The TC74VHC138AF is a high-speed CMOS 3-to-8 Line Decoder/Demultiplexer manufactured by Toshiba Semiconductor and Storage. This device accepts three binary address inputs (A0, A1, A2) and enables one of eight outputs, depending on the address. The VHC family provides high speed and low power dissipation. The TC74VHC138AF is ideal for memory chip selecting and data routing applications.

Applications

• Memory address decoding
• Data routing
• Chip selection
• Logic function generation
• Digital system control

Features

• High-speed operation: tpd = 4.7 ns (typ.) at VCC = 5 V
• Low power dissipation: ICC = 4 μA (max.) at Ta = 25 °C
• Wide operating voltage range: VCC = 2 V to 5.5 V
• High noise immunity: VNIH = VNIL = 28 % VCC (min.)
• 3-to-8 line decoding
• Three enable inputs for easy expansion
• Available in SOP16 package

Benefits

• Improved system performance due to high-speed operation
• Reduced power consumption, leading to energy efficiency
• Flexible integration into various systems with a wide operating voltage range
• Enhanced system reliability due to high noise immunity
• Simplified address decoding and data routing
• Easy expansion with multiple enable inputs
• Compact design facilitated by the SOP16 package

Additional Details

The TC74VHC138AF is a 3-to-8 line decoder/demultiplexer with three enable inputs (E1, E2, and E3). The device decodes one of eight lines based on the binary input applied to address inputs A0, A1, and A2. The three enable inputs can be used for cascading devices for decoding larger address spaces. This high-speed decoder/demultiplexer is ideal for use in high-performance memory systems and data routing applications.

Package: SOP16

Operating Temperature Range: -40°C to +85°C