Texas Instruments SN74LS378

these monolithic positive-edge-triggered flip-flops utilize ttl circuitry to implement d-type flip-flop logic with an enable input. the ls377 ls378 and ls379 devices are similar to ls273 ls174 and ls175 respectively but feature a common enable instead of a common clear. information at the d inputs meeting the setup time requirements is transferred to the q outputs on the positive-going edge of the clock pulse if the enable input g\ is low. 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. the circuits are designed to prevent false clocking by transitions at the g\ input. view all in datasheet