ATtiny43U Atmel Corporation, ATtiny43U Datasheet - Page 72

• 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

72
ATtiny43U
Table 11-4 on page 72
overriding signals shown in
Table 11-4.
1.
2.
Table 11-5.
Signal
Name
PUOE
PUOV
DDOE
DDOV
PVOE
PVOV
PTOE
DIEOE
DIEOV
DI
AIO
Signal
Name
PUOE
PUOV
DDOE
DDOV
PVOE
PVOV
PTOE
DIEOE
DIEOV
DI
AIO
RSTDISBL is 1 when the Fuse is “0” (Programmed).
EXT_CLOCK = external clock is selected as system clock
Overriding Signals for Alternate Functions in PA7..PA6
Overriding Signals for Alternate Functions in PA5..PA4
PA7/RESET/
RSTDISBL
1
RSTDISBL
MONCOM_ENABLE • debugWire
Transmit
RSTDISBL
0
0
RSTDISBL
PCINT7 • PCIE0
MONCOM_ENABLE +
MONCOM_ENABLE • RSTDISBL
PCINT7 • PCIE0)
dW/PCINT7 Input
PA5/AIN1/ PCINT5
0
0
0
0
0
0
0
(PCINT5 • PCIE) + AIN1D
PCINT5 • PCIE0
PCINT5 Input
Analog Comparator Negative Input
to
(1)
(1)
(1)
(1)
Table 11-6 on page 73
dW/
+ MONCOM_ENABLE
+ MONCOM_ENABLE
+ MONCOM_ENABLE
+ MONCOM_ENABLE +
Figure 11-5 on page
PCINT7
(1)
•
68.
relate the alternate functions of Port A to the
PA6/ PCINT6
EXT_CLK
0
EXT_CLK
0
EXT_CLK
0
0
EXT_CLK
(EXT_CLK
(EXT_CLK
CLKI/PCINT6 Input
PA4/AIN0/PCINT4
0
0
0
0
0
0
0
(PCINT4 • PCIE0) + AIN0D
PCINT4 • PCIE0
PCINT4 input
Analog Comparator Positive Input
(2)
(2)
(2)
(2)
(2)
(2)
+ (PCINT6 • PCIE0)
• PWR_DOWN) +
• PCINT7 • PCIE0)
8048B–AVR–03/09