74LCX16244_07 datasheet(1/15 Pages) STMICROELECTRONICS

Part #	74LCX16244

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

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February 2007

Rev 6

1/15

15

74LCX16244

Low voltage CMOS 16-bit bus buffer (3-state)

with 5V tolerant inputs and outputs

Features

■ 5V tolerant inputs and outputs

■ High speed:

–tPD = 4.5ns (Max) at VCC = 3V

■ Power down protection on inputs and outputs

■ Symmetrical output impedance:

–|IOH| = IOL = 24mA (Min) at VCC = 3V

■ PCI bus levels guaranteed at 24mA

■ Balanced propagation delays:

–tPLH ≅ tPHL

■ Operating voltage range:

–VCC (Opr) = 2.0V to 3.6V

■ Pin and function compatible with

74 series 16244

■ Latch-up performance exceeds

500mA (JESD 17)

■ ESD performance:

– HBM > 2000V

(MIL STD 883 method 3015); MM > 200V

Description

The 74LCX16244 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

BUFFERS. 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.

This device is designed to be used with 3 state

memory address drivers, etc.

It has same 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.

TSSOP48

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Part number

Package

Packaging

74LCX16244TTR

TSSOP48

Tape and reel

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