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M74ACT574B

OCTAL D-TYPE FLIP FLOP WITH 3 STATE OUTPUT NON INVERTING

STMicroelectronics 

®

74ACT574

OCTAL D-TYPE FLIP FLOP

WITH 3 STATE OUTPUT NON INVERTING

s HIGH SPEED:

fMAX = 250 MHz (TYP.) at VCC = 3.3V

s LOW POWER DISSIPATION:

ICC = 8 µA (MAX.) at TA = 25 oC

s COMPATIBLE WITH TTL OUTPUTS

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

s 50Ω TRANSMISSION LINE DRIVING

CAPABILITY

s SYMMETRICAL OUTPUT IMPEDANCE:

|IOH| = IOL = 24 mA (MIN)

s BALANCED PROPAGATION DELAYS:

tPLH ≅ tPHL

s OPERATING VOLTAGE RANGE:

VCC (OPR) = 4.5V to 5.5V

s PIN AND FUNCTION COMPATIBLE WITH

74 SERIES 574

s IMPROVED LATCH-UP IMMUNITY

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

wiring C2MOS technology.

These 8 bit D-Type flip-flops are controlled by a

clock input (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.

PIN CONNECTION AND IEC LOGIC SYMBOLS

DIP

PACKAGE

DIP

SOP

TSSOP

SOP

TSSOP

ORDER CODES

T UB E

T&R

M74ACT574B

M74ACT574M M74ACT574MTR

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

impedance state.

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

while the outputs are 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.

February 2000

1/11

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