SGS Thomson Microelectronics M74HCT174 Datasheet

HEX D-TYPE FLIP FLOPWITH CLEAR

.HIGH SPEED

f

= 56 MHz(TYP.) AT VCC=5V

MAX

.LOWPOWER DISSIPATION

ICC=4µA(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

54/74LS174

DESCRIPTION

TheM54/74HCT174 is a highspeed CMOSHEXD­TYPEFLIP-FLOP WITHCLEARfabricated insilicon
gateC2MOStechnology. Ithasthesamehighspeed
performance of LSTTL combined with true CMOS
low power consumption.
InformationsignalsappliedtoD inputsaretransfered
totheQoutputonthepositivegoingedgeoftheclock
pulse. When the CLEAR inputisheld low,the Qout­putsare held low independently of the otherinputs.
This integrated circuit has input and output charac­teristics that are fully compatible with 54/74 LSTTL
logic families. M54/74HCT devices are designed to
directly interface HSC2MOS systems with TTL and
NMOScomponents. Theyare also plug in replace­ments forLSTTL devicesgivingareductionofpower
consumption. Allinputs are equipped withprotection
circuitsagainst staticdischargeandtransientexcess
voltage.

M54HCT174
M74HCT174

B1R

(PlasticPackage)

M1R

(MicroPackage)

ORDER CODES :

M54HC T174F1R M74H CT174M1R
M74HC T174B1R M74HCT174C1R

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/M74HCT174

TRUTH TABLE

INPUTS OUTPUTS

CLEAR D CK Q

L X X L CLEAR
HL L
HH H
HX Q

X:Don’t Care

PIN DESCRIPTION

PIN No SYMBOL NAME AND FUNCTION

1 CLEAR AsynchronousMaster

Reset (Active LOW)

2, 5, 7, 10,

12, 15

3, 4, 6, 11,

13, 14

9 CLOCK Clock Input (LOW to

8 GND Ground (0V)

16 V

Q0 to Q5 Flip-flop Outputs

D0 to D5 Data Inputs

HIGH, edge triggered)

CC

Positive Supply Voltage

n

IEC LOGIC SYMBOL

FUNCTION

NO CHANGE

LOGI C DIAG RAM

2/11

M54/M74HCT174

ABSOLU TE MAXIMU M R AT I NG S

Symbol Parameter Value Unit

V

CC

V

V

O

I

IK

I

OK

I

O

I

or I

CC

P

D

T

stg

T

AbsoluteMaximumRatingsarethosevaluesbeyondwhichdamagetothedevice mayoccur.Functionaloperationunder theseconditionisnotimplied.
(*)500 mW:≅ 65oC derateto 300 mWby 10mW/oC: 65oCto85oC

RECO MM ENDED O PERAT IN G CONDI TIONS

Symbol Parameter Value Unit

V

CC

V

I

V

O

T

op

t

r,tf

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

Supply Voltage 4.5 to 5.5 V
Input Voltage 0 to V
Output Voltage 0 to V
Operating Temperature: M54HC Series

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

o

C

o

C

V
V

o

C

o

C

3/11

M54/M74HCT174

DC SPECIFICATIO NS

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

=-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 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

V

V

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