ATMEGA64A-ANR Atmel, ATMEGA64A-ANR Datasheet - Page 329

• Manufacturer Part Number: ATMEGA64A-ANR
• Description: IC MCU AVR 64K FLASH 64TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA64A-ANR

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 53
• Program Memory Size: 64KB (32K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 2K x 8
• Ram Size: 4K 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

28.3
28.4
28.4.1
28.4.2
8160C–AVR–07/09
Speed Grades
Clock Characteristics
External Clock Drive Waveforms
External Clock Drive
Figure 28-1. Maximum Frequency vs. Vcc
Figure 28-2. External Clock Drive Waveforms
Table 28-1.
Symbol
1/t
t
t
t
t
t
Δ
CLCL
CHCX
CLCX
CLCH
CHCL
t
CLCL
CLCL
16 MHz
Parameter
Oscillator Frequency
Clock Period
High Time
Low Time
Rise Time
Fall Time
Change in period from
one clock cycle to the
next
V
External Clock Drive
8 MHz
IL1
V
IH1
2.7V
(1)
V
Safe Operating Area
Min
125
CC
50
50
0
= 2.7V to
Max
5.5
1.6
1.6
8
2
4.5V
V
V
62.5
Min
CC
25
25
0
= 4.5V to
5.5V
ATmega64A
Max
5.5
0.5
0.5
16
2
V
Units
MHz
ns
ns
ns
μs
μs
%
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