ATMEGA3250-16AUR Atmel, ATMEGA3250-16AUR Datasheet - Page 300

• Manufacturer Part Number: ATMEGA3250-16AUR
• Description: MCU AVR 32K FLASH 16MHZ 100TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA3250-16AUR

• 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: 69
• Program Memory Size: 32KB (16K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 1K x 8
• Ram Size: 2K 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

27.4
27.4.1
Table 27-2.
Note:
27.4.2
27.4.3
2570M–AVR–04/11
Factory
Calibration
User
Calibration
Clock Characteristics
1. Voltage range for ATmega325V/3250V/645V/6450V.
2. Voltage range for Atmel ATmega325/3250/645/6450.
Calibrated Internal Oscillator Accuracy
External Clock Drive Waveforms
External Clock Drive
Calibration Accuracy of Internal RC Oscillator
Figure 27-3. External Clock Drive Waveforms
Table 27-3.
Symbol
1/t
t
t
t
t
t
Δ
CLCL
CHCX
CLCX
CLCH
CHCL
t
CLCL
CLCL
7.3 - 8.1 MHz
Frequency
8.0 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
IL1
V
IH1
1.8V - 5.5V
2.7V - 5.5V
1000
Min.
V
400
400
CC
0
V
3V
CC
=1.8-5.5V
(1)
(2)
Max.
2.0
2.0
1
2
ATmega325/3250/645/6450
Min.
V
125
50
50
0
CC
=2.7-5.5V
Temperature
-40°C - 85°C
25°C
Max.
1.6
1.6
8
2
Min.
62.5
V
25
25
CC
0
=4.5-5.5V
Calibration Accuracy
Max.
0.5
0.5
16
2
±10%
±1%
Units
MHz
ns
ns
ns
μs
μs
%
300