AT91SAM ARM-based Flash MCU
SAM3S
SUMMARY
Description
Atmel's SAM3S series is a member of a family of 32-bit Flash microcontrollers based on the high performance ARM
Cortex-M3 processor. It operates at a maximum speed of 64 MHz and features up to 256 Kbytes of Flash and up 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, an I2S, as well as 1 PWM
timer, 6x general-purpose 16-bit timers, an RTC, an 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 to sustain a wide range of applications
including consumer, industrial control, and PC peripherals.
It operates from 1.62V to 3.6V and is available in 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 SAM7S series.
This is a summary document.
The complete document is
available on the Atmel website
at www.atmel.com.
6500ES–ATARM–11-Feb-13
1.
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Core
Features
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– ARM
®
Cortex
®
-M3 revision 2.0 running at up to 64 MHz
– Memory Protection Unit (MPU)
– Thumb
®
-2 instruction set
Pin-to-pin compatible with AT91SAM7S series (48- and 64-pin versions)
Memories
– From 64 to 256 Kbytes embedded Flash, 128-bit wide access, memory accelerator, single plane
– From 16 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: 3 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 up to 130 MHz for device clock and for USB
– Temperature Sensor
– Up to 22 peripheral DMA (PDC) channels
Low Power Modes
– Sleep and Backup modes, down to 1.8 µA in Backup mode
– Ultra low power RTC
Peripherals
– USB 2.0 Device: 12 Mbps, 2668 byte FIFO, up to 8 bidirectional Endpoints. On-Chip Transceiver
– Up to 2 USARTs with ISO7816, IrDA
®
, RS-485, SPI, Manchester and Modem Mode
– Two 2-wire UARTs
– Up to 2 Two Wire Interface (I2C compatible), 1 SPI, 1 Serial Synchronous Controller (I2S), 1 High Speed Multimedia Card
Interface (SDIO/SD Card/MMC)
– Up 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
– Up to 15-channel, 1Msps ADC with differential input mode and programmable gain stage
– One 2-channel 12-bit 1Msps DAC
– One Analog Comparator with flexible input selection, Selectable input hysteresis
– 32-bit Cyclic Redundancy Check Calculation Unit (CRCCU)
– Write Protected Registers
I/O
– Up 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, 14 x 14 mm, pitch 0.5 mm/100-ball TFBGA, 9 x 9 mm, pitch 0.8 mm
– 64-lead LQFP, 10 x 10 mm, pitch 0.5 mm/64-pad QFN 9x9 mm, pitch 0.5 mm
– 48-lead LQFP, 7 x 7 mm, pitch 0.5 mm/48-pad QFN 7x7 mm, pitch 0.5 mm
SAM3S [SUMMARY]
6500ES–ATARM–11-Feb-13
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