SAM3S4B Atmel Corporation, SAM3S4B Datasheet - Page 981

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SAM3S4B

Manufacturer Part Number
SAM3S4B
Description
Manufacturer
Atmel Corporation
Datasheets

Specifications of SAM3S4B

Flash (kbytes)
256 Kbytes
Pin Count
64
Max. Operating Frequency
64 MHz
Cpu
Cortex-M3
# Of Touch Channels
23
Hardware Qtouch Acquisition
No
Max I/o Pins
79
Ext Interrupts
79
Usb Transceiver
1
Quadrature Decoder Channels
1
Usb Speed
Full Speed
Usb Interface
Device
Spi
3
Twi (i2c)
2
Uart
4
Ssc
1
Sd / Emmc
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
10
Adc Resolution (bits)
12
Adc Speed (ksps)
1000
Analog Comparators
1
Resistive Touch Screen
No
Dac Channels
2
Dac Resolution (bits)
12
Temp. Sensor
Yes
Crypto Engine
No
Sram (kbytes)
48
Self Program Memory
YES
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
Figure 39-2. Sequence of ADC conversions when Tracking time > Conversion time
Figure 39-3. Sequence of ADC conversions when Tracking time < Conversion time
39.6.2
6500C–ATARM–8-Feb-11
6500C–ATARM–8-Feb-11
from controller
from controller
to analog cell
to analog cell
Trigger event (Hard or Soft)
Commands
Trigger event (Hard or Soft)
Commands
Conversion Reference
ADC_Start
ADC_Start
ADCClock
ADCClock
ADC_SEL
ADC_SEL
ADC_ON
ADC_ON
DRDY
DRDY
LCDR
LCDR
The conversion is performed on a full range between 0V and the reference voltage pin ADVREF.
Analog inputs between these voltages convert to values based on a linear conversion.
(and tracking of CH0)
CH0
CH0
Start Up
Start Up
Tracking
of CH0
Time
Time
&
Transfer Period
Transfer Period
Conversion
Conversion
CH1
CH1
Tracking
of CH0
of CH1
of CH0
&
Tracking of CH1
CH0
CH0
Transfer Period
ADC_LCDR
Read the
Transfer Period
Conversion
CH2
Tracking
of CH1
of CH2
&
Conversion
CH1
CH2
Transfer Period
of CH1
Tracking of CH2
CH1
Conversion
CH3
Tracking
of CH2
of CH3
SAM3S
SAM3S
&
CH2
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