Electronic Components Datasheet Search |
|
ADUC836BS Datasheet(PDF) 11 Page - Analog Devices |
|
ADUC836BS Datasheet(HTML) 11 Page - Analog Devices |
11 / 80 page ADuC836 –10– ADuC836 –11– PIN FUNCTION DESCRIPTIONS (continued) Pin No. Pin No. 52-Lead 56-Lead MQFP CSP Mnemonic Type* Description P1.4/AIN1 I Primary ADC, Positive Analog Input P1.5/AIN2 I Primary ADC, Negative Analog Input P1.6/AIN3 I Auxiliary ADC Input or Muxed Primary ADC, Positive Analog Input P1.7/AIN4/DAC I/O Auxiliary ADC Input or Muxed Primary ADC, Negative Analog Input.The voltage output from the DAC can also be configured to appear at this pin. 5 4, 5 AVDD S Analog Supply Voltage, 3 V or 5 V 6 6, 7, 8 AGND S Analog Ground. Ground reference pin for the analog circuitry. 7 9 REFIN(–) I Reference Input, Negative Terminal 8 10 REFIN(+) I Reference Input, Positive Terminal 13 15 SS I Slave Select Input for the SPI Interface. A weak pull-up is present on this pin. 14 16 MISO I/O Master Input/Slave Output for the SPI Interface. A weak pull-up is present on this input pin. 15 17 RESET I Reset Input. A high level on this pin for 16 core clock cycles while the oscillator is running resets the device.There is an internal weak pull-down and a Schmitt trigger input stage on this pin. 16–19, 18–21, P3.0–P3.7 I/O P3.0–P3.7 are bidirectional port pins with internal pull-up resistors. Port 3 pins that 22–25 24–27 have 1s written to them are pulled high by the internal pull-up resistors, and in that state can be used as inputs. As inputs, Port 3 pins being pulled externally low will source current because of the internal pull-up resistors.When driving a 0-to-1 output transition, a strong pull-up is active for two core clock periods of the instruction cycle. Port 3 pins also have various secondary functions including: P3.0/RXD I/O Receiver Data for UART Serial Port P3.1/TXD I/O Transmitter Data for UART Serial Port P3.2/INT0 I/O External Interrupt 0.This pin can also be used as a gate control input to Timer 0. P3.3/INT1 I/O External Interrupt 1.This pin can also be used as a gate control input to Timer 1. P3.4/T0/PWMCLK I/O Timer/Counter 0 External Input. If the PWM is enabled, an external clock may be input at this pin. P3.5/T1 I/O Timer/Counter 1 External Input P3.6/WR I/O External Data Memory Write Strobe. Latches the data byte from Port 0 into an external data memory. P3.7/RD I/O External Data Memory Read Strobe. Enables the data from an external data memory to Port 0. 20, 34, 48 22, 36, 51, DVDD S Digital Supply, 3 V or 5 V 21, 35, 47 23, 37, 38, DGND S Digital Ground. Ground reference point for the digital circuitry. 50 26 SCLOCK I/O Serial Interface Clock for either the I2C or SPI Interface. As an input, this pin is a Schmitt-triggered input, and a weak internal pull-up is present on this pin unless it is outputting logic low.This pin can also be directly controlled in software as a digital output pin. 27 MOSI/SDATA I/O Serial Data I/O for the I2C Interface or Master Output/Slave Input for the SPI Interface. A weak internal pull-up is present on this pin unless it is outputting logic low.This pin can also be directly controlled in software as a digital output pin. 28–31 30–33 P2.0–P2.7 I/O Port 2 is a bidirectional port with internal pull-up resistors. Port 2 pins that have 1s 36–39 39–42 (A8–A15) written to them are pulled high by the internal pull-up resistors, and in that state can (A16–A23) be used as inputs. As inputs, Port 2 pins being pulled externally low will source current because of the internal pull-up resistors. Port 2 emits the high order address bytes during fetches from external program memory and middle and high order address bytes during accesses to the 24-bit external data memory space. 32 34 XTAL1 I Input to the Crystal Oscillator Inverter 33 35 XTAL2 O Output from the Crystal Oscillator Inverter. (See the Hardware Design Considerations section for description.) REV. A REV. A |
Similar Part No. - ADUC836BS |
|
Similar Description - ADUC836BS |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.NET |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |