74LVC245A datasheet(1/9 Pages) STMICROELECTRONICS

Part #	74LVC245A

Description	LOW VOLTAGE CMOS OCTAL BUS TRANSCEIVER (NOT INVERTED) HIGH PERFORMANCE

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

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February 2002

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5V TOLERANT INPUTS

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HIGH SPEED: tPD = 6.3ns (MAX.) at VCC = 3V

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POWER DOWN PROTECTION ON INPUTS

AND OUTPUTS

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SYMMETRICAL OUTPUT IMPEDANCE:

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

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PCI BUS LEVELS GUARANTEED AT 24 mA

s

BALANCED PROPAGATION DELAYS:

tPLH ≅ tPHL

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OPERATING VOLTAGE RANGE:

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

Retention)

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PIN AND FUNCTION COMPATIBLE WITH

74 SERIES 245

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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 74LVC245A is a low voltage CMOS OCTAL

BUS TRANSCEIVER (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.

This IC is intended for two-way asynchronous

communication between data buses and the

direction of data transmission is determined by

DIR input. The enable input G can be used to

disable the device so that the buses are effectively

isolated.

It has more speed performance at 3.3V than 5V

AC/ACT family, combined with a lower power

consumption.

All inputs are equipped with protection circuits

against static discharge, giving them 2KV ESD

immunity and transient excess voltage.

All floating bus terminals during High Z State must

be held HIGH or LOW.

74LVC245A

LOW VOLTAGE CMOS OCTAL BUS TRANSCEIVER

(NOT INVERTED) HIGH PERFORMANCE

.

PIN CONNECTION AND IEC LOGIC SYMBOLS

ORDER CODES

PACKAGE

TUBE

T & R

SOP

74LVC245AM

74LVC245AMTR

TSSOP

74LVC245ATTR

TSSOP

SOP

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