ATTINY88-MMHR Atmel, ATTINY88-MMHR Datasheet - Page 89
![MCU AVR 8KB FLASH 12MHZ 28QFN](/photos/12/32/123209/28m1-vqfn_sml.jpg)
ATTINY88-MMHR
Manufacturer Part Number
ATTINY88-MMHR
Description
MCU AVR 8KB FLASH 12MHZ 28QFN
Manufacturer
Atmel
Series
AVR® ATtinyr
Datasheet
1.ATTINY48-MU.pdf
(302 pages)
Specifications of ATTINY88-MMHR
Core Processor
AVR
Core Size
8-Bit
Speed
12MHz
Connectivity
I²C, SPI
Peripherals
Brown-out Detect/Reset, POR, WDT
Number Of I /o
24
Program Memory Size
8KB (4K x 16)
Program Memory Type
FLASH
Eeprom Size
64 x 8
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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12. 16-bit Timer/Counter1 with PWM
12.1
12.2
8008G–AVR–04/11
Features
Overview
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Most register and bit references in this section are written in general form, where a lower case
“n” replaces the Timer/Counter number, and a lower case “x” replaces the Output Compare unit
channel. However, when using the register or bit defines in a program, the precise form must be
used, i.e., TCNT1 for accessing Timer/Counter1 counter value and so on.
The 16-bit Timer/Counter unit allows accurate program execution timing (event management),
wave generation, and signal timing measurement. A simplified block diagram of the 16-bit
Timer/Counter is shown in
Figure 12-1. 16-bit Timer/Counter Block Diagram
Note:
True 16-bit Design (i.e., Allows 16-bit PWM)
Two independent Output Compare Units
Double Buffered Output Compare Registers
One Input Capture Unit
Input Capture Noise Canceler
Clear Timer on Compare Match (Auto Reload)
Glitch-free, Phase Correct Pulse Width Modulator (PWM)
Variable PWM Period
Frequency Generator
External Event Counter
Four independent interrupt Sources (TOV1, OCF1A, OCF1B, and ICF1)
1. Refer to
Timer/Counter1 pin placement and description.
Figure 1-1 on page
Figure
Timer/Counter
TCCRnA
OCRnA
OCRnB
TCNTn
ICRn
=
=
12-1.
Direction
2,
Count
Clear
Table 10-5 on page 69
Control Logic
TOP
=
TCCRnB
Values
BOTTOM
Fixed
TOP
ICFn (Int.Req.)
clk
Detector
(1)
Edge
=
Tn
0
OCnA
(Int.Req.)
OCnB
(Int.Req.)
TOVn
(Int.Req.)
Clock Select
Generation
Generation
( From Prescaler )
Waveform
Waveform
Canceler
Detector
Noise
Edge
and
Table 10-11 on page 75
Comparator Ouput )
( From Analog
ATtiny48/88
OCnA
OCnB
ICPn
Tn
for
89
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