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