ATMEGA48A-MMHR Atmel, ATMEGA48A-MMHR Datasheet - Page 95
![IC MCU AVR 4K FLASH 28QFN](/photos/12/32/123209/28m1-vqfn_sml.jpg)
ATMEGA48A-MMHR
Manufacturer Part Number
ATMEGA48A-MMHR
Description
IC MCU AVR 4K FLASH 28QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheet
1.ATMEGA48A-MMHR.pdf
(566 pages)
Specifications of ATMEGA48A-MMHR
Package / Case
28-VQFN Exposed Pad, 28-HVQFN, 28-SQFN, 28-DHVQFN
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Speed
20MHz
Number Of I /o
23
Eeprom Size
256 x 8
Core Processor
AVR
Program Memory Type
FLASH
Ram Size
512 x 8
Program Memory Size
4KB (4K x 8)
Data Converters
A/D 8x10b
Oscillator Type
Internal
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Connectivity
I²C, SPI, UART/USART
Core Size
8-Bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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14. 8-bit Timer/Counter0 with PWM
14.1
14.2
8271C–AVR–08/10
Features
Overview
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•
•
•
•
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Timer/Counter0 is a general purpose 8-bit Timer/Counter module, with two independent Output
Compare Units, and with PWM support. It allows accurate program execution timing (event man-
agement) and wave generation.
A simplified block diagram of the 8-bit Timer/Counter is shown in
placement of I/O pins, refer to
page
device-specific I/O Register and bit locations are listed in the
107.
The PRTIM0 bit in
enable Timer/Counter0 module.
ATmega48A/48PA/88A/88PA/168A/168PA/328/328
Two Independent Output Compare Units
Double Buffered Output Compare Registers
Clear Timer on Compare Match (Auto Reload)
Glitch Free, Phase Correct Pulse Width Modulator (PWM)
Variable PWM Period
Frequency Generator
Three Independent Interrupt Sources (TOV0, OCF0A, and OCF0B)
2. CPU accessible I/O Registers, including I/O bits and I/O pins, are shown in bold. The
”Minimizing Power Consumption” on page 42
”Pinout ATmega48A/48PA/88A/88PA/168A/168PA/328/328P” on
”Register Description” on page
Figure
must be written to zero to
14-1. For the actual
95
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