Overview
The Atmel ATmega48/88/168 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 ATmega48/88/168 achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize power consumption versus processing speed.
Features
High performance, low power Atmel AVR 8-bit microcontroller
Advanced RISC architecture
– 131 powerful instructions – most single clock cycle execution
– 32 × 8 general purpose working registers
– Fully static operation
– Up to 20 MIPS throughput at 20MHz
– On-chip 2-cycle multiplier
High endurance non-volatile memory segments
– 4/8/16 Kbytes of in-system self-programmable flash program memory
– 256/512/512 bytes EEPROM
– 512/1K/1Kbytes internal SRAM
– Write/erase cyles: 10,000 flash/100,000 EEPROM
– Data retention: 20 years at 85°C/100 years at 25°C()
– 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
QTouch library support
– Capacitive touch buttons, sliders and wheels
– QTouch and QMatrix acquisition
– Up to 64 sense channels
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 (Philips I2C compatible)
– Programmable watchdog timer with separate on-chip oscillator
– On-chip analog comparator
– Interrupt and wake-up on pin change
Special microcontroller features
– DebugWIRE on-chip debug system
– 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-pad QFN/MLF
Operating voltage:
– 1.8V - 5.5V for Atmel ATmega48V/88V/168V
– 2.7V - 5.5V for Atmel ATmega48/88/168
Temperature range:
– -40°C to 85°C
Speed grade:
– ATmega48V/88V/168V: 0 - 4MHz @ 1.8V - 5.5V, 0 - 10MHz @ 2.7V - 5.5V
– ATmega48/88/168: 0 - 10MHz @ 2.7V - 5.5V, 0 - 20MHz @ 4.5V - 5.5V
Low power consumption
– Active mode:
250μA at 1MHz, 1.8V
15μA at 32kHz, 1.8V (including oscillator)
– Power-down mode:
0.1μA at 1.8V
Atmel (Microchip Technology) - Atmel was acquired by Microchip in April 2016. Atmel Corporation is an industry leader in the design and manufacture of advanced semiconductors, with focus on microcontrollers, nonvolatile memory, logic, radio frequency (RF) components and sensors. These functions are marketed as standard products, application-specific standard products (ASSPs) or customer-specific products (ASICs) in order to provide a rapid and flexible response to the needs of Atmel’s customers.
