M62009P 데이터 시트보기 (PDF) - Renesas Electronics
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M62009P Datasheet PDF : 9 Pages
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M62009L/P/FP
Operating Description
VSH
VCC2
VSL VSH
VSL
VSH
VSL
INT
VCC1
(1)
VS1-1
(2)
(1)
(2)
VS1-2
(1)
VS1-1
(2)
VS1-2
RESET
td
td
(3)
(4)
(3)
(4)
(1): VCC2 = VSH (increase of VCC2) INT output → Low (VSH = VSL + ∆VS)
(2): VCC2 = VSL (decrease of VCC2) INT output → High
(VSL =
R1 + R2
R2
VS2)
(3): Delay time obtained from VS1-1. td = 50ms (Cd = 0.33µF): td ≈ 1.52 × 105 × C (s)
RESET output: reset cancel (cancel)
(4): VCC1 = VS1-2 (VCC1 decrease)
RESET output: forced reset output (L reset)
Figure 1 Operating Waveform
Application Example
Car Audio
ACC SW
R1
R2
ACC detection
Regulator
5V
VCC1
VCC2
V1
Cd
Cd
VDD
RESET
detection
BACKUP INT
detection
M62009
PF
Power fail
VDD Power supply pin
RESET Reset input
INT Interrupt input
Microcomputer
Note: Interrupt detection VSL is set by resistance R1 between VCC2 and V1 and resistance R2 between R1 and V1.
VSL =
R1 + R2
R2
VS2
Figure 2 Application Example
Rev.1.00 Sep 14, 2005 page 4 of 6
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