ATMEGA645A-AU Atmel, ATMEGA645A-AU Datasheet - Page 23

• 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

8.7
Notes:
8285BS–AVR–03/11
64A
64M1
Speed (MHz)
ATmega645A
1. This device can also be supplied in wafer form. Please contact your local Atmel sales office for detailed ordering information
2. Pb-free packaging, complies to the European Directive for Restriction of Hazardous Substances (RoHS directive). Also
3. For Speed vs. V
4. Tape & Reel
20
and minimum quantities.
Halide free and fully Green.
64-Lead, Thin (1.0mm) Plastic Gull Wing Quad Flat Package (TQFP)
64-pad, 9 x 9 x 1.0mm body, lead pitch 0.50mm, Quad Flat No-Lead/Micro Lead Frame Package (QFN/MLF)
(3)
CC
Power Supply
ATmega165A/165PA/325A/325PA/3250A/3250PA/6
, see
1.8 - 5.5V
Figure 27-1 on page
Ordering Code
ATmega645A-AU
ATmega645A-AUR
ATmega645A-MU
ATmega645A-MUR
326.
Package Type
(2)
(4)
(4)
Package
64A
64A
64M1
64M1
(1)
Operation Range
(-4
0°C to 85°C)
Industrial
23