STMicroelectronics M74HC573 User Manual

M74HC573

OCTAL D-TYPE LATCH

WITH 3 STATE OUTPUT NON INVERTING

■ HIGH SPEED:

t

= 13ns (TYP.) at VCC = 6V

PD

■ LOW POWER DISSIPATION:

I

= 4µA(MAX.) at TA=25°C

CC

■ HIGH NOISE IMMUNITY:

= V

V

NIH

■ SYMMETRICAL OUTPUT IMPEDANCE:

|I

| = IOL = 6mA (MIN)

OH

■ BALANCED PROPAGATION DELAYS:

t

≅ t

PLH

■ WIDE OPERATING VOLTAGE RANGE:

V

(OPR) = 2V to 6V

CC

■ PIN AND FUNCTION COMPATIBLE WITH

= 28 % VCC (MIN.)

NIL

PHL

74 SERIES 573

DESCRIPTION

The M74HC573 is an high speed CMOS OCTAL LATCH WITH 3-STATE OUTPUTS fabricated with silicon gate C

2

MOS technology.

This 8-BIT D-Type la tches is controlled by a latch enable input (LE) and output enable input (OE

).

While the LE in put is held at a high level, the Q outputs will follow the data input precisely. Wh en LE is taken low, the Q outputs will be latched precisely at the logic level of D input data.

TSSOPDIP SOP

ORDER CODES

PACKAGE TUBE T & R

DIP M74HC573B1R

SOP M74HC573M1R M74HC573RM13TR

TSSOP M74HC573TTR

While the OE

input is at low level, the eight outputs will be in a norm al logic state (high or low logic level) and while is at hig h level the outputs will be in a high impedance state. The 3-State output configuration and the wide choice of outline make bus organized system simple. All inputs are equipped with protection circuits against static discharge and transient excess voltage.

PIN CONNECTION AND IEC LOGIC SYMBOLS

1/12July 2001

M74HC573

INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION

PIN No SYMBOL NAME AND FUNCTION

1OE

2, 3, 4, 5, 6,

7, 8, 9

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

18, 19

11 LE Latch Enable Input 10 GND Ground (0V) 20 V

TRUTH TABLE

INPUTS OUTPUTS

D0 to D7 Data Inputs

Q0 to Q7 3 State Latch Outputs

CC

3 State Output Enable Input (Active LOW)

Positive Supply Voltage

OE

HXXZ

L L X NO CHANGE (*) LHLL LHHH

X: Don’t Care Z: High Impedance (*): Q Outputs are latched at the time when the LE inpu t is taken low logic level.

LE D Q

LOGIC DIAGRAM

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M74HC573

ABSOLUTE MAXIMUM RATINGS

Symbol Parameter Value Unit

V

I

OK

I

or I

CC

P

T

Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is not implied (*) 500mW at 65

RECOMMENDED OPERATING CONDITIONS

Symbol Parameter Value Unit

V

T

t

r

Supply Voltage

CC

DC Input Voltage -0.5 to VCC + 0.5

I

DC Output Voltage -0.5 to VCC + 0.5

O

DC Input Diode Current

IK

DC Output Diode Current DC Output Current

O

DC VCC or Ground Current

GND

Power Dissipation

D

Storage Temperature

stg

Lead Temperature (10 sec)

L

°C; derate to 300mW by 10mW/°C from 65°C to 85°C

Supply Voltage

CC

Input Voltage 0 to V

I

Output Voltage 0 to V

O

Operating Temperature

op

Input Rise and Fall Time VCC = 2.0V

, t

f

V V

CC CC

= 4.5V = 6.0V

-0.5 to +7 V

± 20 mA ± 20 mA ± 35 mA ± 70 mA

500(*) mW

-65 to +150 °C

300 °C

2 to 6 V

CC CC

-55 to 125 °C 0 to 1000 ns

0 to 500 ns 0 to 400 ns

V V

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M74HC573

DC SPECIFICATIONS

Symbol Parameter

V

I

High Level Input

IH

Voltage

Low Level Input

IL

Voltage

High Level Output

OH

Voltage

Low Level Output

OL

Voltage

I

Input Leakage

I

Current High Impedance

OZ

Output Leakage Current

Quiescent Supply

CC

Current

Test Condition Value

V

(V)

CC

= 25°C

A

Min. Typ. Max. Min. Max. Min. Max.

-40 to 85°C -55 to 125°C

T

2.0 1.5 1.5 1.5

6.0 4.2 4.2 4.2

2.0 0.5 0.5 0.5

6.0 1.8 1.8 1.8

2.0

4.5

6.0

4.5

6.0

2.0

4.5

6.0

4.5

6.0

IO=-20 µA I

=-20 µA

O

I

=-20 µA

O

I

=-6.0 mA

O

I

=-7.8 mA

O

IO=20 µA I

=20 µA

O

I

=20 µA

O

I

=6.0 mA

O

I

=7.8 mA

O

= VCC or GND

V

I

= VIH or V

V

I

IL

VO = VCC or GND

= VCC or GND

V

I

1.9 2.0 1.9 1.9

4.4 4.5 4.4 4.4

5.9 6.0 5.9 5.9

4.18 4.31 4.13 4.10

5.68 5.8 5.63 5.60

0.0 0.1 0.1 0.1

0.17 0.26 0.33 0.40

0.18 0.26 0.33 0.40

± 0.1 ± 1 ± 1 µA

± 0.5 ± 5 ± 10 µA

44080µA

Unit

V4.5 3.15 3.15 3.15

V4.5 1.35 1.35 1.35

V

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