MSM66577 datasheet(16/34 Pages) OKI

tên linh kiện	MSM66577

Giải thích chi tiết về linh kiện	16-Bit Microcontroller

PDF	34 Pages

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16 / 34 page

PEDL66577-01

1Semiconductor

MSM66577 Family

16/34

(2) Multiplexed bus type

External program memory control

DD = 4.5 to 5.5 V, Ta = –30 to +70°C)

Parameter

Symbol

Condition

Min.

Max.

Unit

Cycle time

cyc

OSC = 30 MHz

33.3

—

Clock pulse width (HIGH level)

tφWH

—

Clock pulse width (LOW level)

tφWL

—

ALE pulse width

2 t

φ – 10

—

PSEN pulse width

2 t

φ – 15

—

PSEN pulse delay time

PAD

φ – 3

—

Low address setup time

ALS

φ – 15

—

Low address hold time

ALH

φ – 3

—

High address setup time

AHS

φ – 25

—

High address hold time

AHH

0—

Instruction setup time

—

Instruction hold time

L = 50 pF

φ – 3

Note: t

φ = t

cyc/2

cyc

INST0 to 7

tφ

CPUCLK

PSEN

A8 to A19

AD0 to AD7

ALE

PC0 to 7

PC8 to 19

tφ

PAD

ALS

ALH

AHS

AHH

Bus timing during no wait cycle time

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