ATMEGA8L-8MU Atmel, ATMEGA8L-8MU Datasheet - Page 95

• Manufacturer Part Number: ATMEGA8L-8MU
• Description: IC AVR MCU 8K 8MHZ 3V 32-QFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA8L-8MU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 23
• Program Memory Size: 8KB (4K 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: 32-VQFN Exposed Pad, 32-HVQFN, 32-SQFN, 32-DHVQFN
• Package: 32MLF EP
• Device Core: AVR
• Family Name: ATmega
• Maximum Speed: 8 MHz
• Operating Supply Voltage: 3.3|5 V
• Data Bus Width: 8 Bit
• Number Of Programmable I/os: 23
• Interface Type: SPI/TWI/USART
• On-chip Adc: 8-chx10-bit
• Number Of Timers: 3
• Controller Family/series: AVR MEGA
• No. Of I/o's: 23
• Eeprom Memory Size: 512Byte
• Ram Memory Size: 1KB
• Cpu Speed: 8MHz
• Rohs Compliant: Yes
• For Use With: ATSTK600-TQFP32 - STK600 SOCKET/ADAPTER 32-TQFPATSTK600-DIP40 - STK600 SOCKET/ADAPTER 40-PDIP770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAGATAVRISP2 - PROGRAMMER AVR IN SYSTEMATSTK500 - PROGRAMMER AVR STARTER KIT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

2486Z–AVR–02/11
ing diagrams will be the same, but TOP should be replaced by BOTTOM, TOP-1 by BOTTOM+1
and so on. The same renaming applies for modes that set the TOV1 Flag at BOTTOM.
Figure 43. Timer/Counter Timing Diagram, no Prescaling
Figure 44
Figure 44. Timer/Counter Timing Diagram, with Prescaler (f
(PC and PFC PWM)
(PC and PFC PWM)
and ICFn
and ICFn
(CTC and FPWM)
(CTC and FPWM)
(Update at TOP)
TOVn
(Update at TOP)
TOVn
TCNTn
TCNTn
OCRnx
(clk
as TOP)
TCNTn
TCNTn
OCRnx
as TOP)
(clk
shows the same timing data, but with the prescaler enabled.
clk
clk
clk
clk
I/O
(FPWM)
I/O
(FPWM)
I/O
Tn
I/O
Tn
/8)
/1)
(if used
(if used
TOP - 1
TOP - 1
TOP - 1
TOP - 1
Old OCRnx Value
Old OCRnx Value
TOP
TOP
TOP
TOP
clk_I/O
BOTTOM
BOTTOM
TOP - 1
TOP - 1
/8)
New OCRnx Value
New OCRnx Value
ATmega8(L)
BOTTOM + 1
BOTTOM + 1
TOP - 2
TOP - 2
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