ATMEGA16-16AQ Atmel, ATMEGA16-16AQ Datasheet - Page 117
![MCU AVR 16K FLASH 16MHZ 44-TQFP](/photos/6/70/67042/313-44-tqfp_sml.jpg)
ATMEGA16-16AQ
Manufacturer Part Number
ATMEGA16-16AQ
Description
MCU AVR 16K FLASH 16MHZ 44-TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheet
1.ATMEGA16L-8MI.pdf
(357 pages)
Specifications of ATMEGA16-16AQ
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
16KB (8K x 16)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
1K 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
44-TQFP, 44-VQFP
For Use With
ATSTK600-TQFP44 - STK600 SOCKET/ADAPTER 44-TQFPATSTK500 - PROGRAMMER AVR STARTER KIT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
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Part Number
Manufacturer
Quantity
Price
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8-bit
Timer/Counter2
with PWM and
Asynchronous
Operation
Overview
Registers
2466T–AVR–07/10
Timer/Counter2 is a general purpose, single compare unit, 8-bit Timer/Counter module. The
main features are:
•
•
•
•
•
•
•
A simplified block diagram of the 8-bit Timer/Counter is shown in
ment of I/O pins, refer to
I/O bits and I/O pins, are shown in bold. The device-specific I/O Register and bit locations are
listed in the
Figure 53. 8-bit Timer/Counter Block Diagram
The Timer/Counter (TCNT2) and Output Compare Register (OCR2) are 8-bit registers. Interrupt
request (shorten as Int.Req.) signals are all visible in the Timer Interrupt Flag Register (TIFR).
All interrupts are individually masked with the Timer Interrupt Mask Register (TIMSK). TIFR and
TIMSK are not shown in the figure since these registers are shared by other timer units.
The Timer/Counter can be clocked internally, via the prescaler, or asynchronously clocked from
the TOSC1/2 pins, as detailed later in this section. The asynchronous operation is controlled by
the Asynchronous Status Register (ASSR). The Clock Select logic block controls which clock
source the Timer/Counter uses to increment (or decrement) its value. The Timer/Counter is inac-
tive when no clock source is selected. The output from the Clock Select logic is referred to as the
timer clock (clk
Single Compare unit Counter
Clear Timer on Compare Match (Auto Reload)
Glitch-free, Phase Correct Pulse Width Modulator (PWM)
Frequency Generator
10-bit Clock Prescaler
Overflow and Compare Match Interrupt Sources (TOV2 and OCF2)
Allows clocking from External 32 kHz Watch Crystal Independent of the I/O Clock
Status flags
“8-bit Timer/Counter Register Description” on page
T2
Timer/Counter
).
TCNTn
OCRn
=
“Pinout ATmega16” on page
ASSRn
direction
count
clear
BOTTOM
Synchronized Status flags
= 0
Control Logic
=
TCCRn
TOP
asynchronous mode
0xFF
select (ASn)
clk
2. CPU accessible I/O Registers, including
Tn
Synchronization Unit
OCn
(Int.Req.)
Generation
Prescaler
Waveform
128.
Figure
ATmega16(L)
53. For the actual place-
Oscillator
T/C
clk
TOVn
(Int.Req.)
clk
clk
OCn
ASY
I/O
I/O
TOSC1
TOSC2
117
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