DS5000 datasheet(13/19 Pages) DALLAS

13 / 19 page

DS5000(T)

021998 13/19

AC CHARACTERISTICS (cont’d)

EXTERNAL CLOCK DRIVE

(tA = 0°C to70°C; VCC = 5V + 5%)

PARAMETER

SYMBOL

MIN

MAX

UNITS

External Clock High Time

@12 MHz

@16 MHz

tCLKHPW

External Clock Low Time

@12 MHz

@16 MHz

tCLKLPW

External Clock Rise Time

@12 MHz

@16 MHz

tCLKR

External Clock Fall Time

@12 MHz

@16 MHz

tCLKF

AC CHARACTERISTICS (cont’d)

SERIAL PORT TIMING – MODE 0

(tA = 0°C to70°C; VCC = 5V + 5%)

PARAMETER

SYMBOL

MIN

MAX

UNITS

Serial Port Cycle Time

tSPCLK

12tCLK

µs

Output Data Setup to Rising Clock Edge

tDOCH

10tCLK –133

Output Data Hold after Rising Clock Edge

tCHDO

2tCLK –117

Clock Rising Edge to Input Data Valid

tCHDV

10tCLK –133

Input Data Hold after Rising Clock Edge

tCHDIV

SERIAL PORT TIMING – MODE 0

INSTRUCTION

ALE

CLOCK

DATA OUT

INPUT DATA

SET TI

SET RI

VALID

CLEAR RI

WRITE TO

SBUF REGISTER

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