HD74LV174A 查看數據表（PDF） - Hitachi -> Renesas Electronics

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HD74LV174A

Hex D-type Flip-Flops with Clear

Hitachi -> Renesas Electronics 

HD74LV174A

Switching Characteristics

• VCC = 2.5 ± 0.2 V

Ta = 25°C

Ta = –40 to 85°C

Item

Symbol Min Typ Max Min

Maxi-

mum

clock

fre-

quency

fmax

55

115 — 50

45

90 — 40

Propa-

gation

delay

time

tPLH / tPHL

—

8.4 17.1 1.0

—

10.8 20.6 1.0

tPHL

—

6.3 17.3 1.0

—

8.2 21.9 1.0

Setup

tSU

time

8.5 — — 9.5

4.0 — — 4.0

Max

—

—

19.0

23.0

19.5

23.5

—

—

Unit

MHz

Test Conditions

CL = 15 pF

CL = 50 pF

ns

CL = 15 pF

CL = 50 pF

CL = 15 pF

CL = 50 pF

ns

Hold

th

time

Pulse

tW

width

–0.5 — — 0.0

—

ns

6.0 — — 6.5

—

ns

7.0 — — 7.0

—

FROM

(Input)

TO

(Output)

CLK

Q

CLR

Data before CLK↑

CLR inactive before

CLK↑

Data after CLK↑

CLR L

CLK H or L

6

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