USB Flash Drive
4. Block Diagram |
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| Program ROM | |
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| 8051 Micro |
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| Controller | Program RAM | |
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| DMA | Flash |
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| Control |
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| Data / |
| Logic |
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| Address |
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| Bus | EDC/ |
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| ECC |
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USB2.0 |
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USB1.1 | USB2.0 or | USB 2.0 |
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Host | Interface | DATA RAM |
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1.1 Port |
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| PLL, REG | CLK |
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| PWR_GOOD |
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| PWR_RST |
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Flash Memory
5. Absolute Maximum Ratings
Symbol |
| Parameter | Min | Max | Unit |
Tstorage | Storage Temperature | 75 | ℃ | ||
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Ta | Ambient Operating Temperature | 0 | 65 | ℃ | |
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Vcc3 | 3.3V | Supply Voltage | 3.6 | V | |
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Vcc18 | 1.8V | Supply Voltage | 2 | V | |
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Vin3.3 | 3.3V | Buffer Input Voltage | 3.6 | V | |
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Vin3/5 | 3.3V/5V Buffer Input Voltage | 5 | V | ||
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Vin1.8 | 1.8V | Buffer Input Voltage | 2 | V | |
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Rev. A.0 | 2/4 | April 2008 |
