SN74LS629NSRG4

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The SN74LS629NSRG4 is a versatile programmable timer and oscillator created by Texas Instruments. It offers users the ability to customize their timing circuit or oscillator, within certain limits and parameters. The SN74LS629NSRG4 can be used to address a variety of applications, and as such is an important part of many digital systems. This paper will discuss the application field and working principle of the SN74LS629NSRG4.

Applications

The SN74LS629NSRG4 integrates high functionality, ease of use, and reasonable price into a single C-MOS device. This makes it suitable for many applications and projects, such as:

• Automation control, including subsystems for measuring, controlling, and responding to events in factories and workplaces.
• Timing and sequencing applications, such as those used in data processing, assembly and multimedia systems.
• Test equipment and monitoring systems, where rapid changes in system parameters must be tracked.
• Digital data transmission, where synchronization of the transmission is necessary for reliable transmission.
• Programmable logic controllers, where the programmable nature of the SN74LS629NSRG4 makes it invaluable.

The versatility of the SN74LS629NSRG4 means that it can be used in many other applications. It is a popular choice among developers and engineers looking for a reliable timer or oscillator.

Working principle

The SN74LS629NSRG4 consists of an 8-bit digital counter, multiplexers, a 16-bit latch, latched comparator and output flip-flop. The design and operation of the SN74LS629NSRG4 can be broken down into three separate sections. First, the oscillator section allows for frequency generation up to 80MHz, with customisable output frequency and duty cycle. Second, the latch section provides for a single clock cycle latch to hold the logic states for the duration of the cycle. Lastly, the counter section allows for up to 8 inputs to be counted for each cycle.

In operation, the oscillator portion of the SN74LS629NSRG4 produces a base frequency determined by selection of a pair of external capacitor and resistor via the oscillator pins. This oscillator frequency is then used to drive the counter/latch section, which in turn steps through its 8 programmed latch/compare instructions, culminating into a count at the flip-flop portion of the device. The output of the count is then amplified and can be used to trigger an external circuit.

The SN74LS629NSRG4 is also user-programmable to allow for customisation to specific applications. This means that the oscillator frequency, duty cycle and output frequency settings can be adjusted as required.

Conclusion

The SN74LS629NSRG4 is a versatile programmable timer and oscillator that can be used in a variety of applications. Its 8-bit digital counter, multiplexers, 16-bit latch, latched comparator and output flip-flop sections make it ideal for automations, timing and sequencing applications, test equipment, digital data transmission and programmable logic controllers. It is also user-programmable to allow for custom settings. For these reasons, the SN74LS629NSRG4 is a popular choice among developers and engineers.

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