74LVT245BBT20-13

74LVT245BBT20-13 is a unit featuring a high-speed non-inverting 3-state buffer/driver which provides a high level of integration, excellent noise immunity and low on-board power dissipation.

This unit is a member of a family of low voltage logic devices, which have been designed to meet the requirements of low-power, high-performance applications in the logic and interface areas. The LVT245BBT20-13 provides an interface between a 3.3V CMOS/TTL subsystem and a 5V CMOS/TTL subsystem.

The 74LVT245BBT20-13 offers several features that makes it a great choice for logic and interface applications. These features include an ESD protection of 8KV, excellent noise immunity as well as low on-board power dissipation. It also meets the CMOS specification for low-power operation.

Application Field:

74LVT245BBT20-13 can be used in logic-level buffer/driver applications, in 3-state buffer/driver applications, to level shift between TTL and CMOS levels, and to level translations between 3.3V CMOS/TTL and 5V CMOS/TTL signals. It can also be used to convert between a bus output and individual output levels. The 74LVT245BBT20-13 is also suitable for fast switching and bidirectional data bus operation.

Work Principle:

The 74LVT245BBT20-13 consists of an array of sixteen non-inverting buffers/drivers with 3-state outputs. The outputs are controlled by two active-LOW Output Enable (OE1, OE2) inputs which, when tied LOW, enable the 3-state outputs for normal operation. When both Output Enable inputs are tied HIGH, all outputs will be in a high-impedance state. Logic 0 level at the Output Enable inputs will enable the outputs for normal operation.

The data for each output is provided by the Input (A-P) pins. The outputs are fed back to the Input pins to ensure an interlocked operation when selecting from different sources. By driving the Output Enable inputs LOW, the 3-state outputs will be in normal operation mode.

The 74LVT245BBT20-13 provides a balanced propagation and output enable time of 500ns/45ns (typt./max). This enables fast switching times between sources and makes it suitable for fast data bus applications.

In summary, the 74LVT245BBT20-13 provides an excellent choice for logic level buffer/driver applications and to level shift between TTL and CMOS levels. It also offers excellent noise immunity, and low on-board power dissipation that makes it ideal for designing with low-power, high-performance applications.