ATtiny40 Atmel Corporation, ATtiny40 Datasheet - Page 166

• Manufacturer Part Number: ATtiny40
• Manufacturer: Atmel Corporation

Specifications of ATtiny40

• Flash (kbytes): 4 Kbytes
• Pin Count: 20
• Max. Operating Frequency: 12 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 12
• Hardware Qtouch Acquisition: Yes
• Max I/o Pins: 18
• Ext Interrupts: 18
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Twi (i2c): 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 12
• 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
• Self Program Memory: NO
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.8 to 5.5
• Operating Voltage (vcc): 1.8 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 2
• Output Compare Channels: 4
• Input Capture Channels: 1
• Pwm Channels: 2
• 32khz Rtc: No
• Calibrated Rc Oscillator: Yes

Table 21-1.
Notes:
21.3
166
Symbol
I
CC
1. Typical values at 25°C.
2. “Min” means the lowest value where the pin is guaranteed to be read as high.
3. “Max” means the highest value where the pin is guaranteed to be read as low.
4. Although each I/O port can sink more than the test conditions (10 mA at V
5. Although each I/O port can source more than the test conditions (10 mA at V
6. The RESET pin must tolerate high voltages when entering and operating in programming modes and, as a consequence,
7. Values are with external clock using methods described in
8. BOD Disabled.
Speed
ATtiny40
conditions (non-transient), the sum of all I
may exceed the related specification. Pins are not guaranteed to sink current greater than the listed test condition.
conditions (non-transient), the sum of all I
may exceed the related specification. Pins are not guaranteed to source current greater than the listed test condition.
has a weak drive strength as compared to regular I/O pins. See
is enabled (PRR = 0xFF) and there is no I/O drive.
Parameter
Power Supply Current
Power-down mode
DC Characteristics. T
The maximum operating frequency of the device depends on V
relationship between maximum frequency vs. V
Figure 21-1. Maximum Frequency vs. V
(8)
(7)
Condition
Active 1MHz, V
Active 4MHz, V
Active 8MHz, V
Idle 1MHz, V
Idle 4MHz, V
Idle 8MHz, V
WDT enabled, V
WDT disabled, V
A
= -40°C to +85°C (Continued)
12 MHz
8 MHz
4 MHz
CC
CC
CC
OL
OH
1.8V
CC
CC
CC
= 2V
= 3V
= 5V
(for all ports) should not exceed 60 mA. If I
CC
(for all ports) should not exceed 60 mA. If I
CC
= 2V
= 3V
= 5V
= 3V
= 3V
2.7V
“Minimizing Power Consumption” on page
CC
Min
Figure 22-32
CC
is linear between 1.8V - 2.7V and 2.7V - 4.5V.
CC
4.5V
CC
= 5V, 5 mA at V
to
Typ
0.03
= 5V, 5 mA at V
0.15
0.4
1.1
3.2
0.2
0.8
4.5
Figure
(1)
OL
CC
OH
22-37, starting from
exceeds the test conditions, V
. As shown in
exceeds the test condition, V
5.5V
CC
CC
= 3V) under steady state
Max
0.6
0.2
0.5
1.5
10
2
5
2
= 3V) under steady state
29. Power Reduction
Figure
page
8263A–AVR–08/10
Units
188.
mA
mA
mA
mA
mA
mA
µA
µA
21-1, the
OH
OL