ATMEGA128A-MU Atmel, ATMEGA128A-MU Datasheet - Page 148

• Manufacturer Part Number: ATMEGA128A-MU
• Description: MCU 8BIT 128K ISP FLASH 64-QFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA128A-MU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: EBI/EMI, I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 53
• Program Memory Size: 128KB (64K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 4K x 8
• Ram Size: 4K 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: 64-MLF®, 64-QFN
• Processor Series: ATMEGA128x
• Core: AVR8
• 3rd Party Development Tools: EWAVR, EWAVR-BL
• Development Tools By Supplier: ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT
• Controller Family/series: AVR MEGA
• No. Of I/o's: 53
• Eeprom Memory Size: 4KB
• Ram Memory Size: 4KB
• Cpu Speed: 16MHz
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

17. 8-bit Timer/Counter2 with PWM
17.1
17.2
8151H–AVR–02/11
Features
Overview
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Timer/Counter2 is a general purpose, single channel, 8-bit Timer/Counter module. A simplified
block diagram of the 8-bit Timer/Counter is shown in
I/O pins, refer to
and I/O pins, are shown in bold. The device-specific I/O register and bit locations are listed in the
“Register Description” on page
Figure 17-1. 8-Bit Timer/Counter Block Diagram
Single Channel Counter
Clear Timer on Compare Match (Auto Reload)
Glitch-free, Phase Correct Pulse width Modulator (PWM)
Frequency Generator
External Event Counter
10-bit Clock Prescaler
Overflow and Compare Match Interrupt Sources (TOV2 and OCF2)
“Pin Configurations” on page
Timer/Counter
TCNTn
OCRn
=
direction
BOTTOM
count
clear
159.
= 0
Control Logic
TCCRn
=
TOP
0xFF
2. CPU accessible I/O registers, including I/O bits
clk
Figure
Tn
Generation
Waveform
17-1. For the actual placement of
( From Prescaler )
Clock Select
Detector
Edge
ATmega128A
OCn
(Int.Req.)
TOVn
(Int.Req.)
OCn
Tn
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