HD74HC374 查看數據表（PDF） - Renesas Electronics

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HD74HC374

Octal D-type Flip-Flops (with 3-state outputs) / Octal D-type Flip-Flops (with inverted 3-state outputs)

Renesas Electronics 

HD74HC374, HD74HC534

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

Item

Maximum clock

frequency

Propagation delay

time

Output enable

time

Output disable

time

Setup time

Hold time

Pulse width

Output rise/fall

time

Input capacitance

Symbol VCC (V)

fmax

2.0

4.5

6.0

tPHL

2.0

tPLH

4.5

6.0

tZL

2.0

4.5

6.0

tZH

2.0

4.5

6.0

tLZ

2.0

4.5

6.0

tHZ

2.0

4.5

6.0

tsu

2.0

4.5

6.0

th

2.0

4.5

6.0

tw

2.0

4.5

6.0

tTLH

2.0

tTHL

4.5

6.0

Cin

—

Ta = 25°C

Min Typ Max

—— 6

— — 30

— — 35

— — 140

— 18 28

— — 24

— — 150

— 11 30

— — 26

— — 150

— 14 30

— — 26

— — 150

— 13 30

— — 26

— — 150

— 16 30

— — 26

100 — —

20 1 —

17 — —

25 — —

5

1—

5 ——

80 — —

16 6 —

14 — —

— — 60

— 4 12

— — 10

— 5 10

Ta = –40 to +85°C

Min

Max Unit

Test Conditions

—

5 MHz

—

24

—

28

—

175 ns

—

35

—

30

—

190 ns

—

38

—

33

—

190 ns

—

38

—

33

—

190 ns

—

38

—

33

—

190 ns

—

38

—

33

125

—

ns Data to Clock

25

—

21

—

31

—

ns Clock to Data

6

—

6

—

100

—

ns Clock or Output control

20

—

17

—

—

75

ns

—

15

—

13

—

10

pF

Test Circuit

VCC

Input

Pulse Generator

Zout = 50 Ω

Input

Pulse Generator

Zout = 50 Ω

VCC

Output

OC 1Q to 8Q

or

1Q to 8Q

1D to 8D

Clock

1 k Ω S1

CL =

50 pF

OPEN

GND

VCC

TEST

tPLH / t PHL

tZH/ t HZ

tZL / t LZ

S1

OPEN

GND

VCC

Note : 1. CL includes probe and jig capacitance.

Rev.2.00 Mar 30, 2006 page 5 of 8

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