ATtiny43U Atmel Corporation, ATtiny43U Datasheet - Page 156

• 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

Table 20-1.
Notes:
20.3
Figure 20-1. Maximum Frequency vs. V
156
Symbol
R
I
CC
PU
1. “Max” means the highest value where the pin is guaranteed to be read as low.
2. Not tested in production.
3. “Min” means the lowest value where the pin is guaranteed to be read as high.
4. Although each I/O port can under steady state (non-transient) conditions sink more than indicated, the sum of all I
5. Pins PB1, PB2, PB4 and PB5 are high sink I/O pins.
6. Although each I/O port can under steady state (non-transient) conditions source more than indicated, the sum of all I
7. See
Speed Grades
ATtiny43U
may not exceed 60 mA, or the boost converter limits. If I
anteed. Pins are not guaranteed to sink currents greater than those listed.
rents may not exceed 60 mA, or the boost converter limits. If I
guaranteed. Pins are not guaranteed to source currents greater than those listed.
Pull-up Resistor, I/O Pin
Pull-up Resistor, RESET Pin
Supply Current,
Active Mode,
Without Boost Converter
Supply Current,
Idle Mode,
Without Boost Converter
Supply Current,
Power-Down Mode,
Without Boost Converter
Parameter
DC Characteristics. T
“Boost Converter Characteristics” on page 159
8 MHz
4 MHz
1.8V
(7)
(7)
(7)
A
= -40°C to 85°C (Continued)
CC
(Boost Converter Disregarded).
Condition
V
V
f = 1MHz, V
f = 4MHz, V
f = 8MHz, V
f = 1MHz, V
f = 4MHz, V
f = 8MHz, V
WDT enabled, V
WDT disabled, V
CC
CC
=
=
5.5
5.5
V, input low
V, input low
Safe Operating Area
CC
CC
CC
CC
CC
CC
for current consumption of entire device, including boost converter.
= 2V
= 3V
= 5V
= 2V
= 3V
= 5V
2.7V
CC
CC
OL
= 3V
= 3V
limits are exceeded the corresponding V
OH
limits are exceeded the corresponding V
Min.
20
30
Typ.
0.04
0.25
0.35
0.2
1.3
1.0
4.5
4
5.5V
OL
Max.
0.55
0.15
levels can not be guar-
2.5
0.6
2.0
50
80
10
7
2
OH
levels can not be
8048B–AVR–03/09
OL
Units
currents
mA
mA
mA
mA
mA
mA
kΩ
kΩ
µA
µA
OH
cur-