SN74ALVCH162344VR

Series:	74ALVCH
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Logic Type:	Address Driver
Number of Elements:	4
Number of Bits per Element:	2:8
Input Type:	--
Output Type:	3-State
Current - Output High, Low:	12mA, 12mA
Voltage - Supply:	1.65 V ~ 3.6 V
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	56-TFSOP (0.173", 4.40mm Width)
Supplier Device Package:	56-TVSOP
Base Part Number:	74ALVCH162344

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Introduction

The SN74ALVCH162344VR is a 16-bit CMOS buffer/driver-receiver and transceiver designed for high-speed, low-power applications. It has a very different design and function than its predecessors and therefore, requires a different type of analysis and applications. This paper will discuss the various applications in which it may be employed, and its working principle.

Applications

The SN74ALVCH162344VR is primarily employed in logic and data buses, in which high-speed and low-power are key factors. This logic and data bus includes popular protocols such as the Time Division Multiplex (TDM), Gigabit Ethernet (GbE), and the Serial Attached SCSI (SAS) protocols. Furthermore, the SN74ALVCH162344VR can be utilized in Data connectivity interfaces such as system management bus (SMBus/I2C). In today’s computing, the speed and bandwidth of digital devices are becoming increasingly important and therefore, the SN74ALVCH162344VR has become an attractive option for design engineers. Furthermore, for the same reason, this type of buffer/driver-receiver and transceiver has found application in high-speed data transmission, communications networks, and multiplexers.

Design

The SN74ALVCH162344VR is designed to ensure high-speed and low-power operation. The device is composed of four channel independent 8-bit buffers, with two channel independent 8-bit receiver/drivers, transceivers, and input enable (IE) pins. The transceivers allow data to be sent and received on the same channel simultaneously.The receiver/drivers can convert multiple supply voltages ranging from 1.2V to 3.3V and the transceivers can be configured to operate in half-duplex or full-duplex mode. Furthermore, each channel can be configured independently with select pins and programmable thresholds.

Working Principle

The SN74ALVCH162344VR operates by taking input data and transmitting it through an output port. The logic terminals act as an interface between the input/output and the internal logic levels.The logic levels are determined by the logic threshold voltage [VOH] and logic 0 voltage [VOL]. Generally, the logic threshold voltage is set higher than the logic 0 voltage, so that logic 0s are recognized as 0 and logic 1s are recognized as 1.When data is sent from the input terminals to the output terminals, the SN74ALVCH162344VR controls the logic levels accordingly and sends the data to the output. The transceiver-mode allows the output port to receive data from the input port simultaneously. The logic threshold voltage and logic 0 voltage can be independently set for each input/output port making it possible to send/receive data at different levels.

Conclusion

In conclusion, the SN74ALVCH162344VR is a 16-bit CMOS buffer/driver-receiver and transceiver designed for high-speed, low-power applications. It can be utilized in system management bus (SMBus/I2C), Gigabit Ethernet (GbE), Serial Attached SCSI (SAS) protocols and other data connectivity interfaces. It is composed of four channel independent 8-bit buffers, two channel independent 8-bit receiver/drivers, transceivers and input enable (IE) pins. The logic levels are determined by the logic threshold voltage [VOH] and logic 0 voltage [VOL] and the logic threshold voltage is set higher than the logic 0 voltage.

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