ATMEGA645A-AU Atmel, ATMEGA645A-AU Datasheet - Page 520

• Manufacturer Part Number: ATMEGA645A-AU
• Description: IC MCU AVR 64K FLASH 64TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA645A-AU

• 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: 64KB (32K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 2K x 8
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-TQFP
• Processor Series: ATmega
• Core: AVR
• Data Bus Width: 8 bit
• Data Ram Size: 4 KB
• Interface Type: SPI, USART
• Maximum Clock Frequency: 16 MHz
• Number Of Programmable I/os: 54
• Number Of Timers: 3
• Operating Supply Voltage: 3.3 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Operating Temperature Range: - 40 C to + 85 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

520
ATmega165A/165PA/325A/325PA/3250A/3250PA/645A/645P/645
Figure 29-363.ATmega3250PA: Reset Supply Current vs. V
Figure 29-364.ATmega3250PA: Minimum Reset Pulse Width vs. V
2500
2250
2000
1750
1500
1250
1000
2.5
1.5
0.5
750
500
250
2
1
0
0
0
1.5
Through The Reset Pull-up)
2
2
4
1.8 V
2.5
6
3
8
Frequency [MHz]
V
CC
10
3.5
2.7 V
[V]
12
4
3.3 V
CC
14
(1 - 20MHz, Excluding Current
4.5
CC
16
4.0 V
5
18
5.5
20
8285B–AVR–03/11
-40 °C
85 °C
25 °C
5.5 V
5.0 V
4.5 V