ATmega8535 Atmel Corporation, ATmega8535 Datasheet - Page 3

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ATmega8535

Manufacturer Part Number
ATmega8535
Description
Manufacturer
Atmel Corporation
Datasheets

Specifications of ATmega8535

Flash (kbytes)
8 Kbytes
Pin Count
44
Max. Operating Frequency
16 MHz
Cpu
8-bit AVR
# Of Touch Channels
16
Hardware Qtouch Acquisition
No
Max I/o Pins
32
Ext Interrupts
3
Usb Speed
No
Usb Interface
No
Spi
1
Twi (i2c)
1
Uart
1
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)
0.5
Eeprom (bytes)
512
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
3
Output Compare Channels
4
Input Capture Channels
1
Pwm Channels
4
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes

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Overview
Block Diagram
2502KS–AVR–10/06
The ATmega8535 is a low-power CMOS 8-bit microcontroller based on the AVR
enhanced RISC architecture. By executing instructions in a single clock cycle, the
ATmega8535 achieves throughputs approaching 1 MIPS per MHz allowing the system
designer to optimize power consumption versus processing speed.
Figure 2. Block Diagram
V
GND
AVCC
CC
AREF
PROGRAMMING
INSTRUCTION
INSTRUCTION
AVR CPU
CONTROL
PROGRAM
PROGRAM
COUNTER
REGISTER
DECODER
FLASH
LINES
PORTA DIGITAL INTERFACE
MUX &
LOGIC
PORTB DIGITAL INTERFACE
PORTA DRIVERS/BUFFERS
PORTB DRIVERS/BUFFERS
ADC
+
-
PA0 - PA7
PB0 - PB7
REGISTERS
INTERFACE
INTERFACE
GENERAL
PURPOSE
REGISTER
POINTER
STATUS
STACK
COMP.
SRAM
ALU
ADC
SPI
X
Y
Z
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
TWI
PC0 - PC7
PD0 - PD7
ATmega8535(L)
OSCILLATOR
OSCILLATOR
OSCILLATOR
CALIBRATED
INTERNAL
XTAL1
XTAL2
RESET
3

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