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ST72T331N2T3S Datasheet(PDF) 8 Page - STMicroelectronics |
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ST72T331N2T3S Datasheet(HTML) 8 Page - STMicroelectronics |
8 / 107 page 8/107 ST72E331 ST72T331 Note 1: VPP on EPROM/OTP only. Table 2. ST72T331Jx Pin Description 44 32 PA1 I/O Port A1 External Interrupt: EI0 45 33 PA2 I/O Port A2 External Interrupt: EI0 46 34 PA3 I/O Port A3 External Interrupt: EI0 47 35 VDD_1 S Main power supply 48 36 VSS_1 S Ground 49 37 PA4 I/O Port A4 High Sink 50 38 PA5 I/O Port A5 High Sink 51 39 PA6 I/O Port A6 High Sink 52 40 PA7 I/O Port A7 High Sink 53 41 TEST/VPP 1) S Test mode pin . In the EPROM programming mode, this pin acts as the programming voltage input VPP. This pin must be tied low in user mode 54 42 RESET I/O Bidirectional. Active low. Top priority non maskable interrupt. 55 NC Not Connected 56 NC Not Connected 57 43 VSS_2 S Ground 58 44 OSCOUT O Input/Output Oscillator pin. These pins connect a parallel-resonant crystal, or an external source to the on-chip oscillator. 59 45 OSCIN I 60 46 VDD_2 S Main power supply 61 47 PE0/TDO I/O Port E1 or SCI Transmit Data Out 62 48 PE1/RDI I/O Port E1 or SCI Receive Data In 63 NC Not Connected 64 NC Not Connected Pin n° QFP64 Pin n° SDIP56 Pin Name Type Description Remarks Pin n° QFP44 Pin n° SDIP42 Pin Name Type Description Remarks 1 38 PE1/RDI I/O Port E1 or SCI Receive Data In 2 39 PB0 I/O Port B0 External Interrupt: EI2 3 40 PB1 I/O Port B1 External Interrupt: EI2 4 41 PB2 I/O Port B2 External Interrupt: EI2 5 42 PB3 I/O Port B3 External Interrupt: EI2 6 1 PB4 I/O Port B4 External Interrupt: EI3 7 2 PD0/AIN0 I/O Port D0 or ADC Analog Input 0 8 3 PD1/AIN1 I/O Port D1 or ADC Analog Input 1 9 4 PD2/AIN2 I/O Port D2 or ADC Analog Input 2 10 5 PD3/AIN3 I/O Port D3 or ADC Analog Input 3 11 6 PD4/AIN4 I/O Port D4 or ADC Analog Input 4 12 7 PD5/AIN5 I/O Port D5 or ADC Analog Input 5 13 8 VDDA S Power Supply for analog peripheral (ADC) 14 9 VSSA S Ground for analog peripheral (ADC) 15 10 PF0/CLKOUT I/O Port F0 or CPU Clock Output External Interrupt: EI1 16 11 PF1 I/O Port F1 External Interrupt: EI1 17 12 PF2 I/O Port F2 External Interrupt: EI1 8 |
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