ATMEGA48-20AU, 8-bit Micro Controllers, MCU 4kB Flash 0.256kB, EEPROM 23 I/O Pins

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Basic Info

Payment Type:	T/T

Product Description

Advanced RISC architecture

131 powerful instructions, most single clock cycle execution

32 x 8 general purpose working registers

Full static operation

Up to 20 MIPS throughput at 20MHz

On-chip 2-cycle multiplier

High endurance non-volatile memory segments

4/8/16Kb of in-system self-programmable flash program memory

256/512/512 bytes EEPROM

512/1/1K bytes internal SRAM

Write/erase cycles: 10,000 flash/100,000 EEPROM

Data retention: 20 years at 85°C/100 years at 25°C (1)

Optional boot code section with independent lock bits

In-system programming by on-chip boot program

True read-while-write operation

Programming lock for software security

Peripheral features:

Two 8-bit timer/counters with separate prescaler and compare mode
One 16-bit timer/counter with separate prescaler, compare mode and capture mode
Real-time counter with separate oscillator
Six PWM channels
8-channel 10-bit ADC in TQFP and QFN/MLF package
6-channel 10-bit ADC in PDIP package
Programmable serial USART
Master/slave SPI serial interface
Byte-oriented 2-wire serial interface
Programmable watch dog timer with separate on-chip oscillator
On-chip analog comparator
Interrupt and wake-up on pin change

Special micro-controller features:

Power-on reset and programmable brown-out detection
Internal calibrated oscillator
External and internal interrupt sources
Five sleep modes: idle, ADC noise reduction, power-save, power-down, and standby

I/O and packages:

23 programmable I/O lines
28-pin PDIP, 32-lead TQFP, 28-pad QFN/MLF and 32-padQFN/MLF

Operating voltages:

1.8 to 5.5V for AT mega 48V/88V/168V
2.7 to 5.5V for AT mega 48/88/168

Temperature range: -40° to 85°C

Two 8-bit timer/counters with separate prescaler and compare mode

One 16-bit timer/counter with separate prescaler, compare mode and capture mode

Real-time counter with separate oscillator

Six PWM channels

8-channel 10-bit ADC in TQFP and QFN/MLF package

6-channel 10-bit ADC in PDIP package

Programmable serial USART

Master/slave SPI serial interface

Byte-oriented 2-wire serial interface

Programmable watch dog timer with separate on-chip oscillator

On-chip analog comparator

Interrupt and wake-up on pin change

Power-on reset and programmable brown-out detection

Internal calibrated oscillator

External and internal interrupt sources

Five sleep modes: idle, ADC noise reduction, power-save, power-down, and standby

23 programmable I/O lines

28-pin PDIP, 32-lead TQFP, 28-pad QFN/MLF and 32-padQFN/MLF

1.8 to 5.5V for AT mega 48V/88V/168V

2.7 to 5.5V for AT mega 48/88/168

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