74vhc574 STMicroelectronics, 74vhc574 Datasheet

74vhc574

Manufacturer Part Number

74vhc574

Description

Octal D-type Flip Flop With 3 State Output Non Inverting

Manufacturer

STMicroelectronics

Datasheet

1.74VHC574.pdf (14 pages)

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Download datasheet (309Kb)

DESCRIPTION

The 74VHC574 is an advanced high-speed

CMOS OCTAL D-TYPE FLIP FLOP with 3 STATE

OUTPUTS NON INVERTING fabricated with

sub-micron silicon gate and double-layer metal

wiring C

These 8 bit D-Type flip-flop is 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 the logic states 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

Figure 1: Pin Connection And IEC Logic Symbols

November 2004

HIGH SPEED:

LOW POWER DISSIPATION:

HIGH NOISE IMMUNITY:

POWER DOWN PROTECTION ON INPUTS

SYMMETRICAL OUTPUT IMPEDANCE:

BALANCED PROPAGATION DELAYS:

OPERATING VOLTAGE RANGE:

PIN AND FUNCTION COMPATIBLE WITH

74 SERIES 574

IMPROVED LATCH-UP IMMUNITY

LOW NOISE: V

MAX

PLH

NIH

= 4 A (MAX.) at T

| = I

(OPR) = 2V to 5.5V

= 180 MHz (TYP.) at V

= V

MOS technology.

PHL

NIL

= 8 mA (MIN)

= 28% V

OLP

= 0.9V (MAX.)

=25°C

(MIN.)

WITH 3 STATE OUTPUTS NON INVERTING

= 5V

Table 1: Order Codes

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.

Power down protection is provided on all inputs

and 0 to 7V can be accepted on inputs with no

regard to the supply voltage. This device can be

used to interface 5V to 3V.

All inputs and outputs are equipped with

protection circuits against static discharge, giving

them 2KV ESD immunity and transient excess

voltage.

OCTAL D-TYPE FLIP FLOP

PACKAGE

TSSOP

SOP

74VHC574

Rev. 4

74VHC574MTR

74VHC574TTR

TSSOP

T & R

1/14

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