ATTINY48(2008) Ver la hoja de datos (PDF) - Atmel Corporation

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ATTINY48
(Rev.:2008)

8-bit Microcontroller with 4/8K Bytes In-System Programmable Flash

Atmel Corporation 

ATtiny48/88

2. Overview

The ATtiny48/88 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 ATtiny48/88 achieves

throughputs approaching 1 MIPS per MHz allowing the system designer to optimize power con-

sumption versus processing speed.

2.1 Block Diagram

Figure 2-1. Block Diagram

Watchdog

Timer

Watchdog

Oscillator

Oscillator

Circuits /

Clock

Generation

EEPROM

Power

Supervision

POR / BOD &

RESET

Flash

debugWIRE

Program

Logic

SRAM

CPU

8008BS–AVR–06/08

8bit T/C 0

16bit T/C 1

Analog

SPI

Comp.

A/D Conv.

2

6

Internal

Bandgap

TWI

PORT D (8)

PORT B (8)

PORT C (8)

PORT A (4)

PD[0..7]

PB[0..7]

RESET

CLKI

PC[0..7] PA[0..3] (in TQFP and MLF)

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

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.

5

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