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ATTINY85-20SU The ATTINY85-20SU is an 8-bit AVR microcontroller from Microchip Technology featuring 8KB Flash memory, 512B RAM, and 512B EEPROM. It operates at up to 20 MHz and comes in an 8-SOIC surface mount package.
Mfr Part #:

ATTINY85-20SU

Available from 4 distributors
Mfr Name: Microchip Technology
Microchip Technology
The ATTINY85-20SU is an 8-bit AVR microcontroller from Microchip Technology featuring 8KB Flash memory, 512B RAM, and 512B EEPROM. It operates at up to 20 MHz and comes in an 8-SOIC surface mount package.
✓ Total Stock: 36,742 pcs

ATTINY85-20SU Available from 4 distributors

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Optech Co.,Limited ✓
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19,976 pcs
On Request
19976 pcs On Request 1 On Request On Request 21+20+ On Request On Request
Fe Components ✓
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9,963 pcs
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9963 pcs On Request 1 On Request On Request On Request On Request On Request
Xingangxin ✓
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5,415 pcs
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5415 pcs On Request 1 On Request On Request On Request On Request On Request
Smaxon Electronics ✓
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1,388 pcs
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1388 pcs On Request 1 On Request On Request 20+ On Request On Request
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ATTINY85-20SU Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Connectivity
Core Processor
Core Size
Data Converters
EEPROM Size
Mounting Type
Number of I
Number of Pins
Operating Temperature
Oscillator Type
Peripherals
Program Memory Size
Program Memory Type
RAM Size
Speed
Supplier Device Package
Voltage
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ATTINY85-20SU Description

Short technical summary and product information.

The ATTINY85-20SU is an 8-bit AVR microcontroller from Microchip Technology, part of the ATtiny85 series. It features a high-performance AVR RISC architecture with 120 instructions, most executed in a single clock cycle. The device offers 8KB of in-system programmable Flash memory, 512B of SRAM, and 512B of EEPROM, providing ample storage for embedded applications.

 

Operating from 2.7V to 5.5V, the microcontroller can run at up to 20 MHz when supplied with 4.5V-5.5V, or up to 10 MHz at lower voltages. It includes a 10-bit ADC with four single-ended and two differential channels (with programmable gain), four PWM channels, a Universal Serial Interface (USI) for serial communication, and a watchdog timer. Additional peripherals include brown-out detection, power-on reset, and an internal calibrated oscillator.

 

The ATTINY85-20SU is housed in an 8-SOIC surface mount package with 8 pins, suitable for compact designs. It operates over an industrial temperature range of -40°C to 85°C. Typical applications include embedded control, sensor interfaces, battery-powered devices, and space-constrained systems.

ATTINY85-20SU Quick Information

Product Type: Microcontroller
Series: ATtiny85
Canonical Name: Microchip Technology ATTINY85-20SU 8-bit AVR Microcontroller with 8KB Flash
Subcategory: 8-bit Microcontrollers

ATTINY85-20SU Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Yes

ATTINY85-20SU Features

  • 8-bit AVR core with 20 MHz speed.
  • 8KB Flash and 512B EEPROM memory.
  • 10-bit ADC with differential channels.
  • USI serial interface for connectivity.
  • Operates from 2.7V to 5.5V supply.

ATTINY85-20SU Applications

  • Ideal for embedded control applications.
  • Used in sensor interface designs.
  • Suitable for battery-powered devices.
  • Perfect for space-constrained designs.

ATTINY85-20SU FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the ATTINY85-20SU?

2.7V to 5.5V.

What is the maximum clock speed?

20 MHz at 4.5V-5.5V, 10 MHz at 2.7V-5.5V.

How much Flash memory does it have?

8KB.

What is the package type?

8-SOIC (0.209", 5.30mm Width) surface mount.

What is the operating temperature range?

-40°C to 85°C.

Is the ATTINY85-20SU RoHS compliant?

It is listed as RoHS3 Compliant, but this is unverified.

What peripherals are included?

USI, 10-bit ADC with 4 single-ended and 2 differential channels, 4 PWM channels, brown-out detect, POR, WDT.

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