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M69KB128AA 数据表(PDF) 12 Page - STMicroelectronics |
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M69KB128AA 数据表(HTML) 12 Page - STMicroelectronics |
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12 / 68 page ![]() 2 Signal descriptions M69KB128AA 12/68 2.13 VCC Supply Voltage The VCC Supply Voltage is the core supply voltage. 2.14 VCCQ Supply Voltage VCCQ provides the power supply for the I/O pins. This allows all Outputs to be powered independently from the core power supply, VCC. 2.15 VSS Ground The VSS Ground is the reference for all voltage measurements. 2.16 VSSQ Ground VSSQ ground is the reference for the input/output circuitry driven by VCCQ. VSSQ must be connected to VSS. |
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