ATMEGA164P-20AQ Atmel, ATMEGA164P-20AQ Datasheet - Page 149

• Manufacturer Part Number: ATMEGA164P-20AQ
• Description: MCU AVR 16K FLASH 20MHZ 44-TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA164P-20AQ

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 32
• 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: 44-TQFP, 44-VQFP
• For Use With: ATSTK600-TQFP44 - STK600 SOCKET/ADAPTER 44-TQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

8011O–AVR–07/10
Figure 14-8. Timer/Counter Timing Diagram, no Prescaling
Figure 14-9 on page 149
Figure 14-9. Timer/Counter Timing Diagram, with Prescaler (f
Figure 14-10 on page 149
Figure 14-10. Timer/Counter Timing Diagram, Setting of OCF2A, with Prescaler (f
TCNTn
TCNTn
(clk
(clk
TOVn
TOVn
TCNTn
clk
clk
(clk
clk
clk
OCRnx
OCFnx
clk
clk
I/O
I/O
I/O
I/O
Tn
Tn
I/O
/1)
/8)
I/O
Tn
/8)
MAX - 1
OCRnx - 1
MAX - 1
shows the same timing data, but with the prescaler enabled.
shows the setting of OCF2A in all modes except CTC mode.
OCRnx
MAX
MAX
OCRnx Value
ATmega164P/324P/644P
OCRnx + 1
BOTTOM
BOTTOM
clk_I/O
/8)
BOTTOM + 1
BOTTOM + 1
OCRnx + 2
clk_I/O
/8)
149