adm485arm-reel7 Analog Devices, Inc., adm485arm-reel7 Datasheet - Page 4

• Manufacturer Part Number: adm485arm-reel7
• Description: 5 V Low Power Eia Rs-485 Transceiver
• Manufacturer: Analog Devices, Inc.

ADM485
Pin No. Mnemonic
1
2
3
4
5
6
7
8
RO
RE
DE
DI
GND
A
B
V
CC
Function
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, A and B. A low level places it in a
high impedance state.
Driver Input. When the driver is enabled, a Logic Low on DI forces A low and B high while a Logic High
on DI forces A high and B low.
Ground Connection, 0 V.
Noninverting Receiver Input A/Driver Output A.
Inverting Receiver Input B/Driver Output B.
Power Supply, 5 V ± 5%.
PIN FUNCTION DESCRIPTIONS
PIN CONFIGURATION
RO
RE
DE
DI
1
2
3
4
(Not to Scale)
TOP VIEW
ADM485
–4–
8
7
6
5
V
B
A
GND
CC
REV. E