HD404818 Datasheet, PDF (85/100 Pages) Hitachi Semiconductor – 16-digit LCD driver

HD404818 Series
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
Oscillation
frequency
Symbol
f _OSC
Oscillation f_OSC
frequency
Instruction t_cyc
cycle time
Oscillator
t _RC
stabilization
time
Pin
Min
OSC₁, OSC₂
1.6
X1, X2
OSC₁, OSC₂
0.25
(without 32 kHz)
0.95
OSC₁, OSC₂
0.95
External
f _CP
clock
frequency
External
t _CPH
clock high
width
External
t _CPL
clock low
width
External
t _CPr
clock rise
time
External
t _CPf
clock fall time
INT₀ high
t _IH
width
INT₀ low
t _IL
width
INT₁ high
t _IH
width
INT₁ low
t _IL
width
X1, X2
OSC₁
OSC₁
OSC₁
OSC₁
OSC₁
INT₀
INT₀
INT₁
INT₁
1.6
0.25
110
110
2
2
2
2
Typ Max
4.0 4.2
32.768
4.0 4.2
1
2.5
1
16
30
7.5
3
4.2
4.2
20
20
Unit Test Condition
MHz
kHz
MHz
µs
Without 32 kHz
ms Crystal
Notes
1
ms Ceramic
1
f_OSC = 4 MHz
s
T_a = –10° to 60°C 2
MHz
3
MHz Without 32 kHz
3
ns
3
ns
3
ns
3
ns
t _cyc /
t _subcyc
t _cyc /
t _subcyc
t _cyc
t _cyc
3
4, 6
4, 6
4
4
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