MSM66579 데이터 시트보기 (PDF) - Oki Electric Industry

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MSM66579

16-Bit Microcontroller

Oki Electric Industry 

1Semiconductor

PEDL66579-03

MSM66579 Family

(2) Multiplexed bus type

External program memory control

Parameter

Cycle time

Clock pulse width (HIGH level)

Clock pulse width (LOW level)

ALE pulse width

PSEN pulse width

PSEN pulse delay time

Low address setup time

Low address hold time

High address setup time

High address hold time

Instruction setup time

Instruction hold time

Symbol

tcyc

tφWH

tφWL

TAW

tPW

tPAD

tALS

tALH

tAHS

tAHH

tIS

tIH

Condition

fOSC = 30 MHz

CL = 50 pF

tcyc

(VDD = 4.5 to 5.5 V, Ta = –30 to +70°C)

Min.

Max.

Unit

33.3

—

13

—

13

—

2 tφ – 10

—

2 tφ – 14

—

tφ – 10

tφ + 10

ns

2tφ – 20

2tφ + 3

tφ – 10

tφ + 10

3tφ – 30

4tφ + 3

0

tφ + 10

24

—

0

tφ – 3

Note: tφ = tcyc/2

CPUCLK

ALE

PSEN

AD0 to AD7

A8 to A19

tφWH

tφWL

tAW

tPAD

PC0 to 7

tALS

tALH

PC8 to 19

tAHS

tPW

INST0 to 7

tIS

tIH

tAHH

Bus timing during no wait cycle time

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