ATTINY25-20SUR Atmel, ATTINY25-20SUR Datasheet - Page 231
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ATTINY25-20SUR
Manufacturer Part Number
ATTINY25-20SUR
Description
MCU AVR 2KB FLASH 20MHZ 8SOIC
Manufacturer
Atmel
Series
AVR® ATtinyr
Datasheet
1.ATTINY25-20MU.pdf
(236 pages)
Specifications of ATTINY25-20SUR
Core Processor
AVR
Core Size
8-Bit
Speed
20MHz
Connectivity
USI
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
6
Program Memory Size
2KB (1K x 16)
Program Memory Type
FLASH
Eeprom Size
128 x 8
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 4x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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2586M–AVR–07/10
14 Dead Time Generator ........................................................................... 108
15 USI – Universal Serial Interface .......................................................... 111
16 Analog Comparator ............................................................................. 123
17 Analog to Digital Converter ................................................................ 126
18 debugWIRE On-chip Debug System .................................................. 143
13.1
13.2
13.3
14.1
15.1
15.2
15.3
15.4
15.5
16.1
16.2
17.1
17.2
17.3
17.4
17.5
17.6
17.7
17.8
17.9
17.10
17.11
17.12
17.13
18.1
18.2
18.3
18.4
18.5
Timer/Counter1 Prescaler ...............................................................................98
Counter and Compare Units ............................................................................98
Register Description ......................................................................................103
Register Description ......................................................................................109
Features ........................................................................................................111
Overview ........................................................................................................111
Functional Descriptions .................................................................................112
Alternative USI Usage ...................................................................................117
Register Descriptions ....................................................................................118
Analog Comparator Multiplexed Input ...........................................................123
Register Description ......................................................................................124
Features ........................................................................................................126
Overview ........................................................................................................126
Operation .......................................................................................................127
Starting a Conversion ....................................................................................128
Prescaling and Conversion Timing ................................................................129
Changing Channel or Reference Selection ...................................................132
ADC Noise Canceler .....................................................................................132
Analog Input Circuitry ....................................................................................133
Noise Canceling Techniques .........................................................................134
ADC Accuracy Definitions .............................................................................134
ADC Conversion Result .................................................................................136
Temperature Measurement ...........................................................................137
Register Description ......................................................................................138
Features ........................................................................................................143
Overview ........................................................................................................143
Physical Interface ..........................................................................................143
Software Break Points ...................................................................................144
Limitations of debugWIRE .............................................................................144
iii
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