SP336E Datasheet, PDF (18/30 Pages) Exar Corporation – 3.3V - 5V PROGRAMMABLE RS-232/RS-485/RS-422 SERIAL TRANSCEIVER

SP336E
3.3V - 5V PROGRAMMABLE RS-232/RS-485/RS-422 SERIAL TRANSCEIVER
FIGURE 10. RS-485 DRIVER ENABLE AND DISABLE TIMING DIAGRAM
REV. 1.0.0
DE
t_DZH
Vcc/2
Vcc
0
OUT
V_OM = (V_OL + Vcc)/2
0.25V
0
t_DHZ
FIGURE 11. RS-485 DRIVER ENABLE AND DISABLE TEST CIRCUIT 2
A S1
0 ^DI Tx
B
C_L = 50pF
GENERATOR
50Ω
Vcc
R_L = 500Ω
OUT
FIGURE 12. RS-485 DRIVER ENABLE AND DISABLE TIMING DIAGRAM 2
DE
OUT
V_OL
t_DZL
V_OM = (V_OL + Vcc)/2
Vcc/2
Vcc
0
t_DLZ
0.25V
18