BU4042B datasheet(3/4 Pages) ROHM

部品番号	BU4042B

部品情報	Quad D latch

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3

Standard ICs

BU4042B

Switching characteristics (unless otherwise noted, Ta = 25°C, CL = 50pF, VSS = 0V)

Parameter

Symbol

Min.

Typ.

Max.

Unit

Conditions

Measurement circuit

tTLH

—

180

—

ns

5

—

Fig.1

—

90

—

10

—

65

—

15

tTHL

—

100

—

ns

5

—

Fig.1

—

50

—

10

—

40

—

15

Propagation delay time

tPLH

tPHL

—

220

—

ns

5

—

Fig.1

—

90

—

10

—

70

—

15

Propagation delay time

CLOCK

→Q, Q

tPLH

tPHL

—

220

—

ns

5

—

Fig.2

—

90

—

10

—

70

—

15

Minimum clock pulse width

tWH

tWL

—

150

—

ns

5

—

Fig.2

—

50

—

10

—

40

—

15

Hold time

tH

—

50

—

ns

5

—

Fig.2

—

25

—

10

—

20

—

15

Setup time

tSU

—

50

—

ns

5

—

Fig.2

—

20

—

10

—

5

—

15

Input capacitance

CIN

—

5

—

pF

——

—

VDD (V)

Output fall time

Output rise time

D

→Q, Q

•Measurement circuits

VDD

VSS

CK

5

16

POL

6

D1

4

D2

D3

7

8

D4

14

2

Q1

3

Q1

10

Q2

9

Q2

11

Q3

12

Q3

1

Q4

5

Q4

P.G.

13

Fig. 1 (a) Switching characteristics measurement circuit!

Note: Connect CL = 50pF to each of the output pins.

20ns

tPLH

tTLH

D

tTHL

tPHL

tTHL

tTLH

Q

Fig. 1 (b) Switching time measurement waveform!

同様の部品番号 - BU4042B

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同様の説明 - BU4042B

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