SAM9G20 Atmel Corporation, SAM9G20 Datasheet - Page 776
SAM9G20
Manufacturer Part Number
SAM9G20
Description
Manufacturer
Atmel Corporation
Datasheets
1.SAM9261.pdf
(248 pages)
2.SAM9261.pdf
(1274 pages)
3.SAM9261.pdf
(43 pages)
4.SAM9G20.pdf
(42 pages)
5.SAM9G20.pdf
(832 pages)
Specifications of SAM9G20
Flash (kbytes)
0 Kbytes
Pin Count
217
Max. Operating Frequency
400 MHz
Cpu
ARM926
Hardware Qtouch Acquisition
No
Max I/o Pins
96
Ext Interrupts
96
Usb Transceiver
3
Usb Speed
Full Speed
Usb Interface
Host, Device
Spi
2
Twi (i2c)
1
Uart
7
Ssc
1
Ethernet
1
Sd / Emmc
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
Yes
Adc Channels
4
Adc Resolution (bits)
10
Adc Speed (ksps)
95
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
32
Self Program Memory
NO
External Bus Interface
1
Dram Memory
sdram
Nand Interface
Yes
Picopower
No
Temp. Range (deg C)
-40 to 85
I/o Supply Class
1.8/3.3
Operating Voltage (vcc)
0.9 to 1.1
Fpu
No
Mpu / Mmu
No/Yes
Timers
6
Output Compare Channels
6
Input Capture Channels
6
32khz Rtc
Yes
Calibrated Rc Oscillator
No
- SAM9261 PDF datasheet
- SAM9261 PDF datasheet #2
- SAM9261 PDF datasheet #3
- SAM9G20 PDF datasheet #4
- SAM9G20 PDF datasheet #5
- Current page: 776 of 832
- Download datasheet (13Mb)
41.8
Table 41-24. Power-On-Reset Characteristics
41.8.1
41.8.2
776
Symbol
V
V
T
RES
th+
th-
Core Power Supply POR Characteristics
AT91SAM9G20
Power Sequence Requirements
Power-up Sequence
Parameter
Threshold Voltage Rising
Threshold Voltage Falling
Reset Time
The AT91SAM9G20 board design must comply with the power-up and power-down sequence
guidelines below to guarantee reliable operation of the device. Any deviation from these
sequences may lead to the following situations:
The power sequence described below is applicable to all the AT91SAM9G20 revisions. How-
ever, the power sequence can be simplified for the revision B device. In this revision, the over
consumption during the power-up phase has been limited to less than 200 mA. This current can
not damage the device and if it is acceptable for the final application, the power sequence
becomes VDDIO followed by VDDCORE. VDDIO must be established first (>0.7V) to ensure a
correct sampling of the BMS signal and also to guarantee the correct voltage level when access-
ing an external memory.
Figure 41-2. VDDCORE and VDDIO Constraints at Startup
• Excessive current consumption during the power-up phase which, in the worst case, can
• Prevent the device from booting.
result in irreversible damage to the device.
VDDCOREtyp
V th+ (0.5V)
Core Supply POR output
V oh (2.6V)
VDDIOtyp
VDD (V)
SLCK
0.7V
Conditions
Minimum Slope of +1.0V/100ms
<--------------------- T1--------------------->
<T2>
<T3>
<-------------T4----------->
Min
0.5
0.4
30
Typ
0.7
0.6
70
VDDIO > V oh
VDDCORE
6384E–ATARM–05-Feb-10
VDDIO
Max
0.89
0.85
130
t
Units
µs
V
V
Related parts for SAM9G20
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
INTERVAL AND WIPE/WASH WIPER CONTROL IC WITH DELAY
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
Low-Voltage Voice-Switched IC for Hands-Free Operation
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
MONOLITHIC INTEGRATED FEATUREPHONE CIRCUIT
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
AM-FM Receiver IC U4255BM-M
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
Monolithic Integrated Feature Phone Circuit
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
Multistandard Video-IF and Quasi Parallel Sound Processing
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
High-performance EE PLD
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
8-bit Flash Microcontroller
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
2-Wire Serial EEPROM
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
U6046BREAR WINDOW HEATING TIMER / LONG-TERM TIMER
Manufacturer:
ATMEL Corporation
Datasheet: