ADM488 Analog Devices, ADM488 Datasheet - Page 4

• Manufacturer Part Number: ADM488
• Description: Full-Duplex/ Low Power/ Slew Rate Limited/ EIA RS-485 Transceivers
• Manufacturer: Analog Devices

ADM488/ADM489
Pin Mnemonic Function
1
2
3
4
5
6
7
8
DIP/SOIC TSSOP
Pin
1, 8, 13
2
3
4
5
6, 7
9
10
11
12
14
V
RO
DI
GND
Y
Z
B
A
CC
ADM488 PIN FUNCTION DESCRIPTIONS
ADM489 PIN FUNCTION DESCRIPTIONS
Pin
2, 9, 10, NC
13, 16
3
4
5
6
7, 8
11
12
14
15
1
Power Supply, 5 V
Receiver Output. When A > B by 200 mV,
RO = high. If A < B by 200 mV, RO = low.
Driver Input. A logic Low on DI forces Y low
and Z high while a logic High on DI forces Y
high and Z low.
Ground Connection, 0 V
Noninverting Driver, Output Y
Inverting Driver, Output Z
Inverting Receiver Input B
Noninverting Receiver Input A
Mnemonic Function
RO
RE
DE
DI
GND
Y
Z
B
A
V
CC
No Connect. No connections
are required to this pin.
Receiver Output. When
enabled if A > B by 200 mV
then RO = high. If A < B by
200 mV then RO = low.
Receiver Output Enable. A
low level enables the receiver
output, RO. A high level
places it in a high impedance
state.
Driver Output Enable. A
high level enables the driver
differential outputs, Y and Z.
A low level places it in a high
impedance state.
Driver Input. When the
driver is enabled, a logic Low
on DI forces Y low and Z
high, while a logic High on
DI forces Y high and Z low.
Ground Connection, 0 V
Noninverting Driver
Output Y
Inverting Driver Output Z
Inverting Receiver Input B
Noninverting Receiver
Input A
Power Supply, 5 V
10%.
10%.
–4–
PIN CONFIGURATIONS
GND
GND
GND
V
GND
GND
V
RO
RO
NC
RE
DE
CC
NC
RO
RE
DE
DI
DI
CC
DI
14-Lead DIP/SO
16-Lead TSSOP
8-Lead DIP/SO
1
2
3
4
1
2
3
4
5
6
7
NC = NO CONNECT
1
2
3
4
5
6
7
8
NC = NO CONNECT
(Not to Scale)
(Not to Scale)
(Not to Scale)
TOP VIEW
ADM488
ADM489
ADM489
TOP VIEW
TOP VIEW
14
13
12
11
10
8
7
6
5
9
8
16
15
14
13
12
11
10
9
A
B
Z
Y
V
NC
A
B
Z
Y
NC
NC
A
B
NC
Z
Y
NC
NC
CC
REV. 0