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74LCX162244TTR

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

STMicroelectronics 

74LCX162244

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

with 5V tolerant inputs and outputs

Features

■ 5V tolerant inputs and outputs

■ High speed:

– tPD = 4.4ns (Max) at VCC = 3V

■ Power down protection on inputs and outputs

■ Symmetrical output impedance:

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

■ PCI bus levels guaranteed at 12mA

■ Balanced propagation delays:

– tPLH ≅ tPHL

■ 26Ω serie resistor in outputs

■ Operating voltage range:

– VCC (Opr) = 2.0V to 3.6V

■ Pin and function compatible with

74 series 162244

■ Latch-up performance exceeds 500mA

(JESD 17)

■ ESD performance:

– HBM > 2000V

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

TSSOP48

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 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.

The device circuits is including 26Ω series

resistance in the outputs. These resistors permit

to reduce line noise in high speed applications.

All inputs and outputs are equipped with

protection circuits against static discharge, giving

them 2KV ESD immunity and transient excess

voltage.

Order codes

Part number

74LCX162244TTR

Package

TSSOP48

Packaging

Tape and reel

February 2007

Rev 4

1/15

www.st.com

15

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