¡ Semiconductor
MSM6222B-xx
(V
DD
= 4.5 to 5.5V, Ta = –20 to +75°C)
Parameter
Symbol
Condition
V
DD
= 5.0V,
resistor oscillation or
external clock input via
OSC
1
.
Supply Current (1)
I
DD1
f
OSC
= 270kHz.
E is in "L" level.
Other inputs are open.
Output pins are
all no load.
V
DD
= 5.0V,
ceramic oscillation,
f
OSC
= 250kHz.
Supply Current (2)
I
DD2
E is in "L" level.
Other pins are open.
Output pins are
all no load.
LCD Driving Bias
Input Voltage
V
LCD1
V
LCD2
V
DD
–V
5
*7
*2
1/5 bias
1/4 bias
3.0
3.0
—
—
8.0
8.0
V
V
DD
, V
1
, V
2
,
V
3
, V
4
, V
5
—
0.55
0.8
mA
V
DD
*2
—
0.35
0.6
mA
V
DD
Min.
Typ.
Max.
Unit
Applicable pin
*2 Applicable to the current that flows in pin V
DD
when power is input as follows:
V
DD
= 5V, GND = 0V, V
1
= 3.4V, V
2
= 1.8V, V
3
= 0.2V, V
4
= –1.4V, and V
5
= –3V.
AC Characteristics
(V
DD
= 4.5 to 5.5V, Ta = –20 to +75°C)
Parameter
R
f
Clock Oscillation
Frequency
Clock Input
Frequency
Input Clock Duty
Input Clock Rise
Time
Input Clock Fall
Time
Ceramic Filter
Oscillation
Frequency
f
OSC
Symbol
f
OSC1
f
IN
f
DUTY
t
r
t
f
R
f
= 510kW,
C
1
= C
2
= 200 pF,
R
d
= 30kW, and
Ceralock CSB250A.
*6
245
250
255
kHz
OSC
1
OSC
2
Condition
R
f
= 91kW ± 2%
*3
OSC
2
is open.
Input from OSC
1
*4
*5
*5
Min.
175
125
45
—
—
Typ.
250
250
50
—
—
Max.
350
350
55
0.2
0.2
Unit
kHz
kHz
%
ms
ms
Applicable pin
OSC
1
OSC
2
OSC
1
OSC
1
OSC
1
OSC
1
8/45
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