
Allicdata Part #: | MC14490DWGOS-ND |
Manufacturer Part#: |
MC14490DWG |
Price: | $ 0.00 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | ON Semiconductor |
Short Description: | IC ELIMINATOR BOUNCE HEX 16SOIC |
More Detail: | Contact Bounce Eliminator IC 16-SOIC |
DataSheet: | ![]() |
Quantity: | 2216 |
Series: | 4000 |
Packaging: | Tube |
Part Status: | Active |
Logic Type: | Contact Bounce Eliminator |
Supply Voltage: | 3 V ~ 18 V |
Number of Bits: | 6 |
Operating Temperature: | -55°C ~ 125°C |
Mounting Type: | Surface Mount |
Package / Case: | 16-SOIC (0.295", 7.50mm Width) |
Supplier Device Package: | 16-SOIC |
Base Part Number: | 4490 |
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The MC14490DWG is an 8-pin integrated circuit, which is primarily used as a binary up/down counter. The CI is a form of specialty logic, which was primarily developed to integrate the necessary functions and features of a potentiometer into the slim form factor of an integrated circuit. The MC14490DWG is best suited for applications where accurate counting is required and for the realization of thermocouple thermistor temperature control systems and analog-to-digital conversion systems. It is comprised of two flipping flip-flops, a third latch, a programmable counter and a constant-current source.
Application Field of MC14490DWG
The MC14490DWG is built for applications where counting, timing and temperature control is required. The logic offers some very useful features, including: the counter, the temperature sensor and a potentiometer. It can be used to control the input of external thermistors and thermocouples, to adjust current levels, monitor the performance of analog-to-digital conversion systems, and also to count inputs within a predetermined period. The MC14490DWG can even be used in car dashboards as a clock, timer or even a cruise control system where its counting utility can be incredibly useful.
Working Principle of MC14490DWG
The MC14490DWG has three chief operating modes: counter mode, temperature control mode, and off mode. Counter mode is the most common, and it involves the use of two flipping flip-flops, a latch, a programmable counter, and a constant-current source. These components interact to count and store the signals, and then provide an output that can be used for other applications. The temperature control mode uses the same components to detect temperature variations and then adjust accordingly. Off mode is more of a standby mode and means that no current is flowing through the device.
In counter mode, the device is configured to monitor input signals and count them over a specified period. The signals are fed into the device and then stored in the two flip-flops. The latch records the last count and then the counter increments or decrements the count based on the signals. The constant-current source is used to provide constant voltage or current to the device, and then the counter will continue counting until the preset time has elapsed.
Next, in the temperature control mode, the device is configured to detect temperature changes. It will detect a change in the thermosistor or thermocouple and then adjust the current source to provide either a steady voltage or current. This adjustment can be adjusted manually or through the programming of the device. The device will then accurately and precisely control the temperature to a desired level.
Finally, in off mode the device is completely shut off and no current is flowing. This is ideal for applications where the device needs to remain dormant, such as in a car dashboard clock. In this state, the device will keep a steady count until the appropriate input is provided and then the device will enter the counter or the temperature control mode.
Conclusion
The MC14490DWG is an 8-pin integrated circuit, which is primarily used as a binary up/down counter. It is a form of specialty logic, which was primarily developed to allow for the integration of numerous functions and features. The main application field for the MC14490DWG are in applications where counting, timing and temperature control is necessary. With regards to its operating modes, the device has three: counter mode, temperature control mode and off mode. These modes enable users of the device to count signals over a predetermined period, detect temperature variations and finally, to turn the device off if necessary.
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