The document describes the features of the 74HC/HCT4351 8-channel analog multiplexer/demultiplexer, including wide analog input voltage range, low ON resistance, and logic level translation.
The Philips 74HC/HCT4351 is a high-speed Si-gate CMOS device designed as an 8-channel analog multiplexer/demultiplexer with three select inputs, two enable inputs, and a latch enable input. It supports logic level translation to enable 5 V logic to communicate with +5 V analog signals and features a typical 'break before make' characteristic.
The device includes address latches and offers non-standard output capability. It operates with supply voltages ranging from 2.0 to 10.0 V for the HC series and 4.5 to 5.5 V for the HCT series. The analog inputs and outputs can swing between the positive and negative supply limits.
| Number of Channels | 8-channel |
|---|---|
| Supply Voltage Range (HC) | 2.0 to 10.0 V |
| Input Capacitance | 3.5 pF |
| Propagation Delay (Typical) | 14 ns |
The device is suitable for analog multiplexing and demultiplexing, digital multiplexing and demultiplexing, and signal gating.
The data at the select inputs may be latched by using the active LOW latch enable input (LE). When LE is HIGH the latch is transparent.