HEF4555B

HEF4555B 1-of-4 decoder/demultiplexer Rev. 8 — 15 March 2022 Product data sheet 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 4. Ordering information Table 1. Ordering information Type number Package Temperature range HEF4555BT -40 °C to +85 °C Name SO16 Description plastic small outline package; 16 leads; body width 3.9 mm Version SOT109-1 Nexperia 5. Functional diagram 2 1A0 3 1A1 1 1E 14 2A0 13 2A1 ...