CY74FCT240ATSOC

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Logic - Buffers, Drivers, Receivers, Transceivers

The CY74FCT240ATSOC is a high-speed, low-power Advanced Low Skew/Jitter (ALSJ) registered transceiver with clock-forwarding capabilities, designed for applications where tandem-matching delays are important. This device is part of Microchip’s ClockBuilder family of devices, which add clock-forwarding capability to the FCT240 advanced low-skew/jitter devices. This device includes two identical 8-bit registers, each with buffered inputs (FE, CP), output enable (OE), and outputs (Y0–Y7).

Application Field

• High speed low power clock and data distribution
• High speed on-chip clock and data distribution

Working Principle

The CY74FCT240ATSOC is a low-skew, low-jitter device that provides high-frequency clock and data distribution capability. It has two 8-bit registers with buffered inputs and outputs that are driven by a master clock. The clock is received and sent to both registers at the same time, which helps maintain the skew between the two. The outputs of the registers are delayed relative to their corresponding inputs by the master clock cycle, enabling data to be synchronized on multiple data paths. The two registers can also be combined to form a single 16-bit register, allowing data to be delayed and sent on a single path.

The CY74FCT240ATSOC also has a clock-forwarding feature that allows part of the master clock signal to be sent downstream without passing through the registers. This feature can be used to reduce data contention and provide a better overall clock distribution. It also reduces the registry loading of the clock, allowing for faster clock speeds.

In addition to its basic clock and data distribution functions, the CY74FCT240ATSOC also has fail-safe and power-up reset capabilities. The fail-safe feature ensures that all outputs will remain low if the device is not enabled or powered down. The power-up reset feature ensures that the device will come out of a power-down/low-power state with all outputs set to a low logic level.

Conclusion

The CY74FCT240ATSOC is an advanced low-power, low-skew, low-jitter registered transceiver with clock-forwarding capabilities. It has two 8-bit registers and can be combined to form a single 16-bit register. It has fail-safe and power-up reset capabilities, as well as clock-forwarding capability that allows part of the master clock to be sent downstream without passing through the registers. This device is well suited for high-speed low-power clock and data distribution applications as well as high-speed on-chip clock and data distribution.

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