ATA5771_09 ATMEL [ATMEL Corporation], ATA5771_09 Datasheet - Page 56
ATA5771_09
Manufacturer Part Number
ATA5771_09
Description
Microcontroller with UHF ASK/FSK Transmitter
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet
1.ATA5771_09.pdf
(287 pages)
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2. Overview
2.1
7701C–AVR–12/08
Block Diagram
The ATtiny24/44/84 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 ATtiny24/44/84
achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize
power consumption versus processing speed.
Figure 2-1.
The AVR core combines a rich instruction set with 32 general purpose working registers. All the
32 registers are directly connected to the Arithmetic Logic Unit (ALU), allowing two independent
GND
VCC
Block Diagram
PROGRAMMING
INSTRUCTION
PROGRAM
PROGRAM
REGISTER
INSTRUCTION
COUNTER
CONTROL
DECODER
FLASH
LINES
LOGIC
DATA REGISTER
PORT A
PORT A DRIVERS
PA7-PA0
ISP INTERFACE
REGISTERS
POINTER
REGISTER
PURPOSE
GENERAL
STATUS
STACK
SRAM
ALU
X
Y
Z
REG.PORT A
DATA DIR.
8-BIT DATABUS
ADC
MCU CONTROL
OSCILLATOR
MCU STATUS
WATCHDOG
INTERRUPT
REGISTER
REGISTER
INTERNAL
COUNTER0
COUNTER1
EEPROM
TIMER/
TIMER/
DATA REGISTER
TIMER
UNIT
PORT B
ATtiny24/44/84
PORT B DRIVERS
PB3-PB0
OSCILLATORS
CALIBRATED
OSCILLATOR
TIMING AND
REG.PORT B
INTERNAL
CONTROL
DATA DIR.
3
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