CXP87452 datasheet(25/32 Pages) SONY

部品番号	CXP87452

部品情報	CMOS 8-bit Single Chip Microcomputer

PDF	32 Pages

Scroll/Zoom	100%

メーカー	SONY [Sony Corporation]

ホームページ	http://www.sony.co.jp

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25 / 32 page

– 25 –

CXP87452/87460

External interruption

high and low level widths

Reset input low level width

INT0

INT1

INT2

PJ0 to PJ7

RST

32/fc

µs

Item

Symbol

Condition

Min.

Max.

Unit

tIH

tIL

tRSL

(4) Interruption, reset input

(Ta = –20 to +75°C, VDD = 3.0 to 5.5V, Vss = 0V)

0.2VDD

0.8VDD

tIH

tIL

INT0

INT1

INT2

PJ0 to PJ7

(During standby release input)

(Falling edge)

Fig. 8. Interruption input timing

tRSL

0.2VDD

RST

Fig. 9. Reset input timing

Power supply rising edge

Power supply cut-off time

tOFF

VDD

Power on reset

Repetitive power on reset

0.05

Item

Symbol Pin

Condition

Min.

Max.

Unit

(5) Power on reset

Power on reset∗

(Ta = –20 to +75°C, VDD = 3.0 to 5.5V, Vss = 0V)

0.2V

3.0V

VDD

tOFF

The power supply should rise smoothly.

Fig. 10. Power on reset

∗ Specifies only when power on reset function is selected.

CXP87452 データシート(PDF) 25 Page - Sony Corporation

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