The NXP N74F138D is a high-performance, fast switching 3-to-8 line decoder/demultiplexer integrated circuit designed for use in a wide range of digital applications. This IC is particularly well-suited for implementation in systems that require efficient decoding or demultiplexing of signals, such as in microprocessor or microcontroller-based systems, memory decoding, data routing, and control signal generation.

Featuring a fully static operation, the N74F138D is capable of operating at high speeds while maintaining low power consumption. The device can be driven from either standard TTL or high-speed CMOS logic levels, providing flexibility in interfacing with different types of digital circuits. The decoder accepts three binary weighted inputs (A0, A1, A2) and, when enabled, provides eight mutually exclusive active LOW outputs (Y0 to Y7).

The N74F138D includes three enable inputs, two active LOW (E1, E2) and one active HIGH (E3), which must be satisfied to activate the device's decoding function. If any of the enable inputs are not in the correct state, all outputs will remain in the high impedance state, effectively isolating the outputs from the rest of the circuit.

The device is housed in a 16-pin plastic SO package, which offers a compact footprint for space-constrained applications. The N74F138D operates over a wide temperature range, making it suitable for industrial and commercial temperature environments. Its robust design ensures reliable operation even under harsh conditions.

Key features of the NXP N74F138D include:

• 3-to-8 line decoder/demultiplexer with inverting outputs
• High-speed operation
• Low power consumption
• Compatible with TTL and CMOS logic levels
• Multiple enable inputs for flexible control
• Wide operating temperature range
• 16-pin SO package for compact integration

The N74F138D is a reliable and efficient solution for designers looking to implement decoding or demultiplexing functionality in their digital systems, with the quality and performance expected from NXP Semiconductors.