54165中文資料美國國家半導(dǎo)體數(shù)據(jù)手冊PDF規(guī)格書

General Description

The ’165 is an 8-bit parallel load or serial-in register with

complementary outputs available from the last stage. Parallel inputting occurs asynchronously when the Parallel Load

(PL) input is LOW. With PL HIGH, serial shifting occurs on

the rising edge of the clock; new data enters via the Serial

Data (DS) input. The 2-input OR clock can be used to combine two independent clock sources, or one input can act as

an active LOW clock enable.