ATMEGA32A-MNR Atmel, ATMEGA32A-MNR Datasheet - Page 119

• Manufacturer Part Number: ATMEGA32A-MNR
• Description: IC MCU AVR 32K 16MHZ 44VQFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA32A-MNR

• 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-VFQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

17. 8-bit Timer/Counter2 with PWM and Asynchronous Operation
17.1
17.2
8155C–AVR–02/11
Features
Overview
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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
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