B+B SmartWorx WLNN551 Manual De Usuario
Airborne DP550 Family Databook
B&B Electronics, Inc.
29
9.0 RESET Function
For correct operation of the on-board Power-on RESET (POR) and internal RESET
controllers, the RESET pin on the WLNN-XX-DP550 family must obey the following
timing and signal conditions.
controllers, the RESET pin on the WLNN-XX-DP550 family must obey the following
timing and signal conditions.
Figure 4 - Power on RESET Timing
Figure 5 - RESET Timing
Table 18 - RESET Timing
Symbol
Parameter
Min
Typ
Max
Units
t
PURST
Valid V
DD
to RESET valid
200
ms
t
RLRV
RESET Valid to RESET Low
0
ms
t
RPWI
Valid V
DD
to Internal RESET completed
200
ms
t
RPW
RESET Pulse Width
100
µs