1. General description

The 74HC154; 74HCT154 is a 4-to-16 line decoder/demultiplexer. It decodes four binary weighted

address inputs (A0 to A3) to sixteen mutually exclusive outputs (Y0 to Y15). The device features

two input enable (E0 and E1) inputs. A HIGH on either of the input enables forces the outputs

HIGH. The device can be used as a 1-to-16 demultiplexer by using one of the enable inputs as

the multiplexed data input. When the other enable input is LOW the addressed output will follow

the state of the applied data. Inputs include clamp diodes. This enables the use of current limiting

resistors to interface inputs to voltages in excess of VCC.

2. Features and benefits

• Wide supply voltage range from 2.0 to 6.0 V

• CMOS low power dissipation

• High noise immunity

• Latch-up performance exceeds 100 mA per JESD 78 Class II Level B

• 16-line demultiplexing capability

• Decodes 4 binary-coded inputs into 16 mutually-exclusive outputs

• Input levels:

• For 74HC154: CMOS level

• For 74HCT154: TTL level

• Complies with JEDEC standards:

• JESD8C (2.7 V to 3.6 V)

• JESD7A (2.0 V to 6.0 V)

• ESD protection:

• HBM JESD22-A114F exceeds 2000 V

• MM JESD22-A115-A exceeds 200 V

• Multiple package options

• Specified from -40 °C to +85 °C and -40 °C to +125 °C

74HCT154D属于集成电路（IC） > 信号开关，多路复用器，解码器。安世半导体(中国)有限公司制造生产的74HCT154D信号开关，多路复用器，解码器逻辑型信号开关、多路复用器和编码器 IC 可用于对以数字格式表示数据的电信号进行路由和选择。这些器件与设计用于模拟信号的类似产品有所不同，它们保留的信息表示为两个电状态之一，而不是两个外部界限内的无穷变化量。