Datasheet M74HC4028 Datasheet (SGS Thomson Microelectronics)

.HIGH SPEED

tPD= 18 ns(TYP.) AT VCC=5V

.LOWPOWERDISSIPATION

ICC=4µA(MAX.) AT TA=25°C

.HIGH NOISEIMMUNITY

V

NIH=VNIL

=28%VCC(MIN.)

.OUTPUT DRIVE CAPABILITY

10 LSTTL LOADS

.SYMMETRICALOUTPUT IMPEDANCE

|IOH|=IOL=4 mA(MIN.)

.BALANCEDPROPAGATION DELAYS

t

PLH=tPHL

.WIDE OPERATINGVOLTAGE RANGE

VCC(OPR)= 2V TO 6 V

.PIN ANDFUNCTION COMPATIBLE

WITH 4028B

M54HC4028
M74HC4028

BCD TO DECIMAL DECODER

B1R

(PlasticPackage)

M1R

(MicroPackage)

ORDER CODES :

M54HC 4028F1R M74H C4028M1R
M74HC 4028B1R M74HC4 028C1R

F1R

(CeramicPackage)

C1R

(Chip Carrier)

DESCRIPTION

The M54/74HC4028 is a high speed CMOS BCD­TO-DECIMALDECODER fabricated in silicon gate
C2MOStechnology. Ithasthesamehighspeedper­formance of LSTTL combined with true CMOS low
powerconsumption. ABCD codeapplied tothe four
inputs (Ato D) provides a highlevel at the selected
one ofthe decimal decoded outputs. An illegal BCD
code such as eleven to fifteen gives a low level at
all outputs. The device also can be used as 3-TO­8-LINE DECODER,when D input is assigned as a
disable input. The device is useful for code conver­sion,addressdecoding, memoryselection, demulti­plexing, or read out decoding.

All inputs are equipped with protection circuits
against static discharge and transient excess volt­age.

PIN CONNECTIONS(top view)

NC =
No Internal
Connection

October 1992

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M54/M74HC4028

TRUTH TABLE

INPUTS OUTPUTS SELECTED

DCBAY0Y1Y2Y3Y4Y5Y6Y7Y8Y9

LLLLHLLLLLLLLL Y0
LLLHLHLLLLLLLL Y1
LLHLLLHLLLLLLL Y2
LLHHLLLHLLLLLL Y3
LHLLLLLLHLLLLL Y4
LHLHLLLLLHLLLL Y5
LHHLLLLLLLHLLL Y6
LHHHLLLLLLLHLL Y7
HLLLLLLLLLLLHL Y8
HLLHLLLLLLLLLH Y9
HXHXLLLLLLLLLL NOTE
HHXXLLLLLLLLLL NOTE

X:DON’TCARE

LOGIC DIAGRAM

OUTPUTT

2/10

INPUT AND OUTPUT EQUIVALENT CIRCUIT

M54/M74HC4028

PIN DESCRIPTION

IEC LOGIC SYMBOL

PIN No SYMBOL NAME AND FUNCTION

1, 2, 3, 4, 5,

Y0 to Y9 Decoder Outputs

6, 7, 9, 14,

15

10, 11, 13,

A to D Data Inputs

12

8 GND Ground (0V)

16 V

CC

Positive Supply Voltage

ABSOLU TE MAXIMU M RAT INGS

Symbol Parameter Value Unit

V

CC

V

V

O

I

IK

I

OK

I

O

I

or I

CC

P

D

T

stg

T

AbsoluteMaximumRatingsarethose values beyond whichdamage tothedevicemayoccur. Functional operation under these conditionisnotimplied.
(*)500 mW: ≅ 65oC derateto300mWby 10mW/oC: 65oCto85oC

Supply Voltage -0.5 to +7 V
DC Input Voltage -0.5 to VCC+ 0.5 V

I

DC Output Voltage -0.5 to VCC+ 0.5 V
DC Input Diode Current ± 20 mA
DC Output Diode Current ± 20 mA
DC Output Source Sink Current Per Output Pin ± 25 mA
DC VCCor Ground Current ± 50 mA

GND

Power Dissipation 500 (*) mW
Storage Temperature -65 to +150
Lead Temperature (10 sec) 300

L

o

C

o

C

3/10

M54/M74HC4028

RECO MM ENDED OPERATI N G CONDI TIONS

Symbol Parameter Value Unit

V

V

V

T

t

r,tf

DC SPECIFICATIO NS

Symbol Parameter

V

IH

V

V

OH

V

OL

I

I

CC

Supply Voltage 2 to 6 V

CC

Input Voltage 0 to V

I

Output Voltage 0 to V

O

Operating Temperature: M54HC Series

op

M74HC Series

CC
CC

-55 to +125

-40 to +85

Input Rise and Fall Time VCC= 2 V 0 to 1000 ns

V

= 4.5 V 0 to 500

CC

V

= 6 V 0 to 400

CC

Test Conditions Value

V

(V)

CC

=25oC

T

A

54HC and 74HC

-40 to 85oC
74HC

-55 to 125oC

Min. Typ. Max. Min. Max. Min. Max.

High Level Input
Voltage

2.0 1.5 1.5 1.5

4.5 3.15 3.15 3.15

6.0 4.2 4.2 4.2

Low Level Input

IL

Voltage

2.0 0.5 0.5 0.5

4.5 1.35 1.35 1.35

6.0 1.8 1.8 1.8

High Level
Output Voltage

Low Level Output
Voltage

Input Leakage

I

Current
Quiescent Supply

2.0
V

=

I

4.5 4.4 4.5 4.4 4.4

6.0 5.9 6.0 5.9 5.9

4.5 I

6.0 I

2.0

4.5 0.0 0.1 0.1 0.1

6.0 0.0 0.1 0.1 0.1

4.5 I

6.0 I

6.0

IO=-20 µA

V

IH

or

V

IL

=-4.0 mA 4.18 4.31 4.13 4.10

O

=-5.2 mA 5.68 5.8 5.63 5.60

O

V

=

I

IO=20µA

V

IH

or

V

IL

= 4.0 mA 0.17 0.26 0.33 0.40

O

= 5.2 mA 0.18 0.26 0.33 0.40

O

VI=VCCor GND ±0.1 ±1 ±1 µA

1.9 2.0 1.9 1.9

0.0 0.1 0.1 0.1

6.0 VI=VCCor GND 4 40 80 µA

Current

54HC

V
V

o

C

o

C

Unit

V

V

V

V

4/10

M54/M74HC4028

AC ELECTRICAL CHARACTERISTICS (CL=50pF,Inputtr=tf=6ns)

Test Conditions Value

T

=25oC

Symbol Parameter

t
t

TLH
THL

Output Transition
Time

V

CC

(V)

2.0 30 75 95 110

4.5 8151922

A

54HC and 74HC

Min. Typ. Max. Min. Max. Min. Max.

6.0 7131619

t

PLH

t

PHL

Propagation
Delay Time

2.0 96 185 230 280

4.5 24 37 46 56

6.0 20 31 39 48

C

C

PD

Input Capacitance 5 10 10 10 pF

IN

(*) Power Dissipation

39

Capacitance

(*) CPDisdefined as the value ofthe IC’sinternal equivalent capacitance whichis calculated fromthe operatingcurrentconsumption without load.
(Referto Test Circuit). Average operting current canbe obtained by the followingequation. ICC(opr) = CPD•VCC•fIN+I

-40 to 85oC
74HC

-55 to 125oC
54HC

CC

Unit

ns

ns

pF

SWITCHING CHARACTERISTICS TEST
WAVEFORM

TEST CIRCUIT ICC(Opr.)

INPUTTRANSITIONTIME ISTHE SAME ASTHATIN CASE OF
SWITCHINGCHARACTERISTICSTEST.

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M54/M74HC4028

Plastic DIP16 (0.25) MECHANICAL DATA

DIM.

MIN. TYP. MAX. MIN. TYP. MAX.

a1 0.51 0.020

B 0.77 1.65 0.030 0.065

b 0.5 0.020

b1 0.25 0.010

D 20 0.787
E 8.5 0.335

e 2.54 0.100

e3 17.78 0.700

F 7.1 0.280

I 5.1 0.201

L 3.3 0.130

Z 1.27 0.050

mm inch

6/10

P001C

Ceramic DIP16/1 MECHANICAL DATA

M54/M74HC4028

DIM.

MIN. TYP. MAX. MIN. TYP. MAX.

A 20 0.787
B 7 0.276
D 3.3 0.130
E 0.38 0.015

e3 17.78 0.700

F 2.29 2.79 0.090 0.110
G 0.4 0.55 0.016 0.022
H 1.17 1.52 0.046 0.060

L 0.22 0.31 0.009 0.012
M 0.51 1.27 0.020 0.050
N 10.3 0.406

P 7.8 8.05 0.307 0.317

Q 5.08 0.200

mm inch

P053D

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M54/M74HC4028

SO16 (Narrow) MECHANICAL DATA

DIM.

MIN. TYP. MAX. MIN. TYP. MAX.

A 1.75 0.068
a1 0.1 0.2 0.004 0.007
a2 1.65 0.064

b 0.35 0.46 0.013 0.018

b1 0.19 0.25 0.007 0.010

C 0.5 0.019

c1 45° (typ.)

D 9.8 10 0.385 0.393

E 5.8 6.2 0.228 0.244

e 1.27 0.050

e3 8.89 0.350

F 3.8 4.0 0.149 0.157

G 4.6 5.3 0.181 0.208

L 0.5 1.27 0.019 0.050

M 0.62 0.024

S8°(max.)

mm inch

8/10

P013H

PLCC20 MECHANICAL DATA

M54/M74HC4028

DIM.

MIN. TYP. MAX. MIN. TYP. MAX.

A 9.78 10.03 0.385 0.395

B 8.89 9.04 0.350 0.356

D 4.2 4.57 0.165 0.180
d1 2.54 0.100
d2 0.56 0.022

E 7.37 8.38 0.290 0.330

e 1.27 0.050

e3 5.08 0.200

F 0.38 0.015
G 0.101 0.004
M 1.27 0.050

M1 1.14 0.045

mm inch

P027A

9/10

M54/M74HC4028

Information furnishedis believed to be accurate and reliable. However, SGS-THOMSON Microelectronicsassumes no responsability for the
consequences of useof suchinformation nor forany infringement ofpatents or other rights of third parties which may results from its use. No
license is granted byimplication or otherwiseunder any patentor patent rights ofSGS-THOMSON Microelectronics. Specificationsmentioned
in this publication are subjectto changewithout notice. This publication supersedes andreplaces all information previously supplied.
SGS-THOMSON Microelectronicsproducts are not authorized foruse ascritical componentsinlife supportdevices or systemswithout express
written approval of SGS-THOMSON Microelectonics.

 1994SGS-THOMSON Microelectronics- All Rights Reserved

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