SAM3S2B Atmel Corporation, SAM3S2B Datasheet - Page 987
SAM3S2B
Manufacturer Part Number
SAM3S2B
Description
Manufacturer
Atmel Corporation
Specifications of SAM3S2B
Flash (kbytes)
128 Kbytes
Pin Count
64
Max. Operating Frequency
64 MHz
Cpu
Cortex-M3
# Of Touch Channels
23
Hardware Qtouch Acquisition
No
Max I/o Pins
47
Ext Interrupts
47
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)
32
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
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If ANACH is set in ADC_MR the ADC can apply different gain and offset on each channel. Oth-
erwise the parameters of CH0 are applied to all channels.
The gain is configurable through the GAIN bit of the Channel Gain Register (ADC_CGR) as
shown in
Table 39-6.
To allow full range, analog offset of the ADC can be configured by the OFFSET bit of the Chan-
nel Offset Register (ADC_COR). The Offset is only available in Single Ended Mode.
Table 39-7.
OFFSET Bit
GAIN<0:1>
Table
00
01
10
11
0
1
Gain of the Sample and Hold Unit: GAIN Bits and DIFF Bit.
Offset of the Sample and Hold Unit: OFFSET DIFF and Gain (G)
39-6.
OFFSET (DIFF = 0)
GAIN (DIFF = 0)
(G-1)Vrefin/2
1
1
2
4
0
OFFSET (DIFF = 1)
GAIN (DIFF = 1)
0.5
1
2
2
0
SAM3S
SAM3S
987
987
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