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ATSAM3U2E 데이터시트 PDF




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기능 SMART ARM-based Flash MCU
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ATSAM3U2E 데이터시트, 핀배열, 회로
SAM3U Series
Atmel | SMART ARM-based Flash MCU
DATASHEET
Description
The Atmel® | SMART SAM3U 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 96 MHz and features up to 256
Kbytes of Flash and up to 52 Kbytes of SRAM. The peripheral set includes a High
Speed USB Device Port with embedded transceiver, a High Speed MCI for
SDIO/SD/MMC, an External Bus Interface with NAND Flash controller, up to 4
USARTs, up to 2 TWIs, up to 5 SPIs, as well as 4 PWM timers, one 3-channel 16-
bit general-purpose timer, a low-power RTC, a 12-bit ADC and a 10-bit ADC.
The SAM3U devices have three software-selectable low-power modes: Sleep,
Wait, and Backup. In Sleep mode, the processor is stopped while all other
functions can be kept running. In Wait mode, all clocks and functions are stopped
but some peripherals can be configured to wake up the system based on
predefined conditions. In Backup mode, only the RTC, RTT, and wake-up logic
are running.
The Real-time Event Managment allows peripherals to receive, react to and send
events in Active and Sleep modes without processor intervention.
The SAM3U architecture is specifically designed to sustain high speed data
transfers. It includes a multi-layer bus matrix as well as multiple SRAM banks,
PDC and DMA channels that enable it to run tasks in parallel and maximize data
throughput.
It can operate from 1.62V to 3.6V and comes in 100-pin and 144-pin LQFP and
BGA packages.
The SAM3U device is particularly well suited for USB applications: data loggers,
PC peripherals and any high speed bridge (USB to SDIO, USB to SPI, USB to
External Bus Interface).
Atmel-6430G-ATARM-SAM3U-Series-Datasheet_31-Mar-15




ATSAM3U2E pdf, 반도체, 판매, 대치품
2. Block Diagram
Figure 2-1. 144-pin SAM3U4/2/1E Block Diagram
MASTER
SLAVE
TST
PCK0
-PCK2
XIN
XOUT
VDDUTMI
VDDCORE
XIN32
XOUT32
SHDN
FWUP
VDDBU
NRSTB
ERASE
NRST
System Controller
PLLA
UPLL
OSC
3-20 M
RC Osc.
12/8/4 M
WDT
SM
BOD
PMC
RC 32K
OSC
32K
8
GPBR
RTT
JTAG & Serial Wire
In-Circuit Emulator
SysTick Counter
Cortex-M3 Processor
fmax 96 MHz
N
V
I
C
MPU
I/D S
Flash
Unique
Identifier
HS UTMI
Transceiver
USB
Device
HS
DMA
5-layer AHB Bus Matrix
FLASH
2x128 Kbytes
1x128 Kbytes
1x64 Kbytes
SRAM0
32 Kbytes
16 Kbytes
8 Kbytes
SRAM1
16 Kbytes
16 Kbytes
ROM
16 Kbytes
APB
Peripheral
DMA
Controller
Voltage
Regulator
Peripheral
Bridge
4-Channel
DMA
SUPC RTC
POR
RSTC
PIOA
PIOC
PIOB
PDC
8-channel
12-bit ADC
10-bit ADC
PDC PDC
TWI0
TWI1
UART
PDC
USART0
USART1
USART2
USART3
PDC
PWM TC0
SPI
SSC
EBI
NAND Flash
Controller
& ECC
NAND Flash
SRAM
(4 Kbytes)
Static
Memory
Controller
HSMCI
NANDRDY
D0-D15
A0/NBS0
A1
A2-A20
NCS0
NCS1
NRD
NWR0/NWE
NWR1/NBS1
NWAIT
A23
A21/
NANDALE
A22/
NANDCLE
NCS3
NCS2
NANDOE,
NANDWE
4 SAM3U Series [DATASHEET]
Atmel-6430G-ATARM-SAM3U-Series-Datasheet_31-Mar-15

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ATSAM3U2E 전자부품, 판매, 대치품
Table 3-1. Signal Description List (Continued)
Signal Name
Function
Active Voltage
Type Level Reference Comments
Flash Memory
ERASE
Flash and NVM Configuration Bits Erase Command
Input
High
VDDBU
Internal permanent 15K
pulldown
Reset/Test
NRST
Microcontroller Reset
I/O
Low
VDDIO
Internal permanent
pullup
NRSTB
TST
Asynchronous Microcontroller Reset
Test Select
Input Low
Internal permanent
pullup
VDDBU
Input
Internal permanent
pulldown
Universal Asynchronous Receiver Transceiver - UART
URXD
UART Receive Data
Input
UTXD
UART Transmit Data
Output
PIO Controller - PIOA - PIOB - PIOC
PA0–PA31
Parallel IO Controller A
Schmitt Trigger (1)
Reset State:
I/O
- PIO Input
- Internal pullup enabled
PB0–PB31
Parallel IO Controller B
PC0–PC31
Parallel IO Controller C
Schmitt Trigger (2)
Reset State:
I/O VDDIO
- PIO Input
- Internal pullup enabled
Schmitt Trigger(3)
Reset State:
I/O
- PIO Input
- Internal pullup enabled
External Bus Interface
D0–D15
Data Bus
I/O
A0–A23
Address Bus
Output
NWAIT
External Wait Signal
Input Low
Static Memory Controller - SMC
NCS0–NCS3
Chip Select Lines
Output Low
NWR0–NWR1
Write Signal
Output Low
NRD
Read Signal
Output Low
NWE
Write Enable
Output Low
NBS0–NBS1
Byte Mask Signal
Output Low
SAM3U Series [DATASHEET]
Atmel-6430G-ATARM-SAM3U-Series-Datasheet_31-Mar-15
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