ATTINY20-MMHR Atmel, ATTINY20-MMHR Datasheet - Page 221
ATTINY20-MMHR
Manufacturer Part Number
ATTINY20-MMHR
Description
MCU AVR 2KB FLASH 12MHZ 20QFN
Manufacturer
Atmel
Series
AVR® ATtinyr
Datasheet
1.ATTINY20-EK1.pdf
(224 pages)
Specifications of ATTINY20-MMHR
Core Processor
AVR
Core Size
8-Bit
Speed
12MHz
Connectivity
I²C, SPI
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
12
Program Memory Size
2KB (1K x 16)
Program Memory Type
FLASH
Ram Size
128 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
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ATTINY20-MMHR
Manufacturer:
ATMEL
Quantity:
20 000
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8235B–AVR–04/11
13 Timer/Counter Prescaler ..................................................................... 105
14 Analog Comparator ............................................................................. 108
15 Analog to Digital Converter ................................................................ 112
16 SPI – Serial Peripheral Interface ......................................................... 129
17 TWI – Two Wire Slave Interface .......................................................... 138
12.6
12.7
12.8
12.9
12.10
12.11
13.1
13.2
13.3
14.1
14.2
15.1
15.2
15.3
15.4
15.5
15.6
15.7
15.8
15.9
15.10
15.11
15.12
15.13
16.1
16.2
16.3
16.4
16.5
Output Compare Units .....................................................................................83
Compare Match Output Unit ............................................................................85
Modes of Operation .........................................................................................86
Timer/Counter Timing Diagrams .....................................................................93
Accessing 16-bit Registers ..............................................................................95
Register Description ........................................................................................99
Prescaler Reset .............................................................................................105
External Clock Source ...................................................................................105
Register Description ......................................................................................107
Analog Comparator Multiplexed Input ...........................................................109
Register Description ......................................................................................109
Features ........................................................................................................112
Overview ........................................................................................................112
Operation .......................................................................................................113
Starting a Conversion ....................................................................................114
Prescaling and Conversion Timing ................................................................115
Changing Channel or Reference Selection ...................................................118
ADC Noise Canceler .....................................................................................119
Analog Input Circuitry ....................................................................................119
Noise Canceling Techniques .........................................................................120
ADC Accuracy Definitions .............................................................................120
ADC Conversion Result .................................................................................123
Temperature Measurement ...........................................................................123
Register Description ......................................................................................124
Features ........................................................................................................129
Overview ........................................................................................................129
SS Pin Functionality ......................................................................................133
Data Modes ...................................................................................................134
Register Description ......................................................................................135
ATtiny20
iii
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