1.

General description

The 74HC4852; 74HCT4852 are high-speed Si-gate CMOS devices and are specified in

compliance with JEDEC standard no. 7A.

The 74HC4852; 74HCT4852 are dual 4-channel analog multiplexers/demultiplexers with

common select inputs (S0 and S1). Both multiplexers have a common active LOW enable

input (E), four independent inputs/outputs (nY0 to nY3) and two common inputs/outputs

(1Z, 2Z). The devices feature injection-current effect control, which has excellent value in

automotive applications where voltages in excess of the supply voltage are common.

With E LOW, two of the eight switches are selected (low impedance ON-state) by S0 and

S1. With E HIGH, all switches are in the high-impedance OFF-state, independent of S0

and S1.

The injection-current effect control allows signals at disabled analog input channels to

exceed the supply voltage without affecting the signal of the enabled analog channel. This

eliminates the need for external diode/resistor networks typically used to keep the analog

channel signals within the supply-voltage range.

2.

Features

74HC4852; 74HCT4852

Dual 4-channel analog multiplexer/demultiplexer with

injection-current effect control

Rev. 03 — 2 September 2008

Product data sheet