PIN and Block DIAGRAM
What is ATTINY85-20PU？
ATTINY85-20PU is CMOS high performance 8-bit low power microcontroller design based on AVR enhanced RISC structure using microchip technology which combines programable 8Kb flash program memory with 6 general-purpose I/O ports, 512B EEPROM, 32 general-purpose registers and operates at 20MHz reference frequency.It comes with 8-PDIP packages and includes one 8 bit high-speed timer/counter, one-bit timer/counter with compare modes,internal and external interrupts, programmable watchdog timer with internal oscillator,USI and 3 power-saving modes. By allowing the system designer to provide optimization to processing speed and power consumption, the ATTINY85-20PU achieves throughputs approaching 20 MIPS for 20MHz by implementing powerful instructions in a single clock cycle.
ATTINY85-20PU is designed and manufactured with Atmel’s nonvolatile high-density memory technology. The ISP flash in chip let the program to be reprogrammed in-system by using SPI serial interface. The ATTINY85-20PU is a well built powerful microcontroller that offers a highly flexible and cost-effective solution to many embedded control applications by merging In-System Self-Programmable Flash with 8-bit RISC CPU on a monolithic chip.
The ATTINY85-20PU is supported with a full suite of program and system development tools including in-circuit emulators, C compilers, evaluation kits, macro assemblers, and program debugger/simulators.
Pin Configuration
| PIN Name | PIN Description |
| VCC | Supply voltage |
| GND | Ground |
| PORT B | 6-bit bi-directional I/O ports with internal pull-up resistors |
| RESET | Reset Input |
Features
- Low power AVR 8-bit microcontroller with high performance
- Advanced RISC structure
- Non-volatile data memories and program
- In-system self-programmable flash of 8KB with 10,000 write/erase cycles.
- In system programmable EEPROM of 512B with 100,000 writes/erase cycles.
- Internal SRAM of 512B
- 10,000 Flash/ 100,000 EEPROM write/erase cycles
- 20 years at 85°C/ 100 years at 25°C data retention
- Software security programming lock for Flash and EEPROM data.
- Peripheral Features
- Two PWM channels and 8-bit timer/counter with Prescaler
- 8-bit High-Speed Timer/Counter with Separate Prescaler
- Universal Serial Interface with Start Condition Detector
- 10-bit ADC
- On-chip Analog Comparator
- Programmable Watchdog Timer with Separate On-chip Oscillator
- On-chip debug system
- In system programmable through SP port
- Low Power Idle, ADC Noise Reduction, and Power-down Modes
- Programmable Brown-out Detection Circuit
- External and Internal Interrupt Sources
- Enhanced Power-on Reset Circuit
- Internal Calibrated Oscillator
- Operates at 2.7V to 5.5V voltages
- Speed grade 0 – 10 MHz @ 2.7 – 5.5V, 0 – 20 MHz @ 4.5 – 5.5V
- Industrial Temperature Range
- Low Power Consumption
– Active Mode:
- 1 MHz, 1.8V: 300 µA
– Power-down Mode:
- µA at 1.8V
EQUIVALENT AND ALTERNATIVES
- ATTINY85-10SH
Applications
There are many applications of ATTINY85-10SH in embedded design, development and control systems such as
- Automation and control process
- consumer electronics
- Senors and instrumentation
- appliances
- monitoring medical equipment
- circuitry to control processes.
- motor control
- rectification
- power regulation
- DAC applications.
DIMENSIONS
ATTINY85-20PU Related Products Prices
ATTINY85-20PU
Parts Mfr. Description Stock Prices Buy Now
Atmel IC MCU 8BIT 8KB FLASH 8DIP 11500 $1.149 Lowest 
ATTINY85-20SU Atmel C MCU 8BIT 8KB FLASH 8SOIC 1 $0.930 Lowest 
ATTINY85-15ST Atmel 8-bit Microcontroller with Programmable Flash 16 RFQ
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