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AT83C5103XXX-ICSAL Datasheet(PDF) 4 Page - ATMEL Corporation |
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AT83C5103XXX-ICSAL Datasheet(HTML) 4 Page - ATMEL Corporation |
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4 / 64 page  4 AT8xC5103 4134C–8051–09/04 Pin Description Mnemonic Type Name and Function VSS I Ground: 0V reference VCC I Power Supply: 3.0V or 5.5V P1.0 - P1.7 I/O Port 1: Port 1 is an 8-bit programmable I/O port with internal pull-up Alternate functions for Port 1 include: I/O MISO (P1.0): Master IN, Slave OUT of the SPI controller I/O MOSI (P1.1): Master OUT, Slave IN of the SPI controller I/O DIG2 (P1.2): Programmable as Output with Push-pull ECI: External Clock for PCA I/O CEX0 (P1.3): Capture/Compare External I/O for PCA module 0 I/O CEX1 (P1.4): Capture/Compare External I/O for PCA module 1 I/O CEX2 (P1.5): Capture/Compare External I/O for PCA module 2 I/O CEX3 (P1.6): Capture/Compare External I/O for PCA module 3 I/O SS (P1.7): Slave select input of the SPI controller CEX4: Capture/Compare External I/O for PCA module 3 XTAL1 I Input to the inverting oscillator amplifier XTAL2 O Output from the inverting oscillator amplifier RST/VPP I RST: Negative Reset input A low on this pin for two machine cycles while the oscillator is running, resets the device. This pin will include a pull-down to reset the circuit if no external reset level is applied. VPP: High voltage input for OTP programming P3.0 - P3.7 I/O Port 3: Port 3 is a 8-bit programmable I/O port with internal pull-up. I/O P3.0: Programmable as Output with Push-pull. I/O P3.1: Programmable as Output with Push-pull. I/O DIG0 (P3.2): Programmable as Output with Push-pull. INT0: External Interrupt 0 I/O P3.3: Programmable as Output with Push-pull. INT1: External Interrupt 1 I/O DIG1 (P3.4): Programmable as Output with Push-pull. T0: Timer 0 external Input I/O P3.5: Programmable as Output with Push-pull. T1: Timer 1 external Input I/O SPICK (P3.6): Clock I/O of the SPI controller I/O P3.7: Programmable as Output with Push-pull. P4.0-P4.2 I/O Port 4: Port 4 is an 3-bit I/O port with internal pull-up |
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