SAM3S16C Atmel Corporation, SAM3S16C Datasheet - Page 12
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SAM3S16C
Manufacturer Part Number
SAM3S16C
Description
Manufacturer
Atmel Corporation
Datasheet
1.SAM3S16C.pdf
(1130 pages)
Specifications of SAM3S16C
Flash (kbytes)
1024 Kbytes
Pin Count
100
Max. Operating Frequency
100 MHz
Cpu
Cortex-M3
# Of Touch Channels
39
Hardware Qtouch Acquisition
No
Max I/o Pins
79
Ext Interrupts
79
Usb Transceiver
1
Quadrature Decoder Channels
2
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
16
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)
128
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
6
Output Compare Channels
6
Input Capture Channels
6
Pwm Channels
4
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
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5. Power Considerations
5.1
5.2
5.3
12
Power Supplies
Voltage Regulator
Typical Powering Schematics
SAM3S16
The SAM3S16 product has several types of power supply pins:
The SAM3S16 embeds a voltage regulator that is managed by the Supply Controller.
This internal regulator is intended to supply the internal core of SAM3S16. It features two differ-
ent operating modes:
For adequate input and output power supply decoupling/bypassing, refer to the Voltage Regula-
tor section in the Electrical Characteristics section of the datasheet.
The SAM3S16 supports a 1.62V-3.6V single supply mode. The internal regulator input con-
nected to the source and its output feeds VDDCORE.
As VDDIN powers the voltage regulator, the ADC/DAC and the analog comparator, when the
user does not want to use the embedded voltage regulator, it can be disabled by software via
the SUPC (note that it is different from Backup mode).
• VDDCORE pins: Power the core, the embedded memories and the peripherals; voltage
• VDDIO pins: Power the Peripherals I/O lines (Input/Output Buffers); USB transceiver; Backup
• VDDIN pin: Voltage Regulator Input, ADC, DAC and Analog Comparator Power Supply;
• VDDPLL pin: Powers the PLLA, PLLB, the Fast RC and the 3 to 20 MHz oscillator; voltage
• In Normal mode, the voltage regulator consumes less than 500 µA static current and draws
• In Backup mode, the voltage regulator consumes less than 1 µA while its output (VDDOUT)
ranges from 1.08V to 1.32V.
part, 32kHz crystal oscillator and oscillator pads; ranges from 1.62V to 3.6V.
Voltage ranges from 1.62V to 3.6V.
ranges from 1.08V to 1.32V.
80 mA of output current. Internal adaptive biasing adjusts the regulator quiescent current
depending on the required load current. In Wait Mode, quiescent current is only 5 µA.
is driven internally to GND. The default output voltage is 1.20V and the start-up time to reach
Normal mode is inferior to 300 µs.
Figure 5-1
shows the power schematics.
11117B–ATARM–18-Oct-11
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