ATMEGA64A-ANR Atmel, ATMEGA64A-ANR Datasheet - Page 92
ATMEGA64A-ANR
Manufacturer Part Number
ATMEGA64A-ANR
Description
IC MCU AVR 64K FLASH 64TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheets
1.ATMEGA64A-MUR.pdf
(21 pages)
2.ATMEGA64A-AU.pdf
(392 pages)
3.ATMEGA64A-AU.pdf
(3 pages)
Specifications of ATMEGA64A-ANR
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
53
Program Memory Size
64KB (32K x 16)
Program Memory Type
FLASH
Eeprom Size
2K x 8
Ram Size
4K 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
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Manufacturer
Quantity
Price
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14. 8-bit Timer/Counter0 with PWM and Asynchronous Operation
14.1
14.2
8160C–AVR–07/09
Features
Overview
•
•
•
•
•
•
•
Timer/Counter0 is a general purpose, single-channel, 8-bit Timer/Counter module. A simplified
block diagram of the 8-bit Timer/Counter is shown in
I/O pins, refer to
and I/O pins, are shown in bold. The device-specific I/O Register and bit locations are listed in
the
Figure 14-1. 8-bit Timer/Counter Block Diagram.
Registers
Single Channel Counter
Clear Timer on Compare Match (Auto Reload)
Glitch-free, Phase Correct Pulse Width Modulator (PWM)
Frequency Generator
10-bit Clock Prescaler
Overflow and Compare Match Interrupt Sources (TOV0 and OCF0)
Allows Clocking from External 32 kHz Watch Crystal Independent of the I/O Clock
“Register Description” on page
Status Flags
“Pin Configuration” on page
Timer/Counter
TCNTn
OCRn
=
ASSRn
direction
count
clear
BOTTOM
Synchronized Status Flags
106.
= 0
Control Logic
=
TCCRn
TOP
Asynchronous Mode
0xFF
Select (ASn)
2. CPU accessible I/O Registers, including I/O bits
clk
Tn
Synchronization Unit
Figure
OCn
(Int. Req.)
Generation
Prescaler
Waveform
14-1. For the actual placement of
ATmega64A
Oscillator
T/C
clk
TOVn
(Int. Req.)
clk
clk
OCn
ASY
I/O
I/O
TOSC2
TOSC1
92
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