TLC556CDRG4

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TLC556CDRG4 is a high performance programmable timer and oscillator from Texas Instruments. It\'s a low-cost dual-operand monolithic timing circuit that features two independent retriggerable N-Counter/N-Divider with voltage-controlled oscillator. It is specifically designed for applications that require an accurate, low-cost, low-power programmable timing circuit.

This device was designed to replace multiple integrated circuit, digital logic and analog components with one inexpensive and requiring less board space. This leads to a smaller, cost-effective system with reduced power consumption. It\'s available in a very small Quad Flatpack (QFP) package, a space-saving form, perfect for applications with limited space.

Its application areas make it a suitable choice for industrial applications due to its low power, high accuracy, robustness and low-cost factor. TLC556CDRG4 can be used in a wide variety of applications like remote keyless entry systems, security systems, programmable delay within a servo mechanism, door & lock sensing applications, radio-controlled toys, bicycle lights, and many other synchronal circuit applications.

TLC556CDRG4 works on a single power supply which ranges from 5V to 15V, or dual supply from ±2V to ± 18V. It has a wide operating temperature range of -40°C to +85°C for proper operation. It features two independent, wide-range retriggerable N-counter/ N-divider with voltage-controlled oscillator (VCO). The maximum operating frequency is 10 MHz and has adjustable pulse width. It also offers an output pulse trains drive up to 40 mA. Its adjustable discharge current can be independently set to different levels and its enable/disable capability allows an external source to enable and disable the circuit independently.

The working principle of the TLC556CDRG4 is quite simple. It is composed of two independent counters: the N-Counter and the N-Divider. The N-Divider divides the frequency of the input clock by a user-defined divisor, while the N-Counter counts a certain number of pulses before generating a reset pulse. The output pulse is then generated with an adjustable pulse width by the N-Counter. The outputs can be either high or low with each independent counter having the capability to select an appropriate polarity. The adjustable discharge current can be set to different levels depending on the user’s preference.

The VCO is also adjustable in this device, offering wide-ranging frequencies adjustable up to 10 MHz. This makes the TLC556CDRG4 a suitable replacement of multiple integrated circuit, digital logic and analog components with one inexpensive, requiring less board space with reduced power consumption. The adjustable discharge current and enable/disable capability further adds to its versatility.

In conclusion, TLC556CDRG4 is a high performance programmable timer / oscillator that is insensitive to supply voltage fluctuations and provides accurate timing information regardless of power fluctuations. Its versatile application areas and low cost has made it a perfect choice for industrial, security, synchronal circuit applications, etc. It is perfect for space constrained applications as it comes in a compact QFP package. So, if you are looking for a low-cost, low-power and high performance programmable timer and oscillator, TLC556CDRG4 could be the perfect fit for your needs.

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