74VHC245MTC

Series:	74VHC
Packaging:	Tube
Part Status:	Active
Logic Type:	Transceiver, Non-Inverting
Number of Elements:	1
Number of Bits per Element:	8
Input Type:	--
Output Type:	3-State
Current - Output High, Low:	8mA, 8mA
Voltage - Supply:	2 V ~ 5.5 V
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	20-TSSOP (0.173", 4.40mm Width)
Supplier Device Package:	20-TSSOP
Base Part Number:	74VHC245

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Introduction

The 74VHC245MTC is a high performance low voltage Bi-directional Transceiver Buffer with low current consumption. It is most commonly used to drive and buffer high speed microprocessors and logic systems. It is also known as a “Triple Transceiver”.

Application Field

The 74VHC245MTC is widely used for high speed applications such as in microprocessors, memory interfaces, audio/video systems, etc. The transceiver can also be used to extend the data bus from one device to another. The transceiver provides a cost-effective solution for increasing the data bus speeds, since the transceiver can be used to extend the data bus signals beyond their normal range. This makes the 74VHC245MTC ideal for high speed data transfer applications.

Working Principle

The 74VHC245MTC consists of three separate transceiver circuits controlled by a single enable control pin. Each transceiver has two inputs and two outputs. The three transceivers can be independently configured and multiplexed. The first two transceivers (A and B), are balanced drive/receive circuits with full-buffering. The third transceiver (C) is a bus transceiver with an open-drain output.When the enable pin is set to a high logic level, all three transceivers are enabled and operate normally. The A and B transceivers can be used to transfer data in both directions, and the C transceiver can be used to extend the data bus from one device to another.When the enable pin is set to a low logic level, all three transceivers are disabled and the outputs are tri-stated. In this mode, the A and B transceivers are used to isolate the data bus from the rest of the system and the C transceiver is used to disconnect the extended data bus from the rest of the system.

Conclusion

The 74VHC245MTC is a high performance Bi-directional Transceiver Buffer with low current consumption and low voltage operation. It can be used to increase data transfer speeds, as well as to isolate and extend the data bus from one device to another.

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