CD4009UBPW

Current - Output High, Low:	1.5mA, 24mA
Base Part Number:	4009
Package / Case:	16-TSSOP (0.173", 4.40mm Width)
Supplier Device Package:	16-TSSOP
Mounting Type:	Surface Mount
Operating Temperature:	-55°C ~ 125°C
Max Propagation Delay @ V, Max CL:	60ns @ 15V, 50pF
Logic Level - High:	4 V ~ 12.5 V
Logic Level - Low:	1 V ~ 2.5 V
Series:	4000B
Current - Quiescent (Max):	4µA
Voltage - Supply:	3 V ~ 18 V
Features:	--
Number of Inputs:	6
Number of Circuits:	6
Logic Type:	Inverter
Part Status:	Obsolete
Packaging:	Tube

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CD4009UBPW Application Field and Working Principle

The CD4009UBPW is a dual 4-input norm gate and inverter gate circuit combined in one 16-Pin DIP. It is used for digital logic operations and for applications such as switching, computation, counting, and memory. This circuit is commonly found in consumer electronics, military and aerospace, telecom, industrial automation, automotive and automotive aftermarket, personal and commercial medical, medical imaging, consumer products, and consumer-type computers. The CD4009UBPW features an open-collector output with either no-load Vdd or (Vdd – 2 volts) being able to drive the output device, making it suitable for applications requiring multiple output loads. It also has a low input current and a low output current for higher speeds. The CD4009UBPW\'s working principle is centered around the use of transistors and resistors within a four-input NOR gate. The NOR gate is connected to four inputs, and the output flows in one direction only until the combination of inputs is such that the output is brought to a lower voltage level. When the gate input is high, no current flows through the NOR gate and the output level is unchanged. However, when any of the inputs are low, their emitter-base junction is forward biased, resulting in current flowing through the input transistor, providing a level shift to make the output low. In this way, the combination of the four input resistors, four transistors, and the output device form a powerful NOR gate which is useful in both logic operations and memory functions. The CD4009UBPW can be used to create a variety of logic operations including Boolean gates, multiplexor/de-multiplexor, AND/OR/NOT functions, and more. Additionally, the circuit is widely used for memory functions, including address-decoding, enabling write-through conditions for memory circuits, and controlling the access of specific memory locations.The major benefit of the CD4009UBPW is that it is a single circuit package with two separately functioning logic gates which provides efficient logic switching in high voltage and high-power requirements. The use of this circuit for logic and memory operations results in significantly lower power consumption than what is found in single transistor logic ICs, making it beneficial in situations where power conservation is essential. In conclusion, the CD4009UBPW is a dual 4-input NOR gate and inverter gate circuit which is commonly found in a wide range of applications. Its working principle is centered around the use of transistors and resistors within a four-input NOR gate, allowing it to perform a variety of logic operations and memory functions. This circuit is beneficial in applications where power conservation is essential due to its low power consumption.

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