ATtiny24 Atmel Corporation, ATtiny24 Datasheet - Page 233

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ATtiny24

Manufacturer Part Number
ATtiny24
Description
Manufacturer
Atmel Corporation
Datasheets

Specifications of ATtiny24

Flash (kbytes)
2 Kbytes
Pin Count
14
Max. Operating Frequency
20 MHz
Cpu
8-bit AVR
# Of Touch Channels
4
Hardware Qtouch Acquisition
No
Max I/o Pins
12
Ext Interrupts
12
Usb Speed
No
Usb Interface
No
Spi
1
Twi (i2c)
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
8
Adc Resolution (bits)
10
Adc Speed (ksps)
15
Analog Comparators
1
Resistive Touch Screen
No
Temp. Sensor
Yes
Crypto Engine
No
Sram (kbytes)
0.12
Eeprom (bytes)
128
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
Picopower
No
Temp. Range (deg C)
-40 to 85
I/o Supply Class
1.8 to 5.5
Operating Voltage (vcc)
1.8 to 5.5
Fpu
No
Mpu / Mmu
no / no
Timers
2
Output Compare Channels
4
Input Capture Channels
1
Pwm Channels
4
32khz Rtc
No
Calibrated Rc Oscillator
Yes

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8006K–AVR–10/10
13 Timer/Counter Prescaler ..................................................................... 115
14 USI – Universal Serial Interface .......................................................... 117
15 Analog Comparator ............................................................................. 129
16 Analog to Digital Converter ................................................................ 132
17 debugWIRE On-chip Debug System .................................................. 151
12.7
12.8
12.9
12.10
12.11
13.1
13.2
13.3
14.1
14.2
14.3
14.4
14.5
15.1
15.2
16.1
16.2
16.3
16.4
16.5
16.6
16.7
16.8
16.9
16.10
16.11
16.12
16.13
17.1
Compare Match Output Unit ............................................................................94
Modes of Operation .........................................................................................96
Timer/Counter Timing Diagrams ...................................................................103
Accessing 16-bit Registers ............................................................................105
Register Description ......................................................................................108
Prescaler Reset .............................................................................................115
External Clock Source ...................................................................................115
Register Description ......................................................................................116
Features ........................................................................................................117
Overview ........................................................................................................117
Functional Descriptions .................................................................................118
Alternative USI Usage ...................................................................................124
Register Descriptions ....................................................................................124
Analog Comparator Multiplexed Input ...........................................................129
Register Description ......................................................................................130
Features ........................................................................................................132
Overview ........................................................................................................132
Operation .......................................................................................................133
Starting a Conversion ....................................................................................134
Prescaling and Conversion Timing ................................................................135
Changing Channel or Reference Selection ...................................................138
ADC Noise Canceler .....................................................................................139
Analog Input Circuitry ....................................................................................139
Noise Canceling Techniques .........................................................................140
ADC Accuracy Definitions .............................................................................140
ADC Conversion Result .................................................................................143
Temperature Measurement ...........................................................................144
Register Description ......................................................................................145
Features ........................................................................................................151
ATtiny24/44/84
iii

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