ATMEGA165-16AU Atmel, ATMEGA165-16AU Datasheet - Page 281
![IC AVR MCU 16K 16MHZ 64TQFP](/photos/12/13/121332/313-64-tqfp_sml.jpg)
ATMEGA165-16AU
Manufacturer Part Number
ATMEGA165-16AU
Description
IC AVR MCU 16K 16MHZ 64TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA165-16AU
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
64-TQFP, 64-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
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External Clock Drive
Waveforms
External Clock Drive
Maximum speed vs. V
2573G–AVR–07/09
CC
Figure 127. External Clock Drive Waveforms
Table 116. External Clock Drive
Maximum frequency is depending on V
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 117. Constants used to calculate maximum speed vs. V
At 3 Volt, this gives:
Thus, when V
At 6 MHz this gives:
Thus, a maximum frequency of 6 MHz requires V
Symbol
1/t
t
t
t
t
t
Δ
2.7 < V
1.8 < V
CLCL
CHCX
CLCX
CLCH
CHCL
t
Voltage and Frequency range
CLCL
CLCL
CC
CC
V
Parameter
Oscillator
Frequency
Clock Period
High Time
Low Time
Rise Time
Fall Time
Change in period
from one clock
cycle to the next
< 4.5 or 8 < Frq < 16
< 2.7 or 4 < Frq < 8
IL1
CC
V
IH1
= 3V, maximum frequency will be 9.33 MHz.
Frequency
Voltage
CC
Frequency
=
Voltage
curve is linear between 1.8V < V
1000
V
Min.
400
400
1.8
------- -
=
0
8
CC
------- -
1.8
=1.8-5.5V
8
•
(
6 4
•
=
8/1.8
Max.
CC.
(
–
=
2.0
2.0
a
3 2.7
1
2
b
–
a
As shown in Figure 128 and Figure 129, the
)
•
+
•
(
F Fy
(
1.8
V Vx
–
)
Min.
V
125
+
–
CC
50
50
0
CC
=
8
)
= 2.25V.
=2.7-5.5V
1.8/8
2.25
+
=
)
b
+
Vx
9.33
Fy
Max.
1.6
1.6
8
2
ATmega165/V
CC
CC
Min.
62.5
V
2.7
1.8
Vx
25
25
< 4.5V. To calculate
CC
0
=4.5-5.5V
Max.
0.5
0.5
16
2
Fy
8
4
Units
MHz
281
ns
ns
ns
μs
μs
%
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