HD74HC74FP(2008) 查看數據表（PDF） - Renesas Electronics

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HD74HC74FP
(Rev.:2008)

Dual D-type Flip-Flops (with Preset and Clear)

Renesas Electronics 

HD74HC74

Switching Characteristics

Item

Hold time

Removal time

Pulse width

Output rise/fall

time

Input capacitance

Symbol VCC (V)

2.0

th

4.5

6.0

2.0

trem

4.5

6.0

2.0

tw

4.5

6.0

2.0

tTLH, tTHL 4.5

6.0

Cin

—

Ta = 25°C

Ta = –40 to +85°C

Min Typ Max Min Max

5 ——

5

—

5

0—

5

—

5 –5 —

5

—

25 — —

31

—

5 ——

6

—

4 ——

5

—

80 — — 100

—

16 8 —

20

—

14 — —

17

—

— — 75

—

95

— 5 15

—

19

— — 13

—

16

— 5 10

—

10

(CL = 50 pF, Input tr = tf = 6 ns)

Unit

Test Conditions

ns Clock to Data

ns Preset, Clear to Clock

ns Clock, Preset, Clear

ns

pF

Test Circuit

VCC

VCC

Input

Pulse generator

Zout = 50 Ω

Input

Pulse generator

Zout = 50 Ω

Output

Clock Q

PR

CL = 50 pF

D

Output

Clear Q

CL = 50 pF

Note: CL includes the probe and jig capacitance.

REJ03D0549-0300 Rev.3.00 Oct 27, 2008

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