CDx4HC405x and CDx4HCT405x devices are digitally controlled analog switches, which use silicon gate CMOS technology and the low power consumption characteristics of standard CMOS integrated circuits to achieve a running speed close to LSTTL.

The analog multiplexer and demultiplexer can control the analog voltage, which may change in the whole power supply voltage range (for example, VCC becomes VEE). It is a bidirectional switch and can use any analog input as the output, and vice versa. The switch has low on resistance and low off leakage. In addition, the device also has an enable control. When it is at a high level, all switches will be disabled and placed in an off state.

Meet the requirements of automobile application
Wide analog input voltage range: 5v (maximum)
Low on-resistance:
70Ω (typical) (VCC–VEE = 4.5V)
40Ω (typical) (VCC–VEE = 9V)
Low crosstalk between switches
Fast switching and propagation speed
Break-before-make switch
Wide operating temperature range:–40 C to+125 C.
Working control voltage: 4.5V to 5.5v.
Switching voltage: 0V to 10V
Direct LSTTL input logic compatibility VIL = 0.8V (maximum), VIH = 2V (minimum).
CMOS input compatibility II ≤ 1µA at VOL and VOH.