參數(shù)資料
型號: 38C1
廠商: Mitsubishi Electric Corporation
英文描述: DIODE ZENER SINGLE 200mW 24Vz 0.05mA-Izt 0.05 0.05uA-Ir 18.2 SOD-323 3K/REEL
中文描述: 單芯片8位CMOS微機(jī)
文件頁數(shù): 37/59頁
文件大小: 1063K
代理商: 38C1
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
38C1 Group
37
Fig. 37 Example of reset circuit
RESET CIRCUIT
To reset the microcomputer, RESET pin should be held at an
L
level for 2 μs or more. Then the RESET pin is returned to an
H
level (the power source voltage should be between V
CC
(min.) and
5.5 V), reset 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 re-
set input voltage is less than 0.2 V
CC
for V
CC
of V
CC
(min.).
Fig. 38 Reset Sequence
P
o
w
e
r
o
n
P
s
v
o
o
o
0
w
u
l
t
e
c
g
r
e
e
r
a
Reset input
voltage
0
P
d
o
e
w
t
e
e
c
r
t
i
s
o
o
n
u
c
r
i
c
r
e
c
v
i
o
t
l
t
a
g
e
u
0.2 V
CC
V
V
V
C
C
R
E
S
E
T
V
C
C
R
E
S
E
T
N
o
t
e
:
R
e
s
e
t
r
e
l
e
a
s
e
v
o
l
t
a
g
e
V
C
C
=
3
.
0
V
(Note)
R
E
S
E
T
S
Y
N
C
φ
ROSC
F
F
C
FFFD
AD
H,
AD
L
AD
L
AD
H
R
O
S
l
C
o
:
k
a
c
b
y
o
c
u
l
t
s
3
5
c
c
e
Notes 1 :
f(ROSC) and
φ
are in the relationship : f(ROSC) = 8
f(
φ
)
2 :
A question mark () indicates an undefined status that depends on the previous status.
Reset address from vector table
Internal
reset
Address
D
a
t
a
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