74HCT4538PW-Q100,1

Series:	Automotive, AEC-Q100, 74HCT
Packaging:	Tape & Reel (TR)
Part Status:	Active
Logic Type:	Monostable
Independent Circuits:	2
Schmitt Trigger Input:	No
Propagation Delay:	35ns
Current - Output High, Low:	4mA, 4mA
Voltage - Supply:	4.5V ~ 5.5V
Operating Temperature:	-40°C ~ 125°C
Mounting Type:	Surface Mount
Package / Case:	16-TSSOP (0.173", 4.40mm Width)
Supplier Device Package:	16-TSSOP
Base Part Number:	74HCT4538

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Logic - MultivibratorsMultivibrators are electronic circuits which have two amplifying elements, like transistors, vacuum tubes or op-amps, arranged so that the circuit can alternately switch between two states. 74HCT4538PW-Q100 is a logic multivibrator and is a low-power 8 Pin DIP package with dual retriggerable monostable multivibrators designed using CMOS technology.
The 74HCT4538PW-Q100, like other multivibrators, consists of two devices, U1 and U2, that alternate between two different states at regular intervals. Each device basically consists of an amplifier and an output stage, connected together through a feedback circuit. U1 has an inverting amplifier and a NOR based output stage, while U2 has a non-inverting amplifier and a NAND based output stage.
The two multivibrators in the 74HCT4538PW-Q100 are retriggerable, which means they will reset themselves to their original state after they have completed a cycle. The resetting is achieved using the enable signal from the CLK and RESET pins. When the enable signal is low, the monostable is set with U1 in the high state and U2 in the low state. When the enable signal goes high, the multivibrator is reset to the original state.
The 74HCT4538PW-Q100 is an ideal device for applications such as timing and pulse generation, clock/timer circuits, display multiplexing and memory address decoding. It is also used in many instrumentation and control systems, where its high speed and low power consumption are attributes of great value. The device has excellent switching characteristics, with low propagaion delays, low noise and a very wide power supply range.
In summary, the 74HCT4538PW-Q100 is a high-speed and low-power logic multivibrator with retriggerable monostable elements in an 8 Pin DIP package. It is used in many applications where a high switching speed, low power consumption level and precision timing are of upmost importance.

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