U74LVX4051

DESCRIPTION 

The U74LVX4051 is a high speed ， low-voltage drive analog 

multiplexer/demultiplexer using silicon gate CMOS technology. In 3V 

and 5V systems these can achieve high-speed operation with the low 

power dissipation that is a feature of CMOS. 

The U74LVX4051 offer analog/digital signal selection as well as 

mixed signals. The 4051 has an 8-Channel configuration. 

The switchses for each channel are turned on by the control pin 

digital signals. 

Although the control signal logical amplitude (VCC-GND) is small,the 

device can perform large-amplitude (VCC-VEE) signal switching. 

For example, if VCC=3V, GND=0V and VEE=-3V, signals between 

-3V and +3V can be switched from the logical circuit using a signal 3V 

power supply. 

All input pins are equipped with a newly developed input protection 

circuit that avoids the need for a diode on the plus side (forword side 

from the input to the VCC). As a result, for example, 5V signals can be 

permitted on the inputs even when the power supply voltage to the 

circuits is off. As a result of this input power protection, the 

U74LVX4051 can be used in a variety of applications, including in the 

system which has two power supplies, and in battery bachup circuits. 

FEATURES

* Low ON resistance: RON=22Ω(Typ.)(VCC-VEE=3V) 

* RON=15Ω(Typ.)(VCC-VEE=6V) 

* High Speed: tpd=3ns (Typ.)(VCC=3V) 

* Low power Dissipation: ICC=4μA (Max.)(TA=25°C) 

* Input level: VIL=0.8V(Max.)(VCC=3V) 

 VIH=2.0V(Min.)(VCC=3V) 

* Power down protection is provided on all control inputs

* Pin and function compatible with U74HC4051 

规格书U74LVX4051