ATSAMR21E17A-MU datasheet, PDF

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ATSAMR21E17A-MU: DescriptionRISC Microcontroller, CMOS,; CategoryThe embedded processor and controller Microcontrollers and processors; File Size766KB，23 Pages; ManufacturerAtmel (Microchip)

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ATSAMR21E17A-MU Overview

RISC Microcontroller, CMOS,

ATSAMR21E17A-MU Parametric

Parameter Name	Attribute value
Objectid	1764157459
package instruction	QFN-32
Reach Compliance Code	unknown
Samacsys Manufacturer	Microchip
Samacsys Modified On	2021-01-27 00:33:54
Has ADC	YES
Address bus width
bit size	32
CPU series	CORTEX-M0
DAC channel	NO
DMA channel	YES
External data bus width
Format	FIXED POINT
Integrated cache	YES
JESD-30 code	S-XQCC-N32
length	5 mm
low power mode	YES
Number of DMA channels	12
Number of external interrupt devices	14
Number of I/O lines	16
Number of serial I/Os	4
Number of terminals	32
Number of timers	6
On-chip data RAM width	8
On-chip program ROM width	8
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
PWM channel	YES
Package body material	UNSPECIFIED
encapsulated code	QCCN
Encapsulate equivalent code	LCC32,.2SQ,20
Package shape	SQUARE
Package form	CHIP CARRIER
RAM (bytes)	16384
RAM (number of words)	8192
rom(word)	131072
ROM programmability	FLASH
Maximum seat height	1 mm
speed	48 MHz
Maximum supply voltage	3.6 V
Minimum supply voltage	1.8 V
surface mount	YES
technology	CMOS
Temperature level	INDUSTRIAL
Terminal form	NO LEAD
Terminal pitch	0.5 mm
Terminal location	QUAD
width	5 mm
uPs/uCs/peripheral integrated circuit type	MICROCONTROLLER, RISC

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Atmel SAM R21E / SAM R21G

SMART ARM-Based Wireless Microcontroller

DATASHEET SUMMARY

Description

The Atmel

| SMART

™

SAM R21 is a series of low-power microcontrollers using the 32-bit ARM

Cortex

-M0+ processor and an integrated ultra-low power 2.4GHz ISM band transceiver. SAM

R21 devices are available in 32- and 48-pin packages with up to 256KB Flash, 32KB of SRAM

and are operating at a maximum frequency of 48MHz and reach 2.46 Coremark/MHz. They are

designed for simple and intuitive migration with identical peripheral modules, hex compatible

code, identical linear address map and pin compatible migration paths between all devices in the

product series. All devices include intelligent and flexible peripherals, Atmel Event System for

inter-peripheral signaling, and support for capacitive touch button, slider and wheel user

interfaces.

The Atmel SAM R21 devices provide the following features: In-system programmable Flash,

optional 512KB serial Flash,12-channel direct memory access (DMA) controller, 12-channel

Event System, programmable interrupt controller, up to 28 programmable I/O pins, ultra-low

power 2.4GHz ISM band transceiver with a data rate of 250kb/s, 32-bit real-time clock and

calendar, three 16-bit Timer/Counters (TC) and three 16-bit Timer/Counters for Control (TCC),

where each TC can be configured to perform frequency and waveform generation, accurate

program execution timing or input capture with time and frequency measurement of digital

signals. The TCs can operate in 8- or 16-bit mode, selected TCs can be cascaded to form a 32-bit

TC, and the three Timer/Counters for Control have extended functions optimized for motor,

lighting and other control applications. The series provide one full-speed USB 2.0 embedded host

and device interface; up to five Serial Communication Modules (SERCOM) that each can be

configured to act as an USART, UART, SPI, I2C up 3.4MHz and LIN slave; up to eight channel

350ksps 12-bit ADC with programmable gain and optional oversampling and decimation

supporting up to 16-bit resolution, two analog comparators with window mode, Peripheral Touch

Controller supporting up to 48 buttons, sliders, wheels and proximity sensing; programmable

Watchdog Timer, brown-out detector and power-on reset and two-pin Serial Wire Debug (SWD)

program and debug interface.

All devices have accurate and low-power external and internal oscillators. All oscillators can be

used as a source for the system clock. Different clock domains can be independently configured

to run at different frequencies, enabling power saving by running each peripheral at its optimal

clock frequency, and thus maintaining a high CPU frequency while reducing power consumption.

The SAM R21 devices have two software-selectable sleep modes, idle and standby. In idle mode

the CPU is stopped while all other functions can be kept running. In standby all clocks and

functions are stopped expect those selected to continue running. The device supports

SleepWalking, which is the module's ability to wake itself up and wake up its own clock, and

hence perform predefined tasks without waking up the CPU. The CPU can then be only woken on

a need basis, e.g. a threshold is crossed or a result is ready. The Event System supports

synchronous and asynchronous events, allowing peripherals to receive, react to and send events

even in standby mode.

The Flash program memory can be reprogrammed in-system through the SWD interface. The

same interface can be used for non-intrusive on-chip debug of application code. A boot loader

running in the device can use any communication interface to download and upgrade the

application program in the Flash memory.

The SAM R21 devices are supported with a full suite of program and system development tools,

including C compilers, macro assemblers, program debugger/simulators, programmers and

evaluation kits.

Atmel-42223GS–SAM-R21_Summary–05/2016

SMART

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