ATMEGA2560R231-CU Atmel, ATMEGA2560R231-CU Datasheet - Page 371

• Manufacturer Part Number: ATMEGA2560R231-CU
• Description: BUNDLE ATMEGA2560/RF231 PBGA
• Manufacturer: Atmel

Specifications of ATMEGA2560R231-CU

• 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-CBGA and 32-QFN
• 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

30.3
30.3.1
Table 30-1.
Notes:
30.3.2
30.4
2549M–AVR–09/10
Factory Calibration
User Calibration
Clock Characteristics
1. Voltage range for ATmega640V/1281V/1280V/2561V/2560V.
2. Voltage range for ATmega640/1281/1280/2561/2560.
External Clock Drive
Calibrated Internal RC Oscillator Accuracy
External Clock Drive Waveforms
Calibration Accuracy of Internal RC Oscillator
Figure 30-5. External Clock Drive Waveforms
Table 30-2.
7.3 MHz - 8.1 MHz
Symbol
1/t
Δ
t
t
t
t
t
CHCX
CLCX
CLCH
CHCL
CLCL
t
CLCL
CLCL
Frequency
8.0 MHz
Parameter
Oscillator
Frequency
Clock Period
High Time
Low Time
Rise Time
Fall Time
Change in period
from one clock
cycle to the next
External Clock Drive
V
IL1
V
IH1
1.8V - 5.5V
2.7V - 5.5V
ATmega640/1280/1281/2560/2561
V
V
3V
Min.
CC
500
200
200
CC
0
= 1.8V - 5.5V
(1)
(2)
Max.
2.0
2.0
2
2
V
Min.
CC
125
Temperature
50
50
-40°C - 85°C
0
= 2.7V - 5.5V
25°C
Max.
1.6
1.6
8
2
V
Min.
62.5
CC
25
25
0
Calibration Accuracy
= 4.5V - 5.5V
Max.
±10%
0.5
0.5
±1%
16
2
Units
MHz
ns
μs
%
371