AT91CAP9S500A_1 Datasheet, PDF (1092/1137 Pages) ATMEL Corporation – Customizable Microcontroller Processor

AT91CAP9S500A/AT91CAP9S250A
Figure 49-3. V_VDDCORE and V_VDDIO Constraints at Startup
VDD (V)
VDDIOtyp
Voh
VDDIO
VDDIO > VOH
VDDCOREtyp
BMS sampling level
Vth+
<--------------------- T1---------------------><--Tres -><T2> _{<------------ T3----------->}
Core Supply POR output
SLCK
VDDCORE
t
49.10.3
Power-Down Sequence
Switch-off the VDDIOM, VDDIOP0, VDDIOP1, VDDMPIOA and VDDMPIOB power supply prior
to or at the same time as VDDCORE.
No power-up or power-down restrictions apply to VDDBU, VDDPLL, VDDUPLL, VDDUTMII,
VDDUTMIC and VDDANA.
6264C–CAP–24-Mar-09
1092