SGS Thomson Microelectronics 74VHC273 Datasheet



OCTAL D-TYPE FLIP FLOP WITH CLEAR

■ HIGHSPEED:

f

=165MHz(TYP.)atVCC=5V

MAX

■ LOWPOWERDISSIPATION:

=4 µA (MAX.)at TA=25oC

I

CC

■ HIGHNOISEIMMUNITY:

V

NIH=VNIL

■ POWERDOWNPROTECTIONON INPUTS

■ SYMMETRICALOUTPUTIMPEDANCE:

|I

|=IOL=8 mA(MIN)

OH

■ BALANCEDPROPAGATIONDELAYS:

t

≅ t

PLH

■ OPERATINGVOLTAGERANGE:

(OPR)= 2Vto 5.5V

V

CC

■ PINANDFUNCTION COMPATIBLEWITH

74SERIES273

■ IMPROVEDLATCH-UPIMMUNITY

■ LOWNOISEV

DESCRIPTION

The 74VHC273 is an advanced high-speed
CMOS OCTAL D-TYPE FLIP FLOP WITH
CLEAR fabricated with sub-micron silicon gate
and double-layer metal wiring C
technology.

=28%VCC(MIN.)

PHL

OLP

=0.9V(Max.)

2

MOS

74VHC273

PRELIMINARY DATA

M

(Micro Package)

(TSSOPPackage)

ORDERCODES :

74VHC273M 74VHC273T

Information signals applied to D inputs are
transfered to the Q outputs on the positive going
edgeof the clock pulse.

Whenthe CLEAR input is held low, the Q outputs
are held low independentlyof the other inputs .

Power down protection is provided on all inputs
and 0 to 7V can be accepted on inputs with no
regard to the supply voltage. This device can be
used to interface 5V to 3V.

All inputs and outputs are equipped with
protection circuits against static discharge, giving
them 2KV ESD immunity and transient excess
voltage.

T

PIN CONNECTION AND IEC LOGIC SYMBOLS

October 1999

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74VHC273

INPUT EQUIVALENTCIRCUIT

TRUTH TABLE

INPUTS OUTPUTS FUNCTION

CLE AR D CLOCK Q

L X X L CLEAR
HL L
HH H
HX Q

X:Don’tCare

PIN DESCRIPTION

PI N No SYM BO L NAM E AND F U NCTI O N

1 CLEAR Asyncronous Master

Reset (Active LOW)

2, 5, 6, 9,

12, 15, 16,

19

3, 4, 7, 8,

13, 14, 17,

18
11 CLOCK Clock Input

10 GND Ground (0V)
20 V

n

Q0 to Q7 Flip-Flop Outputs

D0 to D7 Data Inputs

(LOW-to-HIGH, Edge­Triggered)

CC

Positive Supply Voltage

NO CHANGE

LOGICDIAGRAMS

Thislogic diagram has not be used to esimate propagation delays

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74VHC273

ABSOLUTE MAXIMUM RATINGS

Symb o l Para met er Val u e Uni t

V

V

V

I

I

OK

I

or I

I

CC

T

T

AbsoluteMaximumRatingsarethosevaluesbeyond whichdamage tothedevicemayoccur.Functionaloperation underthese conditionisnotimplied.

RECOMMENDED OPERATINGCONDITIONS

Symb o l Para met er Value Un it

V

V

V

T

dt/dv

1)VINfrom30%to70%ofV

Supply Voltage -0.5 to +7.0 V

CC

DC Input Voltage -0.5 to +7.0 V

I

DC Output Voltage -0.5 to VCC+ 0.5 V

O

DC Input Diode Current - 20 mA

IK

DC Output Diode Current ± 20 mA
DC Output Current

O

DC VCCor Ground Current

GND

Storage Temperature -65 to +150

stg

Lead Temperature (10 sec) 300

L

Supply Voltage 2.0 to 5.5 V

CC

Input Voltage 0 to 5.5 V

I

Output Voltage 0 to V

O

Operating Temperature -40 to +85

op

(V

CC
CC

=3.3±0.3V)
=5.0±0.5V)

Input Rise and Fall Time (see note 1) (V

CC

25 mA

±

75 mA

±

CC

0 to 100

0to20

o

C

o

C

V

o

C

ns/V
ns/V

DC SPECIFICATIONS

Symb o l Para met er Test Con di ti o ns Val u e Uni t

=25oC -40 to 85oC

V

CC

(V)

High Level Input

V

IH

Voltage

V

Low Level Input

IL

Voltage

V

High Level Output

OH

Voltage

Low Level Output

V

OL

Voltage

Input Leakage Current 0 to 5.5 VI= 5.5V or GND ±0.1 ±1.0 µA

I

I

Quiescent Supply

I

CC

2.0 1.5 1.5

3.0 to 5.5 0.7V

2.0 0.5 0.5

3.0 to 5.5 0.3V

2.0 IO=-50 µA 1.9 2.0 1.9

3.0 I

4.5 I

3.0 I

4.5 I

=-50 µA 2.9 3.0 2.9

O

=-50µA 4.4 4.5 4.4

O

=-4 mA 2.58 2.48

O

=-8 mA 3.94 3.8

O

2.0 IO=50 µA 0.0 0.1 0.1

3.0 I

4.5 I

3.0 I

4.5 I

=50 µA 0.0 0.1 0.1

O

=50µA 0.0 0.1 0.1

O

=4 mA 0.36 0.44

O

=8 mA 0.36 0.44

O

5.5 VI=VCCorGND 4 40 µA

Current

T

A

Min. Typ. Max. Min. Max.

CC

0.7V

CC

0.3V

CC

CC

V

V

V

V

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