ATMEGA2560R231-AU Atmel, ATMEGA2560R231-AU Datasheet - Page 48
ATMEGA2560R231-AU
Manufacturer Part Number
ATMEGA2560R231-AU
Description
BUNDLE ATMEGA2560/RF231 TQFP
Manufacturer
Atmel
Datasheet
1.ATMEGA640V-8CU.pdf
(444 pages)
Specifications of ATMEGA2560R231-AU
Frequency
2.4GHz
Modulation Or Protocol
802.15.4 Zigbee, 6LoWPAN, RF4CE, SP100, WirelessHART™, ISM
Data Interface
PCB, Surface Mount
Memory Size
256kB Flash, 4kB EEPROM, 8kB RAM
Antenna Connector
PCB, Surface Mount
Package / Case
100-TFBGA
Processor Series
ATMEGA256x
Core
AVR8
Data Bus Width
8 bit
Program Memory Type
Flash
Program Memory Size
256 KB
Data Ram Size
8 KB
Development Tools By Supplier
ATAVRRZ541, ATAVRRAVEN, ATAVRRZRAVEN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Voltage - Supply
-
Power - Output
-
Operating Temperature
-
Applications
-
Sensitivity
-
Data Rate - Maximum
-
Current - Transmitting
-
Current - Receiving
-
Lead Free Status / Rohs Status
Details
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9.9
2549M–AVR–09/10
External Clock
When this clock source is selected, start-up times are determined by the SUT Fuses as shown in
Table
Table 9-12.
To drive the device from an external clock source, XTAL1 should be driven as shown in
9-4. To run the device on an external clock, the CKSEL Fuses must be programmed to “0000”.
Figure 9-4.
When this clock source is selected, start-up times are determined by the SUT Fuses as shown in
Table 9-15 on page
Table 9-13.
Table 9-14.
When applying an external clock, it is required to avoid sudden changes in the applied clock fre-
quency to ensure stable operation of the MCU. A variation in frequency of more than 2% from
one clock cycle to the next can lead to unpredictable behavior. If changes of more than 2% is
required, ensure that the MCU is kept in Reset during the changes.
Slowly rising power
Slowly rising power
Power Conditions
Power Conditions
Fast rising power
Fast rising power
9-12.
BOD enabled
BOD enabled
Start-up Times for the 128 kHz Internal Oscillator
External Clock Drive Configuration
Crystal Oscillator Clock Frequency
Start-up Times for the External Clock Selection
Nominal Frequency
51.
0 - 16 MHz
EXTERNAL
Start-up Time from Power-
Start-up Time from Power-
SIGNAL
CLOCK
down and Power-save
down and Power-save
ATmega640/1280/1281/2560/2561
NC
Reserved
Reserved
6 CK
6 CK
6 CK
6 CK
6 CK
6 CK
XTAL2
XTAL1
GND
Additional Delay from
Additional Delay from
Reset (V
14CK + 4.1 ms
14CK + 64 ms
14CK + 65 ms
14CK + 4 ms
Reset
14CK
14CK
CC
CKSEL3:0
= 5.0V)
0000
SUT1:0
SUT1:0
00
01
10
11
Figure
00
01
10
11
48
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