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ST7261 Datasheet(PDF) 6 Page - STMicroelectronics |
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ST7261 Datasheet(HTML) 6 Page - STMicroelectronics |
6 / 80 page ST7261 6/80 PIN DESCRIPTION (Cont’d) Legend / Abbreviations: Type: I = input, O = output, S = supply Input level: A = Dedicated analog input Input level: C = CMOS 0.3VDD/0.7VDD, CT= CMOS 0.3VDD/0.7VDD with input trigger Output level: HS = high sink (on N-buffer only) Port configuration capabilities: – Input: float = floating, wpu = weak pull-up, int = interrupt (\ =falling edge, / =rising edge), ana = analog – Output: OD = open drain, PP = push-pull Table 1. Device Pin Description Pin n° Pin Name Level Port / Control Main Function (after reset) Alternate Function Input Output 914 VPP Sx FLASH programming voltage (12V), must be tied low in user mode. 11 16 OSCIN These pins are used connect an external clock source to the on-chip main oscillator. 12 17 OSCOUT 49 VSS S Digital Ground Voltage 813 VDD S Digital Main Power Supply Voltage 13 18 PB7/IT8 I/O CT HS x \ x Port B7 Interrupt 8 input 14 19 PB6/IT7 I/O CT HS x \ x Port B6 Interrupt 7 input 15 20 PB5/IT6 I/O CT HS x / x Port B5 Interrupt 6 input 16 1 PB4/IT5 I/O CT HS x / x Port B4 Interrupt 5 input 17 2 PB3 I/O CT HS x x Port B3 18 3 PB2 I/O CT HS x x Port B2 19 4 PB1 I/O CT HS x x Port B1 20 5 PB0/MCO I/O CT HS x x Port B0 CPU clock output 1 6 PA2/IT3 I/O CT x\ x Port A2 Interrupt 3 input 2 7 PA1/IT2 I/O CT X\ x Port A1 Interrupt 2 input 3 8 PA0/IT1/USBOE I/O CT X\ x Port A0 Interrupt 1 input/USB Output Enable 10 15 RESET I/O C Top priority non maskable interrupt (active low) 5 10 USBDM I/O USB bidirectional data (data -) 6 11 USBDP I/O USB bidirectional data (data +) 7 12 USBVCC S USB power supply 3.3V output |
Número de pieza similar - ST7261 |
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Descripción similar - ST7261 |
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