ATtiny28L Atmel Corporation, ATtiny28L Datasheet - Page 79

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ATtiny28L

Manufacturer Part Number
ATtiny28L
Description
Manufacturer
Atmel Corporation
Datasheets

Specifications of ATtiny28L

Flash (kbytes)
2 Kbytes
Pin Count
28
Max. Operating Frequency
4 MHz
Cpu
8-bit AVR
Hardware Qtouch Acquisition
No
Max I/o Pins
11
Ext Interrupts
10
Usb Speed
No
Usb Interface
No
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Analog Comparators
1
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
0.03
Self Program Memory
NO
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
1
32khz Rtc
No
Calibrated Rc Oscillator
Yes
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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