ATSAM3S4AA-MU Atmel, ATSAM3S4AA-MU Datasheet - Page 1056
ATSAM3S4AA-MU
Manufacturer Part Number
ATSAM3S4AA-MU
Description
IC MCU 32BIT 256KB FLASH 48QFN
Manufacturer
Atmel
Series
SAM3Sr
Specifications of ATSAM3S4AA-MU
Core Processor
ARM® Cortex-M3™
Core Size
32-Bit
Speed
64MHz
Connectivity
I²C, MMC, SPI, SSC, UART/USART, USB
Peripherals
Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT
Number Of I /o
34
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
48K x 8
Voltage - Supply (vcc/vdd)
1.62 V ~ 1.95 V
Data Converters
A/D 8x10/12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
48-VQFN Exposed Pad, 48-HVQFN, 48-SQFN, 48-DHVQFN
Processor Series
ATSAM3x
Core
ARM Cortex M3
3rd Party Development Tools
JTRACE-CM3, MDK-ARM, RL-ARM, ULINK2
Development Tools By Supplier
ATSAM3S-EK
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
Part Number:
ATSAM3S4AA-MU
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
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41.4.9
41.4.9.1
41.4.9.2
1056
SAM3S Preliminary
Crystal Oscillators Design Consideration Information
Choosing a Crystal
Printed Circuit Board (PCB)
When choosing a crystal for the 32768 Hz Slow Clock Oscillator or for the 3-20 MHz Oscillator,
several parameters must be taken into account. Important parameters between crystal and
SAM3S specifications are as follows:
SAM3S Oscillators are low power oscillators requiring particular attention when designing PCB
systems.
• Load Capacitance
• Drive Level
• Equivalent Series Resistor (ESR)
• Shunt Capacitance
– C
– Crystal drive level >= Oscillator Drive Level. Having a crystal drive level number
– Crystal ESR <= Oscillator ESR Max. Having a crystal with ESR value higher than
– Max. crystal Shunt capacitance <= Oscillator Shunt Capacitance (
order to oscillate at the target frequency. The crystal must be chosen according to
the internal load capacitance (C
load capacitance will result in a frequency drift.
lower than the oscillator specification may damage the crystal.
the oscillator may cause the oscillator to not start.
crystal with ESR value higher than the oscillator may cause the oscillator to not start.
crystal
is the equivalent capacitor value the oscillator must “show” to the crystal in
L
) of the on-chip oscillator. Having a mismatch for the
C
SHUNT
6500C–ATARM–8-Feb-11
).
Having a
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