ATMEGA645A-AU Atmel, ATMEGA645A-AU Datasheet - Page 2
![IC MCU AVR 64K FLASH 64TQFP](/photos/12/13/121332/313-64-tqfp_sml.jpg)
ATMEGA645A-AU
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATMEGA645A-AUR
Manufacturer:
HONEYWELL
Quantity:
101
- Current page: 2 of 680
- Download datasheet (37Mb)
1. Pin Configurations
1.1
Figure 1-1.
Note:
2
(USCK/SCL/PCINT4) PE4
(XCK/AIN0/PCINT2) PE2
Pinout - TQFP and QFN/MLF
The large center pad underneath the QFN/MLF packages is made of metal and internally connected to GND. It should be sol-
dered or glued to the board to ensure good mechanical stability. If the center pad is left unconnected, the package might loosen
from the board.
(DI/SDA/PCINT5) PE5
(OC0A/PCINT12) PB4
(OC1A/PCINT13) PB5
(OC1B/PCINT14) PB6
(MOSI/PCINT10) PB2
(MISO/PCINT11) PB3
ATmega165A/165PA/325A/325PA/3250A/3250PA/645A/645P/645
(CLKO/PCINT7) PE7
(AIN1/PCINT3) PE3
(RXD/PCINT0) PE0
(TXD/PCINT1) PE1
(SCK/PCINT9) PB1
(DO/PCINT6) PE6
(SS/PCINT8) PB0
64A (TQFP)and 64M1 (QFN/MLF) Pinout
ATmega165A/ATmega165PA/ATmega325A/ATmega325PA/ATmega645A/ATmega645P
DNC
10
11
12
14
15
16
13
1
2
3
4
5
6
7
8
9
INDEX CORNER
8285B–AVR–03/11
47
40
39
38
37
35
34
33
48
46
45
44
43
42
41
36
PA3
PA4
PA5
PA6
PA7
PG2
PC7
PC5
PC4
PC3
PC2
PC1
PC0
PC6
PG1
PG0
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