| Integrated Circuits |
|---|
| ATtiny85 |
|---|
| 8-bit AVR ®microcontroller |
| PDF datasheet |
| (PCINT5/RESET /ADC0/dW) PB5 | 1 • | 8 | Vcc |
| (PCINT3/XTAL1/CLKI/OC1B /ADC3) PB3 | 2 | 7 | PB2 (SCK/USCK/SCL/ADC1/T0/INT0/PCINT2) |
| (PCINT4/XTAL2/CLKO/OC1B/ADC2) PB4 | 3 | 6 | PB1 (MISO/DO/AIN1/OC0B/OC1A/PCINT1) |
| GND | 4 | 5 | PB0 (MOSI/DI/SDA/AIN0/OC0A/OC1A /AREF/PCINT0) |
| Pin | Symbol | Description |
|---|---|---|
| 1 | (PCINT5/RESET /ADC0/dW) PB5 | reset (active low); port B |
| 2 | (PCINT3/XTAL1/CLKI/OC1B /ADC3) PB3 | crystal connection; external clock input; port B |
| 3 | (PCINT4/XTAL2/CLKO/OC1B/ADC2) PB4 | crystal connection; clock output; port B |
| 4 | GND | ground |
| 5 | PB0 (MOSI/DI/SDA/AIN0/OC0A/OC1A /AREF/PCINT0) | SPI master output/slave input; 2-wire data; ADC reference; port B |
| 6 | PB1 (MISO/DO/AIN1/OC0B/OC1A/PCINT1) | SPI master input/slave output; port B |
| 7 | PB2 (SCK/USCK/SCL/ADC1/T0/INT0/PCINT2) | SPI master clock; 2-wire clock; external interrupt 0; port B |
| 8 | Vcc | supply voltage |
| Specifications |
|---|
| (typical values under recommended operating conditions, unless specified) |
| Parameter | Value | Unit |
|---|---|---|
| Flash memory |
2K (ATtiny25) 4K (ATtiny45) 8K (ATtiny85) |
bytes |
| Internal SRAM |
128 (ATtiny25) 256 (ATtiny45) 512 (ATtiny85) |
bytes |
| EEPROM |
128 (ATtiny25) 256 (ATtiny45) 512 (ATtiny85) |
bytes |
| Programmable I/O lines | 6 | |
| Maximum clock frequency | 20 | MHz |
| Note |
|---|
| Data is maintained by an independent source and accuracy is not guaranteed. Check with the manufacturer's datasheet for up-to-date information. |
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