Y high and output Z low.
GND
Ground connection.
A/Y
Noninverting receiver input and noninverting driver output. Pin is an input if DE = 0; pin is an output if DE = 1.
B/Z
Inverting receiver input and inverting driver output. Pin is an input if DE = 0; pin is an output if DE = 1.
VCC
System power supply input (3V to 3.6V).
Typical Operating Circuit
ISL43485
0.1
F
+
D
R
7
6
8
1
2
3
4
5
VCC
GND
RO
RE
DE
DI
A/Y
B/Z
+3.3V
0.1
F
+
D
R
6
7
8
1
2
3
4
5
VCC
GND
RO
RE
DE
DI
A/Y
B/Z
+3.3V
RT
ISL43485
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