ATMEGA169L-8MI Atmel, ATMEGA169L-8MI Datasheet - Page 133

• Manufacturer Part Number: ATMEGA169L-8MI
• Description: IC MCU AVR 16K LV 8MHZ IND 64QFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA169L-8MI

• 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: 53
• 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: ATAVRISP2 - PROGRAMMER AVR IN SYSTEMATAVRBFLY - KIT EVALUATION AVR BUTTERFLYATSTK502 - MOD EXPANSION AVR STARTER 500
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: ATMEGA169L-4MI; ATMEGA169L-4MI

Timer/Counter Timing
Diagrams
2514H–AVR–05/03
•
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 59 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 59. Timer/Counter Timing Diagram, no Prescaling
Figure 60 shows the same timing data, but with the prescaler enabled.
Figure 60. Timer/Counter Timing Diagram, with Prescaler (f
Figure 61 shows the setting of OCF2A in all modes except CTC mode.
T2
TCNTn
(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
ATmega169V/L
clk_I/O
/8)
BOTTOM + 1
BOTTOM + 1
I/O
should
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