74VHC393FT

Series:	Automotive, AEC-Q100, 74VHC
Packaging:	Tape & Reel (TR)
Part Status:	Active
Logic Type:	Binary Counter
Direction:	Up
Number of Elements:	2
Number of Bits per Element:	4
Reset:	Asynchronous
Timing:	--
Count Rate:	115MHz
Trigger Type:	Negative Edge
Voltage - Supply:	2V ~ 5.5V
Operating Temperature:	-40°C ~ 125°C
Mounting Type:	Surface Mount
Package / Case:	14-TSSOP (0.173", 4.40mm Width)
Supplier Device Package:	14-TSSOPB

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The 74VHC393FT is an advanced dual 4-bit counter chip designed for any system that requires counting. It is suitable for a wide variety of applications, such as counting pulses, timers, resetting systems, and other digital-logic-related tasks. The chip has two independent 4-bit counters, or a single 8-bit counter with complementary outputs.The 74VHC393FT includes a set of useful features which make it suitable for numerous applications requiring precise counting or timing. The internal logic configuration is advantageously organized to enable a wide range of operations with the chip.The key features of the 74VHC393FT include:

• Dual 4-bit counter, 4-stage ripple counter configuration.
• Input edge detection and reset/clear capability.
• More advanced timing configuration with programmable interval timers.
• High-impedance inputs to reduce power consumption.

For an efficient count operation, the chip requires a single power supply and low power consumption. The input and output signals for the counter are TTL compatible, with pullup and pulldown setups for accurate results.The 74VHC393FT is thus well-suited for use in applications demanding precise counting or measuring of intervals within a given cycle. It is especially useful in embedded systems requiring precise counters or dividers, and can be used as a synthesizer or in some display control applications.The working principle of the 74VHC393FT is based on a simple binary counter. The counter is connected to a pair of inputs, one of which is called the Up/Down (U/D) input and the other called the Clock (CLK) input. The U/D input is used to select the counting direction (Up or Down) while the CLK input provides the clock signal that initiates the counting process.When the input signal of the U/D input is a high logic level, the counter will start counting from 0 and increment its values on the rising edge of each clock pulse. Similarly, when the U/D input is a low logic level, it will start counting from its maximum value and decrement its values on the falling edge of each clock pulse.At each positive edge of the CLK signal, the counter module inside the 74VHC393FT will achieve a certain increment/decrement of the value stored in the counter. The output signal, also referred to as the Count/Reset (C/R) signal, will then be updated to reflect the current value of the count stored in the chip\'s internal counter module.The 74VHC393FT is thus ideal for counting operations, where both up-down counting operations could sometimes be required. It also has a set of useful features for more advanced timing applications, such as programmable interval timers and a comprehensive reset/clear control.To conclude, the 74VHC393FT is an excellent chip for a wide range of applications requiring counting operations and precise timing control, such as embedded systems, automotive systems, security systems, and other industrial electronics. Its combination of advanced features, robust logic configuration and low power consumption make it an ideal choice for any designer needing an extremely efficient counter module with superior precision and flexibility.

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