Datasheet M74HCT27 Datasheet (SGS Thomson Microelectronics)

.HIGH SPEED

tPD= 9 ns (TYP.)AT VCC=5V

.LOWPOWER DISSIPATION

ICC=1µA(MAX.) AT TA=25°C

.COMPATIBLE WITH TTL OUTPUTS

VIH= 2V(MIN.) VIL= 0.8V (MAX)

.OUTPUT DRIVE CAPABILITY

10 LSTTLLOADS

.SYMMETRICALOUTPUT IMPEDANCE

IOH =IOL= 4 mA (MIN.)

.BALANCEDPROPAGATION DELAYS

t

PLH=tPHL

.PIN AND FUNCTION COMPATIBLE WITH

54/74LS27

DESCRIPTION

The M54/74HCT27 is ahigh speed CMOS TRIPLE
3-INPUT NOR GATE fabricated in silicon gate
C2MOS technology.
It has the same high speed performance of LSTTL
combined with true CMOSlow power consumption.
The internal circuitis composedof 3stages includ­ingbufferedoutput,whichgiveshighnoiseimmunity
anda stableoutput.Allinputsareequippedwith pro­tectioncircuitsagainststaticdischarge andtransient
excessvoltage.Thisintegratedcircuit hasinputand
outputcharacteristics that are fully compatible with
54/74 LSTTL logic families. M54/74HCT devices
are designed to directly interface HSC2MOS sys­tems with TTL and NMOS components. They are
also plugin replacements for LSTTL devicesgiving
a reduction of power consumption.

M54HCT27
M74HCT27

TRIPLE3-INPUT NOR GATE

B1R

(PlasticPackage)

M1R

(MicroPackage)

ORDER CODES :

M54HC T27F1R M74H CT27M1R
M74HC T27B1R M74HCT27C1R

PIN CONNECTIONS (top view)

F1R

(CeramicPackage)

C1R

(Chip Carrier)

INPUT AND OUTPUT EQUIVALENT CIRCUIT

February 1993

NC =
No Internal
Connection

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M54/M74HCT27

TRUTH TABLE

ABCY

LLLH
HXXL
XHXL
XXHL

PIN DESCRIPTION

PIN No SYMBOL NAME AND FUNCTION

1, 3, 9 1A to 3A Data Inputs

2, 4, 10 1B to 3B Data Inputs

13, 5, 11 1C to 3C Data Inputs

12, 6, 8 1Y to 3Y Data Outputs

7 GND Ground (0V)

14 V

CC

Positive Supply Voltage

LOGI C DIAG RAM

IEC Logic Symbol

ABSOLU TE MAXIMU M RATING S

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

AbsoluteMaximumRatingsarethosevalues beyond whichdamagetothedevicemayoccur.Functionaloperationunder these conditionisnotimplied.
(*)500 mW:≅ 65oC derateto300mWby 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/M74HCT27

RECO MM ENDED O PERAT IN G C ONDITI ONS

Symbol Parameter Value Unit

V

V

V

T

t

r,tf

DC SPECIFICA TIONS

Symbol Parameter

V

V

V

OH

V

OL

I

I

CC

∆I

Supply Voltage 4.5 to 5.5 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= 4.5 to 5.5V) 0 to 500 ns

Test Conditions Value

T

High Level Input

IH

Voltage

V

(V)

4.5

=25oC

CC

A

54HC and 74HC

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

2.0 2.0 2.0 V

to

-40 to 85oC
74HC

-55 to 125oC

5.5

Low Level Input

IL

Voltage

4.5
to

0.8 0.8 0.8 V

5.5

High Level
Output Voltage

Low Level Output
Voltage

Input Leakage

I

Current
Quiescent Supply

VI=

IO=-20 µA 4.4 4.5 4.4 4.4

V

IH

4.5

or

I

=-4.0 mA 4.18 4.31 4.13 4.10

O

V

IL

VI=

IO=20µA 0.0 0.1 0.1 0.1

V

IH

4.5

or

I

= 4.0 mA 0.17 0.26 0.33 0.4

O

V

IL

VI=VCCor GND ±0.1 ±1 ±1 µA

5.5

5.5 VI=VCCor GND 1 10 20 µA

Current
Additional worst

CC

case supply
current

5.5 Per Input pin

V

= 0.5V or

I

VI= 2.4V

2.0 2.9 3.0 mA

Other Inputs at

VCCor GND

IO=0

54HC

V
V

o

C

o

C

Unit

V

V

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M54/M74HCT27

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

Test Conditions Value

T

=25oC

Symbol Parameter

t

TLH

t

THL

t

PLH

t

PHL

C

C

PD

Output Transition
Time

Propagation
Delay Time

Input Capacitance 5 10 10 10 pF

IN

(*) Power Dissipation

V

CC

(V)

4.5 8151922

4.5 12 19 24 29

A

54HC and 74HC

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

48

Capacitance

(*) CPDisdefined as the valueofthe IC’s internal equivalent capacitance whichis calculated fromthe operating current consumption withoutload.
(RefertoTest Circuit).Average operting current can be obtained bythefollowingequation. ICC(opr) = CPD•VCC•fIN+ICC/3(per Gate)

SWITCHING CHARACTERISTICS TEST CIRCUIT

-40 to 85oC
74HC

-55 to 125oC
54HC

Unit

ns

ns

pF

TEST CIRCUIT ICC(Opr.)

INPUTWAVEFORMISTHESAVE ASTHATIN CASEOFSWITCHINGCHARACTERISTICSTEST.

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Plastic DIP14 MECHANICAL DATA

M54/M74HCT27

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/M74HCT27

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/M74HCT27

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/M74HCT27

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/M74HCT27

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 granted byimplication or otherwise under any patent or patentrights of SGS-THOMSON Microelectronics. Specificationsmentioned
in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied.
SGS-THOMSON Microelectronicsproductsarenotauthorizedforuse ascriticalcomponentsinlifesupportdevicesorsystemswithoutexpress
written approval of SGS-THOMSON Microelectonics.

 1994 SGS-THOMSON Microelectronics - All Rights Reserved

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