HEF4555BT集成電路（IC）的信號開關(guān)多路復(fù)用器解碼器規(guī)格書PDF中文資料

1. General description

The HEF4555B contains two 1-of-4 decoders/demultiplexers. Each has two address inputs (nA0

and nA1, an active LOW enable input (nE) and four mutually exclusive outputs which are active

HIGH (nY0 to nY3). When used as a decoder, nE when HIGH, forces nY0 to nY3 LOW. When used

as a demultiplexer, the appropriate output is selected by the information on nA0 and nA1 with nE

as data input. All unselected outputs are LOW.

It operates over a recommended VDD power supply range of 3 V to 15 V referenced to VSS (usually

ground). Unused inputs must be connected to VDD, VSS, or another input.

2. Features and benefits

? Wide supply voltage range from 3.0 V to 15.0 V

? CMOS low power dissipation

? High noise immunity

? Fully static operation

? 5 V, 10 V, and 15 V parametric ratings

? Standardized symmetrical output characteristics

? Complies with JEDEC standard JESD 13-B

? ESD protection:

? HBM JESD22-A114F exceeds 2000 V

? MM JESD22-A115-B exceeds 200 V

? Specified from -40 °C to +85 °C

3. Applications

? Code conversion

? Address decoding

? Demultiplexing: when using the enable input as data input