ATTINY28 - Microcontroller Microchip - Free user manual and instructions
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| Product Type | 8-bit Microcontroller |
| Brand | Microchip |
| Model | ATTINY28 |
| Package | DIP-8 or SOIC-8 |
| Supply Voltage | 2.7V - 5.5V |
| Core Clock Speed | Up to 20 MHz |
| Program Memory (Flash) | 2 KB |
| Data Memory (SRAM) | 128 B |
| EEPROM | 64 B |
| Number of I/O Pins | 8 (including RST, VCC, GND) |
| Analog Inputs | 4-channel 10-bit ADC |
| Timers | 1 x 8-bit, 1 x 16-bit |
| PWM Channels | 2 |
| Operating Temperature Range | -40°C to +85°C |
| Dimensions (approx) | 9.27 x 6.35 mm (SOIC-8) |
| Weight (approx) | 0.5 g |
| Power Consumption (active) | ~5 mA at 5V, 1 MHz |
| Programming Interface | ISP (In-System Programming) |
| Special Features | Low power, internal oscillator, watchdog timer |
| Cleaning and Maintenance | Keep dry, avoid static discharge, use no-clean flux |
| Safety Precautions | Use ESD protection, do not exceed voltage ratings |
| Spare Parts / Repairability | Non-repairable; replacement recommended if faulty |
Frequently Asked Questions - ATTINY28 Microchip
What is the supply voltage range for the ATTINY28?
The ATTINY28 operates from 2.7V to 5.5V.
How much flash memory does the ATTINY28 have?
It has 2 KB of in-system programmable flash memory.
What is the maximum clock speed of the ATTINY28?
It can run up to 20 MHz at 5V.
Can the ATTINY28 be used in low-power applications?
Yes, it features multiple sleep modes and consumes as low as 0.1 µA in power-down mode.
What programming interface does the ATTINY28 support?
It supports In-System Programming (ISP) via a 6-pin header.
How many I/O pins does the ATTINY28 have?
It has 8 pins total, including VCC, GND, and RESET. The available I/O depends on pin functions.
Does the ATTINY28 have an internal oscillator?
Yes, it has an internal RC oscillator calibrated to 1 MHz, configurable to other frequencies.
Is the ATTINY28 compatible with Arduino?
Not directly, but it can be programmed using AVR tools like AVRDUDE and an ISP programmer.
What is the operating temperature range?
It operates from -40°C to +85°C.
Can I use the ATTINY28 for PWM output?
Yes, it has 2 PWM channels from the timer/counter.
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