ATSAM3U2EA-CU Atmel, ATSAM3U2EA-CU Datasheet - Page 38
![IC MCU 32BIT 128KB FLSH 144LFBGA](/photos/12/13/121356/144-lfbga_sml.jpg)
ATSAM3U2EA-CU
Manufacturer Part Number
ATSAM3U2EA-CU
Description
IC MCU 32BIT 128KB FLSH 144LFBGA
Manufacturer
Atmel
Series
SAM3Ur
Specifications of ATSAM3U2EA-CU
Core Processor
ARM® Cortex-M3™
Core Size
32-Bit
Speed
96MHz
Connectivity
EBI/EMI, I²C, MMC, SPI, SSC, UART/USART, USB
Peripherals
Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT
Number Of I /o
96
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
36K x 8
Voltage - Supply (vcc/vdd)
1.65 V ~ 1.95 V
Data Converters
A/D 8x10b, 8x12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
144-LFBGA
Processor Series
ATSAM3x
Core
ARM Cortex M3
Data Bus Width
32 bit
Data Ram Size
36 KB
Interface Type
4xUSART, 2xTWI, 5xSPI, Bus
Maximum Clock Frequency
96 MHz
Number Of Programmable I/os
96
Number Of Timers
8
Operating Supply Voltage
1.62 V to 3.6 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
JTRACE-CM3, MDK-ARM, RL-ARM, ULINK2
Development Tools By Supplier
ATSAM3U-EK
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
10.5
38
Clock Generator
SAM3U Series
The Slow Clock generator is based on a 32 kHz crystal oscillator and an embedded 32 kHz RC
oscillator. The Slow Clock defaults to the RC oscillator, but the software can enable the crystal
oscillator and select it as the Slow Clock source.
The Supply Controller starts up the device by enabling the Voltage Regulator, then it generates
the proper reset signals to the core power supply.
It also enables to set the system in different low power modes and to wake it up from a wide
range of events.
The Clock Generator is made up of:
Figure 10-2. Clock Generator Block Diagram
• One Low Power 32768 Hz Slow Clock Oscillator with bypass mode
• One Low Power RC Oscillator
• One 3 to 20 MHz Crystal Oscillator, which can be bypassed
• One Fast RC Oscillator factory programmed, 3 output frequencies can be selected: 4, 8 or 12
• One 480 MHz UPLL providing a clock for the USB High Speed Device Controller. Input
• One 96 to 192 MHz programmable PLL (PLL A), capable to provide the clock MCK to the
MHz. By default 4 MHz is selected. 8 MHz and 12 MHz output are factory calibrated.
frequency is 12 MHz (only).
processor and to the peripherals. The input frequency of the PLL A is between 8 and 16 MHz.
XOUT32
XIN32
XOUT
XIN
Management
Clock Generator
32k RC OSC
Slow Clock
12M Main
12/8/4 MHz
Controller
Status
Oscillator
Oscillator
PLL and
Divider A
On Chip
On Chip
RC OSC
Power
PLL B
Divider
/6 /8
Control
XTALSEL
Slow Clock
SLCK
Main Clock
MAINCK
MAINSEL
HSCK
UPLL Clock
UPLLCK
PLLA Clock
PLLACK
6430DS–ATARM–28-Mar-11