Product Overview: SN74HC253D Dual 4-Line To 1-Line Data Selectors/Multiplexers With 3-State Outputs

The SN74HC253D from Texas Instruments is a high-performance, dual 4-line to 1-line data selector/multiplexer with 3-state outputs that is designed for 2-V to 6-V VCC operation. This integrated circuit features two individual 4-line selectors/multiplexers with separate enable inputs. When the output enable (OE) is low, the device passes the selected data from its corresponding A or B inputs to its Y output. When OE is high, the outputs are in a high-impedance state, which means the outputs do not load the bus when the selectors are not in use.

The SN74HC253D's multiple input and output configurations make it versatile for a wide range of applications, from data routing and signal gating to communication systems. The device's high current drive capability (+/-6mA at the output) ensures a good signal integrity on the bus lines.

Key Features:

• Wide Operating Voltage Range of 2 V to 6 V
• Outputs Can Drive Up To 15 LSTTL Loads
• Low Power Consumption: 80-µA Maximum ICC
• Typical tpd = 13 ns
• ±6-mA Output Drive at 5 V
• Low Input Current of 1 µA Maximum
• Two Separate Enable Inputs for Each Multiplexer
• 3-State Outputs for Connection to System Buses

Encased in an SOIC-16 package, the SN74HC253D ensures a compact footprint on the PCB while providing the robustness and reliability expected from Texas Instruments components. The device is characterized for operation from -40°C to 85°C, making it suitable for commercial applications as well as demanding industrial environments.

Whether used in data acquisition systems, communication interfaces, or control circuits, the SN74HC253D provides a high-performance solution for your digital logic selection needs. Its combination of speed, low power, and flexible 3-state outputs make it a valuable component for any digital system designer looking to optimize signal routing with minimal power draw and space.