UPD78323LP datasheet(64/86 Pages) NEC

номер детали	UPD78323LP

подробное описание детали	16/8-BIT SINGLE-CHIP MICROCONTROLLER

PDF	86 Pages

Scroll/Zoom	100%

производитель	NEC [NEC]

домашняя страница	http://www.nec.com/

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64 / 86 page

µPD78323, 78324

OSCILLATOR CHARACTERISTICS (TA = –10 to +70

°C, VDD = +5 V ±10 %, VSS = 0 V)

Parameter

Oscillation frequency (fXX)

X1 input frequency (fX)

X1 input rise/fall time (tXR, tXF)

X1 input high/low level width

(tWXH , tWXL)

MIN.

Unit

MHz

MAX.

Recommended Circuit

HCMOS

Invertor

Resonator

Ceramic resonator

crystal resonator

External clock

HCMOS

Invertor

Open

VSS

Caution

When using the system clock oscillation circuit, wire the part encircled in the dotted line in the following

manner to avoid the influence of the wiring capacity, etc.

• Make the wiring as short as possible.

• Avoid intersecting other signal conductors. Avoid approaching lines in which very high fluctuating

currents run.

• Make sure that the grounding point of the oscillation circuit capacitor always has the same electrical

potential as VSS. Avoid grounding with a grand pattern in which very high currents run.

• Do not fetch signals from the oscillation circuit.

UPD78323LP датащи(PDF) 64 Page - NEC