Datasheet
ADM485
Rev. F | Page 6 of 16
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
ADM485
TOP VIEW
(Not to Scale)
RO
1
RE
2
DE
3
DI
4
V
CC
8
B
7
A
6
GND
5
00078-002
Figure 2. Pin Configuration
Table 6. Pin Function Descriptions
Pin No. Mnemonic Function
1 RO Receiver Output. When enabled, if A is greater than B by 200 mV, RO is high. If A is less than B by 200 mV, RO is low.
2
RE
Receiver Output Enable. A low level enables the receiver output, RO. A high level places it in a high impedance state.
3 DE
Driver Output Enable. A high level enables the driver differential outputs, A and B. A low level places it in a high
impedance state.
4 DI
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.
5 GND Ground Connection, 0 V.
6 A Noninverting Receiver Input A/Driver Output A.
7 B Inverting Receiver Input B/Driver Output B.
8 V
CC
Power Supply, 5 V ± 5%.