SN74LVC828ADGVR

The SN74LVC828ADGVR is a low-voltage Performance LVC (i.e., TTL compatible) logic device that belongs to the Logic - Buffers, Drivers, Receivers, Transceivers category. This general-purpose circuit, developed by Texas Instruments, acts as a single 4-bit, dual 4-bit, or octal bus transceiver. It can be used as a bidirectional bus driver, bus inverter, bus receiver, or bus receiver/inverter. The LVC828ADGVR features a low-voltage power-on detection circuitry that holds off the output until the power supply voltage exceeds the 3.6 V minimum and the supply is considered ready for logic operations.

The SN74LVC828ADGVR can be used for a variety of applications, from data exchange between different buses to communications between integrated circuits. Every channel of the SN74LVC828ADGVR has separate, internally generated enables that are controlled by a common input. Enabling the common input will buffer or transfer the information presented at the inputs onto the outputs.

When it comes to the operation of the SN74LVC828ADGVR, the logic levels of the enable inputs determine the direction of the data flow through the transceiver channels. The enable inputs can be used in either active high (E\$>\$VCC(max)) or active low (E\$<\$VCC (min)) mode. If the enable input is in the active high state, data is transferred from the A bus to the B bus. Conversely, if the enable input is in the active low state, data is transferred from the B bus to the A bus.

The SN74LVC828ADGVR features three-state outputs on both A, B bus. This allows for convenient bus-oriented applications such as multiplexers, demultiplexers, and data buses. The three-state outputs are controlled externally through the output enable (OE\$>\$VCC(max)) input. When OE is high, the output transistors are activated and the transceiver outputs are outwardly limited to either VCC or GND, depending upon the logic level at the individual transceiver inputs.

The SN74LVC828ADGVR also has a bus hold feature on both A, B buses. It is enabled by holding the EN input high and placing an appropriate logic level onto the bus. As long as EN remains high, the bus will be held at its current level even if the data source is removed.

The SN74LVC828ADGVR can be used in wide range of temperature operating ranges, from -55°C to +125°C. Moreover, the SN74LVC828ADGVR is available in the 14-pin TSSOP package, allowing for small circuit boards and providing superior electrical and thermal performance as compared to other technologies.

In conclusion, the SN74LVC828ADGVR is a versatile low-voltage transceiver suitable for implementing several data-transfer and multiplexing functions in a wide range of environments. It has a low-voltage power-on detection circuitry and a bus hold feature that allow it to be used for both power-sensitive and power-independent applications. Moreover, its low-voltage operation and wide temperature range of -55°C to +125°C allow for reliable operation in a variety of conditions.