zt490leep ywyn Corporation, zt490leep Datasheet - Page 8

• Manufacturer Part Number: zt490leep
• Description: Low Power 5v 250kbps/10mbps Rs485e Transceivers
• Manufacturer: ywyn Corporation

ZT483E/ZT485E
ZT488E/ZT490E
Zywyn Corporation
Function Table
Note:
H = High Level; L = Low Level; Z = High Impedance; X = Irrelevant; U = Undertermine State.
ZT489E/ZT491E
Open
Input
Open
Input
Z ywyn
DI
DI
H
X
X
L
H
X
X
L
Open
Input
DI
H
X
X
L
Enable
Enable
Open
Open
DE
DE
H
H
H
L
H
H
H
DRIVER
L
DRIVER
DRIVER
H
H
Y
L
Z
Z
A
H
H
L
Z
Z
H
H
Y
Z
Z
L
Outputs
Outputs
Outputs
H
Z
L
Z
L
Z
H
B
Z
Z
L
L
H
Z
L
Z
L
Z
-0.2V < V
-0.2V < V
Differential Inputs
-0.2V < V
Differential Inputs
Differential Inputs
V
8
V
V
V
+0.2V ≤ V
V
+0.2V ≤ V
ID
V
+0.2V ≤ V
ID
ID
ID
ID
ID
= V
= V
= V
≤ -0.2V
≤ -0.2V
≤ -0.2V
X
X
X
X
RECEIVER
ID
X
X
ID
A
ID
A
A
< +0.2V
- V
< +0.2V
- V
< +0.2V
- V
ID
ID
B
ID
B
B
RECEIVER
RECEIVER
Output
Enable
Enable
Open
Open
Specifi cations subject to change without notice
RO
RE
U
H
RE
L
Z
Z
H
L
L
L
H
L
L
L
Output
Output
RO
RO
U
H
Z
Z
L
U
H
Z
Z
L
August 2007
ZT4xxE
rev. 1.5