M37736M4L Datasheet, PDF (7/32 Pages) Mitsubishi Electric Semiconductor – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

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RESET CIRCUIT
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The microcomputer is released from the reset state when the RESET
pin is returned to “H” level after holding it at “L” level with the power
source voltage at 2.7 – 5.5 V. Program execution starts at the address
formed by setting address A23 – A16 to 0016, A15 – A8 to the contents
of address FFFF16, and A7 – A0 to the contents of address FFFE16.
Figure 3 shows an example of a reset circuit. When the stabilized
clock is input from the external to the main-clock oscillation circuit,
the reset input voltage must be 0.55 V or less when the power source
voltage reaches 2.7 V. When a resonator/oscillator is connected to
the main-clock oscillation circuit, change the reset input voltage from
“L” to “H” after the main-clock oscillation is fully stabilized.
Power on
RESET
VCC
VCC
0V
2.7V
RESET
0V
0.55V
Note. In this case, stabilized clock is input from the
external to the main-clock oscillation circuit.
Perform careful evalvation at the system design
level before using.
Fig. 3 Example of a reset circuit
MITSUBISHI MICROCOMPUTERS
M37736M4LXXXHP
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
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