COM20051I Datasheet, PDF (19/74 Pages) SMSC Corporation – Integrated Microcontroller and ARCNET (ANSI 878.1) Interface

RXIN
COM20051I
nTXEN
nPULSE1
nPULSE2
GND
HYC9068 or
HYC9088
RXIN
+5V
10 uF +
6
0.47 uF
N/C
nPULSE1
nPULSE2
17, 19,
4, 13, 14
0.47
uF
12
11
5.6K
1/2W
5.6K
1/2W
0.01 uF
1KV
3
-5V
+ ₁₀
uF
Traditional Hybrid
Configuration
FIGURE 6 – DIPULSE HYBRID CONFIGURATION
RT
+VCC
RT
75176B or
Equiv.
RBIAS
+VCC
RBIAS
+VCC
RBIAS
COM20051I
COM20051I
COM20051I
FIGURE 7 – COM20051I NETWORK USING RS-485 DIFFERENTIAL TRANSCEIVERS
SMSC DS – COM20051I
Page 19
Rev. 03/27/2000