The SN74151APC is a high-speed 8-input multiplexer/data selector manufactured by Fairchild/ON Semiconductor. This device selects one of eight data sources and routes it to a single output, based on the binary address applied to the select inputs. It's designed for use in high-performance memory decoding or data routing applications.

Applications

• Data routing
• Memory decoding
• Address line multiplexing
• Parallel-to-serial conversion
• Logic function generators

Features

• 8-Line to 1-Line Multiplexer
• High Speed Operation: tpd = 7 ns (typ) at VCC = 5V
• Low Power Dissipation: ICC = 4 mA (typ) at VCC = 5V
• TTL Compatible Inputs
• Complementary Outputs (Y and W)
• Inhibit Capability

Benefits

• Simplifies logic design by reducing component count.
• Enables high-speed data selection, enhancing system performance.
• Reduces power consumption, contributing to energy efficiency.
• Provides flexibility through complementary outputs.
• The inhibit input allows for easy cascading or disabling of the device.

Additional Details

The SN74151APC operates from a 4.75V to 5.25V supply voltage. It is packaged in a 16-pin DIP. The device has a typical propagation delay of 7 ns. The inputs are TTL compatible and require appropriate voltage levels for proper operation. The device also features an inhibit input, which, when asserted, forces the output to a known state, irrespective of the select inputs.

The select inputs (A, B, C) determine which of the eight data inputs (D0-D7) is routed to the output (Y). The complementary output (W) provides the inverse of the selected data input. The inhibit input (E) disables the multiplexer when high, forcing Y to a low state and W to a high state.