ATMEGA128RFA1-ZU Atmel, ATMEGA128RFA1-ZU Datasheet - Page 42
ATMEGA128RFA1-ZU
Manufacturer Part Number
ATMEGA128RFA1-ZU
Description
IC AVR MCU 2.4GHZ XCEIVER 64QFN
Manufacturer
Atmel
Series
ATMEGAr
Datasheets
1.ATMEGA128-16AU.pdf
(385 pages)
2.ATAVR128RFA1-EK1.pdf
(13 pages)
3.ATAVR128RFA1-EK1.pdf
(555 pages)
4.ATMEGA128RFA1-ZU.pdf
(524 pages)
Specifications of ATMEGA128RFA1-ZU
Frequency
2.4GHz
Data Rate - Maximum
2Mbps
Modulation Or Protocol
802.15.4 Zigbee
Applications
General Purpose
Power - Output
3.5dBm
Sensitivity
-100dBm
Voltage - Supply
1.8 V ~ 3.6 V
Current - Receiving
12.5mA
Current - Transmitting
14.5mA
Data Interface
PCB, Surface Mount
Memory Size
128kB Flash, 4kB EEPROM, 16kB RAM
Antenna Connector
PCB, Surface Mount
Operating Temperature
-40°C ~ 85°C
Package / Case
64-VFQFN, Exposed Pad
Rf Ic Case Style
QFN
No. Of Pins
64
Supply Voltage Range
1.8V To 3.6V
Operating Temperature Range
-40°C To +85°C
Svhc
No SVHC (15-Dec-2010)
Rohs Compliant
Yes
Processor Series
ATMEGA128x
Core
AVR8
Data Bus Width
8 bit
Program Memory Type
Flash
Program Memory Size
128 KB
Data Ram Size
16 KB
Interface Type
JTAG
Maximum Clock Frequency
16 MHz
Number Of Programmable I/os
38
Number Of Timers
6
Operating Supply Voltage
1.8 V to 3.6 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWAVR, EWAVR-BL
Development Tools By Supplier
ATAVR128RFA1-EK1
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ATMEGA128RFA1-ZU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Company:
Part Number:
ATMEGA128RFA1-ZUR
Manufacturer:
ON
Quantity:
56 000
- ATMEGA128-16AU PDF datasheet
- ATAVR128RFA1-EK1 PDF datasheet #2
- ATAVR128RFA1-EK1 PDF datasheet #3
- ATMEGA128RFA1-ZU PDF datasheet #4
- Current page: 42 of 385
- Download datasheet (8Mb)
External Clock
42
ATmega128
to the register gives the highest available frequency. The calibrated Oscillator is used to time
EEPROM and Flash access. If EEPROM or Flash is written, do not calibrate to more than 10%
above the nominal frequency. Otherwise, the EEPROM or Flash write may fail. Note that the
Oscillator is intended for calibration to 1.0MHz, 2.0MHz, 4.0MHz, or 8.0MHz. Tuning to other
values is not guaranteed, as indicated in
Table 15. Internal RC Oscillator Frequency Range.
To drive the device from an external clock source, XTAL1 should be driven as shown in
21. To run the device on an external clock, the CKSEL fuses must be programmed to “0000”. By
programming the CKOPT fuse, the user can enable an internal 36 pF capacitor between XTAL1
and GND.
Figure 21. External Clock Drive Configuration
When this clock source is selected, start-up times are determined by the SUT fuses as shown in
Table
Table 16. Start-up Times for the External Clock Selection
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. It is required to ensure that the
MCU is kept in Reset during such changes in the clock frequency.
SUT1..0
OSCCAL Value
00
01
10
11
16.
$00
$7F
$FF
Start-up Time from Power-
down and Power-save
Min Frequency in Percentage of
6 CK
6 CK
6 CK
Nominal Frequency (%)
100
50
75
EXTERNAL
SIGNAL
CLOCK
Additional Delay from
Table
Reset (V
Reserved
15.
4.1ms
65ms
–
CC
= 5.0V)
Max Frequency in Percentage of
Nominal Frequency (%)
Recommended Usage
BOD enabled
Fast rising power
Slowly rising power
100
150
200
2467V–AVR–02/11
Figure
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