ATMEGA165P-16AUR Atmel, ATMEGA165P-16AUR Datasheet - Page 299

• Manufacturer Part Number: ATMEGA165P-16AUR
• Description: MCU AVR 128K FLASH 16MHZ 64TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA165P-16AUR

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: SPI, UART/USART, USI
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 54
• Program Memory Size: 16KB (8K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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