ATtiny43U Atmel Corporation, ATtiny43U Datasheet - Page 174

• 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

26. Errata
26.1
26.1.1
26.1.2
26.1.3
174
ATtiny43U
ATtiny43U
Rev. C
Rev. B
Rev. A
The revision letter in this section refers to the revision of the ATtiny43U device.
•
1. Increased Probability of Boost Converter Entering Active Low Current Mode
Not sampled.
Not sampled.
Increased Probability of Boost Converter Entering Active Low Current Mode
The boost converter may enter and stay in Active Low Current Mode at supply voltages and
load currents higher than those specified. This is due to high switching currents in bonding
wires of the SOIC package. Devices packaged in MLF are not affected.
Problem Fix / Workaround
Add a 1.5nF capacitor between pins LSW and GND of the SOIC package. Also, increase the
value of the by-pass capacitor between pins V
Alternatively, use the device in MLF, without modifications.
CC
and GND to at least 30µF.
8048B–AVR–03/09