ML9042 Ver la hoja de datos (PDF) - LAPIS Semiconductor Co., Ltd.
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ML9042 Datasheet PDF : 58 Pages
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LAPIS Semiconductor
FEDL9042-01
ML9042-xx
ABSOLUTE MAXIMUM RATINGS
Parameter
Supply Voltage
LCD Driving Voltage
Symbol
VDD
V0, V1, V2,
V3, V4,
Condition
Ta = 25C
Ta = 25C
Rating
–0.3 to +6.5
–0.3 to +6.5
Input Voltage
VI
Ta = 25C –0.3 to VDD+0.3
Storage Temperature
TSTG
—
–55 to +150
(GND = 0 V)
Unit
Applicable pins
V
VDD
V
VOUT, V0, V1, V2, V3A, V3B, V4,
GND
RW/SI, E/SHTB, SP,
V
RS0/CSB, RS1, BE,
ROM1S, T1 to T3, DB0(SO)
to DB7, VIN
C
—
RECOMMENDED OPERATING CONDITIONS
Parameter
Symbol Condition
Range
Unit
Supply Voltage
VDD
—
LCD Driving Voltage
V0
—
(See Note)
2.7 to 5.5
V
2.7 to 5.5
V
Voltage Multipler
Input Voltage
VMUL
BE = “1”
1.8 to 2.75
V
Operating Temperature
Top
—
–40 to +85
C
(GND = 0 V)
Applicable pins
VDD
VOUT, V0
VIN
—
Note: This voltage should be applied across V0 and GND. The following voltages are output to the V1,
V2, V3A (V3B) and V4 pins:
1/4 bias (V2 and V3B are short-circuited)
V1 =3 V0/4 0.15 V
V2 = V3B = V0/2 0.15 V
V4 = V0/4 0.15 V
1/5 bias (V3A and V3B are short-circuited)
V1 = 4 V0/5 0.15 V
V2 = 3 V0/5 0.15 V
V3A = V3B = 2 V0/5 0.15 V
V4 = V0/5 0.15 V
The voltages at the V0, V1, V2, V3A (V3B), V4 and GND pins should satisfy
V0 > V1 > V2 > V3A (V3B) > V4 > GND
(Higher
Lower)
* If the chip is attached on a substrate using COG technology, the chip tends to be susceptible
to electrical characteristics of the chip due to trace resistance on the glass substrate. It is
recommended to use the chip by confirming that it operates on the glass substrate properly.
Trace resistance, especially, VDD and VSS trace resistance, between the chip on the LCD
panel and the flexible cable should be designed as low as possible. Trace resistance that
cannot be very well decreased, larger size of the LCD panel, or greater trace capacitance
between the microcontroller and the ML9042 device can cause device malfunction. In order
to avoid the device malfunction, power noise should be reduced by serial interfacing of the
microcontroller and the ML9042 device.
* Do not apply short-circuiting across output pins and across an output pin and an input/output
pin or the power supply pin in the output mode.
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