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D4289451A
●- GPIO signal output
GPIO output Line 3.4 has a delay due to the difference of the output circuit for Line 1, 2.
Ton
OpenCollector
LINE1
LINE2
0V
0V
LVTTL
Toff
(OpenCollector)
(LVTTL)
(a) ActiveLow
Ton
LINE1
LINE2
0V
0V
LVTTL
Toff
(OpenCollector)
(LVTTL)
OpenCollector
(b) ActiveHigh
GPIO Signal Output Delay
Toff : Falling delay time of Line3, 4
Ton : Rising delay time of Line3, 4
Pull-up amplitude
Toff [μs]
Ton [μs]
+5V
2
63
* Measured pulled up with 10k ohm register.
* Toff and Ton are typical value. These values are changed in operating environment.
Line 1
,
2
Line 3
,
4
Line 1
,
2
Line 3
,
4