CD74AC138M96

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CD74AC138M96 is a general-purpose 3-to-8 line decoder/demultiplexer designed as a 1-of-8 high decoder using three active low inputs. It performs the information-handling function of converting information from the 3-line to the 8-line form. This device is fabricated with the Schottky barrier diode process for high speed, and high output drive. The device functions as a 3-4-line decoder, 4-to-16 line decoder, priority encoder, or 1-of-8 decoder. This application field is due to its capability to use an active-low inputs, as well as its high speed operation.

The working principle of the device is based on three active-low TTL compatible inputs (A, B and C) and its three active-high outputs (1-8). When A, B and C inputs are at logic low level, the corresponding 1-8 output is at logic high level. For example, when A = 0, B = 0, and C = 0, the 1 output is at a logic high level.

The device also has an active-high enable (G) input. When the enable input is at a logic high level, all outputs are in the inactive at the logic low level. When the enable input is driven to a logic low level, all outputs respond to logic combinations at the A, B and C inputs. The device is designed such that both true and complementary outputs are completely active at the same time. This makes it advantageous for enabling CMOS memories or 4-bit bidirectional buffers.

The potential applications for the CD74AC138M96 (Logic - Signal Switches, Multiplexers, Decoders) are diverse and include bus interface communication, multiplexing, various logical operations, memory decoding, line buffering, signal routing and many more. For example, it can be used in serial-to-parallel converters, analog-to-digital and digital-to-analog converters, address decoders and multiplexers. The active-low inputs make it a suitable choice for working with high-level logic devices, such as EPROMs, FRAMS, and DRAMs.

In summary, the CD74AC138M96 (Logic - Signal Switches, Multiplexers, Decoders) is a powerful and versatile general-purpose 3-to-8 line decoder/demultiplexer that can be used in a wide variety of applications. It can act as a 3-4 or 4-16 line decoder, priority encoder, or 1-of-8 decoder depending on the logic levels at the A, B and C inputs. With a wide range of applications, it is sure to find a place in many circuit designs.

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