ATmega64 Atmel Corporation, ATmega64 Datasheet - Page 292

• Manufacturer Part Number: ATmega64
• Manufacturer: Atmel Corporation

Specifications of ATmega64

• Flash (kbytes): 64 Kbytes
• Pin Count: 64
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 16
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 53
• Ext Interrupts: 8
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Twi (i2c): 1
• Uart: 2
• 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: 2.7 to 5.5
• Operating Voltage (vcc): 2.7 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 4
• Output Compare Channels: 8
• Input Capture Channels: 2
• Pwm Channels: 7
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

2490Q–AVR–06/10
Table 118. Fuse High Byte
Notes:
Table 119. Fuse Low Byte
Notes:
The status of the Fuse bits is not affected by Chip Erase. Note that the Fuse bits are locked if
Lock bit1 (LB1) is programmed. Program the Fuse bits before programming the Lock bits.
Fuse High Byte
OCDEN
JTAGEN
SPIEN
CKOPT
EESAVE
BOOTSZ1
BOOTSZ0
BOOTRST
Fuse Low Byte
BODLEVEL
BODEN
SUT1
SUT0
CKSEL3
CKSEL2
CKSEL1
CKSEL0
(1)
1. The SPIEN Fuse is not accessible in SPI Serial Programming mode.
2. The CKOPT Fuse functionality depends on the setting of the CKSEL bits. See
3. The default value of BOOTSZ1..0 results in maximum Boot Size. See
4. If the JTAG interface is left unconnected, the JTAGEN fuse should if possible be disabled. This
1. The default value of SUT1..0 results in maximum start-up time. See
2. The default setting of CKSEL3..0 results in internal RC Oscillator @ 1 MHz. See
(2)
(4)
Sources” on page 38
to avoid static current at the TDO pin in the JTAG interface
details.
page 38
Bit no
Bit no
for details.
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
Description
Brown out detector trigger
level
Brown out detector enable
Select start-up time
Select start-up time
Select Clock source
Select Clock source
Select Clock source
Select Clock source
Description
Enable OCD
Enable JTAG
Enable SPI Serial Program and
Data Downloading
Oscillator options
EEPROM memory is preserved
through the Chip Erase
for details)
for details)
Select Reset Vector
Select Boot Size (see
Select Boot Size (see
for details.
Table 112
Table 112
Default Value
1 (unprogrammed)
0 (programmed)
1 (unprogrammed)
1 (unprogrammed, BOD
disabled)
0 (programmed)
0 (programmed)
0 (programmed)
1 (unprogrammed)
Default Value
1 (unprogrammed, OCD
disabled)
0 (programmed, JTAG
enabled)
0 (programmed, SPI prog.
enabled)
1 (unprogrammed)
1 (unprogrammed,
EEPROM not preserved)
0 (programmed)
0 (programmed)
1 (unprogrammed)
ATmega64(L)
(1)
(2)
(2)
(2)
(1)
(2)
Table 14 on page 43
Table 112 on page 289
(3)
(3)
Table 6 on
“Clock
292
for