BA4028B datasheet(5/6 Pages) ROHM

No de pièce	BA4028B

Description	BCD-to-decimal decoder

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Fabricant	ROHM [Rohm]

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5

Standard ICs

BA4028B

•Measurement circuits

VDD

VSS

VIN

TABLE

3

Q0

A

10

16

B

13

C

12

D

11

14

Q1

2

Q2

15

Q3

1

Q4

6

Q5

7

Q6

4

Q7

9

Q8

5

Q9

Fig. 1 DC characteristics measurement circuit

TEST

NO.

INPUT

OUTPUT

A

B

C

D

Pos.

Neg.

1VIN

VSS

Q1

Q0

Q6

Q4

Q7

Q3

Q9

Q1

Q2

Q0

Q5

Q1

Q8

Q0

Q4

Q0

Q3

Q2

2VSS

VIN

VDD

VSS

3VDD

VDD

VIN

VSS

4VDD

VSS

VIN

5VSS

VIN

VSS

6VDD

VSS

VIN

VSS

7VSS

VSS

VIN

8VSS

VSS

VIN

VSS

9VIN

VDD

VSS

VIN

OUTPUT

Pos.

OUTPUT

Neg.

VDD

TABLE

3

A

10

16

B

13

C

12

D

11

14

2

15

1

6

7

4

9

5

P.G.

Note: Connect CL = 50pF to each output pin.

8

VDD

VSS

Q0

Q1

Q2

Q3

Q4

Q5

Q6

Q7

Q8

Q9

Fig. 2 Switching characteristics measurement circuit

90%

50%

10%

20ns

90%

50%

10%

tPHL

VDD

Input

GND

Neg.

Pos.

Output

tTHL

tPLH

tTLH

Fig. 3 Switching time test waveform

TEST

NO.

INPUT

OUTPUT

A

B

C

D

Pos.

Neg.

1

2

3

4

5

6

7

8

9

P.G.

VSS

Q1

Q0

Q6

Q4

Q7

Q3

Q9

Q1

Q2

Q0

Q5

Q1

Q8

Q0

Q4

Q0

Q3

Q2

VSS

P.G.

VDD

VSS

VDD

P.G.

VSS

VDD

VSS

P.G.

VSS

P.G.

VSS

VDD

VSS

P.G.

VSS

P.G.

VSS

P.G.

VSS

P.G.

VDD

VSS

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