Datasheet M74HC21 Datasheet (SGS Thomson Microelectronics)

.HIGH SPEED

tPD= 10 ns (TYP.) AT VCC=5V

.LOWPOWER DISSIPATION

ICC=1µA(MAX.) AT TA=25°C

.HIGH NOISEIMMUNITY

V

NIH=VNIL

= 28% VCC(MIN.)

.OUTPUT DRIVE CAPABILITY

10 LSTTL LOADS

.SYMMETRICAL OUTPUT IMPEDANCE

IOH =IOL= 4 mA (MIN.)

.BALANCEDPROPAGATION DELAYS

t

PLH=tPHL

.WIDE OPERATINGVOLTAGERANGE

VCC(OPR)= 2 V TO 6 V

.PIN AND FUNCTION COMPATIBLE

WITH 54/74LS21

M54HC21
M74HC21

DUAL 4-INPUT AND GATE

B1R

(PlasticPackage)

M1R

(MicroPackage)

ORDER CODES :

M54HC 21F1R M74H C21M1R
M74HC 21B1R M 74HC21C1R

F1R

(CeramicPackage)

C1R

(Chip Carrier)

DESCRIPTION

The M54/74HC21 is a high speed CMOS DUAL 4­INPUTANDGATEfabricated insilicongateC2MOS
technology. It has the same high speed perform­anceofLSTTLcombinedwithtrueCMOSlowpower
consumption.

The internal circuits is composed of3stagesinclud­ingbufferedoutput,whichgiveshighnoiseimmunity
and a stable output.

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

INPUT AND OUTPUT EQUIVALENT CIRCUIT

PIN CONNECTIONS(top view)

NC =
No Internal
Connection

December1992

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M54/M74HC21

TRUTH TABLE

ABCDY

LXXXL
XLXXL
XXLXL
XXXLL
HHHHH

PIN DESCRIPTION

PIN No SYMBOL NAME AND FUNCTION

1, 9 1A to 2A Data Inputs
2, 10 1B to 2B Data Inputs
3, 11 N C Not Connected
4, 12 1C to 2C Data Inputs
5, 13 1D to 2D Data Inputs

6, 8 1Y to 2Y Data Outputs

7 GND Ground (0V)

14 V

CC

Positive Supply Voltage

SCHEM ATIC C I R CUI T (Per Gate)

IEC LOGIC SYMBOL

ABSOLU TE MAXIMU M RAT INGS

Symbol Parameter Value Unit

V

CC

V

V

O

I

IK

I

OK

I

O

or I

I

CC

P

D

T

stg

T

L

AbsoluteMaximumRatingsarethose values beyondwhichdamage tothedevicemayoccur. Functional operationunder theseconditionisnotimplied.
(*)500 mW: ≅ 65oC derate to300 mW by 10mW/oC: 65oCto85oC

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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

o

C

o

C

M54/M74HC21

RECO MM ENDED OPERATIN G C O NDITI ONS

Symbol Parameter Value Unit

V

V

V

T

t

r,tf

DC SPECIFICA TIONS

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 1 10 20 µA

Current

54HC

V
V

o

C

o

C

Unit

V

V

V

V

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M54/M74HC21

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 40 100 125 150

4.5 13 20 25 30

6.0 11 17 21 26

C

C

PD

Input Capacitance 5 10 10 10 pF

IN

(*) Power Dissipation

25

Capacitance

(*) CPDisdefinedas the value ofthe IC’sinternal equivalent capacitance which is calculated fromthe operatingcurrent consumption withoutload.
(RefertoTestCircuit).Average opertingcurrentcanbe obtained bythe followingequation. ICC(opr) = CPD•VCC•fIN+ICC/4(per Gate)

SWITCHING CHARACTERISTICS TEST CIRCUIT

-40 to 85oC
74HC

-55 to 125oC
54HC

Unit

ns

ns

pF

TEST CIRCUIT ICC(Opr.)

INPUTWAVEFORMIS THESAME ASTHAT INCASEOF SWITCHINGCHARACTERISTICSTEST.

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Plastic DIP14 MECHANICAL DATA

M54/M74HC21

DIM.

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

a1 0.51 0.020

B 1.39 1.65 0.055 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 15.24 0.600

F 7.1 0.280

I 5.1 0.201

L 3.3 0.130

Z 1.27 2.54 0.050 0.100

mm inch

P001A

5/9

M54/M74HC21

Ceramic DIP14/1 MECHANICAL DATA

DIM.

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

A 20 0.787
B 7.0 0.276
D 3.3 0.130
E 0.38 0.015

e3 15.24 0.600

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 1.52 2.54 0.060 0.100
N 10.3 0.406

P 7.8 8.05 0.307 0.317

Q 5.08 0.200

mm inch

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P053C

SO14 MECHANICAL DATA

M54/M74HC21

DIM.

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

A 1.75 0.068
a1 0.1 0.2 0.003 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 8.55 8.75 0.336 0.344

E 5.8 6.2 0.228 0.244

e 1.27 0.050

e3 7.62 0.300

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 0.68 0.026

S8°(max.)

mm inch

P013G

7/9

M54/M74HC21

PLCC20 MECHANICAL DATA

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

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P027A

M54/M74HC21

Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsability for the
consequences of use of such information nor for any infringement of patents or other rights of third parties which may results from its use. No
license is grantedbyimplication or otherwise under any patent or patentrights ofSGS-THOMSON Microelectronics. Specificationsmentioned
in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied.
SGS-THOMSON Microelectronicsproductsare notauthorized foruse ascriticalcomponentsinlife support devices orsystems withoutexpress
written approval of SGS-THOMSON Microelectonics.

 1994 SGS-THOMSON Microelectronics - All Rights Reserved

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