SGS Thomson Microelectronics 74ACT574 Datasheet



WITH 3 STATE OUTPUT NON INVERTING

■ HIGHSPEED:

=250MHz(TYP.)atVCC=3.3V

f

MAX

■ LOW POWER DISSIPATION:

I

=8µA (MAX.)at TA=25oC

CC

■ COMPATIBLEWITHTTLOUTPUTS

V

=2V(MIN),VIL=0.8V(MAX)

IH

■

50ΩTRANSMISSIONLINEDRIVING
CAPABILITY

■ SYMMETRICALOUTPUTIMPEDANCE:

|I

|=IOL=24mA (MIN)

OH

■ BALANCEDPROPAGATIONDELAYS:

≅

t

t

PLH

PHL

■ OPERATINGVOLTAGERANGE:

V

(OPR)= 4.5Vto 5.5V

CC

■ PINANDFUNCTION COMPATIBLEWITH

74SERIES 574

■

IMPROVEDLATCH-UPIMMUNITY

DESCRIPTION

The ACT574 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 an output enable input (OE).

On the positive transition of the clock, the Q
outputs will be set to logic state that were setup
at the D inputs.

2

MOStechnology.

74ACT574

OCTAL D-TYPE FLIP FLOP

DIP

ORDER CODES

PACKAGE TUBE T & R

DIP M74ACT574B

SOP M74ACT574M M74ACT574MTR

TSSOP M74ACT574TTR

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.

The device is designed to interface directly High
Speed CMOS system with TTL and NMOS
components.

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

1/11

74ACT574

INPUT AND OUTPUT EQUIVALENTCIRCUIT PIN DESCRIPTION

PI N No SYMB OL NAME AND FUNCTIO N

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 C K D Q

HXXZ

L X NO CHANGE
LLL
LHH

X:DON’TCARE
Z:HIGHIMPEDANCE

D0 to D7 Data Inputs

Q0 to Q7 3 State Outputs

CC

Input (Active LOW)

HIGH, edge triggered)

Positive Supply Voltage

LOGICDIAGRAMS

2/11

74ACT574

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

AbsoluteMaximumRatingsarethosevalues beyond whichdamagetothedevicemayoccur. Functionaloperationunderthesecondition isnotimplied.

RECOMMENDEDOPERATINGCONDITIONS

Symb o l Parameter Val u e Uni t

V

V

V

T

dt/dv Input Rise and Fall Time V

1)VINfrom0.8Vto2.0V

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 4.5 to 5.5 V

CC

Input Voltage 0 to V

I

Output Voltage 0 to V

O

Operating Temperature: -40 to +85

op

= 4.5 to 5.5V (note 1) 8 ns/V

CC

50 mA

±

400 mA

±

CC
CC

o

C

o

C

V
V

o

C

3/11

74ACT574

DC SPECIFICATIONS

Symbol Parameter Test Conditions Value Unit

T

V

CC

(V)

High Level Input Voltage 4.5 VO= 0.1 V or

V

IH

5.5 2.0 1.5 2.0

Low Level Input Voltage 4.5 VO= 0.1 V or

V

IL

5.5 1.5 0.8 0.8

High Level Output

V

OH

Voltage

4.5

5.5 I

V
V

4.5 I

5.5 I

Low Level Output

V

OL

Voltage

4.5

5.5 I

V
V

4.5 I

5.5 I

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

I

I

3 State Output Leakage

I

OZ

5.5 VI=VIHor V

Current
Max ICC/Input 5.5 VI=VCC-2.1V 0.6 1.5 mA

I

CCT

Quiescent Supply

I

CC

5.5 VI=VCCor GND 8 80 µA

-0.1 V

V

CC

V

-0.1 V

CC

IO=-50µA 4.4 4.49 4.4

(*)

=

I
IH

V

IL

(*)

I
IH

V

IL

=-50 µA 5.4 5.49 5.4

O

or

=-24 mA 3.86 3.76

O

=-24 mA 4.86 4.76

O

IO=50 µA 0.001 0.1 0.1

=

=50 mA 0.001 0.1 0.1

O

or

=24 mA 0.36 0.44

O

=24 mA 0.36 0.44

O

IL

VO=VCCor GND

Current
Dynamic Output Current

I

OLD

OHD

(note 1, 2)

I

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

2)Incidentwave switchingis guaranteedontransmissionlineswithimpedances 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.

2.0 1.5 2.0

1.5 0.8 0.8

±0.5 ±5 µA

V

V

V

V

4/11