AT32UC3A3256S Atmel Corporation, AT32UC3A3256S Datasheet - Page 53
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AT32UC3A3256S
Manufacturer Part Number
AT32UC3A3256S
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT32UC3A0128.pdf
(377 pages)
2.AT32UC3A0128.pdf
(33 pages)
3.AT32UC3A0128.pdf
(159 pages)
4.AT32UC3A3128.pdf
(91 pages)
5.AT32UC3A3128.pdf
(1012 pages)
Specifications of AT32UC3A3256S
Flash (kbytes)
256 Kbytes
Pin Count
144
Max. Operating Frequency
66 MHz
Cpu
32-bit AVR
# Of Touch Channels
32
Hardware Qtouch Acquisition
No
Max I/o Pins
110
Ext Interrupts
110
Usb Transceiver
1
Usb Speed
Hi-Speed
Usb Interface
Device + OTG
Spi
6
Twi (i2c)
2
Uart
4
Lin
4
Ssc
1
Sd / Emmc
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
8
Adc Resolution (bits)
10
Adc Speed (ksps)
384
Resistive Touch Screen
No
Dac Channels
2
Dac Resolution (bits)
16
Temp. Sensor
No
Crypto Engine
AES
Sram (kbytes)
128
Self Program Memory
YES
External Bus Interface
1
Dram Memory
sdram
Nand Interface
Yes
Picopower
No
Temp. Range (deg C)
-40 to 85
I/o Supply Class
3.0 to 3.6
Operating Voltage (vcc)
3.0 to 3.6
Fpu
No
Mpu / Mmu
Yes / No
Timers
6
Output Compare Channels
18
Input Capture Channels
12
Pwm Channels
12
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT32UC3A3256S-ALUT
Manufacturer:
MOLEX
Quantity:
20 000
Part Number:
AT32UC3A3256S-U
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
- AT32UC3A0128 PDF datasheet
- AT32UC3A0128 PDF datasheet #2
- AT32UC3A0128 PDF datasheet #3
- AT32UC3A3128 PDF datasheet #4
- AT32UC3A3128 PDF datasheet #5
- Current page: 53 of 1012
- Download datasheet (16Mb)
Table 7-4.
7.5.11.1
7.5.11.2
32072G–11/2011
CPU/HSB/PBA/PBB
(excluding Power Manager)
32 KHz oscillator
RTC control register
GPLP registers
Watchdog control register
Voltage calibration register
RCSYS Calibration register
BOD control register
BOD33 control register
Bandgap control register
Clock control registers
Osc0/Osc1 and control registers
PLL0/PLL1 and control registers
OCD system and OCD registers
Power-On detector
Brown-Out detector
Effect of the Different Reset Events
Table 7-4 on page 53
The cause of the last reset can be read from the RCAUSE register. This register contains one bit
for each reset source, and can be read during the boot sequence of an application to determine
the proper action to be taken.
The Power-On Detector monitors the VDDCORE supply pin and generates a reset when the
device is powered on. The reset is active until the supply voltage from the linear regulator is
above the power-on threshold level. The reset will be re-activated if the voltage drops below the
power-on threshold level. See Electrical Characteristics for parametric details.
The Brown-Out Detector (BOD) monitors the VDDCORE supply pin and compares the supply
voltage to the brown-out detection level, as set in BOD.LEVEL. The BOD is disabled by default,
but can be enabled either by software or by flash fuses. The Brown-Out Detector can either gen-
erate an interrupt or a reset when the supply voltage is below the brown-out detection level. In
any case, the BOD output is available in bit POSCSR.BODDET bit.
Note that any change to the BOD.LEVEL field of the BOD register should be done with the BOD
deactivated to avoid spurious reset or interrupt.
See Electrical Characteristics chapter for parametric details.
Power-On
Reset
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
External
Reset
Y
N
N
N
Y
N
N
Y
Y
Y
Y
Y
Y
Y
lists parts of the device that are reset, depending on the reset source.
Watchdog
Reset
Y
N
N
N
N
N
N
N
N
N
Y
Y
Y
N
BOD
Reset
Y
N
N
N
Y
N
N
N
N
N
Y
Y
Y
Y
BOD33
Reset
Y
N
N
N
Y
N
N
N
N
N
Y
Y
Y
Y
CPU
Error
Reset
Y
N
N
N
Y
N
N
N
N
N
Y
Y
Y
Y
OCD
Reset
Y
N
N
N
Y
N
N
N
N
N
Y
Y
Y
N
53
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