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7630 Datasheet(PDF) 162 Page - Renesas Technology Corp

Part # 7630
Description  8-BIT SINGLE-CHIP MICROCOMPUTER
PDF  238 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

7630 Datasheet(HTML) 162 Page - Renesas Technology Corp

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APPLICATION
2-96
2.8 Reset
7630 Group User’s Manual
2.8 Reset
Figure 2.8.1 shows an example of power on reset circuit.
Figure 2.8.2 shows system example which switch the microcomputer to the RAM backup mode by detecting
a drop of the system power source voltage with the INT interrupt.
Fig. 2.8.1 Example of Power on reset circuit
Fig. 2.8.2 RAM back-up system
Power source
M51953AL
GND
7630 group
VCC
VSS
Output
Delay capacity
0.1
µF
1
3
4
5
RESET
M51953AL
GND
7630 group
VCC
VSS
1
4
5
RESET
Cd
RESET
V1
VCC2
VCC1
2
3
6
7
System power
source voltage
+5V
+
INT



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