ATtiny43U Atmel Corporation, ATtiny43U Datasheet - Page 72
ATtiny43U
Manufacturer Part Number
ATtiny43U
Description
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
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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
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