ATtiny43U Atmel Corporation, ATtiny43U Datasheet - Page 180

• 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

iv
ATtiny43U
17 debugWIRE On-chip Debug System .................................................. 131
18 Self-Programming the Flash ............................................................... 133
19 Memory Programming ......................................................................... 139
20 Electrical Characteristics .................................................................... 155
16.10
16.11
16.12
16.13
17.1
17.2
17.3
17.4
17.5
17.6
18.1
18.2
18.3
18.4
18.5
18.6
18.7
18.8
18.9
19.1
19.2
19.3
19.4
19.5
19.6
19.7
20.1
20.2
20.3
20.4
20.5
ADC Accuracy Definitions .............................................................................123
ADC Conversion Result .................................................................................125
Temperature Measurement ...........................................................................125
Register Description ......................................................................................126
Features ........................................................................................................131
Overview ........................................................................................................131
Physical Interface ..........................................................................................131
Software Break Points ...................................................................................132
Limitations of debugWIRE .............................................................................132
Register Description ......................................................................................132
Performing Page Erase by SPM ....................................................................133
Filling the Temporary Buffer (Page Loading) .................................................133
Performing a Page Write ...............................................................................134
Addressing the Flash During Self-Programming ...........................................134
EEPROM Write Prevents Writing to SPMCSR ..............................................135
Reading the Fuse and Lock Bits from Software ............................................135
Preventing Flash Corruption ..........................................................................137
Programming Time for Flash when Using SPM ............................................137
Register Description ......................................................................................137
Program And Data Memory Lock Bits ...........................................................139
Fuse Bytes .....................................................................................................140
Device Signature Imprint Table .....................................................................141
Page Size ......................................................................................................142
Parallel Programming Parameters, Pin Mapping, and Commands ...............142
Parallel Programming ....................................................................................144
Serial Programming .......................................................................................151
Absolute Maximum Ratings* .........................................................................155
DC Characteristics .........................................................................................155
Speed Grades ...............................................................................................156
Clock Characteristics .....................................................................................157
System and Reset Characteristics ................................................................158
8048B–AVR–03/09