74LS164.pdf 54LS164 DM54LS164 DM74LS164 8-Bit Serial In Parallel Out Shift Registers June 1989 54LS164 DM54LS164 DM74LS164 8-Bit Serial In Parallel Out Shift Registers General Description Features These 8-bit shift registers feature gated serial inputs and an Y Gated (enable disable) serial inputs asynchronous clear A low logic level at either input inhibits Y Fully buffered clock and serial inputs entry of the new data and resets t……