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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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C 1C 2 and XT 1 for the oscillator; C 3 to limit noisy eventually present on power supply. The section signal detection and conversion to be measured is composed of the photocoupler IC 1transistor Q 4 and polarization resistors. On this page you experience the application of the PIC16FA as 4-digit frequency meter low frequency.

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 the output of the collector will present the signal with the same frequency but of form input square wave to be applied to pin 9 of microcontroller. At this point one realizes the detection section and the conversion of the signal to be measured. 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.


The image above shows the wiring diagram of the digital frequency with four 7-segment display.

(Datasheet) CNX62 pdf – High Voltage Optocoupler (1-page)

The experiment is carried out, as usual, on a breadboard where all necessary components are housed. The cathodes 4 are connected to the collector of transistor 4 in function of the switch.

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.

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Then you have the components of the oscillator, quartz and ceramic capacitors. 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 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 frequency meter can not measure signals to sine waves, square and saw tooth triangular with a resolution of 0.

The decimal point in the third displayalways connected by means of a current-limiting resistor, is connected directly to the positive supply. Once programmed and arranged on the base PIC proceed with the connections between it and the display section.


Given the characteristics of the photo-coupler, the input signal must not exceed 15V. 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.

(PDF) CNX62 Datasheet download

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.

The datasheet in PDF format, with the technical specifications of the PIC, can be downloaded by clicking the icon below.

To download the HEX file, needed to program the Microcontroller, click here. 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 datasheet in PDF format, with the technical specifications of the optocoupler, can be downloaded by clicking the icon below. Your use of the optocoupler electrically separates the signal to be measured by the microcontroller.

Given the range of measurement, from 16Hz to Hz, the frequency is tested for educational purposes only given the reduced scope. Completing the PIC circuit: