AT91SAM7X512-AU-999 Atmel, AT91SAM7X512-AU-999 Datasheet - Page 12
AT91SAM7X512-AU-999
Manufacturer Part Number
AT91SAM7X512-AU-999
Description
IC MCU ARM 512K HS FLASH 100LQFP
Manufacturer
Atmel
Series
AT91SAMr
Datasheet
1.AT91SAM7X512-AU-999.pdf
(687 pages)
Specifications of AT91SAM7X512-AU-999
Core Processor
ARM7
Core Size
16/32-Bit
Speed
55MHz
Connectivity
CAN, Ethernet, I²C, SPI, SSC, UART/USART, USB
Peripherals
Brown-out Detect/Reset, DMA, POR, PWM, WDT
Number Of I /o
62
Program Memory Size
512KB (512K x 8)
Program Memory Type
FLASH
Ram Size
128K x 8
Voltage - Supply (vcc/vdd)
1.65 V ~ 1.95 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
100-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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Adequate input supply decoupling is mandatory for VDDIN in order to improve startup stability
and reduce source voltage drop. The input decoupling capacitor should be placed close to the
chip. For example, two capacitors can be used in parallel: 100 nF NPO and 4.7 µF X7R.
5.4
Typical Powering Schematics
The AT91SAM7X512/256/128 supports a 3.3V single supply mode. The internal regulator input
connected to the 3.3V source and its output feeds VDDCORE and the VDDPLL.
Figure 5-1
shows the power schematics to be used for USB bus-powered systems.
Figure 5-1.
3.3V System Single Power Supply Schematic
VDDFLASH
Power Source
VDDIO
ranges
DC/DC Converter
from 4.5V (USB)
to 18V
VDDIN
Voltage
3.3V
Regulator
VDDOUT
VDDCORE
VDDPLL
AT91SAM7X512/256/128 Preliminary
12
6120H–ATARM–17-Feb-09
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