ATTINY9 - Microcontroller Microchip - Free user manual and instructions
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| Product Type | Microcontroller |
| Brand | Microchip |
| Model | ATTINY9 |
| Architecture | 8-bit AVR |
| Package Type | 8-pin SOIC, 8-pin PDIP, or 8-pin SOT-23 |
| Dimensions (typical) | 5.0 x 4.0 x 1.0 mm (SOT-23) |
| Weight | Approx. 0.1 g |
| Operating Voltage | 1.8 V to 5.5 V |
| Flash Memory | 1 KB |
| SRAM | 64 bytes |
| EEPROM | 32 bytes |
| Maximum Clock Speed | 12 MHz at 2.7 V, 8 MHz at 1.8 V |
| Digital I/O Pins | Up to 6 |
| Analog Inputs | 4 ADC channels (10-bit) |
| Timers | 1 x 8-bit timer |
| Special Features | Internal oscillator, watchdog timer, brown-out detection |
| Power Consumption | Active: ~1.5 mA at 1.8 V, 1 MHz; Sleep: < 0.1 µA |
| Programming Interface | In-System Programming (ISP) via SPI |
| Operating Temperature | -40°C to +85°C |
| Repairability | Non-repairable; replace if defective |
Frequently Asked Questions - ATTINY9 Microchip
How do I program the ATTINY9?
Use an AVR ISP programmer (e.g., Atmel-ICE, USBasp) connected to the SPI pins (MISO, MOSI, SCK, RESET). Software like AVRDUDE or Microchip Studio can write the firmware to flash memory.
What is the maximum clock speed of the ATTINY9?
The maximum clock speed depends on voltage: 12 MHz at 2.7 V and 8 MHz at 1.8 V. It can also run from an internal oscillator calibrated to 8 MHz.
Can I use the ATTINY9 with a battery?
Yes, it operates from 1.8 V to 5.5 V, making it suitable for battery-powered applications. It has low power sleep modes as low as 0.1 µA.
How many GPIO pins does the ATTINY9 have?
It has up to 6 digital I/O pins (depending on package). Some pins also support analog input, PWM, or external interrupts.
Does the ATTINY9 have an ADC?
Yes, it features a 10-bit ADC with up to 4 analog channels on dedicated pins.
What are the power consumption figures?
Active mode: about 1.5 mA at 1.8 V, 1 MHz. Sleep mode (power-down): less than 0.1 µA. Idle mode: ~0.5 mA.
Can I use the ATTINY9 for real-time applications?
It includes an 8-bit timer with compare modes for PWM generation or timing. For precise real-time tasks, use the internal oscillator or an external crystal.
What development tools are compatible?
Compatible with Microchip Studio (formerly Atmel Studio), AVR-GCC, and Arduino IDE (with someone third-party core). Programmers: Atmel-ICE, AVR Dragon, USBasp, etc.
How do I reset the ATTINY9?
Apply a low level on the RESET pin (active low) for at least 2.5 µs. The pin has an internal pull-up. Brown-out detection can also trigger a reset.
Where can I find the datasheet?
Download the official ATTINY9 datasheet from Microchip's website (www.microchip.com) or from the user manual page on notice-facile.com.
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Product information
Brand : Microchip
Model : ATTINY9
Category : Microcontroller