參數(shù)資料
型號: M38854FA-HP
廠商: Renesas Technology Corp.
英文描述: SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
中文描述: 單芯片8位CMOS微機
文件頁數(shù): 68/103頁
文件大?。?/td> 1580K
代理商: M38854FA-HP
3885 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
67
RESET CIRCUIT
To reset the microcomputer, RESET pin should be held at an
L
level for 16 X
IN
cycle or more. (When the power source voltage
should be between 3.3V ± 0.3V and the oscillation should be
stable.) Then the RESET pin set to
H
, the reset state is released.
After the reset is completed, the program starts from the address
contained in address FFFD
16
(high-order byte) and address
FFFC
16
(low-order byte). Make sure that the reset input voltage is
less than 0.6 V for V
CC
of 3.0 V.
Fig. 66 Reset sequence
Fig. 65 Reset circuit example
RESET
Internal
reset
Data
φ
Address
SYNC
X
IN
: 10.5 to 18.5 clock cycles
X
IN
FFFC
FFFD
AD
H
,
L
AD
L
AD
H
1:
The frequency relation of f(X
IN
) and f(
φ
) is f(X
IN
)=8
f(
φ
).
2:
The question marks () indicate an undefined data that depends on the previous state.
Reset address from the vector table.
Notes
(Note)
0.2V
CC
0V
0V
Poweron
V
CC
RESET
V
CC
RESET
Power source
voltage detection
circuit
Power source
voltage
Reset input
voltage
Note
:
Reset release voltage ; Vcc=3.0 V
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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M38854FE-HP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M38854FF-HP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER