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PC87591E Datasheet(PDF) 63 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
No. de pieza PC87591E
Descripción Electrónicos  LPC Mobile Embedded Controllers
PDF  437 Pages
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Fabricante Electrónico  NSC [National Semiconductor (TI)]
Página de inicio  http://www.national.com
Logo NSC - National Semiconductor (TI)

PC87591E Datasheet(HTML) 63 Page - National Semiconductor (TI)

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3.0 Power, Reset and Clocks (Continued)
Revision 1.07
63
www.national.com
The following table summarizes the power states described in relation with the PC87591x power planes.
Figure 10 shows the power state transitions.
Figure 10. Power State Transitions
3.1.3
Power Connection and Layout Guidelines
The PC87591x requires a power supply voltage of 3.3V
± 10% for all the digital supplies (V
CC and VDD). The analog power
supply requires a voltage of 3.3V
± 10% or 3.3V ± 5%. A 3.3V ± 5% analog supply is recommended since it improves the
accuracy of measuring input voltage values close to the full-scale (see Section 7.4.1 on page 378).
Table 11. PC87591x Power States and Related Power Planes
Power State
Host Domain
(VDD)
Suspend
(VCC)
Analog
(AVCC)
Battery
Backed
(VPP)
VBAT
Battery Fail
-
-
-
-
-
Power Fail
-
-
-
+
+
Power Applied
Active and Idle
x
+
+
+
x
Host Power Off
-
+
+
+
x
Host Power On
+
+
+
+
x
Illegal1
1. Operation is not guaranteed.
+-
-
x
x
x+
-
x
x
x-
+
x
x
VBAT Off and VCC Off (VPP Off)
Battery Fail
Power Fail
Host
Power Off
Host
Power On
Active
Idle
VBAT On (VPP On)
and VCC Off
VCC On and
VCC On
VCC On and
VDD Off
VDD Off
VDD On
Hardware
Event
VCC On and
VDD On
VCC On
VDD On
Power Applied
(VCC On)
VBAT On (VPP On)
and VCC Off
Core Domain
Host Domain
Active
with WAIT
Software
Controlled
Hardware
Event
Software
Controlled
VDD Off



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