Product data

HD404818 Series
83
AC Characteristics (HD404812, HD404814, HD404816, HD404818: V
CC
= 4 to 6 V; HD4074818: V
CC
= 4 to 5.5 V; GND = 0 V, T
a
= –20°C to +75°C, unless otherwise specified)
Item Symbol Pin Min Typ Max Unit Test Condition Notes
Oscillation
frequency
f
OSC
OSC
1
, OSC
2
1.6 4.0 4.2 MHz
X1, X2 32.768 kHz
Oscillation
frequency
f
OSC
OSC
1
, OSC
2
(without 32 kHz)
0.25 4.0 4.2 MHz
Instruction
cycle time
t
cyc
0.95 1 2.5 µs
0.95 1 16 Without 32 kHz
Oscillator
stabilization
time
t
RC
OSC
1
, OSC
2
30 ms Crystal 1
7.5 ms Ceramic
f
OSC
= 4 MHz
1
X1, X2 3 s T
a
= –10° to 60°C2
External
clock
frequency
f
CP
OSC
1
1.6 4.2 MHz 3
0.25 4.2 MHz Without 32 kHz 3
External
clock high
width
t
CPH
OSC
1
110 ns 3
External
clock low
width
t
CPL
OSC
1
110 ns 3
External
clock rise
time
t
CPr
OSC
1
20 ns 3
External
clock fall time
t
CPf
OSC
1
20 ns 3
INT
0
high
width
t
IH
INT
0
2t
cyc
/
t
subcyc
4, 6
INT
0
low
width
t
IL
INT
0
2t
cyc
/
t
subcyc
4, 6
INT
1
high
width
t
IH
INT
1
2t
cyc
4
INT
1
low
width
t
IL
INT
1
2t
cyc
4