ATMEGA8515_06 ATMEL [ATMEL Corporation], ATMEGA8515_06 Datasheet - Page 3

• Manufacturer Part Number: ATMEGA8515_06
• Description: 8-bit Microcontroller with 8K Bytes In-System Programmable Flash
• Manufacturer: ATMEL [ATMEL Corporation]

Overview
Block Diagram
2512JS–AVR–10/06
The ATmega8515 is a low-power CMOS 8-bit microcontroller based on the AVR
enhanced RISC architecture. By executing powerful instructions in a single clock cycle,
the ATmega8515 achieves throughputs approaching 1 MIPS per MHz allowing the sys-
tem designer to optimize power consumption versus processing speed.
Figure 2. Block Diagram
VCC
GND
PORTA DIGITAL INTERFACE
PORTA DRIVERS/BUFFERS
INSTRUCTION
INSTRUCTION
AVR CPU
PROGRAMMING
CONTROL
PROGRAM
PROGRAM
REGISTER
DECODER
COUNTER
FLASH
LINES
PORTB DIGITAL INTERFACE
PORTB DRIVERS/BUFFERS
LOGIC
+
-
PA0 - PA7
PB0 - PB7
REGISTERS
INTERFACE
PURPOSE
REGISTER
GENERAL
POINTER
STATUS
STACK
COMP.
SRAM
ALU
SPI
Y
X
Z
INTERFACE
PE0 - PE2
DRIVERS/
BUFFERS
DIGITAL
PORTE
PORTE
OSCILLATOR
WATCHDOG
COUNTERS
INTERRUPT
MCU CTRL.
INTERNAL
& TIMING
EEPROM
TIMERS/
USART
PORTC DIGITAL INTERFACE
TIMER
PORTD DIGITAL INTERFACE
PORTC DRIVERS/BUFFERS
PORTD DRIVERS/BUFFERS
UNIT
PC0 - PC7
PD0 - PD7
ATmega8515(L)
OSCILLATOR
CALIBRATED
OSCILLATOR
INTERNAL
XTAL1
XTAL2
RESET
3