ATMEGA644PA-MU Atmel, ATMEGA644PA-MU Datasheet - Page 570

• Manufacturer Part Number: ATMEGA644PA-MU
• Description: IC MCU 8BIT 64KB FLASH 44VQFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA644PA-MU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 32
• 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: 44-VQFN Exposed Pad
• Processor Series: ATMEGA64x
• Core: AVR8
• Data Bus Width: 8 bit
• Data Ram Size: 4 KB
• Interface Type: SPI, TWI, UART
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 32
• Operating Supply Voltage: 1.8 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWAVR, EWAVR-BL
• Development Tools By Supplier: ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

32.5
8272A–AVR–01/10
A1 BALL CORNER
49C2
Package Drawing Contact:
[e-mail]
A1 BALL ID
e
G
D
C
F
E
B
A
164A/164PA/324A/324PA/644A/644PA/1284/1284P
b
1
2
BOTTOM VIEW
3
TOP VIEW
E1
E
4
TITLE
49C2, 49-ball (7 x 7 Array), 0.65 mm Pitch,
5.0 x 5.0 x 1.0 mm, Very Thin, Fine-Pitch
Ball Grid Array Package (VFBGA)
5
6
e
7
D1
D
49 -
Ø
0.35 ± 0.05
SYMBOL
A
A1
A2
D
D1
E
E1
b
e
A
SIDE VIEW
0.20
0.65
4.90
4.90
0.30
COMMON DIMENSIONS
MIN
(Unit of Measure = mm)
–
GPC
A2
CBD
A1
3.90 BSC
3.90 BSC
0.65 BSC
0.10
NOM
5.00
5.00
0.35
–
–
–
DRAWING NO.
49C2
MAX
1.00
5.10
5.10
0.40
–
–
NOTE
3/14/08
REV.
A
570