Datasheet M74HCT374, M74HCT534 Datasheet (SGS Thomson Microelectronics)

M54/74HCT374

M54/74HCT534

April1993

HCT374 NON INVERTING - HCT534INVERTING

OCTAL D-TYPE FLIP FLOP WITH 3 STATE OUTPUT

B1R

(PlasticPackage)

ORDER CODES :

M54HC T XXXF1R M74HC T XXXM1R
M74HC T XXXB1R M74HCTXXXC1R

F1R

(CeramicPackage)

M1R

(MicroPackage)

C1R

(Chip Carrier)

PIN CONNECTION (top view)

.HIGH SPEED

f

MAX

= 62 MHz(TYP.) AT VCC=5V

.LOWPOWER DISSIPATION

ICC=4µA(MAX.) AT TA=25°C

.COMPATIBLE WITHTTL OUTPUTS

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

.OUTPUT DRIVE CAPABILITY

15 LSTTL LOADS

.SYMMETRICAL OUTPUT IMPEDANCE

IOL=IOH= 6 mA (MIN.)

.BALANCEDPROPAGATION DELAYS

t

PLH=tPHL

.PIN AND FUNCTION COMPATIBLE

WITH 54/74LS374/534

DESCRIPTION

The M54/74HCT374, M54/74HCT534, are high
speed CMOSOCTALD-TYPEFLIPFLOP WITH 3­STATE OUTPUTS fabricated with in silicon gate
C2MOS technology. They have the same high
speed performance of LSTTL combined with true
CMOS low power comsuption. These8-bit D-type
flip-flopsarecontrolled by a clockinput (CK)and an
ouput enable input (OE). On the positive transition
of the clock, the Q outputs will be set to the logic
state that were setup at the D inputs (HCT374) or
their complements (HCT534).
While the OEinput is low, the eight outputs will be
in a normal logic state (high or low logic level), and
while high level, the outputs willbe in a high imped­ancestate.Theoutputcontroldoesnotaffectthein­ternaloperationofflip-flops.Thatis,theolddata can

be retained or the new data can be entered even
while the outputs are off. The application engineer
has a choice ofcombinationof inverting andnon-in­verting outputs. The 3-state output configuration
and thewide choiceof outline make bus-organized
systemssimple.Allinputs areequipped withprotec­tion circuits against static discharge and transient
excessvoltage. This integrated circuithas inputand
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 NMOS components. They are
also plugin replacements for LSTTL devices giving
a reduction of power consumption.

1/13

INPUT AND OUTPUT EQUIVALENT CIRCUIT

PIN DESCRIPTION ( HCT374)

PIN No SYMBOL NAME AND FUNCTION

1 OE 3 State output Enable

Input (Active LOW)

2, 5, 6, 9,

12, 15, 16,

19

Q0 to Q7 3 State outputs

3, 4, 7, 8,

13, 14, 17,

18

D0 to D7 Data Inputs

11 CLOCK Clock Input (LOW to

HIGH, edge triggered)
10 GND Ground (0V)
20 V

CC

Positive Supply Voltage

PIN DESCRIPTIO N (HC T534 )

PIN No SYMBOL NAME AND FUNCTION

1 OE 3 State output Enable

Input (Active LOW)

2, 5, 6, 9,

12, 15, 16,

19

Q0 to Q7 3 State outputs

3, 4, 7, 8,

13, 14, 17,

18

D0 to D7 Data Inputs

11 CLOCK Clock Input (LOW to

HIGH, edge triggered)
10 GND Ground (0V)
20 V

CC

Positive Supply Voltage

IEC LOGIC SYMBOLS

HCT374 HCT534

M54/M74HCT374/534

2/13

TRUTH TABLE

INPUTS OUTPUTS

OE CK D Q (HC374) Q (HC534)

HXXZZ

L X NO CHANGE NO CHANGE
LLLH
LHHL

LOGIC DIAGRAMS

HCT534

HCT374

M54/M74HCT374/534

3/13

ABSOLU TE MAXIMU M R AT I NG S

Symbol Parameter Value Unit

V

CC

Supply Voltage -0.5 to +7 V

V

I

DC Input Voltage -0.5 to VCC+ 0.5 V

V

O

DC Output Voltage -0.5 to VCC+ 0.5 V

I

IK

DC Input Diode Current ± 20 mA

I

OK

DC Output Diode Current ± 20 mA

I

O

DC Output Source Sink Current Per Output Pin ± 35 mA

I

CC

or I

GND

DC VCCor Ground Current ± 70 mA

P

D

Power Dissipation 500 (*) mW

T

stg

Storage Temperature -65 to +150

o

C

T

L

Lead Temperature (10 sec) 300

o

C

AbsoluteMaximumRatingsarethosevalues beyond whichdamage tothedevice mayoccur.Functionaloperationundertheseconditionisnotimplied.
(*)500 mW: ≅ 65oC derate to300mW by 10mW/oC: 65oCto85oC

RECO MM ENDED O PERAT IN G C O NDI TIONS

Symbol Parameter Value Unit

V

CC

Supply Voltage 4.5 to 5.5 V

V

I

Input Voltage 0 to V

CC

V

V

O

Output Voltage 0 to V

CC

V

T

op

Operating Temperature: M54HC Series

M74HC Series

-55 to +125

-40 to +85

o

C

o

C

t

r,tf

Input Rise and Fall Time (VCC= 4.5 to 5.5V) 0 to 500 ns

M54/M74HCT374/534

4/13

DC SPECIFICATIO NS

Symbol Parameter

Test Conditions Value

Unit

V

CC

(V)

T

A

=25oC

54HC and 74HC

-40 to 85oC
74HC

-55 to 125oC
54HC

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

V

IH

High Level Input
Voltage

4.5
to

5.5

2.0 2.0 2.0 V

V

IL

Low Level Input
Voltage

4.5
to

5.5

0.8 0.8 0.8 V

V

OH

High Level
Output Voltage

4.5

VI=

V

IH

or

V

IL

IO=-20 µA 4.4 4.5 4.4 4.4

V

I

O

=-6.0 mA 4.18 4.31 4.13 4.10

V

OL

Low Level Output
Voltage

4.5

VI=

V

IH

or

V

IL

IO=20µA 0.0 0.1 0.1 0.1

V

I

O

= 6.0 mA 0.17 0.26 0.33 0.4

I

I

Input Leakage
Current

5.5

VI=VCCor GND ±0.1 ±1 ±1 µA

I

CC

Quiescent Supply
Current

5.5 VI=VCCor GND 4 40 80 µA

∆I

CC

Additional worst
case supply
current

5.5 Per Input pin

VI= 0.5V or

V

I

= 2.4V

Other Inputs at

VCCor GND

IO=0

2.0 2.9 3.0 mA

M54/M74HCT374/534

5/13

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

Symbol Parameter

Test Conditions Value

Unit

V

CC

(V)

C

L

(pF)

T

A

=25oC

54HC and 74HC

-40 to 85oC
74HC

-55 to 125oC
54HC

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

t

TLH

t

THL

Output Transition
Time

4.5 50 7 12 15 18
ns

t

PLH

t

PHL

Propagation
Delay Time
(CLOCK - Q, Q)

4.5 50 20 30 38 45 ns

4.5 150 25 38 48 57
ns

t

PZL

t

PZH

Output Enable
Time

4.5 50 RL=1KΩ 17 30 38 45 ns

4.5 150 R

L

=1KΩ 25 38 48 57 ns

t

PZL

t

PZH

Output Disable
Time

4.5 50 RL=1KΩ 16 28 35 42
ns

f

MAX

Maximum CLock
Frequency

4.5 50 31 50 25 21
ns

t

W(L)

t

W(H)

Minimum Pulse
Width (CLOCK)

4.5 50 15 19 23
ns

t

s

Minimum Set-up
Time

4.5 50 15 19 23
ns

t

h

Minimum Hold
Time

4.5 50 0 0 0
ns

C

IN

Input Capacitance 5 10 10 10 pF

C

OUT

Out put
Capacitance

10

pF

C

PD

(*) Power Dissipation

Capacitance

48

pF

(*) CPDisdefined as the valueof the IC’s internal equivalent capacitance which is calculatedfromthe operatingcurrent consumption withoutload.
(Refer toTest Circuit).Averageoperting current can be obtainedby the followingequation.ICC(opr) = CPD•VCC•fIN+ICC/8 (per FLIP-FLOP)andC

PD

when N pcs ofFLIP-FLOPoperate, can begainedbyfollowing equation:CPD(TOTAL)=38 + 18 x N (pF)

M54/M74HCT374/534

6/13

SWITCHING CHARACTERISTICS TEST WAVEFORM

t

PLZ,tPZL

The 1KΩ load resistors should be connected between
outputs and VCCline and the 50pF load capacitors
should be connected between outputsand GND line.
All inputs except OE input should be connected to V

CC

line or GND line such that outputs will be in low logic
level while OE input is held low.

t

PHZ,tPZH

The 1KΩ load resistors and the 50pF load capacitors
should be connected between each output and GND
line.
All inputs except OE input should be connected to V

CC

or GND line such that output will be in high logic level
while OE input is held low.

t

PLH,tPHL,ts,th,tw

f

MAX

M54/M74HCT374/534

7/13

TEST CIRCUIT ICC(Opr.)

INPUTWAVEFORM IS THE SAMEAS THATIN CASEOFSWITCHING CHARACTERISTICSTEST.

M54/M74HCT374/534

8/13

Plastic DIP20 (0.25) MECHANICAL DATA

DIM.

mm inch

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

a1 0.254 0.010

B 1.39 1.65 0.055 0.065

b 0.45 0.018

b1 0.25 0.010

D 25.4 1.000
E 8.5 0.335

e 2.54 0.100

e3 22.86 0.900

F 7.1 0.280

I 3.93 0.155

L 3.3 0.130

Z 1.34 0.053

P001J

M54/M74HCT374/534

9/13

Ceramic DIP20 MECHANICAL DATA

DIM.

mm inch

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

A 25 0.984
B 7.8 0.307
D 3.3 0.130
E 0.5 1.78 0.020 0.070

e3 22.86 0.900

F 2.29 2.79 0.090 0.110

G 0.4 0.55 0.016 0.022

I 1.27 1.52 0.050 0.060

L 0.22 0.31 0.009 0.012

M 0.51 1.27 0.020 0.050

N1 4° (min.), 15° (max.)

P 7.9 8.13 0.311 0.320

Q 5.71 0.225

P057H

M54/M74HCT374/534

10/13

SO20 MECHANICAL DATA

DIM.

mm inch

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

A 2.65 0.104
a1 0.10 0.20 0.004 0.007
a2 2.45 0.096

b 0.35 0.49 0.013 0.019

b1 0.23 0.32 0.009 0.012

C 0.50 0.020
c1 45° (typ.)

D 12.60 13.00 0.496 0.512

E 10.00 10.65 0.393 0.419

e 1.27 0.050

e3 11.43 0.450

F 7.40 7.60 0.291 0.299

L 0.50 1.27 0.19 0.050

M 0.75 0.029

S8°(max.)

P013L

M54/M74HCT374/534

11/13

PLCC20 MECHANICAL DATA

DIM.

mm inch

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

P027A

M54/M74HCT374/534

12/13

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 underany patentorpatentrights ofSGS-THOMSON Microelectronics. Specificationsmentioned
in this publicationaresubject to change without notice.Thispublication supersedes and replaces all information previously supplied.
SGS-THOMSON Microelectronicsproductsare notauthorizedforuse ascritical componentsinlife support devicesorsystems withoutexpress
written approval of SGS-THOMSON Microelectonics.

 1994 SGS-THOMSON Microelectronics- All RightsReserved

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M54/M74HCT374/534

13/13