ATtiny25 Automotive Atmel Corporation, ATtiny25 Automotive Datasheet - Page 194

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ATtiny25 Automotive

Manufacturer Part Number
ATtiny25 Automotive
Description
Manufacturer
Atmel Corporation

Specifications of ATtiny25 Automotive

Flash (kbytes)
2 Kbytes
Pin Count
8
Max. Operating Frequency
16 MHz
Cpu
8-bit AVR
# Of Touch Channels
4
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)
0.12
Eeprom (bytes)
128
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
Picopower
No
Temp. Range (deg C)
-40 to 125
I/o Supply Class
2.7 to 5.5
Operating Voltage (vcc)
2.7 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
194
ATtiny25/45/85
20 Self-Programming the Flash ............................................................... 130
21 Memory Programming ......................................................................... 134
22 Electrical Characteristics .................................................................... 150
23 Typical Characteristics ........................................................................ 154
19.2
19.3
19.4
19.5
19.6
20.1
20.2
20.3
20.4
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
22.5
23.1
23.2
23.3
23.4
23.5
23.6
23.7
23.8
Overview ........................................................................................................128
Physical Interface ..........................................................................................128
Software Break Points ...................................................................................129
Limitations of debugWIRE .............................................................................129
debugWIRE Related Register in I/O Memory ................................................129
Performing Page Erase by SPM ....................................................................130
Filling the Temporary Buffer (Page Loading) .................................................130
Performing a Page Write ...............................................................................131
Addressing the Flash During Self-Programming ...........................................131
Program And Data Memory Lock Bits ...........................................................134
Fuse Bytes .....................................................................................................135
Signature Bytes .............................................................................................137
Calibration Byte .............................................................................................137
Page Size ......................................................................................................137
Serial Downloading ........................................................................................138
High-voltage Serial Programming ..................................................................142
High-voltage Serial Programming Algorithm Sequence ................................144
High-voltage Serial Programming Characteristics .........................................149
Absolute Maximum Ratings* .........................................................................150
External Clock Drive Waveforms ...................................................................151
External Clock Drive ......................................................................................152
ADC Characteristics – Preliminary Data ........................................................153
Calibrated RC Oscillator Accuracy ................................................................154
Active Supply Current ....................................................................................155
Idle Supply Current ........................................................................................157
Power-Down Supply Current .........................................................................161
Pin Pull-up .....................................................................................................162
Pin Driver Strength ........................................................................................165
Pin Thresholds and Hysteresis ......................................................................168
BOD Thresholds and Analog Comparator Offset ..........................................171
Internal Oscillator Speed ...............................................................................172
7598H–AVR–07/09

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