------------------------------------------------------------------HMCS404C
•
AC
CHARACTERISTICS
(Vee
=4V
to
6V.
GND
=
OV.
V
dilP
= Vee
-40V
to
Vee.
Ta
=
-20
to
+75°C,
if
not
specified.)
Test
Value
Item
Symbol
Pin
Name
Conditions
Unit
min
typ
max
o~
S
Oscillation
Frequency
faIC
OSCI.OSC
1
0.4
4
4.5
MHz
~.~
~
Instruction
Cycle
Time
tCyc
1.78
2
20
p.s
~~~
Oscillator
Stabilization
u~O
Time
tRC
OSCI.OSC
1
-
-
20
ms
Oscillation
Frequency
talC
OSC
I
.OSC
2
Rf=20k!l±2%
1.8
3.0
4.2
MHz
... 0
0
...
.
~~
Instruction
Cycle
Time
tCyc
Rf=20k!l±2%
1.9 2.66
4.44
p.s
QJ U
a::
a
Oscillator
Stabil
ization
tRC
OSC
I
,OSC
2
Rf=20k!l±2% - -
0.5
ms
Time
External
Clock
Frequency
tcp
OSCI
0.4
- 4.5
MHz
.It
External
Clock
"High"
tCPH
OSCI
100
- -
ns
U
Level
Width
0
U
External
Clock
"Low"
tCPL
OSCI
100
- -
c;;
Level
Width
ns
E
~
External
Clock
Rise
Time
tCPr
OSCI
-
-
20
ns
x
w
External
Clock
Fall
Time
tCPf
OSCI
20
- -
ns
Instruction
Cycle
Time
tCYC
1.78
-
20
p.s
INTo
"High"
Level
Width
tlOH
"INTo
2 -
-
tcyc
TNTo
"Low"
Level
Width
tlOl
INTo 2 -
-
tcyc
INTI
"High"
Level
Width
tllH
INTI
2 -
-
tcyc
INTI
"Low"
Level
Width
till
INTI
2 -
-
tcyc
RESET
"High"
Level
Width
tRSTH
RESET
2 - -
tcyc
Input
Capacitance
C
in
all
pins
f=lMHz
- -
15
pF
V
in
=
OV
RESET
Fall
Time
tRSTf
-
-
20
ms
(Note
1)
Oscillator stabilization time
is
the time until the oscillator stabilizes after
VCC
reaches 4.0V at "Power-on",
or
after RESET
input
level
goes
to
"High"
by
resetting
to
quit
the
stop mode by
MCU
reset
on
the
circuits below. When
using
crystal or
ceramic
filter oscillator, please ask a crystal oscillator maker's
or
ceramic filter maker's advice because oscillator stabilization
time depends on
the
circuit constant and stray capacity.
Crystal oscillator
GND
Crystal: 4.l94304MHz NC-18C(Nihon Denpa Kogyo)
Rf:
lMn.
±2%
C, : 22pF±20%
C2
: 22pF±20%
(Note
2)
OSC,
tCPr
tCPf
(Note
4)
RESET
Ceramic filter oscillator
Resistor oscillator
C,
,.--I
Ceramic
I
filterc::::::l
7~t
e
SC1
Rf
OSC,
GND
Ceramic filter: CSA4.00MG (Murata)
Rf:
20kll±2%
Rf
: lMHz±2%
C, : 30pF±20%
C2
: 30pF ±20%
(Note 3)
227
Note
1
1
2
2
2
2
2
2
3
3
3
3
4
4
To Next Page
Loading...
