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ST72372 Fiches technique(PDF) 6 Page - STMicroelectronics |
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ST72372 Fiches technique(HTML) 6 Page - STMicroelectronics |
6 / 94 page 6/94 ST72371/ST72372 PIN DESCRIPTION (Cont’d) Table 1. ST72371N Pin Description Pin n ° QFP64 Pin n ° SDIP56 Pin Name Type Description Remarks 1 NC Not Connected 2 22 PD6 I/O Port D6 3 23 PD5 I/O Port D5 External Interrupt: EI0 4 24 PD4 I/O Port D4 External Interrupt: EI1 5 25 PD3 I/O Port D3 External Interrupt: EI2 6 26 PD2 I/O Port D2 7 27 PD1 I/O Port D1 8 28 PD0 I/O Port D0 929 VSS S Ground 10 30 ICAP2 I Timer Input Capture 2 with 256 prescaler Not for general purpose I/O 11 31 VDD S Main power supply 12 32 PC0/OCMP I/O Port C0 or Timer Output Compare 13 33 PC1 I/O Port C1 14 34 PC2 I/O Port C2 External Interrupt: EI4 15 35 PC3 I/O Port C3 16 NC Not Connected 17 NC Not Connected 18 36 PC4/SCLI I/O Port C4 or I2C Serial Clock 19 37 PC5/SDAI I/O Port C5 or I2C Serial Data 20 38 PC6/RDI I/O Port C6, or SCI Receive Data Input 21 39 PC7/TDO I/O Port C7 or SCI Transmit Data Output 22 40 NU Non User pin. Must be left unconnected 23 41 NU Non User pin. Must be left unconnected 24 42 NU Non User pin. Must be left unconnected 25 43 NU Non User pin. Must be left unconnected 26 44 OSCOUT O Input/Out put Oscillator pin.These pins connect a parallel-resonant crystal, or an external source to the on-chip oscillator. 27 45 OSCIN I 28 46 PA7 I/O Port A7, High Sink 29 47 PA6 I/O Port A6, High Sink 30 48 PA5 I/O Port A5, High Sink 31 49 PA4 I/O Port A4, High Sink 32 NC Not Connected 33 NC Not Connected 34 50 PA3 I/O Port A3, High Sink 35 51 PA2 I/O Port A2, High Sink 36 52 PA1 I/O Port A1, High Sink 37 53 PA0 I/O Port A0, High Sink 38 54 RESET I/O Bidirectional. Active low. Top priority non maskable interrupt. Can be used to reset exter- nal peripherals. 39 55 NU I/O Non User pin. Must be left unconnected 6 |
Numéro de pièce similaire - ST72372 |
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Description similaire - ST72372 |
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