ATMEGA48V-10MJ Atmel, ATMEGA48V-10MJ Datasheet - Page 95
![no-image](/images/manufacturer_photos/0/0/78/atmel_sml.jpg)
ATMEGA48V-10MJ
Manufacturer Part Number
ATMEGA48V-10MJ
Description
IC AVR MCU 4K 5V 10MHZ 32-QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA48V-10MJ
Core Processor
AVR
Core Size
8-Bit
Speed
10MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
23
Program Memory Size
4KB (2K x 16)
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
32-VQFN Exposed Pad, 32-HVQFN, 32-SQFN, 32-DHVQFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
ATMEGA48V-12MJ
ATMEGA48V-12MJ
ATMEGA48V-12MJ
- Current page: 95 of 378
- Download datasheet (8Mb)
14.7.3
2545S–AVR–07/10
Fast PWM Mode
the pin is set to output. The waveform generated will have a maximum frequency of f
f
equation:
The N variable represents the prescale factor (1, 8, 64, 256, or 1024).
As for the Normal mode of operation, the TOV0 Flag is set in the same timer clock cycle that the
counter counts from MAX to 0x00.
The fast Pulse Width Modulation or fast PWM mode (WGM02:0 = 3 or 7) 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 TOP then restarts from BOT-
TOM. TOP is defined as 0xFF when WGM2:0 = 3, and OCR0A when WGM2:0 = 7. In non-
inverting Compare Output mode, the Output Compare (OC0x) is cleared on the compare match
between TCNT0 and OCR0x, and set at BOTTOM. In inverting Compare Output mode, the out-
put 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 use 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 TOP value.
The counter is then cleared at the following timer clock cycle. The timing diagram for the fast
PWM mode is shown in
togram for illustrating the single-slope operation. The diagram includes non-inverted and
inverted PWM outputs. The small horizontal line marks on the TCNT0 slopes represent compare
matches between OCR0x and TCNT0.
Figure 14-6. Fast PWM Mode, Timing Diagram
The Timer/Counter Overflow Flag (TOV0) is set each time the counter reaches TOP. If the inter-
rupt is enabled, the interrupt handler routine can be used for updating the compare value.
clk_I/O
/2 when OCR0A is set to zero (0x00). The waveform frequency is defined by the following
TCNTn
OCn
OCn
Period
1
Figure
2
14-6. The TCNT0 value is in the timing diagram shown as a his-
3
f
OCnx
=
4
------------------------------------------------- -
2 N
⋅
⋅
5
(
f
clk_I/O
1
+
OCRnx
6
)
ATmega48/88/168
7
OCRnx Interrupt Flag Set
OCRnx Update and
TOVn Interrupt Flag Set
(COMnx1:0 = 2)
(COMnx1:0 = 3)
OC0
95
=
Related parts for ATMEGA48V-10MJ
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![ATMEGA48V-10AI](/photos/6/91/69154/313-32-tqfp_tmb.jpg)
Part Number:
Description:
IC AVR MCU 4K 5V 10MHZ 32-TQFP
Manufacturer:
Atmel
Datasheet:
![ATMEGA48V-10MU](/photos/12/13/121308/atmega48v-10mu_tmb.jpg)
Part Number:
Description:
IC AVR MCU 4K 10MHZ 1.8V 32-QFN
Manufacturer:
Atmel
Datasheet:
![ATMEGA48V-10PU](/photos/7/21/72189/453-28-dip_tmb.jpg)
Part Number:
Description:
IC AVR MCU 4K 10MHZ 1.8V 28DIP
Manufacturer:
Atmel
Datasheet:
![ATMEGA48V-10MMU](/photos/12/32/123209/28m1-vqfn_tmb.jpg)
Part Number:
Description:
MCU AVR 4K FLASH 10MHZ 28-QFN
Manufacturer:
Atmel
Datasheet:
![ATMEGA48V-10AJ](/photos/6/91/69154/313-32-tqfp_tmb.jpg)
Part Number:
Description:
IC AVR MCU 4K 5V 10MHZ 32-TQFP
Manufacturer:
Atmel
Datasheet:
![ATMEGA48V-10MI](/images/manufacturer_photos/0/0/78/atmel_tmb.jpg)
Part Number:
Description:
IC AVR MCU 4K 5V 12MHZ 32-QFN
Manufacturer:
Atmel
Datasheet:
![ATMEGA48V-10PI](/photos/7/21/72189/453-28-dip_tmb.jpg)
Part Number:
Description:
IC AVR MCU 4K 5V 10MHZ 28-DIP
Manufacturer:
Atmel
Datasheet:
![ATMEGA48V-10PJ](/photos/7/21/72189/453-28-dip_tmb.jpg)
Part Number:
Description:
IC AVR MCU 4K 5V 10MHZ 28-DIP
Manufacturer:
Atmel
Datasheet:
![ATMEGA48V-10AUR](/images/manufacturer_photos/0/0/78/atmel_tmb.jpg)
Part Number:
Description:
MCU AVR 4KB FLASH 10MHZ 32TQFP
Manufacturer:
Atmel
Datasheet:
![ATMEGA48V-10MUR](/images/manufacturer_photos/0/0/78/atmel_tmb.jpg)
Part Number:
Description:
MCU AVR 4KB FLASH 10MHZ 32QFN
Manufacturer:
Atmel
Datasheet:
![ATMEGA48V-10MMH](/photos/12/32/123209/28m1-vqfn_tmb.jpg)
Part Number:
Description:
MCU AVR 4KB FLASH 20MHZ 28QFN
Manufacturer:
Atmel
Datasheet: