Datasheet M74HCT368, M74HCT367 Datasheet (SGS Thomson Microelectronics)

HCT367 NONINV ERTING, HCT368INVERTING

.HIGH SPEED

tPD= 11 ns(TYP.) AT VCC=5V

.LOWPOWER DISSIPATION

ICC=4µA(MAX.) AT TA=25°C

.COMPATIBLE WITH TTL OUTPUTS

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

.OUTPUTDRIVECAPABILITY

15 LSTTLLOADS

.SYMMETRICALOUTPUT IMPEDANCE

|IOH|=IOL=6 mA(MIN.)

.BALANCEDPROPAGATIONDELAYS

t

PLH=tPHL

.PIN AND FUNCTION COMPATIBLE WITH

54/74LS367/368

DESCRIPTION

The M54/74HCT367 and the M54/74HCT368 are
high speed CMOS HEX BUSBUFFER (3-STATE)
fabricated in silicon gate C2MOStechnology. They
have the same high speed performance of LSTTL
combined with trueCMOSlow power consumption.
These devices contain six buffers, four buffers are
controlledbyan enable input(G1)andtheothertwo
buffers are controlled by the other enable input
(G2); theoutputs of each buffer group are enabled
when G1 and/or G2 inputs are held low, and
when held high these outputs are disabled to be
high-impedance.

Theseoutputsarecapableofdrivingupto15LSTTL
loads. The designer has a choice of non-inverting
outputs (HCT367)andinverting outputs (HCT368).

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

This integrated circuit has inputand output charac­teristicsthat are fully compatible with 54/74 LSTTL
logic families. M54/74HCT devices are designed to
directly interface HSC2MOSsystems with TTLand
NMOS components. They are also plug in replace­ments for LSTTL devices giving a reduction of
powerconsumption.

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

M54/M74HCT367
M54/M74HCT368

HEX BUS BUFFER(3-STATE)

B1R

(PlasticPackage)

M1R

(MicroPackage)

ORDER CODES :

M54HC TXXX F 1R M74H CTXXXM1R
M74HC TXXX B1R M74HCT XXX C1R

PIN CONNECTIONS(topview)

HCT368

HCT367

F1R

(CeramicPackage)

C1R

(Chip Carrier)

February 1993

1/11

M54/M74HCT367/368

INPUT AND OUTPUT EQUIVALENT CIRCUIT

CHIP CARRIER

HCT367 HCT368

TRUTH TABLE

INPUTS OUTPUTS

G An Y n (367) Yn (368)

LLLH
LHHL

HXZZ

X =DON’TCARE Z= HIGHIMPEDANCE

PIN DESCRIPTION (HC T367)

PIN No SYMBOL NAME AND FUNCTION

1, 15 G1, G2 Output Enable Inputs

2, 4, 6, 10,

12, 14

3, 5, 7, 9,

11, 13

8 GND Ground (0V)

16 V

1A to 6A Data Inputs

1Y to 6Y Data Outputs

CC

Positive Supply Voltage

NC = No Internal Connection

PIN DESCRIPTION (HC T368)

PIN No SYMBOL NAME AND FUNCTION

1, 15 G1, G2 Output Enable Inputs

2, 4, 6, 10,

12, 14

3, 5, 7, 9,

11, 13

8 GND Ground (0V)

16 V

1A to 6A Data Inputs

1Y to 6Y Data Outputs

CC

Positive Supply Voltage

2/11

M54/M74HCT367/368

IEC LOGIC SYMBOL

HCT367 HCT368

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

AbsoluteMaximumRatingsarethosevalues beyondwhichdamagetothedevicemayoccur.Functionaloperationunder theseconditionisnotimplied.
(*)500 mW:≅ 65oC derateto 300mW by 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 ± 35 mA
DC VCCor Ground Current ± 70 mA

GND

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

L

o

C

o

C

RECO MM ENDED OPERATI N G C O NDI TIONS

Symbol Parameter Value Unit

V

T

t

V

V

r,tf

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

RECO MM ENDED OPERATI N G C O NDI TIONS

V
V

o

C

o

C

3/11

M54/M74HCT367/368

DC SPECIFICA TIONS

Symbol Parameter

V

V

V

V

I

∆I

High Level Input

IH

Voltage

Low Level Input

IL

Voltage

High Level

OH

Output Voltage

Low Level Output

OL

Voltage

Input Leakage

I

I

Current
Quiescent Supply

CC

Current
Additional worst

CC

case supply
current

Test Conditions Value

V

(V)

4.5

CC

=25oC

A

54HC and 74HC

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

2.0 2.0 2.0 V

-40 to 85oC
74HC

-55 to 125oC
54HC

Unit

T

to

5.5

4.5

0.8 0.8 0.8 V

to

5.5
VI=

IO=-20 µA 4.4 4.5 4.4 4.4

V

IH

4.5

or

I

=-6.0 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

= 6.0 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 4 40 80 µA

5.5 Per Input pin

2.0 2.9 3.0 mA

VI= 0.5V or

V

= 2.4V

I

Other Inputs at

VCCor GND

IO=0

V

V

4/11

M54/M74HCT367/368

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

Test Conditions Value

T

=25oC

Symbol Parameter

t
t

t
t

TLH
THL

PLH
PHL

Output Transition
Time

Propagation
Delay Time
(for HCT367 only)

t
t

PLH
PHL

Propagation
Delay Time
(for HCT368 only)

t

PZL

t

PZH

t

PLZ

t

PHZ

C

C

PD

Output Enable
Time

Output Disable
Time

Input Capacitance 5 10 10 10 pF

IN

(*) Power Dissipation

Capacitance

(*) CPDisdefinedas the valueofthe IC’s internal equivalent capacitance whichiscalculated from theoperatingcurrent consumption withoutload.
(RefertoTest Circuit).Average operting current canbe obtained bythe followingequation. ICC(opr) = CPD•VCC•fIN+ICC/6(per Channel)

V

C

CC

(V)

L

(pF)

2.0 50 7 12 15 18 ns

2.0 50 14 22 28 33

2.0 150 18 28 35 42

2.0 50 15 24 30 36

2.0 150 19 30 38 45

2.0 50 16 25 31 38

2.0 150 20 31 39 47

2.0 50 18 25 31 38 ns

fot HCT367
for HCT368

A

54HC and 74HC

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

47
55

-40 to 85oC
74HC

-55 to 125oC
54HC

Unit

ns

ns

ns

pF

TEST CIRCUIT ICC(Opr.)

* INPUT WAVEFORM IS THE SAME AS THAT IN CASE OF
SWITCHINGCHARACTERISTICSTEST.

CPDCALCULATION

CPDis to be calculated with the following
formula by using the measured value of
ICC(opr.) in the test circuit opposite.

I

(

opr

CPD=

f

CC
IN

)

×

V

CC

In determining the typicalvalue of CPD,a
relatively highfrequency of 1 MHzwasap­pliedto fIN, in order to eliminate any error
causedby the quiescent supplycurrent.

5/11

M54/M74HCT367/368

SWITCHING CHARACTERISTICS TEST WAVEFORM

GND

V

CC

Note: Such a logiclevel shall be appliedto each input thatthe outputvoltagestays in the apposite side to theswitch connection level,when
the output is enabled.

6/11

M54/M74HCT367/368

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

P001C

7/11

M54/M74HCT367/368

Ceramic DIP16/1 MECHANICAL DATA

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

8/11

P053D

SO16 (Narrow) MECHANICAL DATA

M54/M74HCT367/368

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

P013H

9/11

M54/M74HCT367/368

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

10/11

P027A

M54/M74HCT367/368

Information furnished is believed to be accurate and reliable.However, SGS-THOMSON Microelectronicsassumes no responsability for the
consequences of useof such information nor forany infringement of patents orother rights of third parties which may results from itsuse.No
license isgranted byimplication or otherwiseunder any patentor patentrights ofSGS-THOMSONMicroelectronics. Specificationsmentioned
in this publication aresubject to changewithout notice. This publicationsupersedesand replaces all information previouslysupplied.
SGS-THOMSON Microelectronicsproducts arenot authorizedforuse ascritical componentsinlife supportdevices orsystemswithoutexpress
written approvalof SGS-THOMSON Microelectonics.

 1994 SGS-THOMSON Microelectronics- All RightsReserved

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11/11