ATMEGA644V-10PU Atmel, ATMEGA644V-10PU Datasheet - Page 346

• Manufacturer Part Number: ATMEGA644V-10PU
• Description: IC AVR MCU FLASH 64K 40DIP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA644V-10PU

• 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: 40-DIP (0.600", 15.24mm)
• Processor Series: ATMEGA64x
• Core: AVR8
• Data Bus Width: 8 bit
• Data Ram Size: 4 KB
• Interface Type: 2-Wire, SPI, USART
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 8 bit
• Operating Supply Voltage: 1.8 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: Through Hole
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 8 Channel
• Package: 40PDIP
• Device Core: AVR
• Family Name: ATmega
• Maximum Speed: 10 MHz
• For Use With: ATSTK600-TQFP44 - STK600 SOCKET/ADAPTER 44-TQFPATSTK600 - DEV KIT FOR AVR/AVR32770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAGATAVRISP2 - PROGRAMMER AVR IN SYSTEM
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

27.10 BOD Threshold and Analog Comparator Offset
346
ATmega644
Figure 27-38. Reset Pin Input Hysteresis vs. V
Figure 27-39. BOD Threshold vs. Temperature (BOD Level is 4.3V)
0.45
0.35
0.25
0.15
0.05
0.4
0.3
0.2
0.1
4.5
3.5
2.5
0
5
4
3
2
1.5
-50
-40
-30
2
-20
2.5
-10
0
3
10
Temperature (°C)
20
V
CC
3.5
CC
(V)
30
|
40
4
50
60
4.5
70
Raising V
Falling V
80
5
cc
cc
90
100
5.5
25°C
2593N–AVR–07/10