PI74VCX16244A

Series:	74VCX
Packaging:	Tube
Part Status:	Obsolete
Logic Type:	Buffer, Non-Inverting
Number of Elements:	4
Number of Bits per Element:	4
Input Type:	--
Output Type:	3-State
Current - Output High, Low:	24mA, 24mA
Voltage - Supply:	1.8 V ~ 3.6 V
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	48-TFSOP (0.240", 6.10mm Width)
Supplier Device Package:	48-TSSOP
Base Part Number:	74VCX16244

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Application Field and Working Principle of PI74VCX16244AThe PI74VCX16244A is a high-performance, low-power buffer/transceiver, designed for logic-level conversions, such as translating between two different logic families or between two logic voltage levels. According to its official datasheet, the PI74VCX16244A belongs to the category of logic buffers, drivers, receivers, transceivers. This device, released by Fairchild Semiconductor, is built using advanced CMOS logic devices,and consequently, it is characterized by a maximum power dissipation of 350 mW and nominal operating voltages up to 5.5 V. It is also 50% faster than most standard logic devices, meaning it is able to switch intime between two logic levels in less than 60 ns. This makes the PI74VCX16244A particularly suitable for modern high-speed applications.ThePI74VCX16244A is designed to be used for logic-level conversion, both in Input/Output bus communication systems and in DSP systems. This device is also extensively used in military, aerospace and automotive industries for itsreliability, thanks to its ability to switch at high speed and its wide operating temperature range (-55°C to 125°C).A careful examination of the PI74VCX16244A Data Sheet reveals that this buffer/transceiver consists of sixteen inverters, arranged in groups of four. Those inverters are made up oftwo stages. The first stage is the input driver with its two achievable logic levels, while the second stage is the output inverter with its two achievable logic levels as well.These two stages are connected in series to ensure high integrity levels and a maximum speed of operation. In fact, the logic signal is amplified at the input stage of the device, to achieve a maximumspeed in the transmission of logic signals at the output stage.One of the most representative features of this device is that its output can be read directly from the output buffer. This simplifies the wiring of the circuit, as the output signal can be monitored without any external device.In conclusion, the PI74VCX16244A can provide high-speed operations with its two signal levels, low power dissipation and direct monitoring of the output signal, making it an ideal choice for logic level conversions in bus communication systems, DSPs and military, aerospace and automotive industries.

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