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AT89C4051-24S
24MHz, 4kB Flash, 128B SRAM, SOIC-20
Schematic Symbol
Pin Configuration (20 pins)
| Pin | Name | Type |
|---|---|---|
| 1 | RST/VPP | input |
| 2 | P3.0 | bidirectional |
| 3 | P3.1 | bidirectional |
| 4 | XTAL2 | output |
| 5 | XTAL1 | input |
| 6 | P3.2 | bidirectional |
| 7 | P3.3 | bidirectional |
| 8 | P3.4 | bidirectional |
| 9 | P3.5 | bidirectional |
| 10 | GND | power_in |
| 11 | P3.7 | bidirectional |
| 12 | P1.0 | bidirectional |
| 13 | P1.1 | bidirectional |
| 14 | P1.2 | bidirectional |
| 15 | P1.3 | bidirectional |
| 16 | P1.4 | bidirectional |
| 17 | P1.5 | bidirectional |
| 18 | P1.6 | bidirectional |
| 19 | P1.7 | bidirectional |
| 20 | VCC | power_in |
Footprint
ConfirmedPackage_SO/SOIC-20W_7.5x12.8mm_P1.27mm
Pad Layout
Pads (20)
| Number | Type |
|---|---|
| 1 | smd |
| 2 | smd |
| 3 | smd |
| 4 | smd |
| 5 | smd |
| 6 | smd |
| 7 | smd |
| 8 | smd |
| 9 | smd |
| 10 | smd |
| 11 | smd |
| 12 | smd |
| 13 | smd |
| 14 | smd |
| 15 | smd |
| 16 | smd |
| 17 | smd |
| 18 | smd |
| 19 | smd |
| 20 | smd |