The HD74HC139FP-TR is a high-speed CMOS dual 2-to-4 line decoder/demultiplexer manufactured by Renesas Electronics America. It utilizes silicon gate CMOS technology to achieve high-speed performance with low power consumption. The device contains two independent 2-to-4 line decoders. Each decoder has two address inputs (A0, A1) and an enable input (E). When the enable input is high, all outputs are forced high.

Applications

• Memory chip selection
• Address decoding
• Logic level translation
• Data routing and distribution
• Instrumentation and control systems

Features

• High Speed: tpd = 13 ns (typ.) at VCC = 5V
• Low power dissipation: ICC = 4 μA (max.) at Ta = 25°C
• High noise immunity: VNIH = VNIL = 28% VCC (min.)
• Output drive capability: 10 LSTTL loads
• Cascadable for larger decoding functions
• Wide operating voltage range: 2V to 6V
• Temperature range: -40°C to +85°C
• Package: SOP-16 (Small Outline Package)

Benefits

• Efficient memory addressing due to the dual 2-to-4 line decoding capability.
• Reduced power consumption compared to TTL logic, suitable for battery-powered applications.
• Simplified system design due to high noise immunity.
• Easy cascading for larger decoding applications.
• Versatile application due to wide operating voltage range.

Additional Details

The HD74HC139FP-TR offers a propagation delay of typically 13 ns at 5V, allowing for high-speed operation in digital circuits. Its output drive capability is sufficient for driving up to 10 LSTTL loads. The device is designed to operate from -40°C to +85°C, making it suitable for industrial and automotive applications. The SOP-16 package provides a compact footprint for high-density board layouts. The outputs are active-low.