This is information on a product in full production.

October 2012

Doc ID 4980 Rev 8

1/16

16

74LCX125

Low-voltage CMOS quad bus buffer (3-state)

with 5 V tolerant inputs and outputs

Datasheet

−production data

Features

■ 5 V tolerant inputs and outputs

■ High speed

–tPD = 5.2 ns (max.) at VCC = 3 V

■ Power-down protection on inputs and outputs

■ Symmetrical output impedance

–|IOH| = IOL = 24 mA (min.) at VCC = 3 V

■ PCI bus levels guaranteed at 24 mA

■ Balanced propagation delay

–tPLH ≅ tPHL

■ Operating voltage range

–VCC (opr.) = 2.0 V to 3.6 V

■ Pin and function compatible with 74 series 125

■ Latch-up performance exceeds 500 mA

(JESD 17)

■ ESD performance

– HBM: 2000 V (MIL STD 883 method 3015)

– MM: 200 V

– CDM: 1000 V

Applications

■ Automotive

■ Industrial

■ Computer

■ Consumer

Description

The 74LCX125 device is a low-voltage CMOS

quad bus buffer manufactured with sub-micron

silicon gate and double-layer metal wiring C2MOS

technology. It is ideal for low-power and high-

speed 3.3 V applications and can be interfaced to

a 5 V signal environment for both inputs and

outputs.

The device requires the 3-state control input G to

be set high to place the output in the high

impedance state.

It has the same speed performance at 3.3 V as

the 5 V AC/ACT family, combined with lower

power consumption.

All inputs and outputs are equipped with

protection circuits against static discharge, giving

them 2 kV ESD immunity and transient excess

voltage.

TSSOP14

SO-14

Table 1.

Device summary

Order code

Temperature range

Package

Packaging

Marking

74LCX125TTR

-40/+85 °C

TSSOP14

Tape and reel

LCX125

74LCX125YTTR(1)

-40/+85 °C

TSSOP14 (automotive grade)

Tape and reel

LCX125Y

74LCX125MTR

-40/+85 °C

SO-14

Tape and reel

74LCX125

74LCX125YMTR(1)

-40/+85 °C

SO-14 (automotive grade)

Tape and reel

74LCX125Y

1.

Qualification and characterization according to AEC Q100 and Q003 or equivalent, advanced screening according to AEC

Q001 and Q002 or equivalent.

www.st.com