ATtiny40 Atmel Corporation, ATtiny40 Datasheet - Page 56
ATtiny40
Manufacturer Part Number
ATtiny40
Description
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
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ATtiny40
Table 10-4
shown in
Table 10-4.
Note:
Table 10-5.
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
When TWI is enabled the slew rate control and spike filter are activated on PA7. This is not illus-
trated in
module.
Figure 10-6 on page
(PCINT4 • PCIE0) + ADC4D
and
PCINT7 • PCIE0 + ADC7D
Overriding Signals for Alternate Functions in PA[7:5]
Overriding Signals for Alternate Functions in PA[4:2]
PA4/ADC4/PCINT4
PA7/ADC7/PCINT7
Figure 10-6 on page
T0 / PCINT4 input
PCINT4 • PCIE0
Table 10-5
PCINT7 • PCIE0
PCINT7 Input
ADC4 Input
ADC7 Input
0
0
0
0
0
0
0
0
0
0
0
0
0
0
relate the alternate functions of Port A to the overriding signals
52.
52. The spike filter is connected between AIOxn and the TWI
(PCINT3 • PCIE0) + ADC3D
PCINT6 • PCIE0 + ADC6D
PA6/ADC6/PCINT6
PA3/ADC3/PCINT3
PCINT6 • PCIE0
PCINT3 • PCIE0
PCINT6 Input
PCINT1 Input
ADC6 Input
ADC3 Input
0
0
0
0
0
0
0
0
0
0
0
0
0
0
PCINT5 • PCIE0 + ADC5D
(PCINT2 • PCIE0) + ADC2D
ADC2 / Analog Comparator
PA2/ADC2/AIN1/PCINT2
PA5/ADC5/PCINT5
PCINT5 • PCIE0
OC0B_ENABLE
PCINT3 • PCIE0
PCINT5 Input
Negative Input
PCINT0 Input
ADC5 Input
OC0B
0
0
0
0
0
0
0
0
0
0
0
0
8263A–AVR–08/10
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