74LVTH16245BDL,112

Series:	74LVTH
Packaging:	Tube
Part Status:	Active
Logic Type:	Transceiver, Non-Inverting
Number of Elements:	2
Number of Bits per Element:	8
Input Type:	--
Output Type:	3-State
Current - Output High, Low:	32mA, 64mA
Voltage - Supply:	2.7 V ~ 3.6 V
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	48-BSSOP (0.295", 7.50mm Width)
Supplier Device Package:	48-SSOP
Base Part Number:	74LVTH16245

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74LVTH16245BDL, 112 application field and working principle

As one type of Logic - Buffers, Receivers, Transceivers, Drivers, the 74LVTH16245BDL are advanced low-voltage high-speed octal transceivers/bus-transceivers with 3-state outputs. It is designed for asynchronous two-way communications between data buses.This device contains a built-in set of bi-directional buffers of 8 bits per buffer. The 3- state outputs enable the external bus-driving circuits to be placed in a high-impedance state.The 74LVTH16245BDL features include low input and output leakage current and good noise margin. The power supply includes ±4.5V to ±5.5V range and can function with a supply voltage as low as ±3V but the device will not meet TTL voltage level specifications.

Features:

• Wide supply range ±3V to ±5.5V
• Input and output enabled logic levels from VCC = 0 to 5.5V
• Low output skew between octal buffer enables
• Outputs are configured in the high impedance state when the chip enable (CE) is active
• Powerdown high-impedance inputs
• Connection Diagram compatible with 44-pin ABDFP-44 package
• Output skew of 7.5 ns maximum Skew between any pair of outputs
• Low input and output leakage current
• Good noise margin

Applications:

The 74LVTH16245BDL is well suited for many applications, such as interfacing between memory and I/O devices. It is often used for low-voltage memory and low-voltage I/O interfacing and it is commonly used for systems such as programmable logic controllers (MC68HC000) and other control systems.The 74LVTH16245BDL devices are also used in high speed system interfaces where data rates can reach over 100 MHz. This enables the devices to be used for high speed networking, digital telecommunications, and data communications applications.

Working Principle:

The 74LVTH16245BDL devices are composed of 8 bits of non-inverting transceivers and are designed to operate with output-enable (OE) logic levels as low as 1.5V. When active, they provide half-duplex communication between two bidirectional buses.When the OE is inactive, the internal transceiver is disabled and the application data is placed in a high-impedance state. When the OE is active, the device will act as a transceiver and provide a bidirectional communication.When sending data, the data is transferred from the source bus to the destination bus when the transmit enable (TE) is active, while data is sent in the opposite direction when the receive enable (RE) is active. Data transmission is accomplished by simply sending the data signals on the two buses and using the OE, RE and TE signals for data flow control.When the OE is inactive, all transceiver outputs are placed in high-impedance, isolating both the source and destination buses. This allows for the appearance of a complete open circuit between the two buses, providing further isolation and protection of the physical layer.To ensure reliable data transfer, it is important to pay attention to the timing performances and voltage levels. The 74LVTH16245BDL has a high speed of up to 100 MHz and can also operate over a wide range of supply voltages. It also has a low output skew time and a good noise margin.In summary, the 74LVTH16245BDL is an advanced low-voltage high-speed octal transceiver device and is suitable for many applications, such as interfacing between memory and I/O devices. The wide supply voltage range and the fast timing performance make it an ideal choice for high-speed communication between two buses.

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