datasheets 74ls322 free download

File name 74ls322.pdf

SN54/74LS322A 8-BIT SHIFT REGISTERS WITH SIGN EXTEND These 8-bit shift registers have multiplexed input/output data ports to accomplish full 8-bit data handling in a single 20-pin package. Serial data may enter the shift-right register through either D0 or D1 inputs as selected by the 8-BIT SHIFT REGISTERS data select pin. A serial output is also provided. Synchronous parallel loading WITH SIGN EXTEND is achieved by taking the register enable and the S / P inputs low. This places the three-state input / output ports in the data input mode. Data is entered on LOW POWER SCHOTTKY the low-to-high clock transition. The data extend function repeats the sign in the QA flip-flop during shifting. An overriding clear input clears the internal registers when taken low whether the outputs are enabled or off. The output enable does not affect synchronous operation of the register.