DATASHEET and Circuit Diagram

The following illustration schemes MM74HC165 parallel-in/serial-out 8-bit shift register pin assignment diagram. According to the datasheet, this device utilizes advanced silicon-gate CMOS technology.

This device able to be clocked through the inputs at each functioning gate (NOR, CLOCK, CLOCK INHIBIT, SHIFT/LOAD – as seen in the pin assignment schematic). All inputs are protected from damage due to static discharge by internal diode clamps to VCC and ground. The 74HC logic family can functionally worked as well as pin-out compatible with the standard 74LS logic family, according to the MM74HC165 datasheet.

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The schematic below diagrams Universal Remote IC8001 Pin Configuration. The IC8001 Universal Remote Integrated  Circuit is a fully integrated solution for a complete six-in-one "learning" universal remote control. It can be used to control up to six different entertainment devices such as TV, VCR, Satellite, and cable box.

The pinout schematic outlines infra red LED output, Visible LED, Power On Reset, Wakes IC8001, EEPROM Input/Output, 12 MHz Crystal Connection, Keypad Row Connections, Ground, Keypad Column Connections, Connect to +5 Volts, and +5 Volts Power Supply.

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Stepper motor is a brushless, synchronous electric motor that can divide a full rotation into a large number of steps (wikipedia.org). The following article provides all information about Stepper Motors Driver Design Application and Consideration including common problems and solutions.

What you will find in the depth of the article are sections such Motor Selection (Unipolar vs Bipolar), Drive Topology Selection, Driving a Unipolar Motor with the L298N or L6202/6203, Selecting Enable or Phase Chopping, Chopper Stability and Audio Noise, Driving a unipolar wound motor with a bipolar drive, Spikes on the sense resistor, and application circuit of L6506, L297, PBL3717A ICs.

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The schematic appears below designed Switch-Mode Power Supply (SMPS) circuit diagram. This SMPS circuit uses a push-pull design topology and used LM3524D as the controller for handling voltage regulation. SMPS is built as solution to low voltage battery problems for mobile, portable or emergency-power operation.

As a simple boost supply, SMPS is designed for 25A output current and to make up the difference between battery voltage and a preferred output voltage level at the cost of some additional current draw from the battery. A SMPS circuit can offer boosted power and may give longer times from a given battery.

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The diagram below shows an automotive IC specifically designed to provide cost effective solutions for relay-driving applications. It is Allegro A2557 protected quad driver with fault detection and sleep mode which can drive up to 300 mA output current per channel. We provide you the pinout and datasheet.

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The circuit shown below diagrams how to make a digital speedometer which can measure up to 99kmph with a resolution of 1kmph for i.e LML Vespa, Kinetic Honda or some other vehicles using the LM324.

This digital speedometer circuit uses IC LM324 which is wired as comparator. It forms an opaque disc mounted on the spindle attached to the front wheel of the vehicle, the disc has a fixed infrared LED on one side, and a phototransistor  in line with the IR LED on the other side.

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The mini2440’s power system utilizes a voltage step-down chip to generate three kinds of voltages: 3.3V, 1.8V and 1.25V which connected to an external 5V power supply. The following picture shows 1.25V Mini2440 Power Supply System Schematic Diagram.

This Mini2440 power supply system doesn’t have a full featured power management circuit, also it is not under software control.

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The parallel arrangement of LED backlights allows the control IC to utilize inexpensive low voltage CMOS processes as shown by the following circuit diagram which requires two to six white LEDs (WLEDs) in parallel. In many applications, LED backlights have been used in small and medium size portable LCD displays.

The AAT3169 IC is capable of driving six LEDs for a total of 180mA from a 2.7V to 5.5V input. It drives the LEDs with a constant current programmed by a low-side current sink (high side current source also are available). But it can result in unacceptable channel-to-channel mismatch in large format LCD displays where a greater number of LEDs are required across a larger viewing area.

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This is a miniature module of Narrow Band Transmitter and Receiver UHF Radio which is used to be applied in vehicle telemetry systems, wireless networking, wireless security system and panic attack facility. Both modules are ideal for use in portable battery powered wireless applications since its small size and low power requirements.

The circuit diagram shows how the FM narrow band transmitter and receiver modules can easily be integrated into a system to form a wireless link. In the datasheet you may find transmitter and receiver connection diagram, pin description, functional description, frequency channels, and the design and positioning of the antenna.

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The 556 timer is a dual version of the 555 single timer, they suitable for monostable or astable operation. It results in providing effective solutions for timing and pulse circuit applications.

The picture shows you with Tone Burst Generator Circuit Diagram using the 556 dual timer. It is connected as a one shot circuit. The pulse established by one shot turns on the oscillator allowing a burst of pulses to be generated.

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