ATMEGA128RFA1-ZU Atmel, ATMEGA128RFA1-ZU Datasheet - Page 361
![IC AVR MCU 2.4GHZ XCEIVER 64QFN](/photos/12/13/121326/313-64-qfn_sml.jpg)
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: 361 of 555
- Download datasheet (6Mb)
23.10.5 UBRR0H – USART0 Baud Rate Register High Byte
23.10.6 UBRR0L – USART0 Baud Rate Register Low Byte
23.10.7 UDR1 – USART1 I/O Data Register
8266B-MCU Wireless-03/11
UBRR0 is a 12-bit register which contains the USART baud rate. The UBRR0H
contains the four most significant bits, and the UBRR0L contains the eight least
significant bits of the USART baud rate. Ongoing transmissions by the Transmitter and
Receiver will be corrupted if the baud rate is changed. Writing UBRR0L will trigger an
immediate update of the baud rate prescaler.
• Bit 7:4 – Res3:0 - Reserved Bit
This bit is reserved for future use. A read access always will return zero. A write access
does not modify the content.
• Bit 3:0 – UBRR11:8 - USART Baud Rate Register
These bits represent bits [11:8] of the Baud Rate Register. Sample values for
commonly used clock frequencies can be found in section "Examples of Baud Rate
Setting".
UBRR0 is a 12-bit register which contains the USART baud rate. The UBRR0H
contains the four most significant bits, and the UBRR0L contains the eight least
significant bits of the USART baud rate. Ongoing transmissions by the Transmitter and
Receiver will be corrupted if the baud rate is changed. Writing UBRR0L will trigger an
immediate update of the baud rate prescaler.
• Bit 7:0 – UBRR7:0 - USART Baud Rate Register
These bits represent bits [7:0] of the Baud Rate Register. Sample values for commonly
used clock frequencies can be found in section "Examples of Baud Rate Setting".
The USART Transmit Data Buffer Register and USART Receive Data Buffer Registers
share the same I/O address referred to as USART Data Register or UDR1. The
Transmit Data Buffer Register (TXB) will be the destination for data written to the UDR1
Register location. Reading the UDR1 Register location will return the contents of the
Bit
NA ($C5)
Read/Write
Initial Value
Bit
NA ($C4)
Read/Write
Initial Value
Bit
NA ($CE)
Read/Write
Initial Value
UBRR7
RW
Res3
RW
7
0
R
7
0
7
0
RW
UBRR6
6
0
Res2
RW
R
6
0
6
0
RW
5
0
UBRR5
Res1
RW
R
5
0
5
0
RW
4
0
UDR17:10
UBRR4
Res0
RW
R
4
0
4
0
RW
3
0
UBRR11 UBRR10
UBRR3
RW
RW
3
0
3
0
RW
2
0
ATmega128RFA1
UBRR2
RW
RW
2
0
2
0
RW
1
0
UBRR9
UBRR1
RW
RW
RW
1
0
1
0
0
0
UBRR8
UBRR0
RW
RW
0
0
0
0
UDR1
UBRR0H
UBRR0L
361
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