ATtiny43U Atmel Corporation, ATtiny43U Datasheet - Page 179

• Manufacturer Part Number: ATtiny43U
• Manufacturer: Atmel Corporation

Specifications of ATtiny43U

• Flash (kbytes): 4 Kbytes
• Pin Count: 20
• Max. Operating Frequency: 8 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 8
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 16
• Ext Interrupts: 16
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Twi (i2c): 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 4
• Adc Resolution (bits): 10
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: Yes
• Crypto Engine: No
• Sram (kbytes): 0.25
• Eeprom (bytes): 64
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: Yes
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 0.7 to 5.5
• Operating Voltage (vcc): 0.7 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 2
• Output Compare Channels: 4
• Pwm Channels: 4
• 32khz Rtc: No
• Calibrated Rc Oscillator: Yes

8048B–AVR–03/09
12 8-bit Timer/Counter with PWM (Timer/Counter0 and Timer/Counter1) .
13 Timer/Counter Prescaler ....................................................................... 98
14 USI – Universal Serial Interface .......................................................... 100
15 Analog Comparator ............................................................................. 112
16 Analog to Digital Converter ................................................................ 115
79
11.4
12.1
12.2
12.3
12.4
12.5
12.6
12.7
12.8
12.9
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
Register Description ........................................................................................78
Features ..........................................................................................................79
Overview ..........................................................................................................79
Timer/Counter Clock Sources .........................................................................80
Counter Unit ....................................................................................................80
Output Compare Unit .......................................................................................81
Compare Match Output Unit ............................................................................83
Modes of Operation .........................................................................................84
Timer/Counter Timing Diagrams .....................................................................88
Register Description ........................................................................................90
Prescaler Reset ...............................................................................................98
External Clock Source .....................................................................................98
Register Description ........................................................................................99
Features ........................................................................................................100
Overview ........................................................................................................100
Functional Descriptions .................................................................................101
Alternative USI Usage ...................................................................................107
Register Descriptions ....................................................................................107
Analog Comparator Multiplexed Input ...........................................................112
Register Description ......................................................................................113
Features ........................................................................................................115
Overview ........................................................................................................115
ADC Operation ..............................................................................................116
Starting a Conversion ....................................................................................116
Prescaling and Conversion Timing ................................................................117
Changing Channel or Reference Selection ...................................................120
ADC Noise Canceler .....................................................................................121
Analog Input Circuitry ....................................................................................122
Analog Noise Canceling Techniques .............................................................122
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