Overview – Rainbow Electronics ATtiny10 User Manual
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8127B–AVR–08/09
ATtiny4/5/9/10
2.
Overview
ATtiny4/5/9/10 are low-power CMOS 8-bit microcontrollers based on the compact AVR
enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the
ATtiny4/5/9/10 achieve throughputs approaching 1 MIPS per MHz, allowing the system designer
to optimize power consumption versus processing speed.
Figure 2-1.
Block Diagram
The AVR core combines a rich instruction set with 16 general purpose working registers and
system registers. All 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 compact and code efficient while achieving throughputs up to ten
times faster than conventional CISC microcontrollers.
STACK
POINTER
SRAM
PROGRAM
COUNTER
PROGRAMMING
LOGIC
ISP
INTERFACE
INTERNAL
OSCILLATOR
WATCHDOG
TIMER
RESET FLAG
REGISTER
MCU STATUS
REGISTER
TIMER/
COUNTER0
CALIBRATED
OSCILLATOR
TIMING AND
CONTROL
INTERRUPT
UNIT
ANALOG
COMPARATOR
ADC
GENERAL
PURPOSE
REGISTERS
X
Y
Z
ALU
STATUS
REGISTER
PROGRAM
FLASH
INSTRUCTION
REGISTER
INSTRUCTION
DECODER
CONTROL
LINES
V
CC
RESET
DATA REGISTER
PORT B
DIRECTION
REG. PORT B
DRIVERS
PORT B
GND
PB3:0
8-BIT DATA BUS