ATtiny28L

Manufacturer Part NumberATtiny28L
ManufacturerAtmel Corporation
ATtiny28L datasheets
 


Specifications of ATtiny28L

Flash (kbytes)2 KbytesPin Count28
Max. Operating Frequency4 MHzCpu8-bit AVR
Hardware Qtouch AcquisitionNoMax I/o Pins11
Ext Interrupts10Usb SpeedNo
Usb InterfaceNoGraphic LcdNo
Video DecoderNoCamera InterfaceNo
Analog Comparators1Resistive Touch ScreenNo
Temp. SensorNoCrypto EngineNo
Sram (kbytes)0.03Self Program MemoryNO
Dram MemoryNoNand InterfaceNo
PicopowerNoTemp. Range (deg C)-40 to 85
I/o Supply Class1.8 to 5.5Operating Voltage (vcc)1.8 to 5.5
FpuNoMpu / Mmuno / no
Timers132khz RtcNo
Calibrated Rc OscillatorYes  
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Table of Contents
1062F–AVR–07/06
Features................................................................................................. 1
Pin Configurations................................................................................ 1
Description ............................................................................................ 2
Block Diagram ...................................................................................................... 2
Pin Descriptions.................................................................................................... 3
Clock Options ....................................................................................................... 4
Architectural Overview......................................................................... 6
General-purpose Register File.............................................................................. 7
ALU – Arithmetic Logic Unit.................................................................................. 7
Downloadable Flash Program Memory ................................................................ 7
Program and Data Addressing Modes.................................................................. 7
Subroutine and Interrupt Hardware Stack .......................................................... 10
Memory Access and Instruction Execution Timing ............................................. 10
I/O Memory ......................................................................................................... 11
Reset and Interrupt Handling.............................................................................. 12
Sleep Modes....................................................................................................... 21
Timer/Counter0 ................................................................................... 24
Timer/Counter Prescaler..................................................................................... 24
Watchdog Timer.................................................................................. 27
Calibrated Internal RC Oscillator ...................................................... 29
Hardware Modulator ........................................................................... 30
Analog Comparator ............................................................................ 35
I/O Ports............................................................................................... 37
Port A.................................................................................................................. 37
Port B.................................................................................................................. 40
Port D.................................................................................................................. 43
Memory Programming........................................................................ 45
Program Memory Lock Bits ................................................................................ 45
Fuse Bits............................................................................................................. 45
Signature Bytes .................................................................................................. 45
Calibration Byte .................................................................................................. 45
Programming the Flash ...................................................................................... 45
Parallel Programming ......................................................................................... 46
Parallel Programming Characteristics.............................................. 52
ATtiny28L/V
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