ATtiny43U Atmel Corporation, ATtiny43U Datasheet - Page 76
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 11-9 on page 76
overriding signals shown in
Table 11-9.
Table 11-10. Overriding Signals for Alternate Functions in PB5..PB4
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
Overriding Signals for Alternate Functions in PB7..PB6
PB7/INT0/PCINT15
0
0
0
0
0
0
0
(PCINT15 • PCIE1) + INT0
(PCINT15 • PCIE1) + INT0
INT0/PCINT15
PB5/OC1B/PCINT13
0
0
0
0
OC1B Enable + (USIWM1 • USIWM0)
OC1B • (~USIWM1• USIWM0) + USIWM1
• USIWM0 • DO
0
PCINT13 • PCIE1
PCINT13 • PCIE1
PCINT13
to
Table 11-12 on page 77
Figure 11-5 on page
68.
relate the alternate functions of Port B to the
PB6/PCINT14
0
0
USIWM1
USI_SCL_HOLD + PORTB6
USIWM1
0
USIPTOE
(PCINT14 • PCIE1) + USISIE
(PCINT14 • PCIE1) + USISIE
PCINT14/USCK/SCL
PB4/OC1A/PCINT10
0
0
USIWM1
(SDA + PORTB4) • DDRB4
OC1A Enable + (USIWM1 • DDRB4)
OC1A • (USIWM1• DDRB4)
0
PCINT10 • PCIE1 + USISIE
PCINT10 • PCIE1 + USISIE
PCINT10/DI/SDA
8048B–AVR–03/09
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