ATTINY28 Datasheet PDF

●Description

●The ATtiny28 is a low-power CMOS 8-bit microcontroller based on the AVR RISC architecture. By executing powerful instructions in a single clock cycle, the ATtiny28 achieves throughputs approaching 1 MIPS per MHz, allowing the system designer to optimize power consumption versus processing speed. The AVR core combines a rich instruction set with 32 general-purpose working registers.

●Features

●• Utilizes the AVR® RISC Architecture

●• AVR – High-performance and Low-power RISC Architecture

●– 90 Powerful Instructions – Most Single Clock Cycle Execution

●– 32 x 8 General-purpose Working Registers

●– Up to 4 MIPS Throughput at 4 MHz

●• Nonvolatile Program Memory

●– 2K Bytes of Flash Program Memory

●– Endurance: 1,000 Write/Erase Cycles

●– Programming Lock for Flash Program Data Security

●• Peripheral Features

●– Interrupt and Wake-up on Low-level Input

●– One 8-bit Timer/Counter with Separate Prescaler

●– On-chip Analog Comparator

●– Programmable Watchdog Timer with On-chip Oscillator

●– Built-in High-current LED Driver with Programmable Modulation

●• Special Microcontroller Features

●– Low-power Idle and Power-down Modes

●– External and Internal Interrupt Sources

●– Power-on Reset Circuit with Programmable Start-up Time

●– Internal Calibrated RC Oscillator

●• Power Consumption at 1 MHz, 2V, 25°C

●– Active: 3.0 mA

●– Idle Mode: 1.2 mA

●– Power-down Mode: <1 µA

●• I/O and Packages

●– 11 Programmable I/O Lines, 8 Input Lines and a High-current LED Driver

●– 28-lead PDIP, 32-lead TQFP, and 32-pad MLF

●• Operating Voltages

●– VCC: 1.8V - 5.5V for the ATtiny28V

●– VCC: 2.7V - 5.5V for the ATtiny28L

●• Speed Grades

●– 0 - 1.2 MHz for the ATtiny28V

●– 0 - 4 MHz For the ATtiny28L