The 74HCT154PW,118 is a 4-to-16 line decoder/demultiplexer from Nexperia. This device accepts four binary address inputs (A0-A3) and, depending on the state of two enable inputs (E1 and E2), selects one of the sixteen output lines (Y0-Y15). The selected output goes LOW, while all other outputs remain HIGH. The HCT family is characterized by its high-speed performance and CMOS low power dissipation, combined with TTL compatible input thresholds.

Applications

• Memory address decoding
• Data routing
• Chip selection
• Address decoding in microprocessor systems
• Industrial control systems

Features

• 4-to-16 line decoding/demultiplexing
• TTL compatible input thresholds
• CMOS technology for low power consumption
• High-speed operation
• Output enable inputs for easy expansion
• Complies with JEDEC standard no. 7A

Benefits

• Simplifies memory addressing schemes
• Reduces power consumption compared to TTL logic
• Enhances system performance with fast decoding speeds
• Allows for larger memory maps through expansion
• Ensures compatibility with other logic devices

Additional Details

The 74HCT154PW,118 operates within a supply voltage range of 4.5V to 5.5V. It is available in a TSSOP24 package. The device requires both enable inputs (E1 and E2) to be LOW for the decoder to be active. If either enable input is HIGH, all outputs are forced HIGH. The device's inputs include clamp diodes, enabling the use of current limiting resistors to interface inputs to voltages in excess of VCC.