74LS242
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Description:
The 74LS242 is a quad 2-line to 1-line data selector/multiplexer IC designed for digital logic applications. It features four independent selector/multiplexer circuits, each capable of selecting one of two data inputs (A and B) based on the control inputs (S0 and S1). The selected data is then outputted on a single output line (Y). This IC enables efficient data routing and selection in digital circuits, making it suitable for applications where multiple data sources need to be selectively processed or routed.
Key Features:
- Quad 2-line to 1-line data selector/multiplexer
- Four independent selector circuits
- Wide operating voltage range: typically 4.75V to 5.25V
- Low power consumption
- Fast propagation delay: typically 15 ns at VCC = 5V
- TTL compatible inputs and outputs
- Package Type: 16-pin DIP (Dual In-line Package)
- Supply Voltage (VCC): 4.75V to 5.25V
- Input Voltage (VIN): 0V to VCC
- Output Voltage (VOUT): 0V to VCC
- Input High Voltage (VIH): 2V (min) at VCC = 5V
- Input Low Voltage (VIL): 0.8V (max) at VCC = 5V
- Output Current (IOH, IOL): ±8 mA (max)
- Quiescent Supply Current (ICC): 4 mA (typical) at VCC = 5V
- Operating Temperature Range: 0°C to +70°C
- Data selection and multiplexing in digital systems
- Address decoding in microprocessor systems
- Control and routing of digital signals in embedded systems
- Interface circuitry for peripherals and memory devices
Technical Specifications:
- Logic Family: CMOS
- Number of Channels: 3
- Switch Configuration: Single-Pole Double-Throw (SPDT)
- Supply Voltage Range: 3V to 15V
- “ON” Resistance (R_ON): 125Ω typical at V_DD = 10V
- “OFF” Leakage Current (I_OFF): ±100pA typical at V_DD = 10V
- Control Input Voltage (V_IH): 0.7 V_DD min, 0.3 V_DD max
- Maximum Operating Frequency: 40 MHz at V_DD = 10V
Applications:
- Signal routing and switching
- Analog and digital multiplexing
- Audio and video signal processing
- Data acquisition systems
- Test equipment