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C8051F321-GM
16 KB ISP FLASH MCU Family with Full Speed USB, 2304 bytes internal RAM, 21 port I/O, 10-bit ADC, built-in temperature sensor, fully compatible with MCS-51 instruction set, QFN-28
Schematic Symbol
Pin Configuration (29 pins)
| Pin | Name | Type |
|---|---|---|
| 1 | P0.1 | bidirectional |
| 2 | P0.0 | bidirectional |
| 3 | GND | power_in |
| 4 | D+ | bidirectional |
| 5 | D- | bidirectional |
| 6 | VDD | power_in |
| 7 | REGIN | power_in |
| 8 | VBUS | input |
| 9 | ~{RST}/C2CK | input |
| 10 | P3.0/C2D | bidirectional |
| 11 | P2.3 | bidirectional |
| 12 | P2.2 | bidirectional |
| 13 | P2.1 | bidirectional |
| 14 | P2.0 | bidirectional |
| 15 | P1.7 | bidirectional |
| 16 | P1.6 | bidirectional |
| 17 | P1.5 | bidirectional |
| 18 | P1.4 | bidirectional |
| 19 | P1.3 | bidirectional |
| 20 | P1.2 | bidirectional |
| 21 | P1.1 | bidirectional |
| 22 | P1.0 | bidirectional |
| 23 | P0.7 | bidirectional |
| 24 | P0.6 | bidirectional |
| 25 | P0.5 | bidirectional |
| 26 | P0.4 | bidirectional |
| 27 | P0.3 | bidirectional |
| 28 | P0.2 | bidirectional |
| 29 | GND | passive |
Footprint
ConfirmedPackage_DFN_QFN/QFN-28-1EP_5x5mm_P0.5mm_EP3.25x3.25mm
Pad Layout
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29
Pads (38)
| Number | Type |
|---|---|
| — | smd |
| — | smd |
| — | smd |
| — | smd |
| — | smd |
| — | smd |
| — | smd |
| — | smd |
| — | smd |
| 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 |
| 21 | smd |
| 22 | smd |
| 23 | smd |
| 24 | smd |
| 25 | smd |
| 26 | smd |
| 27 | smd |
| 28 | smd |
| 29 | smd |