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ST72F321BR7T6 Datasheet(PDF) 11 Page - STMicroelectronics |
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ST72F321BR7T6 Datasheet(HTML) 11 Page - STMicroelectronics |
11 / 187 page 11/187 PIN DESCRIPTION (Cont’d) For external pin connection guidelines, refer to See “ELECTRICAL CHARACTERISTICS” on page 138. Legend / Abbreviations for Table 2 : Type: I = input, O = output, S = supply Input level: A = Dedicated analog input In/Output level: C = CMOS 0.3VDD/0.7VDD CT= CMOS 0.3VDD/0.7VDD with input trigger TT= TTL 0.8V / 2V with Schmitt trigger Output level: HS = 20mA high sink (on N-buffer only) Port and control configuration: – Input: float = floating, wpu = weak pull-up, int = interrupt 1), ana = analog – Output: OD = open drain 2), PP = push-pull Refer to “I/O PORTS” on page 46 for more details on the software configuration of the I/O ports. The RESET configuration of each pin is shown in bold. This configuration is valid as long as the device is in reset state. Table 2. Device Pin Description Pin n° Pin Name Level Port Main function (after reset) Alternate function Input Output 1 - - PE4 (HS) I/O CT HS X XX X Port E4 2 - - PE5 (HS) I/O CT HS X XX X Port E5 3 - - PE6 (HS) I/O CT HS X XX X Port E6 4 - - PE7 (HS) I/O CT HS X XX X Port E7 5 2 28 PB0/PWM3 I/O CT X ei2 X X Port B0 PWM Output 3 6 3 - PB1/PWM2 I/O CT X ei2 X X Port B1 PWM Output 2 7 4 - PB2/PWM1 I/O CT X ei2 X X Port B2 PWM Output 1 8 5 29 PB3/PWM0 I/O CT X ei2 X X Port B3 PWM Output 0 9 6 30 PB4 (HS)/ARTCLK I/O CT HS X ei3 X X Port B4 PWM-ART External Clock 10 - - PB5 / ARTIC1 I/O CT X ei3 X X Port B5 PWM-ART Input Capture 1 11 - - PB6 / ARTIC2 I/O CT X ei3 X X Port B6 PWM-ART Input Capture 2 12 - - PB7 I/O CT X ei3 X X Port B7 13 7 31 PD0/AIN0 I/O CT X X X X X Port D0 ADC Analog Input 0 14 8 32 PD1/AIN1 I/O CT X X X X X Port D1 ADC Analog Input 1 15 9 - PD2/AIN2 I/O CT X X X X X Port D2 ADC Analog Input 2 16 10 - PD3/AIN3 I/O CT X X X X X Port D3 ADC Analog Input 3 17 11 - PD4/AIN4 I/O CT X X X X X Port D4 ADC Analog Input 4 18 12 - PD5/AIN5 I/O CT X X X X X Port D5 ADC Analog Input 5 19 - - PD6/AIN6 I/O CT X X X X X Port D6 ADC Analog Input 6 20 - - PD7/AIN7 I/O CT X X X X X Port D7 ADC Analog Input 7 21 13 1 VAREF I Analog Reference Voltage for ADC 22 14 2 VSSA S Analog Ground Voltage |
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