UPD75512GF datasheet(45/64 Pages) NEC

45 / 64 page

µPD75512(A)

MAIN SYSTEM CLOCK OSCILLATOR CIRCUIT CHARACTERISTICS

(Ta = -40 to +85

°C, VDD = 2.7 to 6.0 V)

Oscillator

Recommended

Item

Conditions

MIN.

TYP.

MAX.

Unit

Constants

Ceramic

Oscillation

VDD = osccillation

1.0

5.0

MHz

frequency(fX)*1

voltage range

Oscillation stabiliza- After VDD came to

tion time*2

MIN. value of

oscillation voltage

4ms

range

Crystal

Oscillation

1.0

4.19

5.0

MHz

frequency (fX)*1

Oscillation stabiliza- VDD = 4.5 to 6.0 V

tion time*2

External Clock

X1 input frequency

1.0

5.0

MHz

(fX)*1

X1 input high-,

low-level widths

(tXH, tXL)

100

500

SUBSYSTEM CLOCK OSCILLATOR CIRCUIT CHARACTERISTICS

(Ta = -40 to +85

°C, VDD = 2.7 to 6.0 V)

Oscillator

Recommended

Item

Conditions

MIN.

TYP.

MAX.

Unit

Constants

Crystal

Oscillation*1

32.768

kHz

frequency (fXT)

Oscillation stabiliza- VDD = 4.5 to 6.0 V

1.0

tion time*2

External Clock

XT1 input frequency

100

kHz

(fXT)*1

XT1 input high-,

low-level widths

µs

(tXTH, tXTL)

*1: Only to express the characteristics of the oscillator circuit. For instruction execution time, refer to AC

Characteristics.

2: Time required for oscillation to stabilize after VDD reaches the minimum value of the oscillation voltage

range or the STOP mode has been released.

3: When the oscillation frequency is 4.19 MHz

< fx ≤ 5.0 MHz, do not select PCC = 0011 as the instruction

execution time: otherwise, one machine cycle is set to less than 0.95

µs, falling short of the rated

minimum value of 0.95

µs.

PD74HCU04

XT1

XT2

XT1

XT2

Open

UPD75512GF Datasheet(PDF) 45 Page - NEC

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