MC74HC151A

www.onsemi.com

3

Symbol

Parameter

V

Guaranteed Limit

Unit

− 55 to

25

°C

v 85°C

v 125°C

Maximum Propagation Delay, Input D to Output Y

(Figures 2 and 7)

2.0

4.5

6.0

170

34

29

215

43

37

255

51

43

ns

Maximum Propagation Delay, Input D to Output Y

(Figures 4 and 7)

2.0

4.5

6.0

185

37

31

230

46

39

280

56

48

ns

Maximum Propagation Delay, Input D to Output Y

(Figures 3 and 7)

2.0

4.5

6.0

185

37

31

230

46

39

280

56

48

ns

Maximum Propagation Delay, Input A to Output Y

(Figures 3 and 7)

2.0

4.5

6.0

205

41

35

255

51

43

310

62

53

ns

Maximum Propagation Delay, Input D to Output Y

(Figures 5 and 7)

2.0

4.5

6.0

125

25

21

155

31

26

190

38

32

ns

Maximum Propagation Delay, Strobe to Output Y

(Figures 6 and 7)

2.0

4.5

6.0

125

25

21

155

31

26

190

38

32

ns

Maximum Output Transition Time, Any Output

(Figures 2, 4 and 7)

2.0

4.5

6.0

75

15

13

95

19

16

110

22

19

ns

Maximum Input Capacitance

−

10

10

10

pF

Power Dissipation Capacitance (Per Package)

Typical @ 25

pF

36

PIN DESCRIPTIONS

INPUTS

D0, D1,

… , D7 (Pins 4, 3, 2, 1, 15, 14, 13, 12)

Data inputs. Data on any one of these eight binary inputs

may be selected to appear on the output.

CONTROL INPUTS

A0, A1, A2 (Pins 11, 10, 9)

Address inputs. The data on these pins are the binary

address of the selected input (see the Function Table).

Strobe (Pin 7)

Strobe. This input pin must be at a low level for the

selected data to appear at the outputs. If the Strobe pin is

high, the Y output is forced to a low level and the Y output

is forced to a high level.

OUTPUTS

Y, Y (Pins 5, 6)

Data outputs. The selected data is presented at these pins

in both true (Y output) and complemented (Y output) forms.