SGS Thomson Microelectronics 74AC574 Datasheet



WITH 3 STATE OUTPUT NON INVERTING

■ HIGHSPEED:

=220MHz(TYP.)atVCC=5V

f

MAX

■ LOWPOWERDISSIPATION:

=8 µA (MAX.)at TA=25oC

I

CC

■

HIGHNOISEIMMUNITY: V

NIH=VNIL

■ 50Ω TRANSMISSIONLINEDRIVING

CAPABILITY

■ SYMMETRICALOUTPUTIMPEDANCE:

|=IOL=24mA (MIN)

|I

OH

■

BALANCEDPROPAGATIONDELAYS:

≅ t

t

PLH

■ OPERATINGVOLTAGERANGE:

V

(OPR)= 2V to 6V

CC

■ PINANDFUNCTION COMPATIBLEWITH

74SERIES 574

■

IMPROVEDLATCH-UPIMMUNITY

DESCRIPTION

The AC574 is an advanced high-speed CMOS OCTAL D-TYPE FLIP FLOP with 3 STATE OUTPUT NON INVERTING fabricated with sub-micron silicon gate and double-layer metal wiringC

These 8 bit D-Type flip-flops are controlled by a clockinput (CK)and anoutput enableinput (OE).

On the positive transition of the clock, the Q

=28%VCC(MIN.)

PHL

2

MOStechnology.

74AC574

OCTAL D-TYPE FLIP FLOP

DIP

ORDER CODES

PACKAGE TUBE T & R

DIP M74AC574B

SOP M74AC574M M74AC574MTR

TSSOP M74AC574TTR

outputs will be set to logic state that were setup at the D inputs.

While the (OE) input is low, the 8 outputs will be in a normal logic state (high or low logic level) and while high level the outputs will be in a high impedancestate.

The output control does not affect the internal operation of flip flop; that is, the old data can be retained or the new data can be entered even whilethe outputsare off.

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

SOP

TSSOP

PIN CONNECTION AND IEC LOGICSYMBOLS

February 2000

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74AC574

INPUT AND OUTPUT EQUIVALENTCIRCUIT PIN DESCRIPTION

PI N No SYMB OL NAME AND F U NCTI ON

1 OE 3 State Output Enable

2, 3, 4, 5, 6, 7,

8, 9

12, 13, 14, 15, 16, 17,

18, 19

11 CLOCK Clock Input (LOW to

10 GND Ground (0V) 20 V

TRUTH TABLE

INPUTS OUTPUTS

OE CK D Q

HXXZ

L X NO CHANGE LLL LHH

D0 to D7 Data Inputs

Q0 to Q7 3 State Outputs

CC

Input (Active LOW)

HIGH, edge triggered)

Positive Supply Voltage

LOGICDIAGRAM

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74AC574

ABSOLUTE MAXIMUM RATINGS

Symb o l Parameter Val u e Uni t

V

I

OK

I

or I

I

CC

T

AbsoluteMaximumRatingsarethosevalues beyond whichdamage tothedevicemayoccur. Functionaloperationunderthesecondition isnotimplied.

RECOMMENDEDOPERATINGCONDITIONS

Symb o l Parameter Value Un it

V

T

dt/dv Input Rise and Fall Time V

1)VINfrom30%to70%ofV

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 2 to 6 V

CC

Input Voltage 0 to V

I

Output Voltage 0 to V

O

Operating Temperature: -40 to +85

op

= 3.0, 4.5 or 5.5 V(note 1) 8 ns/V

CC

50 mA

±

400 mA

±

CC CC

o

C

o

C

V V

o

C

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74AC574

DC SPECIFICATIONS

Symbol Parameter Test Conditions Value Unit

T

V

CC

(V)

High Level Input Voltage 3.0 VO= 0.1 V or

V

IH

4.5 3.15 2.25 3.15

-0.1 V

V

CC

5.5 3.85 2.75 3.85

Low Level Input Voltage 3.0 VO= 0.1 V or

V

IL

4.5 2.25 1.35 1.35

V

-0.1 V

CC

5.5 2.75 1.65 1.65

High Level Output

V

OH

Voltage

Low Level Output

V

OL

Voltage

Input Leakage Current 5.5 VI=VCCor GND ±0.1 ±1 µA

I

3-State Output Off-state

I

OZ

Current

I

Quiescent Supply

CC

3.0

4.5 I

5.5 I

V V

3.0 I

4.5 I

5.5 I

3.0

4.5 I

5.5 I

V V

3.0 I

4.5 I

5.5 I

IO=-50 µA 2.9 2.99 2.9

(*)

I IH

V

IL

=-50 µA 4.4 4.49 4.4

O

=

=-50 µA 5.4 5.49 5.4

or

O

=-12 mA 2.56 2.46

O

=-24 mA 3.86 3.76

O

=-24 mA 4.86 4.76

O

IO=50 µA 0.002 0.1 0.1

(*)

I IH

V

IL

=50 µA 0.001 0.1 0.1

O

=

=50µA 0.001 0.1 0.1

or

O

=12 mA 0.36 0.44

O

=24 mA 0.36 0.44

O

=24 mA 0.36 0.44

O

5.5 VI=VCCor GND V

O=VCC

V

I(OE)=VIH

or GND

5.5 VI=VCCor GND 8 80 µA

Current Dynamic Output Current

I

OLD

OHD

(note 1, 2)

I

1) Maximum test duration 2ms,one output loaded at time

2)Incidentwave switchingis guaranteedon transmission lines withimpedances aslowas50 Ω. (*)All outputs loaded.

5.5 V

= 1.65 V max 75 mA

OLD

V

= 3.85 V min -75 mA

OHD

=25oC -40 to 85oC

A

Min. Typ. Max. Min. Max.

2.1 1.5 2.1

1.5 0.9 0.9

0.5

±

5

±

µ

V

A

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