CNX62 Philips Semiconductors datasheet pdf data sheet FREE Datasheets (data sheet) search for integrated circuits (ic), semiconductors and other electronic. This datasheet contains preliminary data, and supplementary data will be published at a later date. Fairchild Semiconductor reserves the right to make changes. Request PHILIPS [NXP Semiconductors] CNX HIGH-VOLTAGE OPTOCOUPLER online from Elcodis, view and download CNX62 pdf datasheet, In Stock.

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The datasheet in PDF format, with the technical specifications of the optocoupler, can be downloaded by clicking the icon below. Given the characteristics of the photo-coupler, the input signal must not exceed 15V. The displays are common cathode type, the 7 segments are connected in parallel and the 7 common lines are connected by means of a resistor to limit the absorption at 7 RBX ports of the PIC, as shown in the wiring diagram.

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Digital Frequencymeter by PIC 16FA

Finally, the capacitor C 1 has the purpose of eliminating any noise present on power supply, while the resistor R 8 limit the current absorbed by the decimal point placed on the third display.

On this page you experience the application of the PIC16FA as 4-digit frequency meter low frequency. Completing the PIC circuit: At this point one realizes the detection section and the conversion of the signal to be measured. The cathodes 4 are connected to the collector of transistor 4 in function of the switch.


As Always, it shown the pinout of the components where you can see the layout of the pins with the initials of its function to facilitate the construction. The decimal point in the third displayalways connected by means of a datssheet resistor, is connected directly to the positive supply. Your use of the optocoupler electrically separates the signal to be measured by the microcontroller.

CNX62 Datasheet PDF

The measurement is displayed on 4 7-segment display of the type common cathode negative in common to all 8 LED, 7 segments and decimal point. The 4 transistors are activated by 4 RA of the 8 ports of the CIP by a resistor connected to the base of the same. The displays are enabled one at a time with the multiplexer system by 4 transistors in switch function. Fixed the photocoupler is connected to the same transistor that dwtasheet output of the collector will present the signal with the same frequency but of form input square wave to be applied to pin datasueet of microcontroller.

The datasheet in PDF format, with the technical specifications of the PIC, can be downloaded by clicking the icon below. The experiment is carried out, as usual, on a breadboard where all necessary components are housed. Given the range of measurement, from 16Hz to Hz, the frequency is tested for educational purposes only given the reduced scope.


Then you have the components of the oscillator, quartz and ceramic capacitors. C 1C 2 and XT 1 for the oscillator; C 3 to limit noisy eventually present on power supply. Before you place the microcontroller on the board it is necessary to program the same with the HEX file, Arrange them later in the page, downloadable by the required link. Once programmed and arranged on the base PIC proceed with the connections between it and the display section. It is part of the display area by arranging of the display 4, connecting the seven segments a, b, c, d, e, f, g in parallel between them that attrverso 7 resistors will then be connected to the ports 7 of the Microcontroller PIC16FA.

The image above shows the wiring diagram of the digital frequency with four 7-segment display. The frequency meter can not measure signals to sine waves, square and saw tooth triangular with a resolution of 0.

To download the HEX file, needed to program the Microcontroller, click here. The section signal detection and conversion to be measured is composed of the photocoupler IC 1transistor Q 4 and polarization resistors.