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Chip-dat/74xx-dat/74HC595-dat/74HC595-dat.md
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- SIPO = 74HC595 = 0.035 - Nexperia(安世) 封装: SOIC-16
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+- SNx4HC595 8-Bit Shift Registers With 3-State Output Registers
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+
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+## functions
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+
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+![](2024-09-30-18-08-46.png)
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## Drive the 7-segment led display
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-![](2024-02-28-14-42-59.png)
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+![](2024-02-28-14-42-59.png)
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+
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+## run with RPI
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+
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+- library - https://pypi.org/project/pi74HC595/
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+
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+![](2024-09-30-18-10-06.png)
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+
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+## pin
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+
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+- DS - data
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+- ST - latch
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+- SH - shifter register clock
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+
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+optional
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+- OE - output enable - default ground
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+- When the output-enable (OE) input is high, the outputs are in the high-impedance state.
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+