ATMEGA323-8PI Atmel, ATMEGA323-8PI Datasheet - Page 45

• Manufacturer Part Number: ATMEGA323-8PI
• Description: IC AVR MCU 32K 8MHZ IND 40DIP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA323-8PI

• 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: 32
• Program Memory Size: 32KB (16K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 1K x 8
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 40-DIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: ATMEGA3238PI

8-bit Timers/Counters
Timer/Counter0 and
Timer/Counter2
1457G–AVR–09/03
Figure 32 shows the block diagram for Timer/Counter0. Figure 33 shows the block dia-
gram for Timer/Counter2.
Figure 32. Timer/Counter0 Block Diagram
7
7
7
TIMER/COUNTER0
8-BIT COMPARATOR
OUTPUT COMPARE
REGISTER0 (OCR0)
REGISTER (TIMSK)
TIMER INT. MASK
(TCNT0)
T/C0 COMPARE
0
0
0
MATCH IRQ
T/C CLEAR
T/C CLK SOURCE
UP/DOWN
REGISTER (TIFR)
TIMER INT. FLAG
T/C0 OVER-
FLOW IRQ
REGISTER (TCCR0)
T/C0 CONTROL
CONTROL
LOGIC
ATmega323(L)
SPECIAL FUNCTIONS
IO REGISTER (SFIOR)
CK
T0
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