74HC595 - 8-Bit Serial-In, Parallel-Out Shift Register
TestShiftOut
TestBitBangSlow
TestBitBangFast
TestSPI
Timing
| Program | 1 000 000 updates | Updates/sec |
|---|---|---|
| TestShiftOut | 138.013 |
7 246 |
| TestBitBangSlow | 122.482 |
8 164 |
| TestBitBangFast | 12.637 |
79 133 |
| TestSPI | 2.702 |
370 096 |