ATtiny85 Atmel Corporation, ATtiny85 Datasheet - Page 230

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ATtiny85

Manufacturer Part Number
ATtiny85
Description
Manufacturer
Atmel Corporation
Datasheets

Specifications of ATtiny85

Flash (kbytes)
8 Kbytes
Pin Count
8
Max. Operating Frequency
20 MHz
Cpu
8-bit AVR
# Of Touch Channels
3
Hardware Qtouch Acquisition
No
Max I/o Pins
6
Ext Interrupts
6
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)
0.5
Eeprom (bytes)
512
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
5
Pwm Channels
6
32khz Rtc
No
Calibrated Rc Oscillator
Yes

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iv
ATtiny25/45/85
19 Self-Programming the Flash ............................................................... 145
20 Memory Programming ......................................................................... 151
21 Electrical Characteristics .................................................................... 166
22 Typical Characteristics ........................................................................ 177
18.5
18.6
19.1
19.2
19.3
19.4
19.5
19.6
19.7
19.8
19.9
20.1
20.2
20.3
20.4
20.5
20.6
20.7
21.1
21.2
21.3
21.4
21.5
21.6
21.7
21.8
21.9
22.1
22.2
22.3
22.4
Limitations of debugWIRE .............................................................................144
Register Description ......................................................................................144
Performing Page Erase by SPM ....................................................................145
Filling the Temporary Buffer (Page Loading) .................................................145
Performing a Page Write ...............................................................................146
Addressing the Flash During Self-Programming ...........................................146
EEPROM Write Prevents Writing to SPMCSR ..............................................147
Reading Lock, Fuse and Signature Data from Software ...............................147
Preventing Flash Corruption ..........................................................................149
Programming Time for Flash when Using SPM ............................................149
Register Description ......................................................................................149
Program And Data Memory Lock Bits ...........................................................151
Fuse Bytes .....................................................................................................152
Device Signature Imprint Table .....................................................................153
Page Size ......................................................................................................154
Serial Downloading ........................................................................................155
High-voltage Serial Programming ..................................................................159
High-voltage Serial Programming Algorithm .................................................159
Absolute Maximum Ratings* .........................................................................166
DC Characteristics .........................................................................................166
Speed ............................................................................................................168
Clock Characteristics .....................................................................................169
System and Reset Characteristics ................................................................170
Brown-Out Detection .....................................................................................171
ADC Characteristics ......................................................................................172
Serial Programming Characteristics ..............................................................175
High-voltage Serial Programming Characteristics .........................................176
Active Supply Current ....................................................................................177
Idle Supply Current ........................................................................................180
Supply Current of I/O modules ......................................................................182
Power-down Supply Current ..........................................................................183
2586N–AVR–04/11

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