UPD30121 datasheet(26/76 Pages) NEC

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Data Sheet U14691EJ1V0DS00

µµµµPD30121

Operating Conditions

(1) 131 MHz model

Parameter

Symbol

Condition

MIN.

MAX.

Unit

VDD2

2.5 V (VDDP, VDDPD, VDD2)

2.3

2.7

Supply voltage

VDD3

3.3 V (CVDD, DVDD, AVDD, PIUVDD, VDD3)

3.0

3.45

Ambient temperature

−10

+70

°C

Oscillation start voltage

Note 1

VDDS

3.0

Oscillation hold voltage

Note 2

VDDH1

2.5

Oscillation hold voltage

Note 3

VDDH2

3.0

Notes 1. This is a voltage at which oscillation is always started after power application, and is applied to

oscillators of 32.768 kHz and 18.432 MHz.

2. This is a voltage at which oscillation can be guaranteed if the voltage is lowered from the normal

operation level, and is applied to an oscillator of 32.768 kHz.

3. This is a voltage at which oscillation can be guaranteed if the voltage is lowered from the normal

operation level, and is applied to an oscillator of 18.432 MHz.

(2) 168 MHz model

Parameter

Symbol

Condition

MIN.

MAX.

Unit

Supply voltage

VDD2

2.5 V (VDDP, VDDPD, VDD2)

2.6

2.7

Note 1

VDD3

3.3 V (CVDD, DVDD, AVDD, PIUVDD, VDD3)

3.0

3.45

Ambient temperature

−10

+70

°C

Oscillation start voltage

Note 2

VDDS

3.0

Oscillation start voltage

Note 3

VDDH1

2.5

Oscillation start voltage

Note 4

VDDH2

3.0

Notes 1. If VDD2 exceeds 2.7 V, be sure to keep the time for which the voltage is exceeded to less than 10 % of

the total operating time of the VR4121, and the maximum value of VDD2 to less than 2.8 V.

2. This is a voltage at which oscillation is always started after power application, and is applied to

oscillators of 32.768 kHz and 18.432 MHz.

3. This is a voltage at which oscillation can be guaranteed if the voltage is lowered from the normal

operation level, and is applied to an oscillator of 32.768 kHz.

4. This is a voltage at which oscillation can be guaranteed if the voltage is lowered from the normal

operation level, and is applied to an oscillator of 18.432 MHz.

Capacitance (TA = 25

°°°°C, VDD = 0 V)

Parameter

Symbol

Condition

MIN.

MAX.

Unit

Input capacitance

I/O capacitance

CIO

fC = 1 MHz

Unmeasured pins returned to 0 V.

Caution Precision tests have not been performed. Only guaranteed as design characteristics.

UPD30121 Datasheet(PDF) 26 Page - NEC

UPD30121 Datasheet(HTML) 26 Page - NEC

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