Datasheet

DocID9102 Rev 6 11/21
ST3485EB, ST3485EC Test circuits and typical characteristics
21
1. t
PZH
is valid if the driver is initially disabled (RE is high), t
PSH
is valid if the driver is initially in shutdown mode (RE is low).
1. The input pulse is supplied by a generator with the following characteristics: PRR = 250 kHz, 50% duty cycle, t
r
≤ 6.0 ns.
2. C
L
includes probe and stray capacitance.
Figure 8. Drive enable and disable times waveforms
&69
W
3=+
RUW
36+

Figure 9. Drive propagation time test circuit
&69
,1

