ATmega48 Atmel Corporation, ATmega48 Datasheet - Page 333
ATmega48
Manufacturer Part Number
ATmega48
Description
Manufacturer
Atmel Corporation
Specifications of ATmega48
Flash (kbytes)
4 Kbytes
Pin Count
32
Max. Operating Frequency
20 MHz
Cpu
8-bit AVR
# Of Touch Channels
12
Hardware Qtouch Acquisition
No
Max I/o Pins
23
Ext Interrupts
24
Usb Speed
No
Usb Interface
No
Spi
2
Twi (i2c)
1
Uart
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
8
Adc Resolution (bits)
10
Adc Speed (ksps)
15
Analog Comparators
1
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
0.5
Eeprom (bytes)
256
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
3
Output Compare Channels
6
Input Capture Channels
1
Pwm Channels
6
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
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Manufacturer
Quantity
Price
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Part Number:
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Manufacturer:
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30.10 BOD thresholds and analog comparator offset
2545T–AVR–05/11
Figure 30-33. Reset input pin hysteresis vs. V
Figure 30-34. BOD thresholds vs. temperature (BODLEVEL is 4.3V).
4.45
4.35
4.25
600
500
400
300
200
100
4.5
4.4
4.3
4.2
0
-50
2
-40
-30
2.5
-20
-10
3
0
10
Temperature (°C)
3.5
Falling Vcc
Rising Vcc
20
V
CC
(V)
30
CC
4
.
40
50
4.5
60
ATmega48/88/168
70
80
5
90
100
5.5
VIL
333