ATMEGA169V-8MU Atmel, ATMEGA169V-8MU Datasheet - Page 88
![no-image](/images/manufacturer_photos/0/0/78/atmel_sml.jpg)
ATMEGA169V-8MU
Manufacturer Part Number
ATMEGA169V-8MU
Description
IC AVR MCU 16K 8MHZ 1.8V 64-QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA169V-8MU
Core Processor
AVR
Core Size
8-Bit
Speed
8MHz
Connectivity
SPI, UART/USART, USI
Peripherals
Brown-out Detect/Reset, LCD, POR, PWM, WDT
Number Of I /o
54
Program Memory Size
16KB (8K x 16)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-MLF®, 64-QFN
For Use With
ATAVRBFLY - KIT EVALUATION AVR BUTTERFLYATSTK502 - MOD EXPANSION AVR STARTER 500
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Timer/Counter Timing
Diagrams
88
ATmega169/V
•
The Timer/Counter is a synchronous design and the timer clock (clk
shown as a clock enable signal in the following figures. The figures include information
on when Interrupt Flags are set. Figure 34 contains timing data for basic Timer/Counter
operation. The figure shows the count sequence close to the MAX value in all modes
other than phase correct PWM mode.
Figure 34. Timer/Counter Timing Diagram, no Prescaling
Figure 35 shows the same timing data, but with the prescaler enabled.
Figure 35. Timer/Counter Timing Diagram, with Prescaler (f
Figure 36 shows the setting of OCF0A in all modes except CTC mode.
Figure 36. Timer/Counter Timing Diagram, Setting of OCF0A, with Prescaler (f
TCNTn
TCNTn
TCNTn
(clk
(clk
(clk
TOVn
TOVn
OCRnx
OCFnx
clk
clk
clk
clk
clk
clk
I/O
I/O
I/O
The timer starts counting from a value higher than the one in OCR0A, and for that
reason misses the Compare Match and hence the OCn change that would have
happened on the way up.
I/O
Tn
I/O
Tn
I/O
Tn
/1)
/8)
/8)
OCRnx - 1
MAX - 1
MAX - 1
OCRnx
MAX
MAX
OCRnx Value
OCRnx + 1
BOTTOM
BOTTOM
clk_I/O
/8)
T0
) is therefore
2514P–AVR–07/06
BOTTOM + 1
BOTTOM + 1
OCRnx + 2
clk_I/O
/8)
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