-----------------------------------------------------------------------------HMCS404AC
• AC
CHARACTERISTICS
(Ve
e
=4.5V
to
6V,
GND
=
OV,
Vdisp =
Vee-40V
to
Vee,
Ta
=
-20
to
+75°C,
if
not
specified.)
Value
Item
Symbol
Pin Name
Test
Conditions
Unit
Note
min
typ
max
Oscillation
Frequency
fosc
OSC!,OSC2
0.4
6
6.2
MHz
Instruction
Cycle
Time
tCyc
1.29 1.33
20
/.ls
Oscillator
Stabilization
Time
tRC
OSC!,OSC2
-
-
20
ms 1
External
Clock
"H
igh"
tCPH
OSC!
70
- - ns 2
Level
Width
External
Clock
"Low"
tCPL
OSC!
70
- - 2
Level Width
ns
External
Clock
Rise
Time
tCPr
OSC!
-
-
20
ns 2
External
Clock
Fall
Time
tCPf
OSC!
-
-
20
ns 2
INTo
"High"
Level Width
tlOH
INTo
2 -
-
tcyc
3
INTo
"Low"
Level Width
tlOL
INTo
2
-
-
tcyc
3
INT!
"High"
Level Width
tl1H
INT!
2 -
-
tcyc
3
INT!
"Low"
Level Width
tl1 L
INT!
2 -
-
tcyc
3
RESET
"High"
Level Width
tRSTH
RESET
2 - -
tcyc
4
Input
Capacitance
Cin
all pins
f = 1 MHz
- 15
pF
Vin = 0 V
-
RESET
Fall
Time
tRSTf
- -
20
ms 4
(Note
1)
Oscillator stabilization time
is
the time until the oscillator stabilizes after
VCC
reaches 4.5V
at
"Power-on", or after RESET input
level
goes
"High"
by
resetting to quit the stop mode
by
MCU
reset. The circuits
used
to
measure the
value
are described 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: 6.0MHz
NC-1BC
(Nihon
Denpa
Kogyo)
Rf
: 1M!l
±2%
C,
: 20pF
±20%
C. : 20pF ±
20%
(Note 2)
OSC,
tCPr
tCPf
(Note 4)
RESET
Ceramic
filter oscillator
Ceramic filter:
CSA6.00MG
(Murata)
Rf
: 1M!l±2%
C,
: 30pF ±
20%
C. : 30pF ±
20%
(Note
3)
303
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