特性 Features

? Wide Analog Input Voltage Range . . . . . . . . . ±5V (Max)

? Low “On” Resistance

- VCC - VEE = 4.5V. . . . . . . . . . . . . . . . . . . . . . 70Ω (Typ)

- VCC - VEE = 9V . . . . . . . . . . . . . . . . . . . . . . . 40Ω (Typ)

? Low Crosstalk Between Switches

? Fast Switching and Propagation Speeds

? “Break-Before-Make” Switching

? Wide Operating Temperature Range . . . -55oC to 125oC

? HC Types

- 2V to 6V Operation, Control; 0V to 10V Switch

- High Noise Immunity: NIL = 30%, NIH = 30% of VCC

at VCC = 5V

? HCT Types

- 4.5V to 5.5V Operation, Control; 0V to 10V Switch

- Direct LSTTL Input Logic Compatibility,

VIL= 0.8V (Max), VIH = 2V (Min)

- CMOS Input Compatibility, Il ≤ 1μA at VOL, VOH

描述 Description

The ’HC4351, CD74HCT4351, and CD74HC4352 are

digitally controlled analog switches which utilize silicon-gate

CMOS technology to achieve operating speeds similar to

LSTTL with the low power consumption of standard CMOS

integrated circuits.

These analog multiplexers/demultiplexers are, in essence,

the HC/HCT4015 and HC4052 preceded by address latches

that are controlled by an active low Latch Enable input (LE).

Two Enable inputs, one active low (E1), and the other active

high (E2) are provided allowing enabling with either input

voltage level.