ATMEGA169-16MI SL709 Atmel, ATMEGA169-16MI SL709 Datasheet - Page 129
![no-image](/images/manufacturer_photos/0/0/78/atmel_sml.jpg)
ATMEGA169-16MI SL709
Manufacturer Part Number
ATMEGA169-16MI SL709
Description
IC AVR MCU 16K 16MHZ IND 64QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA169-16MI SL709
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
SPI, UART/USART, USI
Peripherals
Brown-out Detect/Reset, LCD, POR, PWM, WDT
Number Of I /o
54
Program Memory Size
16KB (8K x 16)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
1K 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
For Use With
ATAVRBFLY - KIT EVALUATION AVR BUTTERFLYATSTK502 - MOD EXPANSION AVR STARTER 500
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
ATMEGA16916MSL709
- Current page: 129 of 365
- Download datasheet (4Mb)
Modes of Operation
Normal Mode
Clear Timer on Compare
Match (CTC) Mode
2514P–AVR–07/06
The mode of operation, i.e., the behavior of the Timer/Counter and the Output Compare
pins, is defined by the combination of the Waveform Generation mode (WGM21:0) and
Compare Output mode (COM2A1:0) bits. The Compare Output mode bits do not affect
the counting sequence, while the Waveform Generation mode bits do. The COM2A1:0
bits control whether the PWM output generated should be inverted or not (inverted or
non-inverted PWM). For non-PWM modes the COM2A1:0 bits control whether the out-
put should be set, cleared, or toggled at a compare match (See “Compare Match Output
Unit” on page 128.).
For detailed timing information refer to “Timer/Counter Timing Diagrams” on page 133.
The simplest mode of operation is the Normal mode (WGM21:0 = 0). In this mode the
counting direction is always up (incrementing), and no counter clear is performed. The
counter simply overruns when it passes its maximum 8-bit value (TOP = 0xFF) and then
restarts from the bottom (0x00). In normal operation the Timer/Counter Overflow Flag
(TOV2) will be set in the same timer clock cycle as the TCNT2 becomes zero. The
TOV2 Flag in this case behaves like a ninth bit, except that it is only set, not cleared.
However, combined with the timer overflow interrupt that automatically clears the TOV2
Flag, the timer resolution can be increased by software. There are no special cases to
consider in the Normal mode, a new counter value can be written anytime.
The Output Compare unit can be used to generate interrupts at some given time. Using
the Output Compare to generate waveforms in Normal mode is not recommended,
since this will occupy too much of the CPU time.
In Clear Timer on Compare or CTC mode (WGM21:0 = 2), the OCR2A Register is used
to manipulate the counter resolution. In CTC mode the counter is cleared to zero when
the counter value (TCNT2) matches the OCR2A. The OCR2A defines the top value for
the counter, hence also its resolution. This mode allows greater control of the compare
match output frequency. It also simplifies the operation of counting external events.
The timing diagram for the CTC mode is shown in Figure 57. The counter value
(TCNT2) increases until a compare match occurs between TCNT2 and OCR2A, and
then counter (TCNT2) is cleared.
Figure 57. CTC Mode, Timing Diagram
An interrupt can be generated each time the counter value reaches the TOP value by
using the OCF2A Flag. If the interrupt is enabled, the interrupt handler routine can be
used for updating the TOP value. However, changing the TOP to a value close to BOT-
TOM when the counter is running with none or a low prescaler value must be done with
care since the CTC mode does not have the double buffering feature. If the new value
written to OCR2A is lower than the current value of TCNT2, the counter will miss the
TCNTn
OCnx
(Toggle)
Period
1
2
3
4
ATmega169/V
OCnx Interrupt Flag Set
(COMnx1:0 = 1)
129
Related parts for ATMEGA169-16MI SL709
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![ATMEGA169-16AI](/photos/12/13/121332/313-64-tqfp_tmb.jpg)
Part Number:
Description:
IC AVR MCU 16K 16MHZ IND TQFP
Manufacturer:
Atmel
Datasheet:
![ATMEGA169-16MI](/images/manufacturer_photos/0/0/78/atmel_tmb.jpg)
Part Number:
Description:
IC AVR MCU 16K 16MHZ IND 64-QFN
Manufacturer:
Atmel
Datasheet:
![ATMEGA169-16AU](/photos/12/13/121332/313-64-tqfp_tmb.jpg)
Part Number:
Description:
IC AVR MCU 16K 16MHZ 5V 64TQFP
Manufacturer:
Atmel
Datasheet:
![ATMEGA169-16MU](/images/manufacturer_photos/0/0/78/atmel_tmb.jpg)
Part Number:
Description:
IC AVR MCU 16K 16MHZ 5V 64-QFN
Manufacturer:
Atmel
Datasheet:
![ATMEGA169-16AI SL709](/photos/12/13/121332/313-64-tqfp_tmb.jpg)
Part Number:
Description:
IC AVR MCU 16K 16MHZ IND 64TQFP
Manufacturer:
Atmel
Datasheet:
![ATMEGA169-16MI SL710](/images/manufacturer_photos/0/0/78/atmel_tmb.jpg)
Part Number:
Description:
IC AVR MCU 16K 16MHZ IND 64-QFN
Manufacturer:
Atmel
Datasheet:
![ATMEGA169-16AI SL710](/photos/12/13/121332/313-64-tqfp_tmb.jpg)
Part Number:
Description:
IC AVR MCU 16K 16MHZ IND 64TQFP
Manufacturer:
Atmel
Datasheet:
![ATMEGA169](/images/no-image3.png)
Part Number:
Description:
8-bit Microcontroller with 16K Bytes In-System Programmable Flash
Manufacturer:
ATMEL [ATMEL Corporation]
Datasheet:
![atmega169v](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
Atmega169 8-bit With 16k Bytes Of In-system Programmable Flash
Manufacturer:
ATMEL Corporation
Datasheet:
![ATSTK600](/photos/9/20/92038/atstk600_tmb.jpg)
Part Number:
Description:
DEV KIT FOR AVR/AVR32
Manufacturer:
Atmel
Datasheet:
![U641B](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
INTERVAL AND WIPE/WASH WIPER CONTROL IC WITH DELAY
Manufacturer:
ATMEL Corporation
Datasheet:
![U4082B](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
Low-Voltage Voice-Switched IC for Hands-Free Operation
Manufacturer:
ATMEL Corporation
Datasheet:
![U4089B](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
MONOLITHIC INTEGRATED FEATUREPHONE CIRCUIT
Manufacturer:
ATMEL Corporation
Datasheet:
![U4255BM-M](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
AM-FM Receiver IC U4255BM-M
Manufacturer:
ATMEL Corporation
Datasheet: