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Rochester Electronics SN74LS123N Environmental and export classification status description

of SN74LS123N The SN74LS123N is a dual retriggerable monostable multivibrator, which can produce a single output pulse of a specific width in response to an input trigger signal. It is designed for use in gating, timing, and pulse-width modulation applications. The device offers low-power operation and high-speed capabilities. Functions - Monostable Operation: Outputs a single pulse of a predetermined duration in response to a trigger input. - Retriggerable: Can be retriggered while the output is still high, thus extending the pulse width. - Adjustable Pulse Width: The pulse width can be adjusted by external resistors and capacitors. - Low Power Consumption: Operates with reduced power compared to earlier versions of similar devices. Applications - Timers: Used for creating time delays in circuits. - Pulse Generation: Generate specific-length pulses for various applications. - Frequency Division: Function as frequency dividers in digital circuits. - Event Counters: Used in events counting and monitoring applications. Alternative Parts - 74HC123: A high-speed counterpart with similar functionality. - 74HCT123: Can be used in systems utilizing TTL-compatible logic levels. - MC14538: A CMOS alternative with monostable multivibrator functionality. - LM555: A well-known timer IC that can also provide monostable operation. Embedded Modules - Timers and Counters Modules: Used in embedded systems for timing applications. - Logic Control Modules: Can be a part of larger logic control systems in microcontroller and FPGA designs. - Signal Conditioning Modules: Serve in refining signals for processing in embedded applications. Related Q&A 1. Q: What is the main purpose of the SN74LS123N? A: The SN74LS123N is used as a monostable multivibrator to generate single output pulses of a predetermined duration in response to an input trigger. 2. Q: How can you adjust the pulse width of the SN74LS123N? A: The pulse width can be adjusted by changing the values of the external resistors and capacitors connected to the device. 3. Q: Can the SN74LS123N be retriggered during a pulse? A: Yes, the SN74LS123N is retriggerable, meaning it can be retriggered while the output pulse is still high, which extends the pulse duration. 4. Q: What are some common applications for the SN74LS123N? A: Common applications include timers, pulse generation, frequency division, and event counters. 5. Q: What are some alternative ICs to SN74LS123N? A: Alternatives include the 74HC123, 74HCT123, MC14538, and LM555 timer IC.