DM74ALS273 Octal D-Type Edge-Triggered Flip-Flop with Clear April 1984 Revised February 2000 DM74ALS273 Octal D-Type Edge-Triggered Flip-Flop with Clear General Description These monolithic, positive-edge-triggered flip-flops utilize TTL circuitry to implement D-type flip-flop logic with a direct clear input.
Information at the D inputs meeting the setup requirements is transferred to the Q outputs on the positive-going edge of the clock pulse.
Clock triggering occurs at a particular voltage level and is not directly related to the transition time of the positive-going pulse.
When the clock input is at either the HIGH or LOW level, the D input signal has no effect at the output.
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