CY74FCT2245ATQCTE4

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CY74FCT2245ATQCTE4 is a member of the Texas Instruments expanded family of high-speed CMOS Products and Solutions. This Logic-Buffers, Drivers, Receivers, Transceivers provides low cost and low power implementation for peripheral components. CY74FCT2245ATQCTE4 is a high-speed logic buffer used for inter-component interfacing within a system, and is often used in data communication applications. It is a dual 24-bit transceiver, with a series of receivers and drivers with integrated two-stage bus matching on both the transmitter side and receiver side and features integrated output slew rate limiting on both sides.

CY74FCT2245ATQCTE4\'s receivers are differential, three-state bus receivers with a 24-bit bus match offset. This device works from 1.5V to 3.3V and up to 3.6V for the receiver portions only. The bandwidth for the receivers is up to 800MHz, and the output thresholds for the drivers meet input thresholds for 3.3V CMOS for both TTL and CMOS logic devices.

The generic application of CY74FCT2245ATQCTE4 includes bus interface communication on PC boards, embedded switching networks, and communication busses between system components. The device is intended to be used as a bus transceiver - a 4-pin Intelligent Peripheral Interface (IPI) switch in the system. The device has a dedicated output enable control that enables the output drivers to be disabled independently of the input signals. This helps to minimize potential glitches by allowing the bus driver to drive the bus while leaving the receivers in a three-state output mode.

The CY74FCT2245ATQCTE4 transceiver has two independent receiver paths and two independent driver paths. The two receiver paths are synchronous and committed to the same logic-level threshold and have the same hysteresis. The hysteresis helps to prevent false latching in the case of input signals that have waveform oscillation or noise. The receiver outputs are in the high-impedance state when the Output Enable is in the high state.

The driver side of the CY74FCT2245ATQCTE4 has two independent full driver paths that support multiple bidirectional IO driving modes including single ended, active-high single-ended, active-low double-ended, and full bidirectional. The output current for each driver is adjustable. The driver has pulled down resistors that help to reduce ringing in the case of open-collector applications.

The output current of the driver side of the CY74FCT2245ATQCTE4 is adjustable. This helps to reduce power loss and optimize operational performance based on the requirements of the application. The output current can be adjusted to 6mA, 10mA, or 16mA by changing the external current source resistor. The driver also includes slew rate limiting to ensure precise voltage transitions and to decrease output reflections for both TTL and CMOS logic levels.

The CY74FCT2245ATQCTE4 is an excellent choice for boolean logic buffering in applications where space, power, or speed is critical. The device is designed to be compliant with industry norms, reducing risk of ESD damage and providing compatibility with other buses. Furthermore, the device features integrated slew-rate limiting, output current adjustment, and bus matching, making it extremely versatile.

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