SN74S280NSRE4

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The SN74S280NSRE4 is a high-speed, very low-power, low-voltage, single-supply parity generator and checker designed for the highest performance possible in both the consumer and the industrial market. It is ideal for application in automotive and consumer applications, including professional consumer audio, set-top boxes, vehicle audio systems, and digital consumer appliances. This device contains registers that are twice as fast as the prior generations and use as low as one third the power.

Parity generators and checkers are devices that check for inconsistencies between data elements transmitted. Parity works by counting the number of bits in each transmitted message, including any check or parity bits, and ensuring that these numbers are always the same. If a difference is detected, an alert is issued, often by means of an error message, so that the problem can be corrected. The SN74S280NSRE4 is a parity generator and checker whose main feature is the ability to detect errors in data streams.

The SN74S280NSRE4 is a synchronizer that works together with a parity generator and checker. It first copies the data into the input buffer which is then shifted into the register bank. This is done while a parity bit is generated. The parity bit is then added to the output data stream. The asynchronous 3-state input buffer allows the synchronization of the input data with the system clock. The data is then compared with the parity bit using the parity generator and checker.

The SN74S280NSRE4 operates over a single supply voltage that ranges from 3.0V to 5.5V. This device also has a power-down pin that can reduce the power consumption to 10µA. It includes a input clock enable signal, so that the device can be placed in a power-down mode when not in use, saving additional power. The device also includes a parity output pin which can alert the user to the event of an error.

Upon receiving a valid clock signal, the SN74S280NSRE4 compares the immediate data bits, assuming a parity check bit is present. If the data and the parity bit are equal, the output of the parity generator is 1; otherwise, it is 0. Setting this output to 1 indicates that the data is valid and correct. The internal flip-flops track the data, giving an indication of data validity and allowing parity checking. This allows the device to detect errors, such as those caused by single bit or two bit errors, as well as some multi-bit errors.

The SN74S280NSRE4 is a versatile and cost-effective parity generator and checker that allows data verification and reliability assurance in consumer and industrial applications. Its high-speed, low-power consumption, and low-voltage design provide reliable data conformity and verification. Its reliable performance and multi-funcationality makes it an ideal device for a wide range of consumer and industrial applications.

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