ATmega64 Atmel Corporation, ATmega64 Datasheet - Page 20
ATmega64
Manufacturer Part Number
ATmega64
Description
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
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2490Q–AVR–06/10
The Indirect with Displacement mode reaches 63 address locations from the base address given
by the Y- or Z-register.
When using register indirect addressing modes with automatic pre-decrement and post-incre-
ment, the address registers X, Y, and Z are decremented or incremented.
The 32 general purpose working registers, 64 I/O Registers, 160 extended I/O Registers, and
the 4,096 bytes of internal data SRAM in the ATmega64 are all accessible through all these
addressing modes. The Register File is described in
13.
Figure 9. Data Memory Map
Memory Configuration A
160 Ext I/O Reg.
64 I/O Registers
External SRAM
Internal SRAM
Data Memory
32 Registers
(0 - 64K x 8)
(4096 x 8)
$0000 - $001F
$0100
$10FF
$1100
$FFFF
$0020 - $005F
$0060 - $00FF
Memory Configuration B
“General Purpose Register File” on page
64 I/O Registers
Internal SRAM
External SRAM
Data Memory
32 Registers
(0 - 64K x 8)
(4000 x 8)
ATmega64(L)
$0FFF
$1000
$0000 - $001F
$0020 - $005F
$0060
$FFFF
20