ML66525B 데이터 시트보기 (PDF) - Oki Electric Industry

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ML66525B

16-Bit Microcontroller

Oki Electric Industry 

OKI Semiconductor

FEDL66525-02

ML66525 Family

AC Characteristics (Except USB port)

(1) External program memory control

(VDD_CORE = VDD_IO = VREF = 2.4 to 3.6 V, GND = AGND = 0 V, Ta = –30 to +70°C)

Parameter

Symbol

Condition

Min.

Max.

Unit

Cycle time

tcyc

fOSC = 24 MHz

41.67

—

Clock pulse width (HIGH level)

tφWH

Clock pulse width (LOW level)

tφWL

PSENn pulse width

tPW

16.25

—

16.25

—

(2 + 2n)tφ – 25

—

PSENn pulse delay time

Address setup time

Address hold time

tPD

VDD_CORE =

tAS

CL = 50 pF

tAH

—

2tφ – 25

–10

55

ns

—

—

Instruction setup time

tIS

40

—

Instruction hold time

tIH

Read data access time

tACC

0

—

—

(3 + 2n)tφ – 50

(Note) tφ = tcyc/2

n = 0 to 3 ( n wait cycles inserted)

CPUCLK

PSENn

A0 to A19

D0 to D7

tcyc

tφWH

tφWL

tPD

tPW

PC0 to 19

tAS

tAH

INST0 to 7

tACC

tIS

tIH

Bus timing during no wait cycle time

16/27

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