MSM6545 datasheet(8/13 Pages) OKI

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MSM6545/6575/6545L/6575L

¡ Semiconductor

ABSOLUTE MAXIMUM RATINGS (MSM6545L/6575L, 3.0 V, BUF = "1")

Parameter

Symbol

Condition

Rating

Unit

Power Supply Voltage

VSS2

Ta = 25°C

–6.0 to +0.3

Input Voltage

VIN

VSS2 – 0.3 to +0.3

Output Voltage

VOUT

VSS2 – 0.3 to +0.3

Storage Temperature

TSTG

—

–55 to +125

°C

VDD = 0 V (VSS2 = battery voltage)

Note: The input of the constant voltage circuit is directly connected to the power supply (VSS2).

RECOMMENDED OPERATING CONDITIONS (MSM6545L/6575L, 3.0 V, BUF = "1")

Parameter

Symbol

Condition

Range

Unit

Operating Voltage

Vop

—

–3.5 to –0.9

—

Operating Temperature

Top

–20 to +70

°C

—

Oscillation Frequency

fOSC

32.768

kHz

—

VDD = 0 V (VSS2 = battery voltage)

Note: The input of the constant voltage circuit is directly connected to the power supply (VSS2).

ELECTRICAL CHARACTERISTICS (MSM6545L/6575L, 3.0 V, BUF = "1")

Parameter

Symbol

Condition

Min.

Applied Pin

Typ. Max. Unit

Power Supply Current

IDD

—

1.5

—

Oscillation Start Voltage

–VOSC

Within 2 seconds

—

VSS2

—

0.9

Output Current 1

–IOH1

VO = –0.5 V

500

PORT0 to PORT6*2

SOUT, SCLK

——

IOL1

VO = –2.5 V

500

—

Output Current 2

–IOH2

VO = –0.5 V

——

IOL2

VO = –2.5 V

—

Input Current 1

VI = 0 V, in the input state,

with pull-down resistor

PORT0 to

PORT6 *2

100

200

Input Leakage Current

ÁIIL Á

VI = 0 V, –3 V, in the input state,

without pull-down resistor

—

PORT0 to PORT7*2

SIN, SOUT, SCLK

—1

Input Current 3

IIH3

VI = 0 V, with pull-down

resistor

200

RESET

TEST1 to TEST3

750 1500

Input Voltage

–VIH

—

All input pins

—

0.5

–VIL

2.5

—

VDD = 0 V, VSS1 = –1.5 V, VSS2 = –3.0 V (battery voltage), fOSC = 32.768 kHz, CX = 35 pF, Ta = 25°C

IIH1

*1 Depends on the program. (Values in the above table are applied in the case where the

software duty is about 5%.)

*2 PORT0 = P0.0 to P0.3, PORT1 = P1.0 to P1.3, PORT2 = P2.0 to P2.3, PORT3 = P3.0 to P3.3,

PORT4 = P4.0 to P4.3, PORT5 = P5.0 to P5.3, PORT6 = P6.0 to P6.3, PORT7 = P7.0 to P7.3

Note: The input of the constant voltage circuit is directly connected to the power supply (VSS2).

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