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Chip-dat/74xx-dat/74HC595-dat/2024-09-30-18-08-46.png
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Chip-dat/74xx-dat/74HC595-dat/74HC595-dat.md
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3 | 3 | |
4 | 4 | - SIPO = 74HC595 = 0.035 - Nexperia(安世) 封装: SOIC-16 |
5 | 5 | |
6 | +- SNx4HC595 8-Bit Shift Registers With 3-State Output Registers |
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7 | + |
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8 | +## functions |
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9 | + |
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10 | +![](2024-09-30-18-08-46.png) |
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6 | 11 | |
7 | 12 | ## Drive the 7-segment led display |
8 | 13 | |
9 | -![](2024-02-28-14-42-59.png) |
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0 | +![](2024-02-28-14-42-59.png) |
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1 | + |
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2 | + |
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3 | +## run with RPI |
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4 | + |
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5 | +- library - https://pypi.org/project/pi74HC595/ |
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6 | + |
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7 | +![](2024-09-30-18-10-06.png) |
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8 | + |
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9 | +## pin |
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10 | + |
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11 | +- DS - data |
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12 | +- ST - latch |
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13 | +- SH - shifter register clock |
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14 | + |
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15 | +optional |
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16 | +- OE - output enable - default ground |
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17 | +- When the output-enable (OE) input is high, the outputs are in the high-impedance state. |
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18 | + |
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19 | + |
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20 | + |