ATmega6490 Atmel Corporation, ATmega6490 Datasheet - Page 330

• Manufacturer Part Number: ATmega6490
• Manufacturer: Atmel Corporation

Specifications of ATmega6490

• Flash (kbytes): 64 Kbytes
• Pin Count: 100
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 16
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 69
• Ext Interrupts: 32
• Usb Speed: No
• Usb Interface: No
• Spi: 2
• Twi (i2c): 1
• Uart: 1
• Segment Lcd: 160
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 4
• Eeprom (bytes): 2048
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.8 to 5.5
• Operating Voltage (vcc): 1.8 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 3
• Output Compare Channels: 4
• Input Capture Channels: 1
• Pwm Channels: 4
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

28.5
Table 28-4.
Notes:
Table 28-5.
Notes:
330
Symbol
V
V
V
V
t
t
V
t
I
RST
HYST
BOD
POT
PSR
RST
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
ATmega329/3290/649/6490
tested down to V
a voltage where correct operation of the microcontroller is no longer guaranteed. The test is performed using
BODLEVEL = 10 for ATmega329/3290/649/6490V and BODLEVEL = 01 for ATmega329/3290/649/6490L.
BODLEVEL 1:0 Fuses
BOT
Reset, Brown-out, and Internal Voltage Reference Characteristics
BODLEVEL Fuse Coding
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 Pin Threshold Voltage
may be below nominal minimum operating voltage for some devices. For devices where this is the case, the device is
(1)
11
10
01
00
CC
= V
BOT
during the production test. This guarantees that a Brown-Out Reset will occur before V
(1)
Min V
1.7
2.5
4.1
BOT
T
T
V
V
V
A
A
Condition
T
T
T
V
V
CC
CC
CC
= -40°C to
= -40°C to
A
A
A
CC
CC
85°C
85°C
= 25°C
= 25°C
= 25°C
= 2.7V,
= 2.7V,
= 2.7V,
= 3V
= 3V
Typ V
1.8
2.7
4.3
0.2 V
BOT
BOD Disabled
0.05
0.01
Min
0.7
1.0
POT
CC
(falling)
Typ
800
1.0
0.9
1.1
50
40
15
2
Max V
2.0
2.9
4.5
BOT
0.85 V
Max
1.4
1.3
4.5
1.2
70
CC
2552K–AVR–04/11
CC
Units
Units
drops to
V/ms
V
mV
µA
ns
µs
µs
V
V
V
V