ATMEGA32A-ANR Atmel, ATMEGA32A-ANR Datasheet - Page 119
![IC MCU AVR 32K FLASH 44TQFP](/photos/6/70/67042/313-44-tqfp_sml.jpg)
ATMEGA32A-ANR
Manufacturer Part Number
ATMEGA32A-ANR
Description
IC MCU AVR 32K FLASH 44TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheet
1.ATMEGA32A-MU.pdf
(353 pages)
Specifications of ATMEGA32A-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
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 ~ 85°C
Package / Case
44-TQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Manufacturer
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17. 8-bit Timer/Counter2 with PWM and Asynchronous Operation
17.1
17.2
8155C–AVR–02/11
Features
Overview
•
•
•
•
•
•
•
Timer/Counter2 is a general purpose, single compare unit, 8-bit Timer/Counter module. A simpli-
fied block diagram of the 8-bit Timer/Counter is shown in
of I/O pins, refer to
bits and I/O pins, are shown in bold. The device-specific I/O Register and bit locations are listed
in the
Figure 17-1. 8-bit Timer/Counter Block Diagram
Single Compare unit 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 (TOV2 and OCF2)
Allows clocking from External 32kHz Watch Crystal Independent of the I/O Clock
“Register Description” on page
Status flags
Timer/Counter
TCNTn
OCRn
“Pinout ATmega32A” on page
=
ASSRn
direction
count
clear
BOTTOM
Synchronized Status flags
= 0
132.
Control Logic
=
TCCRn
TOP
asynchronous mode
0xFF
select (ASn)
2. CPU accessible I/O Registers, including I/O
clk
Tn
Synchronization Unit
OCn
(Int.Req.)
Generation
Prescaler
Waveform
Figure
17-1. For the actual placement
ATmega32A
Oscillator
T/C
clk
TOVn
(Int.Req.)
clk
clk
OCn
ASY
I/O
I/O
TOSC1
TOSC2
119
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