74HCT4051D中文資料東芝數(shù)據(jù)手冊PDF規(guī)格書

Functional Description

74HCT4051D:8-Channel Analog Multiplexer/Demultiplexer

74HCT4052D:Dual 4-Channel Analog Multiplexer/Demultiplexer

General

The 74HCT4051D/74HCT4052D are high speed CMOS ANALOG MULTIPLEXER/DEMULTIPLEXER

fabricated with silicon gate C2MOS 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 74HCT4051D has an 8 channel configuration and the 74HCT4052D 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 (Note 1)

(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