ZHCSVZ9H June 1998 – April 2024 SN74AHC594
PRODMIX
请参考 PDF 数据表获取器件具体的封装图。
INPUTS | FUNCTION | ||||
---|---|---|---|---|---|
SER | SRCLK | SRCLR | RCLK | RCLR | |
X | X | L | X | X | Shift register is cleared. |
L | ↑ | H | X | X | First stage of shift register goes low. Other stages store the data of previous stage, respectively. |
H | ↑ | H | X | X | First stage of shift register goes high. Other stages store the data of previous stage, respectively. |
L | ↓ | H | X | X | Shift register state is not changed. |
X | X | X | X | L | Storage register is cleared. |
X | X | X | ↑ | H | Shift register data is stored in the storage register. |
X | X | X | ↓ | H | Storage register state is not changed. |