MC74HC4016

The ON/OFF Control pins should be at V_CC or GND logic levels, V_CC being recognized as logic high and GND being recognized as a logic low. Unused analog inputs/outputs may be left floating (not connected). However, it is advisable to tie unused analog inputs and outputs to V_CC or GND through a low value resistor. This minimizes crosstalk and
feedthrough noise that may be picked up by the unused I/O pins.

The maximum analog voltage swings are determined by the supply voltages V_CC and GND. The positive peak analog
voltage should not exceed V_CC. Similarly, the negative peak analog voltage should not go below GND. In the example
below, the difference between V_CC and GND is twelve volts. Therefore, using the configuration in Figure 16, a maximum analog signal of twelve volts peaktopeak can be controlled.

When voltage transients above V_CC and/or below GND are anticipated on the analog channels, external diodes (Dx) are recommended as shown in Figure 17. These diodes should be small signal, fast turnon types able to absorb the
maximum anticipated current surges during clipping. An alternate method would be to replace the Dx diodes with
MO`sorbs (Motorola high current surge protectors). MO`sorbs are fast turnon devices ideally suited for precise DC protection with no inherent wearout mechanism.

The MC54/74HC4016 utilizes silicongate CMOS technology to achieve fast propagation delays, low ON resistances, and low OFFchannel leakage current. This bilateral switch/multiplexer/demultiplexer controls analog and digital voltages that may vary across the full powersupply range (from V_CC to GND).

The HC4016 is identical in pinout to the metalgate CMOS MC14016 and MC14066. Each device has four independent switches. MC74HC4016  has been designed so that the ON resistances (R_ON) are much more linear over input voltage than R_ON of metalgate CMOS analog switches.

MC74HC4016 is identical in both function and pinout to the HC4066. The ON/OFF Control inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LSTTL outputs. For analog switches with voltagelevel translators, see the HC4316. For analog switches with lower R_ON characteristics, use the HC4066.