SGS Thomson Microelectronics 74LVQ273 Datasheet



OCTAL D-TYPE FLIP FLOP WITH CLEAR

■ HIGHSPEED:

=150MHz(TYP.)atVCC=3.3V

f

MAX

■ COMPATIBLEWITHTTLOUTPUT

■

LOW POWERDISSIPATION:
I

=4 µA (MAX.) atTA=25oC

CC

■ LOWNOISE:

=0.4V (TYP.)atVCC=3.3V

V

OLP

■ 75ΩTRANSMISSIONLINEDRIVING

CAPABILITY

■ SYMMETRICALOUTPUTIMPEDANCE:

|I

|=IOL=12 mA (MIN)

OH

■

PCIBUSLEVELSGUARANTEEDAT24mA

■ BALANCEDPROPAGATIONDELAYS:

t

≅ t

PLH

PHL

■ OPERATINGVOLTAGERANGE:

V

(OPR)= 2V to3.6V(1.2VDataRetention)

CC

■

PINANDFUNCTION COMPATIBLEWITH
74SERIES273

■ IMPROVEDLATCH-UPIMMUNITY

DESCRIPTION

The LVQ273 is a low voltage CMOS OCTAL
D-TYPE FLIP FLOP WITH CLEAR fabricated
with sub-micron silicon gate and double-layer
metal wiring C
powerand low noise 3.3V applications.

2

MOS technology. It is ideal for low

74LVQ273

M

(Micro Package)

(TSSOPPackage)

ORDERCODES :

74LVQ273M 74LVQ273T

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

When the CLEAR inputs is held low, the Q
outputs are held low independentelyof the other
inputs.

It has better speed performanceat 3.3V than 5V
LS-TTL family combined with the true CMOS low
powerconsumption.

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

February 1999

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74LVQ273

INPUT AND OUTPUT 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 ON

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

LOGICDIAGRAM

Thislogic diagram has not be used to esimate propagation delays

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74LVQ273

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

AbsoluteMaximumRatingsarethose values beyond whichdamagetothedevicemayoccur.Functionaloperationunderthese conditionisnotimplied.

RECOMMENDED OPERATINGCONDITIONS

Symb o l Para met er Value Un it

V

V

V

T

dt/dv Input Rise and Fall Time (V

1) Truth Table guaranteed: 1.2V to 3.6V

2)V

from0.8Vto 2V

IN

Supply Voltage -0.5 to +7 V

CC

DC Input Voltage -0.5 to VCC+ 0.5 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 (note 1) 2 to 3.6 V

CC

Input Voltage 0 to V

I

Output Voltage 0 to V

O

Operating Temperature: -40 to +85

op

= 3V) (note 2) 0 to 10 ns/V

CC

50 mA

±

400 mA

±

CC
CC

o

C

o

C

V
V

o

C

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