ML9042 データシートの表示（PDF） - Oki Electric Industry

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ML9042

DOT MATRIX LCD CONTROLLER DRIVER

Oki Electric Industry 

OKI Semiconductor

FEDL9042-01

ML9042-xx

Parameter Symbol

Condition

Voltage Multiplier

Input Voltage

Voltage Multiplier

Output Voltage

VMUL

VOUT

Note 7

VDD = 2.7 V, VIN = 2.25 V

f = 175 kHz

A capacitor for the voltage

multiplier = 1 to 4.7 µF

VOUT load current = 54 µA

BE = “H”

Applied to LCD bias

resistance of 10 kΩ (TYP)

only

Bias Voltage for

Driving LCD

VLCD1

VLCD2

V0–GND

Note 8

(GND = 0 V, VDD = 2.7 to 5.5 V, Ta = –40 to +85°C)

Applicable

Min. Typ. Max. Unit

pins

1.8 — 2.75

V

VIN

1/5

bias

4.3

—

(VDD–VIN)

×2

1/4

bias

V

4.3

—

(VDD–VIN)

×2

VOUT

1/5

2.7 —

5.5

bias

V

V0

1/4

2.7 —

5.5

bias

Note 1:

Applied to the voltage drop occurring between any of the V0, V1, V4 and GND pins and any of

the common pins (COM1 to COM17) when the current of 4 µA flows in or flows out at one

common pin.

Also applied to the voltage drop occurring between any of the V0, V2, V3A (V3B) and GND pins

and any of the segment pins (SEG1 to SEG100) when the current of 4 µA flows in or flows out at

one segment pin.

The current of 4 µA flows out when the output level is VDD or flows in when the output level is

V5.

Note 2: Applied to the current flowing into the VDD pin when the external clock (fOSC2 = fin = 270 kHz) is

fed to the internal Rf oscillation or OSC1 under the following conditions:

VDD = V0 = 5 V

GND = 0 V,

V1, V2, V3A (V3B) and V4: Open

E/SHTB and BE: “L” (fixed)

Other input pins: “L” or “H” (fixed)

Other output pins: No load

9/58

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