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PC87307 Folha de dados(PDF) 57 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Nome de Peças PC87307
Descrição Electrónicos  PC87307/PC97307 Plug and Play Compatible and PC97 Compliant SuperI/O
PDF  218 Pages
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Fabricante Electrônico  NSC [National Semiconductor (TI)]
Página de início  http://www.national.com
Logo NSC - National Semiconductor (TI)

PC87307 Folha de dados(HTML) 57 Page - National Semiconductor (TI)

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57
Real-Time Clock (RTC) and Advanced Power Control (APC) (Logical Device 2)
www.national.com
FIGURE 4-9. APC State Diagram
APC Inactive
APC Active
APC Active
Initial Values
Programmed Values
No Power
Power Failure
Power Off
Power On
Power Off
Power Failure
Power On
VBAT = Low
VCCH = Low
ONCTL = Inactive
VBAT = High
VCCH = Low
ONCTL = Inactive
VBAT = Don’t Care
VCCH = High
ONCTL = Inactive
VBAT = Don’t Care
VCCH = High
ONCTL = Active
VBAT
VBAT
Power Off
Switch On Event
Enabled
Wake Up
Event
Switch
On
Event
Only
V
CCH
∗ V
BAT
V
CCH ∗ MOAP
∗ (Power
Failure
Bit
= 1)
Switch
Off Event
or
V CCH
∗ V
BAT
VBAT = Don’t Care
VCCH = High
ONCTL = Inactive
VBAT = Don’t Care
VCCH = High
ONCTL = Active
VBAT = Don’t Care
VCCH = High
ONCTL = Inactive
VBAT = High
VCCH = Low
ONCTL = Inactive
A
VCCH ∗ MOAP ∗ (Power Failure Bit = 0)
(can occur if VDD is not controlled by ONCTL)
V CCH
∗ MOAP
∗ Power
A
VCCH ∗ VBAT
A
VCCH ∗ VBAT
A
VCCH ∗ VBAT
A
VCCH ∗ VBAT
Was
Off
A
Software
Off Command
Switch Off Event or
Software Off Command



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