ATMEGA169-16MI Atmel, ATMEGA169-16MI Datasheet - Page 133

• Manufacturer Part Number: ATMEGA169-16MI
• Description: IC AVR MCU 16K 16MHZ IND 64-QFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA169-16MI

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• 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): 2.7 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: Contains lead / RoHS non-compliant

Timer/Counter Timing
Diagrams
2514P–AVR–07/06
•
The following figures show the Timer/Counter in synchronous mode, and the timer clock
(clk
be replaced by the Timer/Counter Oscillator clock. The figures include information on
when Interrupt Flags are set. Figure 60 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 60. Timer/Counter Timing Diagram, no Prescaling
Figure 61 shows the same timing data, but with the prescaler enabled.
Figure 61. Timer/Counter Timing Diagram, with Prescaler (f
Figure 62 shows the setting of OCF2A in all modes except CTC mode.
TCNTn
T2
(clk
TCNTn
(clk
The timer starts counting from a value higher than the one in OCR2A, and for that
reason misses the Compare Match and hence the OCn change that would have
happened on the way up.
TOVn
TOVn
clk
clk
clk
clk
) is therefore shown as a clock enable signal. In asynchronous mode, clk
I/O
I/O
I/O
Tn
I/O
Tn
/1)
/8)
MAX - 1
MAX - 1
MAX
MAX
BOTTOM
BOTTOM
clk_I/O
ATmega169/V
/8)
BOTTOM + 1
BOTTOM + 1
I/O
should
133