參數(shù)資料
型號： M37536E8SP
元件分類： 微控制器/微處理器
英文描述： 8-BIT, OTPROM, 6 MHz, MICROCONTROLLER, PDIP42
封裝： 0.600 INCH, 1.78 MM PITCH, PLASTIC, SDIP-42
文件頁數(shù)： 26/46頁
文件大小： 660K
代理商： M37536E8SP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
7536 Group
MITSUBISHI MICROCOMPUTERS
31
Reset Circuit
The microcomputer is put into a reset status by holding the RESET
pin at the “L” level for 15
s or more when the power source voltage
is 4.1 to 5.5 V and XIN is in stable oscillation.
After that, this reset status is released by returning the RESET pin to
the “H” level. The program starts from the address having the con-
tents of address FFFD16 as high-order address and the contents of
address FFFC16 as low-order address.
Note that the reset input voltage should be 0.82 V or less when the
power source voltage passes 4.1 V.
Fig. 37 Example of reset circuit
Fig. 38 Timing diagram at reset
(Note)
0.2 VCC
0 V
Poweron
VCC
RESET
VCC
RESET
Power source
voltage
detection circuit
Power source
voltage
Reset input
voltage
Note : Reset release voltage Vcc = 4.1 V
Data
Address
8-13 clock cycles
Reset address from the
vector table
1 : A built-in ring oscillator applies about 250 kHz frequency clock as f at average of Vcc = 5 V.
2 : The mark “?” means that the address is changeable depending on the previous state.
3 : These are all internal signals except RESET
Notes
φ
RESET
RESETOUT
SYNC
?
FFFC
FFFD
ADH,ADL
??
?
??
ADL
ADH
??
?
Clock from built-in
ring oscillator
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