ZT490E ETC1 [List of Unclassifed Manufacturers], ZT490E Datasheet - Page 5

• Manufacturer Part Number: ZT490E
• Description: Low Power 5V 250kbps/10Mbps RS485 Transceivers
• Manufacturer: ETC1 [List of Unclassifed Manufacturers]

Zywyn Corporation
AC Electrical Characteristics (ZT483E, ZT488E, and ZT489E)
Unless otherwise stated, V
Receiver Timing
Shutdown Timing
Transceiver Throughput
Transmitter Timing
ESD Tolerance
Parameter
Transmitter Propagation t
Transmitter Propagation t
Transmitter Output Skew t
Transmitter Rise/Fall Time
Transmitter Output Enable
Transmitter Output Disable
Receiver Propagation t
Receiver Propagation t
Differential Receiver Skew t
Receiver Output Enable
Receiver Output Disable
Time to Shutdown, t
Transmitter Enable from
SHUTDOWN to Output HIGH
Transmitter Enable from
SHUTDOWN to Output LOW
Receiver Enable from
SHUTDOWN to Output HIGH
Receiver Enable from
SHUTDOWN to Output LOW
Maximum Data Rate
ESD HBM
Zywyn
SHDN
CC
PLH
PHL
SK
= +5.0V, T
PLH
PHL
SK
R
R
| | | | | t
t
To Output HIGH, C
To Output LOW, C
From Output HIGH, C
From Output LOW, C
C
C
| | | | | t
To Output HIGH, C
To Output LOW, C
From Output HIGH, C
From Output LOW, C
ZT483E
C
C
C
C
R
RS485 Inputs and Outputs
r
PLH
PHL
, t
DIFF
DIFF
L
L
L
L
L
L
L
Condition
A
f
= 15pF, Refers to figure 9.
= 15pF, Refers to figure 9.
= 50pF, R
= 50pF, R
= 15pF, R
= 15pF, R
= 54Ω, C
= T
, R
- t
- t
= 54Ω, C
= 54Ω, C
DIFF
min
PHL
PLH
to T
| | | | |
| | | | |
L
= 54Ω, C
L
L
L
L
= 50pF, T
max
= 110Ω. Refers to figure 5.
= 110Ω. Refers to figure 6.
= 1kΩ. Refers to figure 12.
= 1kΩ. Refers to figure 12.
L
L
= 50pF. Refers to figure 4.
= 50pF. Refers to figure 4.
, typical values apply at V
L
L
L
L
= 50pF, R
= 15pF, Refers to figure 11.
= 15pF, Refers to figure 10.
= 50pF, R
L
L
L
L
L
= 15pF, Refers to figure 11.
= 50pF, Refers to figure 4.
= 15pF, R
= 15pF, R
= 15pF, Refers to figure 10.
A
= 25°C.
L
L
5
= 110Ω. Refers to figure 6.
= 110Ω. Refers to figure 5.
L
L
= 110Ω. Refers to figure 6.
= 110Ω. Refers to figure 5.
CC
= +5.0V and T
A
= 25°C.
Specifications subject to change without notice
Min
0.25
250
250
250
250
250
50
Typ
800
800
100
100
100
100
100
100
100
100
200
200
200
200
200
±15
20
10
2000
2000
2000
2000
2000
Max
800
600
August 2004
ZT4xxE
Units
Mbps
rev.1.2
n s
n s
n s
n s
n s
n s
n s
n s
n s
n s
n s
n s
n s
n s
n s
n s
n s
n s
n s
n s
kV