74HCT4051FT中文資料東芝數(shù)據(jù)手冊(cè)PDF規(guī)格書

Functional Description

74HCT4051FT:8-Channel Analog Multiplexer/Demultiplexer

74HCT4052FT:Dual 4-Channel Analog Multiplexer/Demultiplexer

General

The 74HCT4051FT/74HCT4052FT are high speed CMOS ANALOG MULTIPLEXER/DEMULTIPLEXER

fabricated with silicon gate CMOS technology. They achieve the high speed operation similar to equivalent LSTTL

while maintaining the CMOS low power dissipation. This device may be used as a level converter for interfacing

TTL or NMOS to High Speed CMOS. This inputs are compatible with TTL, NMOS and CMOS output voltage

levels.

The 74HCT4051FT has an 8 channel configuration and the 74HCT4052FT has a 4 channel × 2 configuration.

The digital signal to the control terminal turns ON the corresponding switch of each channel a large amplitude

signal (VCC - VEE) can then be switched by the small logical amplitude (VCC - GND) control signal.

For example, in the case of VCC = 5 V, GND = 0 V, VEE = -5 V, signals between -5 V and +5 V can be switched from

the logical circuit with a single power supply of 5 V. As the ON-resistance of each switch is low, they can be

connected to circuits with low input impedance.

All inputs are equipped with protection circuits against static discharge or transient excess voltage.

Features

(1) Wide operating temperature range: Topr = -40 to 125

(2) Low power dissipation: ICC = 4.0 μA (max) (VCC = 5.5 V, VEE = GND, Ta = 25 )

(3) Compatible with TTL output: VIH = 2.0 V (min), VIL = 0.8 V (max)

(4) Wide interfacing ability: LSTTL, NMOS, CMOS

(5) Low ON-resistance: RON = 50 Ω (typ.) at VCC - VEE = 9 V

(6) High degree of linearity: THD = 0.020 (typ.) at VCC - VEE = 9 V