ATMEGA32-16PU Atmel, ATMEGA32-16PU Datasheet - Page 118
![IC AVR MCU 32K 16MHZ 5V 40DIP](/photos/6/70/67049/453-40-dip_sml.jpg)
ATMEGA32-16PU
Manufacturer Part Number
ATMEGA32-16PU
Description
IC AVR MCU 32K 16MHZ 5V 40DIP
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheets
1.ATMEGA32L-8AU.pdf
(21 pages)
2.ATMEGA32L-8AU.pdf
(346 pages)
3.ATMEGA32-16PU.pdf
(345 pages)
Specifications of ATMEGA32-16PU
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)
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)
Processor Series
ATMEGA32x
Core
AVR8
Data Bus Width
8 bit
Data Ram Size
2 KB
Interface Type
2-Wire/SPI/USART
Maximum Clock Frequency
16 MHz
Number Of Programmable I/os
32
Number Of Timers
3
Operating Supply Voltage
4.5 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
Through Hole
3rd Party Development Tools
EWAVR, EWAVR-BL
Development Tools By Supplier
ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT
Minimum Operating Temperature
- 40 C
On-chip Adc
8-ch x 10-bit
A/d Inputs
8-Channel, 10-Bit
Cpu Speed
16 MIPS
Eeprom Memory
1K Bytes
Input Output
32
Interface
2-Wire/SPI/USART
Memory Type
Flash
Number Of Bits
8
Package Type
40-pin PDIP
Programmable Memory
32K Bytes
Timers
2-8-bit, 1-16-bit
Voltage, Range
4.5-5.5 V
Data Rom Size
1024 B
Height
4.83 mm
Length
52.58 mm
Supply Voltage (max)
5.5 V
Supply Voltage (min)
4.5 V
Width
13.97 mm
Controller Family/series
AVR MEGA
No. Of I/o's
32
Eeprom Memory Size
1024Byte
Ram Memory Size
2KB
Rohs Compliant
Yes
For Use With
ATSTK524 - KIT STARTER ATMEGA32M1/MEGA32C1ATSTK600-TQFP32 - STK600 SOCKET/ADAPTER 32-TQFPATSTK600-TQFP44 - STK600 SOCKET/ADAPTER 44-TQFPATSTK600-DIP40 - STK600 SOCKET/ADAPTER 40-PDIP770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAGATAVRDRAGON - KIT DRAGON 32KB FLASH MEM AVRATAVRISP2 - PROGRAMMER AVR IN SYSTEMATJTAGICE2 - AVR ON-CHIP D-BUG SYSTEMATSTK500 - PROGRAMMER AVR STARTER KIT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ATMEGA32-16PU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
- Current page: 118 of 345
- Download datasheet (3Mb)
Fast PWM Mode
118
ATmega32(L)
quency of f
defined by the following equation:
The N variable represents the prescale factor (1, 8, 32, 64, 128, 256, or 1024).
As for the Normal mode of operation, the
that the counter counts from MAX to 0x00.
The fast Pulse Width Modulation or fast PWM mode (WGM21:0 = 3) provides a high fre-
quency PWM waveform generation option. The fast PWM differs from the other PWM
option by its single-slope operation. The counter counts from BOTTOM to MAX then
restarts from BOTTOM. In non-inverting Compare Output mode, the Output Compare
(OC2) is cleared on the compare match between TCNT2 and OCR2, and set at BOT-
TOM. In inverting Compare Output mode, the output is set on compare match and
cleared at BOTTOM. Due to the single-slope operation, the operating frequency of the
fast PWM mode can be twice as high as the phase correct PWM mode that uses dual-
slope operation. This high frequency makes the fast PWM mode well suited for power
regulation, rectification, and DAC applications. High frequency allows physically small
sized external components (coils, capacitors), and therefore reduces total system cost.
In fast PWM mode, the counter is incremented until the counter value matches the MAX
value. The counter is then cleared at the following timer clock cycle. The timing diagram
for the fast PWM mode is shown in Figure 58. The TCNT2 value is in the timing diagram
shown as a histogram for illustrating the single-slope operation. The diagram includes
non-inverted and inverted PWM outputs. The small horizontal line marks on the TCNT2
slopes represent compare matches between OCR2 and TCNT2.
Figure 58. Fast PWM Mode, Timing Diagram
The Timer/Counter Overflow Flag (
the interrupt is enabled, the interrupt handler routine can be used for updating the com-
pare value.
In fast PWM mode, the compare unit allows generation of PWM waveforms on the OC2
pin. Setting the COM21:0 bits to 2 will produce a non-inverted PWM and an inverted
PWM output can be generated by setting the COM21:0 to 3 (see Table 52 on page 124).
The actual OC2 value will only be visible on the port pin if the data direction for the port
TCNTn
OCn
OCn
Period
OC2
= f
1
clk_I/O
/2 when OCR2 is set to zero (0x00). The waveform frequency is
2
3
f
OCn
TOV2
=
4
---------------------------------------------- -
2 N
⋅
) is set each time the counter reaches MAX. If
TOV2
⋅
5
f
(
clk_I/O
1
Flag is set in the same timer clock cycle
+
OCRn
6
)
7
OCRn Interrupt Flag Set
OCRn Update and
TOVn Interrupt Flag Set
(COMn1:0 = 2)
(COMn1:0 = 3)
2503G–AVR–11/04
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