AMIS30421C4211G ONSEMI [ON Semiconductor], AMIS30421C4211G Datasheet - Page 10

• Manufacturer Part Number: AMIS30421C4211G
• Description: Micro-Stepping Stepper Motor Bridge Controller
• Manufacturer: ONSEMI [ON Semiconductor]

Internal signal
Internal signal
<WDEN>
WD Timer
POR
V
Remarks:
−WDb−pin pulled up to V
−t
−<WDEN> and <WDT[3:0]> are SPI bits
t
t
V
V
V
V
WDb
WDTO
WDPR
DDH
DD
DDL
WDTO
BB
V
V
V
V
V
BBOH
BBOL
BBUH
BB
BBUL
= <WDT[3:0]>
Enable Watchdog
t
PU
t
DSPI
t
POR
Figure 4. Power−On−Reset Timing Diagram
DD
Figure 5. Under− and Overvoltage
and t
> t
WDPR
WDTO
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Ï Ï
É É
Ï
É
Ï
É
Ï
É
10
≤ t
WDPR
Write ‘1’ to <WDEN>
or ≥ t
≤t
WDTO
RF
t
WDRD
t
POR
t
t
t
t
t
t
t