SAM3U2C Atmel Corporation, SAM3U2C Datasheet - Page 1087

• Manufacturer Part Number: SAM3U2C
• Manufacturer: Atmel Corporation

Specifications of SAM3U2C

• Flash (kbytes): 128 Kbytes
• Pin Count: 100
• Max. Operating Frequency: 96 MHz
• Cpu: Cortex-M3
• # Of Touch Channels: 28
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 57
• Ext Interrupts: 57
• Usb Transceiver: 1
• Quadrature Decoder Channels: 1
• Usb Speed: Hi-Speed
• Usb Interface: Device
• Spi: 4
• Twi (i2c): 1
• Uart: 4
• Ssc: 1
• Sd / Emmc: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 12
• Adc Speed (ksps): 384
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 36
• Self Program Memory: YES
• External Bus Interface: 1
• Dram Memory: No
• Nand Interface: Yes
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.8/3.3
• Operating Voltage (vcc): 1.62 to 3.6
• Fpu: No
• Mpu / Mmu: Yes / No
• Timers: 3
• Output Compare Channels: 3
• Input Capture Channels: 3
• Pwm Channels: 4
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

42. Analog-to-Digital Converter (ADC)
42.1
42.2
Figure 42-1. Analog-to-Digital Converter Block Diagram
42.3
Table 42-1.
6430E–ATARM–29-Aug-11
Pin Name
AD0 - AD7
ADTRG
Description
Block Diagram
Signal Description
Analog Inputs
with I/O lines
Multiplexed
ADC Pin Description
VDDANA
ADVREF
ADTRG
The ADC is based on a Successive Approximation Register (SAR) 10-bit Analog-to-Digital Con-
verter (ADC). It also integrates an 8-to-1 analog multiplexer, making possible the analog-to-
digital conversions of 8 analog lines. The conversions extend from 0V to ADVREF. The ADC
supports an 8-bit or 10-bit resolution mode, and conversion results are reported in a common
register for all channels, as well as in a channel-dedicated register. Software trigger, external
trigger on rising edge of the ADTRG pin or internal triggers from Timer Counter output(s) or
PWM Event lines are configurable.
The ADC also integrates a Sleep Mode and a conversion sequencer and connects with a PDC
channel. These features reduce both power consumption and processor intervention.
Finally, the user can configure ADC timings, such as Startup Time and Sample & Hold Time.
GND
AD0
AD1
ADn
PIO
Description
Analog input channels
External trigger
Selection
Channels
Trigger
Counter
Timer
Analog-to-Digital
Approximation
ADC cell
Successive
Converter
Register
ADC Controller
Interface
PMC
Control
Logic
User
MCK
ADC Interrupt
PDC
NVIC
SAM3U Series
System Bus
Peripheral Bridge
APB
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