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 consumption versus processing speed.
Features
• High Performance, Low Power AVR® 8-Bit Microcontroller
• Advanced RISC Architecture
– 123 Powerful Instructions – Most Single Clock Cycle Execution
– 32 x 8 General Purpose Working Registers
– Fully Static Operation
• High Endurance Non-volatile Memory Segments
– 4K/8K Bytes of In-System Self-Programmable Flash Program Memory
– 64/64 Bytes EEPROM
– 256/512 Bytes Internal SRAM
– Write/Erase Cycles: 10,000 Flash/100,000 EEPROM
– Data Retention: 20 years at 85°C / 100 years at 25°C
– Programming Lock for Software Security
• Peripheral Features
– One 8-bit Timer/Counter with Separate Prescaler and Compare Mode
– One 16-bit Timer/Counter with Prescaler, and Compare and Capture
Modes
– 6- or 8-channel 10-bit ADC
– 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
– In-System Programmable via SPI Port
– Power-On Reset and Programmable Brown-Out Detection
– Internal Calibrated Oscillator
– External and Internal Interrupt Sources
– Three Sleep Modes: Idle, ADC Noise Reduction and Power-Down
– On-Chip Temperature Sensor
• I/O and Packages
– 24 Programmable I/O Lines:
• 28-pin PDIP
• 28-pad QFN/MLF
– 28 Programmable I/O Lines:
• 32-lead TQFP
• 32-pad QFN/MLF
• 32-ball UFBGA
• Operating Voltage:
– 1.8 – 5.5V
• Temperature Range:
– -40°C to +85°C
• Speed Grade:
– 0 – 4 MHz @ 1.8 – 5.5V
– 0 – 8 MHz @ 2.7 – 5.5V
– 0 – 12 MHz @ 4.5 – 5.5V
• Low Power Consumption
– Active Mode: 1 MHz, 1.8V: 240 µA
– Power-Down Mode: 0.1 µA at 1.8V
