Datasheet 74 hct151 DATASHEETS (Philips)

INTEGRATED CIRCUITS

DATA SH EET

For a complete data sheet, please also download:

•The IC06 74HC/HCT/HCU/HCMOS Logic Family Specifications

•The IC06 74HC/HCT/HCU/HCMOS Logic Package Information

•The IC06 74HC/HCT/HCU/HCMOS Logic Package Outlines

74HC/HCT151

8-input multiplexer

Product speciﬁcation File under Integrated Circuits, IC06

December 1990

Philips Semiconductors Product speciﬁcation

8-input multiplexer 74HC/HCT151

FEATURES

• True and complement outputs

• Multifunction capability

• Permits multiplexing from n lines to 1 line

• Non-inverting data path

• See the “251” for the 3-state version

• Output capability: standard

• ICC category: MSI

GENERAL DESCRIPTION

The 74HC/HCT151 are high-speed Si-gate CMOS devices and are pin compatible with low power Schottky TTL (LSTTL). They are specified in compliance with JEDEC standard no. 7A.

QUICK REFERENCE DATA

GND = 0 V; T

=25°C; tr=tf= 6 ns

amb

SYMBOL PARAMETER CONDITIONS

t

PHL

/ t

PLH

propagation delay CL= 15 pF; VCC=5 V

to Y, Y 1719ns

I

n

S

to Y, Y 1920ns

n

E to Y 1213ns E to Y 1418ns

C

I

C

PD

input capacitance 3.5 3.5 pF power dissipation capacitance per package notes 1 and 2 40 40 pF

Notes

1. C

is used to determine the dynamic power dissipation (PD in µW):

PD

PD=CPD× V

2

× fi+∑(CL× V

CC

2

× fo) where:

CC

fi= input frequency in MHz fo= output frequency in MHz ∑ (CL× V

2

× fo) = sum of outputs

CC

CL= output load capacitance in pF VCC= supply voltage in V

2. For HC the condition is VI= GND to V

CC

For HCT the condition is VI= GND to VCC− 1.5 V

TYPICAL

UNIT

HC HCT

ORDERING INFORMATION

“74HC/HCT/HCU/HCMOS Logic Package Information”

See

December 1990 2

.

Philips Semiconductors Product speciﬁcation

8-input multiplexer 74HC/HCT151

PIN DESCRIPTION

PIN NO. SYMBOL NAME AND FUNCTION

4, 3, 2, 1, 15, 14, 13, 12 I 5 Y multiplexer output 6 7 8 GND ground (0 V) 11, 10, 9 S 16 V

0

to I

7

multiplexer inputs

Y complementary multiplexer output E enable input (active LOW)

, S1, S2select inputs

0 CC

positive supply voltage

Fig.1 Pin configuration. Fig.2 Logic symbol.

Fig.3 IEC logic symbol.

December 1990 3

Philips Semiconductors Product speciﬁcation

8-input multiplexer 74HC/HCT151

FUNCTION TABLE

INPUTS OUTPUTS

ES

2

S

1

S

0

I

0

I

1

I

2

I

3

I

4

I

5

I

6

I

7

YY

HXXXXXXXXXXXHL

L L L L

H H H H

L L L L

H H H H

L L L L

H H H H

L

L H H

L

L H H

L

L H H

L

L H H

L H X X

X X X X

X X L H

X X X X

L H X X

X X X X

X X

L

H X

X X X

X X X X

L H X X

X X X X

X X L H

X X X X

L H X X

X X X X

X X L H

H L H L

Notes

1. H = HIGH voltage level L = LOW voltage level X = don’t care.

L

H

L

H

L

H

L

H

L

H

L

H

L

H

L

H

Fig.4 Functional diagram. Fig.5 Logic diagram.

December 1990 4

Philips Semiconductors Product speciﬁcation

8-input multiplexer 74HC/HCT151

DC CHARACTERISTICS FOR 74HC

For the DC characteristics see

“74HC/HCT/HCU/HCMOS Logic Family Specifications”

Output capability: standard ICC category: MSI

AC CHARACTERISTICS FOR 74HC

GND = 0 V; t

= 6 ns; CL= 50 pF

r=tf

SYMBOL PARAMETER

t

PHL

t

PHL

t

PHL

t

PHL

t

PHL

t

PHL

t

THL

/ t

propagation delay

PLH

In to Y

propagation delay

PLH

In to Y

propagation delay

PLH

Sn to Y

propagation delay

PLH

Sn to Y

propagation delay

PLH

E to Y

propagation delay

PLH

E to Y

output transition time

TLH

(°C)

T

amb

74HC

+25 −40 to +85 −40 to+125

min. typ. max. min. max. min. max.

52 19 15

58 21 17

61 22 18

41 15 12

47 17 14

19 7 6

170 34 29

185 37 31

205 41 35

125 25 21

145 29 25

75 15 13

215 43 37

230 46 39

255 51 43

155 31 26

180 36 31

95 19 16

255 51 43

280 56 48

310 62 53

190 38 32

220 44 38

110 22 19

.

UNIT

ns

TEST CONDITIONS

WAVEFORMS

V

CC

(V)

2.0

4.5

Fig.6

6.0

2.0

4.5

Fig.6

6.0

2.0

4.5

Fig.7

6.0

2.0

4.5

Fig.7

6.0

2.0

4.5

Fig.7

6.0

2.0

4.5

Fig.7

6.0

2.0

4.5

Figs 6 and 7

6.0

December 1990 5

Philips Semiconductors Product speciﬁcation

8-input multiplexer 74HC/HCT151

DC CHARACTERISTICS FOR 74HCT

For the DC characteristics see

“74HC/HCT/HCU/HCMOS Logic Family Specifications”

.

Output capability: standard ICC category: MSI

Note to HCT types

The value of additional quiescent supply current (∆I

) for a unit load of 1 is given in the family specifications.

CC

To determine ∆ICC per input, multiply this value by the unit load coefficient shown in the table below.

INPUT UNIT LOAD COEFFICIENT

I

n

S

n

E

0.45

1.50

0.30

AC CHARACTERISTICS FOR 74HCT

GND = 0 V; t

= 6 ns; CL= 50 pF

r=tf

T

amb

(°C)

TEST CONDITIONS

74HCT

SYMBOL PARAMETER

+25 −40 to +85 −40 to +125

UNIT

V

(V)

CC

min. typ. max. min. max. min. max.

t

PHL

t

PHL

t

PHL

t

PHL

t

PHL

t

PHL

t

THL

/ t

propagation delay

PLH

In to Y

propagation delay

PLH

In to Y

propagation delay

PLH

Sn to Y

propagation delay

PLH

Sn to Y

propagation delay

PLH

E to Y

propagation delay

PLH

E to Y

output transition time 7 15 19 22 ns 4.5

TLH

22 38 48 57 ns 4.5 Fig.6

23 41 51 62 ns 4.5 Fig.7

25 43 54 65 ns 4.5 Fig.7

16 29 36 44 ns 4.5 Fig.7

21 36 45 54 ns 4.5 Fig.7

WAVEFORMS

Figs 6 and 7

December 1990 6

Philips Semiconductors Product speciﬁcation

8-input multiplexer 74HC/HCT151

AC WAVEFORMS

(1) HC : VM= 50%; VI= GND to VCC.

HCT : VM= 1.3 V; VI= GND to 3 V.

Fig.6 Waveforms showing the multiplexer input (In) to outputs (Y and Y) propagation delays and the output

transition times.

(1) HC : VM= 50%; VI= GND to VCC.

HCT : VM= 1.3 V; VI= GND to 3 V.

Fig.7 Waveforms showing the select input (Sn) and enable input (E) to outputs (Y and Y) propagation delays

and the output transition times.

PACKAGE OUTLINES

See

“74HC/HCT/HCU/HCMOS Logic Package Outlines”

.

December 1990 7