SN74CBTH16211DGGR

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The SN74CBTH16211DGGR refers to a high-speed, 16-bit bidirectional dual-supply bus transceiver oriented for use in low voltage/low power applications. As a logic-signal-switch, multiplexer, decoder type component, it can be used to multiplex data from bus transceivers or from several bus transceiver enable signals.

The component can be used in applications requiring high speed, such as simultaneous data transferring, data multiplexing, data sampling, and data conversion. It can operate with one 3.3V and one 1.8V power supply. The component is also offered with an extended temperature range (from – 40°C to +85°C).

The component works with a maximum data rate of 160 Mbps. It can support data bus widths of 8, 12, and 16 bits, with properties such as low crosstalk and propagation delay. All inputs feature over-voltage protection, latch-off protection and bus hold circuitry.

The SN74CBTH16211DGGR comprises 16 bidirectional data lines, D0–D15. It provides two output enable inputs (G0 and G1) controlling two separate sets of eight transceiver channels in each direction and two active-low, flow-through enables (G2A and G2B). The G0 and G1 inputs, when low, enable all 16 data lines for bidirectional data flow.

This component is particularly useful in wireless and wired applications where data integrity and speed are essential, such as charging control and power management. Its high speed and low power requirements make it suitable for battery operated devices and other energy efficient applications.

The SN74CBTH16211DGGR works by allowing independent control of two sets of bidirectional data line drivers and receivers. In the transmit direction, drivers can be enabled and disabled separately in terms of each set of eight channels. The drivers feature high-current, low-impedance outputs and are capable of sourcing or sinking more than 30mA. The receivers feature fail-safe inputs, even when the inputs are open or floating.

The component also features a programmable 3.3V-tolerant input threshold. The receiver can be operated in either standard (TTL) or Schmitt trigger mode. In Schmitt trigger mode, all receiver inputs have a hysteresis to eliminate noise before propagating any valid signals on the data lines.

In addition, the SN74CBTH16211DGGR incorporates a bus-hold circuitry that maintains the outputs in a static low logic level condition when the inputs are in a high-impedance state. This helps ensure data transfer integrity in a noisy environment, such as in the presence of ground paths being switched by multiple devices.

In summary, the SN74CBTH16211DGGR is a high-speed, low-power, 16-bit bidirectional dual-supply bus transceiver, suitable for applications from data transfers to charging control and power management. With its extended temperature range, fail-safe inputs, programmable thresholds, and bus-hold circuitry, it provides robust, reliable, and fast performance for high-speed data and signal switching in a variety of environments.

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