SGS Thomson Microelectronics 74AC174 Datasheet

HEX D-TYPE FLIP FLOP WITH CLEAR

■ HIGH SPEED:

=125MHz (TYP.)at VCC=5V

f

MAX

■ LOWPOWER DISSIPATION:

=8µA (MAX.) at TA=25oC

I

CC

■ HIGH NOISE IMMUNITY:

V

NIH=VNIL

■ 50Ω TRANSMISSION LINE DRIVING

CAPABILITY

■ SYMMETRICAL OUTPUT IMPEDANCE:

|I

|=IOL=24 mA (MIN)

OH

■ BALANCEDPROPAGATIONDELAY S:

≅ t

t

PLH

■ OPERATINGVOLTAGERAN GE:

V

CC

■ PIN AND FUNCTION COMPATIBLEWITH

74SERIES174

■ IMPROVED LATCH-UP IMMUNITY

DESCRIPTION

The AC174 is an high-speed CMOS HEX
D-TYPE FLIP FLOP WITH CLEAR fabricated
with sub-micron silicon gate and double-layer
metal wiring C
power applications mantaining high speed
operation similar to eqivalent Bipolar Schottky

=28%VCC(MIN.)

PHL

(OPR) = 2V to 6V

2

MOS technology. It is ideal for low

74AC174

PRELIMINARY DATA

B

(Plastic Package)

(Micro Package)

ORDERCODES:

74AC174B 74AC174M

TTL.
Information signals applied to D inputs are

transfered to the Q output on the positive going
edgeof the clockpulse.

Whenthe CLEARinput is held low, the Q outputs
are held low independentelyof the other inputs .

All inputs and outputs are equipped with
protectioncircuits againststatic discharge, giving
them 2KV ESD immunity and transient excess
voltage.

M

PINCONNECTION AND IEC LOGIC SYMBOLS

May 1997

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74AC174

INPUTAND OUTPUTEQUIVALENTCIRCUIT

TRUTH TABLE

INP UT S OUT PUTS FUNCT ION

CLEAR D CLOCK Q

L X X L CLEAR
HL L
HH H
HX Q

X:Don’tCare

PIN DESCRIPTION

PI N No SYM B O L NAME AND FUNC T I ON

1 CLEAR Asyncronous Master Reset

(ActiveLOW)

2, 5, 7, 10,

12, 15

3, 4, 6, 11,

13, 14

9 CLOCK Clock Input(LOW-to-HIGH,

8 GND Ground (0V)

16 V

n

Q0 to Q5 Flip-Flop Outpus

D0 to D5 DataInputs

Edge-Triggered)

CC

PositiveSupply Voltage

NO CHANGE

LOGICDIAGRAM

This logic diagram has not be used to estimate propagation delays

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74AC174

ABSOLUTE MAXIMUM RATINGS

Symb o l Parame t er Val u e Uni t

V

V

V

I

I

OK

I

orI

I

CC

T

T

Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied.

RECOMMENDED OPERATINGCONDITIONS

Symb o l Parame t er Value Un i t

V

V

V

T

dt/dv Input Rise and FallTimeV

1) VINfrom30%to70%of V

Supply Voltage -0.5 to +7 V

CC

DC Input Voltage -0.5 to VCC+ 0.5 V

I

DC OutputVoltage -0.5 to VCC+ 0.5 V

O

DC Input Diode Current ± 20 mA

IK

DC OutputDiodeCurrent ± 20 mA
DC OutputCurrent ± 50 mA

O

DC VCCorGround Current ± 300 mA

GND

Storage Temperature -65 to +150

stg

LeadTemperature (10 sec) 300

L

Supply Voltage 2 to 6 V

CC

Input Voltage 0 to V

I

OutputVoltage 0 to V

O

Operating Temperature: -40 to +85

op

=3.0,4.5 or 5.5 V(note1) 8 ns/V

CC

CC

CC
CC

o

C

o

C

V
V

o

C

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