ATMEGA324P-15MZ Atmel, ATMEGA324P-15MZ Datasheet - Page 92
![MCU AVR 32K FLASH 15MHZ 44-QFN](/photos/12/13/121316/313-44-qfn_sml.jpg)
ATMEGA324P-15MZ
Manufacturer Part Number
ATMEGA324P-15MZ
Description
MCU AVR 32K FLASH 15MHZ 44-QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA324P-15MZ
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
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)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
44-VQFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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13. 8-bit Timer/Counter0 with PWM
13.1
13.2
13.2.1
92
Features
Overview
ATmega164P/324P/644P
Registers
•
•
•
•
•
•
•
Timer/Counter0 is a general purpose 8-bit Timer/Counter module, with two independent Output
Compare Units, and with PWM support. It allows accurate program execution timing (event man-
agement) and wave generation.
A simplified block diagram of the 8-bit Timer/Counter is shown in
placement of I/O pins, see
ing I/O bits and I/O pins, are shown in bold. The device-specific I/O Register and bit locations
are listed in the
Figure 13-1. 8-bit Timer/Counter Block Diagram
The Timer/Counter (TCNT0) and Output Compare Registers (OCR0A and OCR0B) are 8-bit
registers. Interrupt request (abbreviated to Int.Req. in the figure) signals are all visible in the
Timer Interrupt Flag Register (TIFR0). All interrupts are individually masked with the Timer Inter-
rupt Mask Register (TIMSK0). TIFR0 and TIMSK0 are not shown in the figure.
Two Independent Output Compare Units
Double Buffered Output Compare Registers
Clear Timer on Compare Match (Auto Reload)
Glitch Free, Phase Correct Pulse Width Modulator (PWM)
Variable PWM Period
Frequency Generator
Three Independent Interrupt Sources (TOV0, OCF0A, and OCF0B)
“Register Description” on page
Timer/Counter
“Pin Configurations” on page
TCCRnA
OCRnA
TCNTn
OCRnB
=
=
Direction
Count
Clear
Control Logic
TOP
=
TCCRnB
Value
103.
BOTTOM
Fixed
TOP
clk
=
Tn
0
2. CPU accessible I/O Registers, includ-
OCnA
(Int.Req.)
OCnB
(Int.Req.)
TOVn
(Int.Req.)
Clock Select
Generation
Generation
Waveform
Waveform
( From Prescaler )
Detector
Edge
Figure
13-1. For the actual
OCnA
OCnB
Tn
7674F–AVR–09/09
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