These devices SNJ54HC377 are positive-edge-triggered octal D-type Flip-Flops with an enable input. The HC377 devices are similar to the HC273 devices, but feature a latched clock-enable (CLKEN) input instead of a common clear. Information at the data (D) inputs meeting the setup time requirements is transferred to the Q outputs on the positive-going edge of the Clock (CLK) pulse, if CLKEN 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 CLK is at either the high or low level, the D input has no effect at the output. These devices are designed to prevent false clocking by transitions at CLKEN. By Texas Instruments
Part Manufacturer Description Datasheet Samples
SNJ54HC377J Texas Instruments Octal, Hex, And Quad D-type Flip-Flops With Clock Enable 20-CDIP -55 to 125
SNJ54HC377FK Texas Instruments Octal, Hex, And Quad D-type Flip-Flops With Clock Enable 20-LCCC -55 to 125
SNJ54HC377 's PackagesSNJ54HC377 's pdf datasheet

SNJ54HC377 Pinout, Pinouts
SNJ54HC377 pinout,Pin out
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