ATMEGA64RZAV-10MU Atmel, ATMEGA64RZAV-10MU Datasheet - Page 145
![MCU ATMEGA644/AT86RF230 44-QFN](/photos/12/13/121316/313-44-qfn_sml.jpg)
ATMEGA64RZAV-10MU
Manufacturer Part Number
ATMEGA64RZAV-10MU
Description
MCU ATMEGA644/AT86RF230 44-QFN
Manufacturer
Atmel
Series
ATMEGAr
Datasheets
1.ATMEGA644-20MU.pdf
(23 pages)
2.ATMEGA644-20MU.pdf
(376 pages)
3.AT86RF230-ZU.pdf
(98 pages)
Specifications of ATMEGA64RZAV-10MU
Frequency
2.4GHz
Modulation Or Protocol
802.15.4 Zigbee
Power - Output
3dBm
Sensitivity
-101dBm
Voltage - Supply
1.8 V ~ 3.6 V
Data Interface
PCB, Surface Mount
Memory Size
64kB Flash, 2kB EEPROM, 4kB RAM
Antenna Connector
PCB, Surface Mount
Package / Case
44-VFQFN Exposed Pad
Wireless Frequency
2.4 GHz
Interface Type
JTAG, SPI
Output Power
3 dBm
For Use With
ATSTK600-TQFP32 - STK600 SOCKET/ADAPTER 32-TQFP770-1005 - ISP 4PORT FOR ATMEL AVR MCU JTAG770-1004 - ISP 4PORT FOR ATMEL AVR MCU SPIATAVRISP2 - PROGRAMMER AVR IN SYSTEMATJTAGICE2 - AVR ON-CHIP D-BUG SYSTEMATSTK500 - PROGRAMMER AVR STARTER KIT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Operating Temperature
-
Applications
-
Data Rate - Maximum
-
Current - Transmitting
-
Current - Receiving
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
For Use With/related Products
ATmega64
- Current page: 145 of 376
- Download datasheet (8Mb)
15.10 Timer/Counter Prescaler
2593N–AVR–07/10
Figure 15-12. Prescaler for Timer/Counter2
The clock source for Timer/Counter2 is named clk
system I/O clock clk
clocked from the TOSC1 pin. This enables use of Timer/Counter2 as a Real Time Counter
(RTC). When AS2 is set, pins TOSC1 and TOSC2 are disconnected from Port C. A crystal can
then be connected between the TOSC1 and TOSC2 pins to serve as an independent clock
source for Timer/Counter2. The Oscillator is optimized for use with a 32.768 kHz crystal. By set-
ting the EXCLK bit in the ASSR, a 32 kHz external clock can be applied. See
Asynchronous Status Register” on page 150
For Timer/Counter2, the possible prescaled selections are: clk
clk
Setting the PSRASY bit in GTCCR resets the prescaler. This allows the user to operate with a
predictable prescaler.
T2S
/128, clk
PSRASY
TOSC1
clk
CS20
CS21
CS22
AS2
I/O
T2S
/256, and clk
IO
. By setting the AS2 bit in ASSR, Timer/Counter2 is asynchronously
clk
T2S
T2S
/1024. Additionally, clk
Clear
for details.
TIMER/COUNTER2 CLOCK SOURCE
T2S
0
. clk
10-BIT T/C PRESCALER
T2S
T2S
clk
as well as 0 (stop) may be selected.
T2
is by default connected to the main
T2S
/8, clk
ATmega644
T2S
/32, clk
”ASSR –
T2S
/64,
145
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