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September 2004

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5V TOLERANT INPUTS AND OUTPUTS

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HIGH SPEED:

s

POWER DOWN PROTECTION ON INPUTS

AND OUTPUTS

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SYMMETRICAL OUTPUT IMPEDANCE:

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PCI BUS LEVELS GUARANTEED AT 24 mA

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BALANCED PROPAGATION DELAYS:

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OPERATING VOLTAGE RANGE:

Retention)

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PIN AND FUNCTION COMPATIBLE WITH

74 SERIES 244

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LATCH-UP PERFORMANCE EXCEEDS

500mA (JESD 17)

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ESD PERFORMANCE:

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

MM > 200V

DESCRIPTION

The 74LCX244 is a low voltage CMOS OCTAL

BUS BUFFER (NON-INVERTED) fabricated with

sub-micron silicon gate and double-layer metal

and high speed 3.3V applications; it can be

interfaced to 5V signal environment for both inputs

and outputs.

It has same speed performance at 3.3V than 5V

AC/ACT family, combined with a lower power

consumption.

This device is designed to be used with 3 state

memory address drivers, etc.

All

inputs

and

outputs

are

equipped

with

protection circuits against static discharge, giving

them 2KV ESD immunity and transient excess

voltage.

74LCX244

LOW VOLTAGE CMOS OCTAL BUS BUFFER (3-STATE)

WITH 5V TOLERANT INPUTS AND OUTPUTS

Figure 1: Pin Connection And IEC Logic Symbols

Table 1: Order Codes

PACKAGE

T & R

SOP

74LCX244MTR

TSSOP

74LCX244TTR

TSSOP

SOP

Rev. 8