ZT490E ETC1 [List of Unclassifed Manufacturers], ZT490E Datasheet - Page 6

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

Zywyn Corporation
Pin Description
ZT483E/ZT485E
Zywyn
n/a
n/a
n/a
n/a
n/a
1
2
3
4
5
6
7
8
Pin Numbers
ZT488E/ZT490E
n/a
n/a
n/a
n/a
n/a
2
3
4
5
6
8
7
1
ZT489E/ZT491E
6
1, 8, 13
6, 7
n/a
n/a
10
12
11
14
2
3
4
5
9
Name
RO
RE
DE
DI
GND
Y
Z
A
A
B
B
V
NC
CC
Specifications subject to change without notice
Receiver Output. If A>B by
200mV, then RO = HIGH; If
A<B by 200mV, then RO =
LOW
Receiver Output Enable. Low
active input. RO is high-Z when
RE = HIGH
Driver Output Enable. The
transmitter outputs, Y and Z, are
enabled when DE = HIGH.
The outputs are high-Z when
DE = LOW.
Driver Input. A low on DI forces
output Y low and output Z high.
A high on DI will bring output Y
high and output Z low.
Analog Ground
Non-inverting transmitter output
Inverting transmitter output
Non-inverting transmitter output
and non-inverting receiver
input.
Non-inverting receiver
input.
Inverting transmitter output
and inverting receiver
input.
Inverting receiver input
Power Supply Input, +5V ±5%
No Connect, Not internally
connected
Description
August 2004
ZT4xxE
rev.1.2