ATtiny40 Atmel Corporation, ATtiny40 Datasheet - Page 200
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
Figure 22-56. Calibrated Oscillator Frequency vs. Temperature
Figure 22-57. Calibrated Oscillator Frequency vs, OSCCAL Value
8,3
8,2
8,1
7,9
7,8
7,7
16
14
12
10
8
8
6
4
2
0
-40
0
16
32
-20
48
64
0
80
96
20
112
Temperature [°C ]
OSCCAL [X1]
128
144
40
160
176
60
192
208
80
224
5.0 V
3.0 V
1.8 V
240
8263A–AVR–08/10
100
-40 °C
25 °C
85 °C
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