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yangandjiao
Joined: 10 Apr 2008 Posts: 17
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Posted: Tue Jun 17, 2008 2:42 am Post subject: 74F164APC datasheet |
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General Description(74F164APC datasheet and pdf download)
The 74F164A is a high-speed 8-bit serial-in/parallel-out shift register. Serial data is entered through a 2-input AND gate synchronous with the LOW-to-HIGH transition of the clock. The device features an asynchronous Master Reset which clears the register, setting all outputs LOW independent of the clock. The 74F164A is a faster version of the 74F164.
Functional Description
The 74F164A is an edge-triggered 8-bit shift register with serial data entry and an output from each of the eight stages. Data is entered serially through one of two inputs (A or B); either of these inputs can be used as an active HIGH Enable for data entry through the other input. An unused input must be tied HIGH.Each LOW-to-HIGH transition on the Clock (CP) input shifts data one place to the right and enters into Q the logical AND of the two data inputs (A * B) that existed before the rising clock edge. A LOW level on the Master Reset (MR) input overrides all other inputs and clears the register asynchronously, forcing all Q outputs LOW. |
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vtech
Joined: 08 May 2006 Posts: 1264 Location: USA
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