ATmega165P Atmel Corporation, ATmega165P Datasheet - Page 299

• Manufacturer Part Number: ATmega165P
• Manufacturer: Atmel Corporation

Specifications of ATmega165P

• Flash (kbytes): 16 Kbytes
• Pin Count: 64
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 16
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 54
• Ext Interrupts: 17
• 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): 1
• Eeprom (bytes): 512
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: Yes
• 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: 4
• Input Capture Channels: 1
• Pwm Channels: 4
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

26.3
8019K–AVR–11/10
Speed Grades
Maximum frequency is depending on V
300, the Maximum Frequency vs. V
the maximum frequency at a given voltage in this interval, use this equation:
To calculate required voltage for a given frequency, use this equation::
Table 26-1.
At 3 Volt, this gives:
Thus, when V
At 6 MHz this gives:
Thus, a maximum frequency of 6 MHz requires V
Figure 26-1. Maximum Frequency vs. V
2.7 < V
1.8 < V
Voltage and Frequency range
CC
CC
< 4.5 or 8 < Frq < 16
< 2.7 or 4 < Frq < 8
CC
8 MHz
4 MHz
Constants used to calculate maximum speed vs. V
= 3V, maximum frequency will be 9.33 MHz.
Frequency
Voltage
1.8V
=
1.8
------- -
=
Frequency
8
Voltage
------- -
1.8
8
•
CC
(
6 4
•
curve is linear between 1.8V < V
(
–
CC.
3 2.7
CC
–
)
=
8/1.8
Safe Operating Area
As shown in
, ATmega165PV
+
=
a
b
1.8
a
•
2.7V
)
•
(
+
CC
F Fy
(
=
8
V Vx
–
= 2.25V.
2.25
–
=
9.33
)
Figure 26-1
+
)
1.8/8
+
Vx
b
Fy
CC
and
ATmega165P
CC
2.7
1.8
Vx
5.5V
Figure 26-2 on page
< 4.5V. To calculate
Fy
8
4
299