CDP1802A 查看數據表（PDF） - Intersil

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CDP1802A

CMOS 8-Bit Microprocessors

Intersil 

CDP1802A, CDP1802AC, CDP1802BC

Timing Specifications as a function of T(T = 1/fCLOCK) at TA = -40 to +85oC, Except as Noted

TEST CONDITIONS

CDP1802A,

CDP1802AC

CDP1802BC

PARAMETERS

SYMBOL

Required Memory Access Time Ad-

dress to Data

tACC

VCC (V)

5

5

VDD (V)

5

10

MIN

5T-375

5T-250

(NOTE 1)

TYP

5T-250

5T-150

MIN

5T-225

-

(NOTE 1)

TYP

5T-175

-

10

10

5T-190 5T-100

-

-

MRD to TPA

tSU

5

5

T/2-25

T/2-18

T/2-20

T/2-15

5

10

T/2-20

T/2-15

-

-

10

10

T/2-15

T/2-10

-

-

NOTE:

1. Typical values are for TA = +25oC and nominal VDD.

UNITS

ns

ns

ns

ns

ns

ns

Timing Waveforms

CLOCK

FETCH (READ)

EXECUTE (WRITE)

00 01 10 11 20 21 30 31 40 41 50 51 60 61 70 71 00 01 10 11 20 21 30 31 40 41 50 51 60 61 70 71 00

ADDRESS

HI BYTE

LOW BYTE

HI BYTE

LOW BYTE

TPA

TPB

MRD

MWR

DATA

VALID INPUT DATA

VALID OUTPUT DATA

FIGURE 3. BASIC DC TIMING WAVEFORM, ONE INSTRUCTION CYCLE

3-11

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