Philips 74hc hct4051 DATASHEETS

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/HCT4051

8-channel analog
multiplexer/demultiplexer

Product specification
File under Integrated Circuits, IC06

December 1990

Philips Semiconductors Product specification

8-channel analog
multiplexer/demultiplexer

FEATURES

• Wide analog input voltage range: ± 5V.

• Low “ON” resistance:

80 Ω (typ.) at VCC− VEE= 4.5 V
70 Ω (typ.) at VCC− VEE= 6.0 V
60 Ω (typ.) at VCC− VEE= 9.0 V

• Logic level translation:
to enable 5 V logic to communicate with ± 5 V analog
signals

• Typical “break before make” built in

• Output capability: non-standard

• ICC category: MSI

GENERAL DESCRIPTION

The 74HC/HCT4051 are high-speed Si-gate CMOS
devices and are pin compatible with the “4051” of the

QUICK REFERENCE DATA

VEE= GND = 0 V; T

=25°C; tr=tf= 6 ns

amb

74HC/HCT4051

“4000B” series. They are specified in compliance with
JEDEC standard no. 7A.

The 74HC/HCT4051 are 8-channel analog
multiplexers/demultiplexers with three digital select inputs

to S2), an active LOW enable input (E), eight

(S

0

independent inputs/outputs (Y0 to Y7) and a common
input/output (Z).

With E LOW, one of the eight switches is selected (low
impedance ON-state) by S0 to S2. With E HIGH, all
switches are in the high impedance OFF-state,
independent of S0 to S2.

VCC and GND are the supply voltage pins for the digital
control inputs (S0 to S2, and E). The VCC to GND ranges
are 2.0 to 10.0 V for HC and 4.5 to 5.5 V for HCT. The
analog inputs/outputs (Y0 to Y7, and Z) can swing between
VCC as a positive limit and VEE as a negative limit.
VCC− VEE may not exceed 10.0 V.

For operation as a digital multiplexer/demultiplexer, VEE is
connected to GND (typically ground).

SYMBOL PARAMETER CONDITIONS

t

PZH

t

PHZ

C
C
C

I
PD
S

/ t

PZL

/ t

PLZ

turn “ON” time CL= 15 pF; RL=1kΩ;

E to V
S

to V

n

os

os

VCC=5V

turn “OFF” time

E to V

os

S

to V

n

os

input capacitance 3.5 3.5 pF
power dissipation capacitance per switch notes 1 and 2 25 25 pF
max. switch capacitance

independent (Y) 5 5 pF
common (Z) 25 25 pF

Notes

1. C

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

PD

PD=CPD× V

2

× fi+ ∑{ (CL+CS)×V

CC

2

× fo} where:

CC

fi= input frequency in MHz
fo= output frequency in MHz
∑ {(CL+CS)×V

2

× fo} = sum of outputs

CC

CL= output load capacitance in pF
CS = max. switch 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

22 22 ns
20 24 ns

18 16 ns
19 20 ns

December 1990 2

Philips Semiconductors Product specification

8-channel analog multiplexer/demultiplexer 74HC/HCT4051

ORDERING INFORMATION

See

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

PIN DESCRIPTION

PIN NO. SYMBOL NAME AND FUNCTION

3 Z common input/output
6
7V

E enable input (active LOW)

EE

negative supply voltage
8 GND ground (0 V)
11, 10, 9 S
13, 14, 15, 12, 1, 5, 2, 4 Y
16 V

to S

0

to Y

0
CC

2
7

select inputs

independent inputs/outputs

positive supply voltage

.

Fig.1 Pin configuration. Fig.2 Logic symbol. Fig.3 IEC logic symbol.

December 1990 3

Philips Semiconductors Product specification

8-channel analog multiplexer/demultiplexer 74HC/HCT4051

APPLICATIONS

• Analog multiplexing and demultiplexing

• Digital multiplexing and demultiplexing

• Signal gating

FUNCTION TABLE

Fig.4 Functional diagram.

INPUTS

ES

L
L
L
L

L
L
L
L

2

L
L
L
L

H
H
H
H

S

1

L

L
H
H

L

L
H
H

S

0

L

H

L

H

L

H

L

H

H X X X none

Notes

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

channel

ON

Y

−Z

0

Y

−Z

1

Y

−Z

2

Y

−Z

3

Y

−Z

4

Y

−Z

5

Y

−Z

6

Y

−Z

7

Fig.5 Schematic diagram (one switch).

December 1990 4

Philips Semiconductors Product specification

8-channel analog multiplexer/demultiplexer 74HC/HCT4051

RATINGS

Limiting values in accordance with the Absolute Maximum System (IEC 134)
Voltages are referenced to VEE= GND (ground=0V)

SYMBOL PARAMETER MIN. MAX. UNIT CONDITIONS

V

CC

±I

IK

±I

SK

±I

S

±I

EE

±I

; ±I

CC

T

stg

P

tot

P

S

DC supply voltage −0.5 +11.0 V
DC digital input diode current 20 mA for VI< −0.5 V or VI> VCC + 0.5 V
DC switch diode current 20 mA for VS< −0.5 V or VS> VCC+ 0.5 V
DC switch current 25 mA for −0.5 V < VS<VCC + 0.5 V
DC VEE current 20 mA
DC VCC or GND current 50 mA

GND

storage temperature range −65 +150 °C
power dissipation per package for temperature range: −40 to +125 °C

74HC/HCT
plastic DIL 750 mW above +70 °C: derate linearly with 12 mW/K
plastic mini-pack (SO) 500 mW above +70 °C: derate linearly with 8 mW/K
power dissipation per switch 100 mW

Note to ratings

1. To avoid drawing V

current out of terminal Z, when switch current flows in terminals Yn, the voltage drop across

CC

the bidirectional switch must not exceed 0.4 V. If the switch current flows into terminal Z, no VCC current will flow out
of terminals Yn. In this case there is no limit for the voltage drop across the switch, but the voltages at Yn and Z may
not exceed VCC or VEE.

RECOMMENDED OPERATING CONDITIONS

74HC 74HCT

SYMBOL PARAMETER

V

CC

V

CC

V

I

V

S

T

amb

DC supply voltage VCC − GND 2.0 5.0 10.0 4.5 5.0 5.5 V see Figs 6 and 7
DC supply voltage VCC − V
DC input voltage range GND V
DC switch voltage range V
operating ambient temperature

range

T

amb

operating ambient temperature

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

2.0 5.0 10.0 2.0 5.0 10.0 V see Figs 6 and 7

EE

GND V

CC

EE

V

CCVEE

V

−40 +85 −40 +85 °C

−40 +125 −40 +125 °C

UNIT CONDITIONS

V

CC

V

CC

see DC and AC
CHARACTERISTICS

range

t

, t

r

f

input rise and fall times

6.0

1000
500
400
250

6.0 500 ns

VCC= 2.0 V
VCC= 4.5 V
VCC= 6.0 V
VCC= 10.0 V

December 1990 5