zt490leep ywyn Corporation, zt490leep Datasheet - Page 2

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

Absolute Maximum Ratings
These are stress ratings only and functional operation of
the device at these ratings or any other above those indi-
cated in the operation sections of the specifi cations is not
implied. Exposure to absolute maximum rating conditions
for extended periods of time may affect reliability.
Power Supply, (V
Input Voltages
DI, DE, RE (V
DI, DE, RE (V
Differential Input Voltage, (V
A, B (V
Output Voltages
RO .............................................–0.3V to (V
Y, Z (A & B on ZT485) .............................. +12V to -7V
Operating Temperature ...................... –40°C to +85°C
Storage Temperature ....................... –65°C to +150°C
Power Dissipation Per Package
8-pin PDIP (derate 9.09mW/°C above +70°C) ........ 722mW
8-pin nSOIC (derate 6.14mW/°C above +70°C) ....... 500mW
14-pin PDIP (derate 10.00mW/°C above +70°C) ...... 800mW
14-pin nSOIC (derate 8.33mW/°C above +70°C) .... 667mW
Zywyn Corporation
Z ywyn
I
) ................................................ +12V to -7V
IH
IL
), Low Input Voltage ....... 0V to +0.8V
), High Input Voltage .... +2V to +6.0V
CC
) .... ................... –0.3V to +6.0V
ID
) ............ -12V to +12V
CC
+0.3V)
2
Storage Considerations
Storage in a low humidity environment is preferred. Large
high density plastic packages are moisture sensitive
and should be stored in Dry Vapor Barrier Bags. Prior
to usage, the parts should remain bagged and stored
below 40°C and 60%RH. If the parts are removed from
the bag, they should be used within 48 hours or stored
in an environment at or below 20%RH. If the above
conditions cannot be followed, the parts should be baked
for four hours at 125°C in order remove moisture prior
to soldering. Zywyn ships product in Dry Vapor Barrier
Bags with a humidity indicator card and desiccant pack.
The humidity indicator should be below 30%RH.
The information furnished by Zywyn has been carefully
reviewed for accuracy and reliability. Its application or
use, however, is solely the responsibility of the user. No
responsibility of the use of this information become part
of the terms and conditions of any subsequent sales
agreement with Zywyn. Specifi cations are subject to
change without the responsibility for any infringement
of patents or other rights of third parties which may
result from its use. No license or proprietary rights are
granted by implication or otherwise under any patent
or patent rights of Zywyn Corporation.
Specifi cations subject to change without notice
August 2007
ZT4xxE
rev. 1.5