Philips 74hc hct153 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/HCT153

Dual 4-input multiplexer

Product specification
File under Integrated Circuits, IC06

December 1990

Philips Semiconductors Product specification

Dual 4-input multiplexer 74HC/HCT153

FEATURES

• Non-inverting output

• Separate enable for each output

• Common select inputs

• See ‘253” for 3-state version

• Permits multiplexing from n lines to

1 line

• Enable line provided for cascading
(n lines to 1 line)

• Output capability: standard

• ICC category: MSI

GENERAL DESCRIPTION

The 74HC/HCT153 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.

The 74HC/HCT153 have two
identical 4-input multiplexers which
select two bits of data from up to four
sources selected by common data
select inputs (S

, S1). The two 4-input

0

multiplexer circuits have individual
active LOW output enable inputs (1E,
2E) which can be used to strobe the
outputs independently. The outputs
(1Y, 2Y) are forced LOW when the
corresponding output enable inputs
are HIGH.

The “153” is the logic implementation
of a 2-pole, 4-position switch, where
the position of the switch is
determined by the logic levels applied
to S0 and S1.

The logic equations for the outputs
are:

1Y = 1E.(1I0.S1.S0+1I1.S1.S0+

+1I2.S1.S0+1I3.S1.S0)

2Y = 2E.(2I0.S1.S0+2I1.S1.S0+

+2I2.S1.S0+2I3.S1.S0)

The “153” can be used to move data
to a common output bus from a group
of registers. The state of the select
inputs would determine the particular
register from which the data came. An
alternative application is a function
generator. The device can generate
two functions or three variables. This
is useful for implementing highly
irregular random logic.

The “153” is similar to the “253” but
has standard outputs.

QUICK REFERENCE DATA

GND = 0 V; T

=25°C; tr=tf= 6 ns

amb

SYMBOL PARAMETER CONDITIONS

t

PHL

C
C

I
PD

/ t

PLH

propagation delay CL= 15 pF; VCC=5 V

1I

, 2In to nY 14 16 ns

n

to nY 15 17 ns

S

n

n

E to nY 10 11 ns
input capacitance 3.5 3.5 pF
power dissipation capacitance per multiplexer notes 1 and 2 30 30 pF

Notes

1. CPD is used to determine the dynamic power dissipation (PD in µW):
PD=CPD× V

2

× fi + ∑ (CL× V

CC

2

× fo) where:

CC

fi= input frequency in MHz
fo= output frequency in MHz
CL= output load capacitance in pF
VCC= supply voltage in V
∑ (CL× V

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

2

× fo) = sum of outputs

CC

CC

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

TYPICAL

HC HCT

ORDERING INFORMATION

See

“74HC/HCT/HCU/HCMOS Logic

Package Information”

.

UNIT

December 1990 2

Philips Semiconductors Product specification

Dual 4-input multiplexer 74HC/HCT153

PIN DESCRIPTION

PIN NO. SYMBOL NAME AND FUNCTION

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

E, 2E output enable inputs (active LOW)

, S

0

to 1I

0

to 2I

0

CC

1

3

3

common data select inputs
data inputs from source 1

data inputs from source 2
positive supply voltage

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

Fig.3 IEC logic symbol. Fig.4 Functional diagram.

December 1990 3