ZHCSPY5A January 2004 – February 2022 CD74HC595
PRODUCTION DATA
請參考 PDF 數(shù)據(jù)表獲取器件具體的封裝圖。
Table 7-1 lists the functional modes of the CD74HC595.
| INPUTS | FUNCTION | ||||
|---|---|---|---|---|---|
| SER | SRCLK | SRCLR | RCLK | OE | |
| X | X | X | X | H | Outputs QA – QH are disabled |
| X | X | X | X | L | Outputs QA – QH are enabled. |
| X | X | L | X | X | Shift register is cleared. |
| L | ↑ | H | X | X | First stage of the shift register goes low. Other stages store the data of previous stage, respectively. |
| H | ↑ | H | X | X | First stage of the shift register goes high. Other stages store the data of previous stage, respectively. |
| X | X | H | ↑ | X | Shift-register data is stored in the storage register. |
| X | ↑ | H | ↑ | X | Data in shift register is stored in the storage register, the data is then shifted through. |