ARM Cortex-M3 RISC Processor
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SAM3S2A Product Details
ARM Cortex-M3 RISC Processor The SAM3S2A is a member of Atmel\'s SAMS3 series family of microcontrollers based on the high performance 32-bit ARM Cortex-M3 RISC processor. It operates at a maximum speed of 64 MHz and features 128 Kbytes of Flash and 32 Kbytes of SRAM. The peripheral set includes a Full Speed USB Device port with embedded transceiver, an External Bus Interface with NAND Flash controller, 1xUSART, 2xUARTS, 2xTWIs, 2xSPIs, an I2S, as well as 1 PWM timer, 6x16-bit timers, an RTC, a 12-bit ADC and an analog comparator. The SAM3S2A is a medium range general purposeFeatures
� ARM� Cortex�-M3 revision 2.0 running to 64 MHz � Memory Protection Unit (MPU) � Thumb�-2 instruction set Pin-to-pin compatible with AT91SAM7S legacy products (48- and 64-pin versions) Memories � From to 256 Kbytes embedded Flash, 128-bit wide access, memory accelerator, single plane � From to 48 Kbytes embedded SRAM � 16 Kbytes ROM with embedded bootloader routines (UART, USB) and IAP routines � 8-bit Static Memory Controller (SMC): SRAM, PSRAM, NOR and NAND Flash support � Memory Protection Unit (MPU) System � Embedded voltage regulator for single supply operation � Power-on-Reset (POR), Brown-out Detector (BOD) and Watchdog for safe operation � Quartz or ceramic resonator oscillators: to 20 MHz main power with Failure Detection and optional low power 32.768 kHz for RTC or device clock � High precision 8/12 MHz factory trimmed internal RC oscillator with 4 MHz default frequency for device startup. In-application trimming access for frequency adjustment � Slow Clock Internal RC oscillator as permanent low-power mode device clock � Two PLLs to 130 MHz for device clock and for USB � Temperature Sensor to 22 peripheral DMA (PDC) channels Low Power Modes � Sleep and Backup modes, down �A in Backup mode � Ultra low power RTC Peripherals � USB 2.0 Device: 12 Mbps, 2668 byte FIFO, to 8 bidirectional Endpoints. On-Chip Transceiver to 2 USARTs with ISO7816, IrDA�, RS-485, SPI, Manchester and Modem Mode � Two 2-wire UARTs to 2 Two Wire Interface (I2C compatible), 1 SPI, 1 Serial Synchronous Controller (I2S), 1 High Speed Multimedia Card Interface (SDIO/SD Card/MMC) to 6 Three-Channel 16-bit Timer/Counter with capture, waveform, compare and PWM mode. Quadrature Decoder Logic and 2-bit Gray Up/Down Counter for Stepper Motor 4-channel 16-bit PWM with Complementary Output, Fault Input, 12-bit Dead Time Generator Counter for Motor Control � 32-bit Real-time Timer and RTC with calendar and alarm features 15-channel, 1Msps ADC with differential input mode and programmable gain stage � One 12-bit 1Msps DAC � One Analog Comparator with flexible input selection, Selectable input hysteresis � 32-bit Cyclic Redundancy Check Calculation Unit (CRCCU) I/O to 79 I/O lines with external interrupt capability (edge or level sensitivity), debouncing, glitch filtering and on-die Series Resistor Termination � Three 32-bit Parallel Input/Output Controllers, Peripheral DMA assisted Parallel Capture Mode Packages � 100-lead LQFP, x 14 mm, pitch 0.5 mm/100-ball LFBGA, x 9 mm, pitch � 64-lead LQFP, x 10 mm, pitch 0.5 mm/64-pad QFN 9x9 mm, pitch � 48-lead LQFP, x 7 mm, pitch 0.5 mm/48-pad QFN 7x7 mm, pitch 0.5 mm
NOTE: This is a summary document. The complete document is available on the Atmel website at www.atmel.com.
Atmel's SAM3S series is a member of a family of Flash microcontrollers based on the high performance 32-bit ARM Cortex-M3 RISC processor. It operates at a maximum speed of 64 MHz and features to 256 Kbytes of Flash and to 48 Kbytes of SRAM. The peripheral set includes a Full Speed USB Device port with embedded transceiver, a High Speed MCI for SDIO/SD/MMC, an External Bus Interface featuring a Static Memory Controller providing connection to SRAM, PSRAM, NOR Flash, LCD Module and NAND Flash, 2x USARTs, 2x UARTs, 2x TWIs, 3x SPI, I2S, as well as 1 PWM timer, 6x general-purpose 16-bit timers, an RTC, a ADC, a 12-bit DAC and an analog comparator. The SAM3S series is ready for capacitive touch thanks to the QTouch library, offering an easy way to implement buttons, wheels and sliders The SAM3S device is a medium range general purpose microcontroller with the best ratio in terms of reduced power consumption, processing power and peripheral set. This enables the SAM3S able to sustain a wide range of applications including consumer, industrial control, and PC peripherals. It operates from to 3.6V and is available 48-, 64- and 100-pin QFP, 48- and 64-pin QFN, and 100-pin BGA packages. The SAM3S series is the ideal migration path from the SAM7S series for applications that require more performance. The SAM3S series is pin-to-pin compatible with the SAM7Sseries.
The SAM3S series devices differ in memory size, package and features list. Table 1-1 below summarizes the configurations of the device family
Timer Counter Channels 6 UART/ USARTs 2/2(1) 12-bit DAC Output 2 External Bus Interface 8-bit data, 4 chip selects, 24-bit address 8-bit data, 4 chip selects, 24-bit address 8-bit data, 4 chip selects, 24-bit address -
Flash 256 Kbytes single plane 256 Kbytes single plane 256 Kbytes single plane 128 Kbytes single plane 128 Kbytes single plane 128 Kbytes single plane 64 Kbytes single plane 64 Kbytes single plane 64 Kbytes single planeHSMCI 1 port 4 bits 1 port 4 bits 1 port 4 bits 1 port 4 bits 1 port 4 bits 1 port 4 bits -
JTAG & Serial Wire Flash Unique Identifier
RTT RTC POR RSTC SM Peripheral Bridge 2668 USB 2.0 Bytes Full FIFO Speed
PIOA / PIOB / PIOC PWML[0:3] PWMFI0 ADTRG AD[0..14] ADVREF DAC0 DAC1 DATRG
NCS2 NCS3 NRD NWE NANDOE NANDWE NWAIT PIODCEN1 PIODCEN2 PIODCCLK NPCS2 NPCS3 MISO MOSI SPCK RK RF MCCK MCCDA MCDA[0..3]
PDC USART1 PDC Timer Counter A TC[0..2] SPI Timer Counter B TC[3..5] PWM PDC Temp. Sensor ADC DAC PDC PIO
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