74LCXH162244 datasheet(1/10 Pages) STMICROELECTRONICS

Il numero della parte	74LCXH162244

Spiegazioni elettronici	Low voltage CMOS 16-bit bus buffer (3-state) with 5V tolerant inputs and outputs

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Produttore elettronici	STMICROELECTRONICS [STMicroelectronics]

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February 2003

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5V TOLERANT INPUTS AND OUTPUTS

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HIGH SPEED :

tPD = 4.4 ns (MAX.) at VCC =3V

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POWER DOWN PROTECTION ON INPUTS

AND OUTPUTS

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SYMMETRICAL OUTPUT IMPEDANCE:

|IOH|= IOL = 12mA (MIN) at VCC =3V

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PCI BUS LEVELS GUARANTEED AT 12 mA

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BALANCED PROPAGATION DELAYS:

tPLH ≅ tPHL

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26

Ω SERIE RESISTORS IN OUTPUTS

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BUS HOLD PROVIDED ON DATA INPUT

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OPERATING VOLTAGE RANGE:

VCC(OPR) = 2.0V to 3.6V (1.5V Data

Retention)

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PIN AND FUNCTION COMPATIBLE WITH

74 SERIES H162244

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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 74LCX162244 is a low voltage CMOS 16 BIT

BUS BUFFER (NON-INVERTED) fabricated with

sub-micron silicon gate and double-layer metal

wiring C2MOS technology. It is ideal for low power

and high speed 3.3V applications; it can be

interfaced to 5V signal environment for both inputs

and outputs.

Any nG output control governs four BUS BUFF-

ERS. Output Enable input (nG) tied together gives

full 16-bit operation.

When nG is LOW, the outputs are on. When nG is

HIGH, the output are in high impedance state.

Active bus-hold circuitry is provided to hold un-

used or floating data inputs at a valid logic level.

This device is designed to be used with 3 state

memory address drivers, etc.

The device circuits is including 26

Ω series resis-

tance in the outputs. These resistors permit to re-

duce line noise in high speed applications.

All inputs and outputs are equipped with protec-

tion circuits against static discharge, giving them

2KV ESD immunity and transient excess voltage.

74LCXH162244

LOW VOLTAGE CMOS 16-BIT BUS BUFFER (3-STATE)

WITH 5V TOLERANT INPUTS AND OUTPUTS

ORDER CODES

PACKAGE

TUBE

T & R

TSSOP

74LCXH162244TTR

TSSOP

PIN CONNECTION

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