81487EIB 查看數據表（PDF） - Renesas Electronics
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产品描述 (功能)
比赛名单
81487EIB Datasheet PDF : 14 Pages
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ISL8487E, ISL81487L, ISL81487E
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
15kV HBM ESD Protected, RS-485/422 level, noninverting receiver input and non-inverting driver output. Pin is an input (A) if
DE = 0; pin is an output (Y) if DE = 1.
B/Z
15kV HBM ESD Protected, RS-485/422 level, inverting receiver input and inverting driver output. Pin is an input (B) if DE = 0; pin is
an output (Z) if DE = 1.
VCC System power supply input (4.5V to 5.5V).
Typical Operating Circuits
ISL8487E, ISL81487L, ISL81487E
+5V
8
+ 0.1F
1 RO
VCC
R
2 RE
B/Z 7
RT
3 DE
A/Y 6
+
0.1F
RT
7
6
+5V
8
VCC
B/Z
A/Y
D DI 4
DE 3
RE 2
4 DI
D
GND
5
R
GND
5
RO 1
FN6051 Rev.7.00
February 27, 2006
Page 3 of 14
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