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ST72681 Datasheet(PDF) 4 Page - STMicroelectronics |
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ST72681 Datasheet(HTML) 4 Page - STMicroelectronics |
4 / 12 page ST72681 4/12 PIN DESCRIPTION (Cont’d) Legend / Abbreviations for tables: Type: I = input, O = output, S = supply Input level: A = Dedicated analog input In/Output level: CT = CMOS 0.3VDD/0.7VDD with input trigger TT= TTL 0.8V / 2V with Schmitt trigger Output level: D8 = 8mA drive D4 = 4mA drive D2 = 2mA drive Port and control configuration: – Input: float = floating, wpu = weak pull-up, wpd = weak pull-down, int = interrupt – Output: OD = pseudo open drain, PP = push-pull The RESET configuration of each pin is shown in bold. This configuration is valid as long as the device is in reset state. Table 1. Power Supply Table 2. Control & System Pin Pin Name Description 48 VSS_1 S Ground 47 VDD33_1 S IOs and Regulator supply voltage 33 VSS_2 S Ground 32 VDD33_2 S IOs and Regulator supply voltage 25 VSS_3 S Ground 24 VDD33_3 S IOs and Regulator supply voltage 14 VSS_4 S Ground 15 VDD33_4 S IOs and Regulator supply voltage 13 VDDOUSB S USB2 PHY, OSC and PLL power supply output (1.8V) Pin Pin Name Level Description 29 RESET I/O 3.3 CT Reset input with filter with internal pull-up |
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