CD4099BMS

FN3333 Rev 0.00

Page 7 of 10

December 1992

FIGURE 2. DEFINITION OF WRITE DISABLE ON TIME

FIGURE 3. MASTER TIMING DIAGRAM

FIGURE 4. 1 OF 16 DECODER/DEMULTIPLEXER

FIGURE 5. MULTIPLE SELECTION DECODING - 4 x 4 CROSSPOINT SWITCH

70%

30%

70%

30%

70%

tW

A0

A1

A2

WD

MODE SELECTION

WD

R

ADDRESSED

LATCH

UNADDRESSED

LATCH

0

0

Follows Data

Holds Previous

State

0

1

Follows Data

Reset to “0”

(Active High 8-Channel Demultiplexer)

1

0

Holds Previous State

1

1

Reset to “0”

Reset to “0”

WD = Write Disable

R = Reset

tW

8

tW

4

tS

6

tH

7

tW

5

tP

2

tP

3

tP

1

tP

9

A0, A1, A2

WRITE DISABLE

DATA

RESET

Q0

Q7

tP

Q7

tP

tP

A0

A1

A2

A3

DATA IN

Q7

Q6

Q5

Q4

Q3

Q2

Q1

Q0

A0

A1

A2

WD

DATA

9

10

11

12

13

14

15

1

DO 9

DO 10

DO 11

DO 12

DO 13

DO 14

DO 15

DO 16

5

6

7

4

3

2

VDD

*

Q7

Q6

Q5

Q4

Q3

Q2

Q1

Q0

A0

A1

A2

WD

DATA

9

10

11

12

13

14

15

1

DO 1

DO 2

DO 3

DO 4

DO 5

DO 6

DO 7

DO 8

5

6

7

4

3

R

2

VDD

R

*1/6 CD4069

Q0

Q1

R

WD

D

0

1

2

3

X

IN/OUT

01

2

3

Y

IN/OUT

1/4 CD4016

S1

S2

S0

S5

CD4099BMS

Q15

R

WD

D

CD4099BMS

DATA

A0

A1

A2

A3

WD

WD