ATMEGA16L-8AI Atmel, ATMEGA16L-8AI Datasheet - Page 90
![IC AVR MCU 16K LV 8MHZ IND44TQFP](/photos/6/70/67042/313-44-tqfp_sml.jpg)
ATMEGA16L-8AI
Manufacturer Part Number
ATMEGA16L-8AI
Description
IC AVR MCU 16K LV 8MHZ IND44TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA16L-8AI
Core Processor
AVR
Core Size
8-Bit
Speed
8MHz
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)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
44-TQFP, 44-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ATMEGA16L-8AI
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
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Registers
2466T–AVR–07/10
Figure 40. 16-bit Timer/Counter Block Diagram
Note:
The Timer/Counter (TCNT1), Output Compare Registers (OCR1A/B), and Input Capture Regis-
ter (ICR1) are all 16-bit registers. Special procedures must be followed when accessing the 16-
bit registers. These procedures are described in the section
page
access restrictions. Interrupt requests (abbreviated to Int.Req. in the figure) 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 regis-
ters are shared by other timer units.
The Timer/Counter can be clocked internally, via the prescaler, or by an external clock source on
the T1 pin. The Clock Select logic block controls which clock source and edge the Timer/Counter
uses to increment (or decrement) its value. The Timer/Counter is inactive when no clock source
is selected. The output from the clock select logic is referred to as the timer clock (clk
The double buffered Output Compare Registers (OCR1A/B) are compared with the Timer/Coun-
ter value at all time. The result of the compare can be used by the Waveform Generator to
generate a PWM or variable frequency output on the Output Compare pin (OC1A/B).
put Compare Units” on page 98.
Flag (OCF1A/B) which can be used to generate an output compare interrupt request.
92. The Timer/Counter Control Registers (TCCR1A/B) are 8-bit registers and have no CPU
1. Refer to
Timer/Counter1 pin placement and description.
Timer/Counter
TCCRnA
Figure 1 on page
OCRnA
OCRnB
TCNTn
ICRn
=
=
Direction
Count
Clear
The compare match event will also set the Compare Match
2,
Control Logic
TOP
Table 25 on page
=
TCCRnB
Values
BOTTOM
Fixed
TOP
(1)
ICFn (Int.Req.)
Detector
clk
Edge
=
Tn
0
58, and
“Accessing 16-bit Registers” on
OCnA
(Int.Req.)
OCnB
(Int.Req.)
TOVn
(Int.Req.)
Clock Select
Generation
Generation
( From Prescaler )
Waveform
Waveform
Canceler
Detector
Noise
Edge
ATmega16(L)
Table 31 on page 63
Comparator Ouput )
( From Analog
T
OCnB
1
See “Out-
OCnA
ICPn
).
Tn
90
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