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P83CL580 Datasheet(PDF) 8 Page - NXP Semiconductors |
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P83CL580 Datasheet(HTML) 8 Page - NXP Semiconductors |
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8 / 80 page  1997 Mar 14 8 Philips Semiconductors Product specification Low voltage 8-bit microcontrollers with UART, I2C-bus and ADC P80CL580; P83CL580 7.2 Pin description Table 1 Pin description for VSO56 (SOT190-1) and QFP64 (SOT319-2) For more extensive description of the port pins see Chapter 10 “I/O facilities”. SYMBOL PIN DESCRIPTION VSO56 QFP64 ADC3 to ADC0 1 to 4 59 to 62 4 input channels to the ADC. Vref(p)(A) 5 63 Positive potential of analog-to-digital conversion reference resistor. VSSA 6 64 Analog part ground. P4.0 to P4.7 7 to 14 1, 2, 4 to 8, 10 Port 4: 8-bit bidirectional I/O port. (P4.0 to P4.7). Port pins that have logic 1s written to them are pulled HIGH by internal pull-ups, and in this state can be used as inputs. As inputs, Port 4 pins that are externally pulled LOW will source current (IIL, see Chapter 23) due to the internal pull-ups. Port 4 output buffers can sink/source 4 LS TTL loads. RST 15 11 Reset: a HIGH level on this pin for two machine cycles while the oscillator is running resets the device. P1.0/INT2/T2 16 12 • Port 1: 8-bit bidirectional I/O port (P1.0 to P1.7). Same characteristics as Port 4, but note that P1.6 and P1.7 are open-drain only. • Alternative functions: – INT2 to INT8 are external interrupt inputs – STADC is the external trigger of the analog-to-digital converter – T2 and T2EX are the Timer/event counter 2 inputs – SCL and SDA are the I2C-bus clock and data lines. P1.1/INT3/T2EX 17 13 P1.2/INT4/STADC 18 14 P1.3/INT5 19 15 P1.4/INT6 20 16 P1.5/INT7 21 19 P1.6/INT8/SCL 22 20 P1.7/SDA 23 21 PWM0 24 22 Pulse Width Modulation output 0. EWN 25 23 Enable Watchdog Timer: enable for Watchdog Timer and enable Power-down mode. XTAL2 26 24 Crystal oscillator output: output of the inverting amplifier of the oscillator. Left open when external clock is used. XTAL1 27 25 Crystal oscillator input: input to the inverting amplifier of the oscillator, also the input for an externally generated clock source. VSS 28 26 Ground: circuit ground potential. P3.0/RXD 29 27 • Port 3: 8-bit bidirectional I/O port (P3.0 to P3.7). Same characteristics as Port 4 • Alternative functions: – RXD is the UART serial data input (asynchronous) or data input/output (synchronous) – TXD is the UART serial data output (asynchronous) or clock output (synchronous) –INT0 and INT1 are external interrupts 0 and 1 – T0 and T1 are external inputs for timers 0 and 1. P3.1/TXD 30 28 P3.2/INT0 31 29 P3.3/INT1 32 30 P3.4/T0 33 31 P3.5/T1 34 32 P3.6/WR 35 33 P3.7/RD 36 34 |
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