MSM6555B-XX datasheet(4/27 Pages) OKI

No de pièce	MSM6555B-XX

Description	DOT MATRIX LCD CONTROLLER WITH 17-DOT COMMON DRIVER AND 80-DOT SEGMENT DRIVER

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Fabricant	OKI [OKI electronic componets]

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MSM6555B-xx

¡ Semiconductor

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ELECTRICAL CHARACTERISTICS

DC Characteristics (1)

*1 f=32.768 kHz

; crystal oscillation

*2 f=32.768 kHz

; external clock

*3 f=76.8 kHz

; external clock

*4 After reset input "L" pulse input or stop command input:

Note: The above values are guaranteed when the IC chip is not exposed to light.

DC Characteristics (2)

(VDD = 3V ±10%, Ta = –10 to +70°C)

Parameter

Symbol

Condition

Min.

Typ.

Max.

Unit

Applicable pin

"H" Input Voltage 1

VIH1

—VDD–0.3

—

VDD

VXT

"L" Input Voltage 1

VIL1

—

0

—

0.6

V

XT

"H" Input Voltage 2

VIH2

—

0.8VDD

—VDD

V

Input pins except XT

"L" Input Voltage 2

VIL2

—

0

—

0.2VDD

V

Input pins except XT

"H" Input Current 1

IIH1

VI = VDD

——

1

m

A

Input pins except TEST and XT

"L" Input Current

IIL

VI = 0V

—

–1

m

A

Input pins except XT

"H" Input Current 2

IIH2

VI = VDD

0.1

—

0.4

mA

TEST

"H" Output Voltage

VOH

IOH = –400mAVDD–0.5

—

V

SO

"L" Output Voltage

VOL

IOL = 1.5mA

—

0.5

V

SO

Off Leakage Current

IOFF

VI = VDD/0V

—

±10

m

ASO

COM Output Resistance

RC

IO = ±50mA—

—

5

kW

C1 to C17

SEG Output Resistance

RS

IO = ±10mA

——15

kW

S1 to S80

Supply Current 1

IDD1

*1

—2550

m

A—

Supply Current 2

IDD2

*2

—2040

m

A—

Supply Current 3

IDD3

*3

—2550

m

A—

Supply Current 4

IDD4

*4

—

0.5

2

m

A—

Notes:

1. Connect a 0.1 mF capacitor to the LCD bias generator and the voltage doubler.

2. The above values are guaranteed when the IC chip is not exposed to light.

(VDD = 0V, VSS = –3V, Ta = 25°C)

Parameter

Symbol Condition (Note)

Min.

Typ.

Max.

Unit

Applicable pin

Bias Voltage 1

VSS1

VSS2, 3 = –2.0V

–1.1

–1.0

–0.9

V

VSS1

Bias Voltage 2, 3

VSS2, 3

N1 = "H", N2 = "L"

contrast = "1"

–2.5

–2.15

–1.7

V

VSS2, 3

Bias Voltage 4

VSS4

VSS2, 3 = –2.0V

–3.1

–3.0

–2.9

V

VSS4

Bias Voltage 5

VSS5

VSS2, 3 = –2.0V

–4.2

–4.0

–3.8

V

VSS5

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