SAM3S4B Atmel Corporation, SAM3S4B Datasheet - Page 1094

• Manufacturer Part Number: SAM3S4B
• Manufacturer: Atmel Corporation

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

42.1
42.2
1094
Soldering Profile
Packaging Resources
SAM3S
Table 42-18
Table 42-18. Soldering Profile
Note:
A maximum of three reflow passes is allowed per component.
Land Pattern Definition.
Refer to the following IPC Standards:
Profile Feature
Average Ramp-up Rate (217°C to Peak)
Preheat Temperature 175°C ±25°C
Temperature Maintained Above 217°C
Time within 5°C of Actual Peak Temperature
Peak Temperature Range
Ramp-down Rate
Time 25°C to Peak Temperature
• IPC-7351A and IPC-782 (Generic Requirements for Surface Mount Design and Land Pattern
• Atmel Green and RoHS Policy and Package Material Declaration Data Sheet
Standards)
http://www.atmel.com/green/
The package is certified to be backward compatible with Pb/Sn soldering profile.
gives the recommended soldering profile from J-STD-020C.
http://landpatterns.ipc.org/default.asp
Green Package
3°C/sec. max.
180 sec. max.
60 sec. to 150 sec.
20 sec. to 40 sec.
260°C
6°C/sec. max.
8 min. max.
6500C–ATARM–8-Feb-11