ata5773 ATMEL Corporation, ata5773 Datasheet - Page 56
ata5773
Manufacturer Part Number
ata5773
Description
Microcontroller With Uhf Ask/fsk Transmitter
Manufacturer
ATMEL Corporation
Datasheet
1.ATA5773.pdf
(284 pages)
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2. Overview
4
ATtiny24/44/84
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 32
registers are directly connected to the Arithmetic Logic Unit (ALU), allowing two independent
registers to be accessed in one single instruction executed in one clock cycle. The resulting
architecture is more code efficient while achieving throughputs up to ten times faster than con-
ventional CISC microcontrollers.
GND
VCC
Block Diagram
PROGRAMMING
INSTRUCTION
PROGRAM
PROGRAM
REGISTER
INSTRUCTION
COUNTER
CONTROL
DECODER
FLASH
LINES
LOGIC
DATA REGISTER
PORT A
PORT A DRIVERS
ISP INTERFACE
PA7-PA0
REGISTERS
POINTER
REGISTER
PURPOSE
GENERAL
STATUS
STACK
SRAM
ALU
X
Y
Z
REG.PORT A
DATA DIR.
8-BIT DATABUS
ADC
MCU CONTROL
MCU STATUS
OSCILLATOR
WATCHDOG
INTERRUPT
REGISTER
REGISTER
INTERNAL
COUNTER0
COUNTER1
EEPROM
TIMER/
TIMER/
DATA REGISTER
TIMER
UNIT
PORT B
PORT B DRIVERS
PB3-PB0
OSCILLATORS
CALIBRATED
OSCILLATOR
TIMING AND
REG.PORT B
INTERNAL
CONTROL
DATA DIR.
8006G–AVR–01/08
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