74LVC244AMTR datasheet(1/9 Pages) STMICROELECTRONICS

Nome de Peças	74LVC244AMTR

Descrição Electrónicos	LOW VOLTAGE CMOS QUAD BUS BUFFERS (3-STATE) HIGH PERFORMANCE

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February 2002

s

5V TOLERANT INPUTS

s

HIGH SPEED: tPD = 5.9ns (MAX.) at VCC = 3V

s

POWER DOWN PROTECTION ON INPUTS

AND OUTPUTS

s

SYMMETRICAL OUTPUT IMPEDANCE:

|IOH| = IOL = 24mA (MIN) at VCC = 3V

s

PCI BUS LEVELS GUARANTEED AT 24 mA

s

BALANCED PROPAGATION DELAYS:

tPLH ≅ tPHL

s

OPERATING VOLTAGE RANGE:

VCC(OPR) = 1.65V to 3.6V (1.2V Data

Retention)

s

PIN AND FUNCTION COMPATIBLE WITH

74 SERIES 244

s

LATCH-UP PERFORMANCE EXCEEDS

500mA (JESD 17)

s

ESD PERFORMANCE:

HBM > 2000V (MIL STD 883 method 3015);

MM > 200V

DESCRIPTION

The 74LVC244A is a low voltage CMOS OCTAL

BUS

BUFFER

(3-STATE)

fabricated

with

sub-micron silicon gate and double-layer metal

wiring C2MOS technology. It is ideal for 1.65 to 3.6

VCC operations and low power and low noise

applications.

It can be interfaced to 5V signal environment for

inputs in mixed 3.3/5V system.

G control output governs four BUS BUFFERs.

This device is designed to be used with 3 state

memory address drivers, etc.

It has more speed performance at 3.3V than 5V

AC/ACT family, combined with a lower power

consumption.

All

inputs

and

outputs

are

equipped

with

protection circuits against static discharge, giving

them 2KV ESD immunity and transient excess

voltage.

74LVC244A

LOW VOLTAGE CMOS QUAD BUS BUFFERS (3-STATE)

HIGH PERFORMANCE

.

PIN CONNECTION AND IEC LOGIC SYMBOLS

ORDER CODES

PACKAGE

TUBE

T & R

SOP

74LVC244AM

74LVC244AMTR

TSSOP

74LVC244ATTR

TSSOP

SOP

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