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CH334F
USB HUB controller, QFN-24
Schematic Symbol
Pin Configuration (25 pins)
| Pin | Name | Type |
|---|---|---|
| 1 | ~{OVCUR} | input |
| 2 | NC | no_connect |
| 3 | XO | passive |
| 4 | XI | passive |
| 5 | DM4- | bidirectional |
| 6 | DP4+ | bidirectional |
| 7 | DM3- | bidirectional |
| 8 | DP3+ | bidirectional |
| 9 | DM2- | bidirectional |
| 10 | DP2+ | bidirectional |
| 11 | DM1- | bidirectional |
| 12 | DP1+ | bidirectional |
| 13 | LED3/SCL | bidirectional |
| 14 | DMU- | bidirectional |
| 15 | DPU+ | bidirectional |
| 16 | ~{RESET}/CDP | input |
| 17 | NC | no_connect |
| 18 | PSELF | input |
| 19 | V5 | power_in |
| 20 | VDD33_{LDO} | power_out |
| 21 | LED4/SDA | bidirectional |
| 22 | LED1 | bidirectional |
| 23 | LED2 | bidirectional |
| 24 | ~{PWREN} | output |
| 25 | GND | power_in |
Footprint
ConfirmedPackage_DFN_QFN/QFN-24-1EP_4x4mm_P0.5mm_EP2.7x2.7mm
Pad Layout
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Pads (29)
| Number | Type |
|---|---|
| — | 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 |