ATMEGA644V-10AU Atmel, ATMEGA644V-10AU Datasheet - Page 320

• Manufacturer Part Number: ATMEGA644V-10AU
• Description: IC AVR MCU FLASH 64K 44TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA644V-10AU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 10MHz
• 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-TQFP, 44-VQFP
• Processor Series: ATMEGA64x
• Core: AVR8
• Data Bus Width: 8 bit
• Data Ram Size: 4 KB
• Interface Type: 2-Wire/SPI/USART
• Maximum Clock Frequency: 10 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 3
• Operating Supply Voltage: 1.8 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8-ch x 10-bit
• Package: 44TQFP
• Device Core: AVR
• Family Name: ATmega
• Maximum Speed: 10 MHz
• For Use With: ATSTK600-TQFP44 - STK600 SOCKET/ADAPTER 44-TQFPATSTK600-DIP40 - STK600 SOCKET/ADAPTER 40-PDIP770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAG770-1005 - ISP 4PORT FOR ATMEL AVR MCU JTAG770-1004 - ISP 4PORT FOR ATMEL AVR MCU SPIATAVRISP2 - PROGRAMMER AVR IN SYSTEM
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

26.5
Table 26-3.
Note:
Table 26-4.
Note:
320
Symbol
V
V
V
V
t
t
V
t
I
RST
HYST
BOD
POT
RST
PSR
BG
BG
BG
System and Reset Characteristics
1. The Power-on Reset will not work unless the supply voltage has been below V
1. V
ATmega644
tested down to V
a voltage where correct operation of the microcontroller is no longer guaranteed. The test is performed using
BODLEVEL = 110 for ATmega644 and BODLEVEL = 101 for ATmega644V.
BODLEVEL [2:0] Fuses
BOT
Parameter
Power-on Reset Threshold Voltage (rising)
Power-on Reset Threshold Voltage (falling)
Power-on Slope Rate
Minimum pulse width on
RESET Pin
Brown-out Detector Hysteresis
Min Pulse Width on Brown-out Reset
Bandgap reference voltage
Bandgap reference start-up time
Bandgap reference current consumption
Reset, Brown-out and Internal Voltage Reference Characteristics
BODLEVEL Fuse Coding
RESET Pin Threshold Voltage
may be below nominal minimum operating voltage for some devices. For devices where this is the case, the device is
111
110
101
100
011
010
001
000
CC
= V
BOT
during the production test. This guarantees that a Brown-Out Reset will occur before V
(1)
Min V
(1)
1.7
2.5
4.1
BOT
Condition
V
T
V
T
V
T
A
A
A
CC
CC
CC
= 25⋅C
= 25⋅C
= 25⋅C
= 2.7
= 2.7
= 2.7
Typ V
1.8
2.7
4.3
0.1V
0.05
0.01
Min
0.7
1.0
BOD Disabled
BOT
CC
Reserved
POT
(falling)
Typ
1.0
0.9
1.1
50
40
10
Max V
2.0
2.9
4.5
BOT
0.9V
Max
1.4
1.3
4.5
1.5
1.2
70
CC
2593N–AVR–07/10
CC
Units
V
drops to
Units
V/ms
mV
µA
µs
ns
µs
V
V
V