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ST72681 Datasheet(PDF) 6 Page - STMicroelectronics |
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ST72681 Datasheet(HTML) 6 Page - STMicroelectronics |
6 / 32 page Pin description ST72681 6/32 Table 2. Power supply Pin Pin name Description 48 VSS_1 S Ground 47 VDD33_1 S I/Os and regulator supply voltage 33 VSS_2 S Ground 32 VDD33_2 S I/Os and regulator supply voltage 25 VSS_3 S Ground 24 VDD33_3 S I/Os and regulator supply voltage 14 VSS_4 S Ground 15 VDD33_4 S I/Os and regulator supply voltage 13 VDDOUSB S USB2 PHY, OSC and PLL power supply output (1.8 V) Table 3. USB 2.0 interface Pin Pin name Description 12 VDDBL S Supply voltage for buffers and deserialization flip flops (1.8 V) 11 VSSBL S Ground for buffers and deserialization flip flops (1.8 V) 10 USBDM I/O USB2 DATA - 9 USBDP I/O USB2 DATA + 8 VDD3 S Supply voltage for the FS compliance (3.3 V) 7 VDDC S Supply voltage for DLL & XOR tree (1.8 V) 6 VSSC S Ground for DLL & XOR tree (1.8 V) 5 RREF I/O Ref. resistor for integrated impedance process adaptation (11.3 kOhms 1% pull down) Table 4. USB 2.0 and core clock system Pin Pin name Description 4 VSSA S Ground for osc & PLL (1.8 V) 3 OSCOUT O 12 MHz oscillator output 2 OSCIN I 12 MHz oscillator input 1 VDDA S Supply voltage for osc & PLL (1.8 V) |
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