Intelligent, Fast and Accurate Analog series of tinyAVR® MCUs

The ATtiny1627 family of AVR® microcontrollers (MCUs) is equipped with high-speed integrated analog, hardware-based Core Independent Peripherals (CIPs) and low-power performance for efficient real-time control and sensor node applications. For design flexibility and to optimize your board layout, this family of 4 KB to 32 KB Flash devices is available in SOIC, SSOP and VQFN packages ranging from 14 to 24 pins. These tinyAVR® MCUs are well suited for a wide range of industrial, consumer, appliance, automotive, sensor node and other applications. If your design is a closed-loop control system, the ATtiny1607 family is a great option. 

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Enabling Reliable Sensor Interfaces in Harsh Environments

Designers of reliable sensor end node applications require an MCU that can quickly and accurately measure and convert signals in harsh environments while also using power efficiently. Featuring a 12-bit differential Analog-to-Digital Converter (ADC) and a Programmable Gain Amplifier (PGA) with up to 16x gain, the ATtiny1627 family enables measurement of smaller amplitude signals, reclaims signals from noisy environments and performs fast conversion of the signals.

The accurate and temperature-stable internal 20 MHz RC oscillator, Configurable Custom Logic (CCL), Event System and Core Independent Peripherals significantly reduce the need for external components. The small 3 × 3 mm 20-pin VQFN package option further reduces the PCB footprint, enabling you to create extremely compact and cost-efficient designs.

Getting Started

Take Your Idea from Concept to Prototype

The ATtiny1627 Curiosity Nano board is the ideal platform for rapid prototyping with these tinyAVR MCUs. This USB-powered kit features an on-board programmer/debugger that seamlessly integrates with the MPLAB® X Integrated Development Environments (IDE). Its small form factor makes it excellent for breadboard soldering, or you can combine it with the Curiosity Nano Base for Click boards™, which features multiple mikroBUS™ sockets so you can easily add sensors, actuators or communications interfaces from Mikroelektronika’s extensive selection of Click boards.

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Functional Safety Ready for Safety-Critical Applications

Our ATtiny3227 family for safety-critical applications targets both industrial and automotive products. We also offer the MPLAB XC8 Functional Safety Compiler License, which is a TÜV SÜD-certified compiler package that supports 8-bit PIC® and AVR MCUs. Our ATtiny3227 ISO 26262 and IEC 61508 functional safety packages come with documents such as FMEDA reports and safety manuals.

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System Features

Real Time Response

Event System

The Event System allows peripherals to communicate directly with each other without involving the Central Processing Unit (CPU) or bus resources. The Event System network is independent of the traditional data bus paths. This means that different triggers at the peripheral level can result in an event, such as a timer’s interrupts triggering an action in another peripheral. The Event System has three independent channels for direct peripheral-to-peripheral signaling. This is a deterministic signaling method and a perfect fit for real-time applications. The events are handled at the peripheral level whether the CPU is occupied handling interrupts or in sleep mode.

Safety First

CRC, WWDT, BOD, POR, VLM

You can use the built-in features that support safety-critical applications to add robustness and reliability to your design. These include the Windowed Watchdog Timer (WWDT) for system supervision, the Cyclic Redundancy Check (CRC) for scanning Flash memory, and the Event System for fault detection. Other features include a Voltage Level Monitor (VLM), a Brown-Out Detector (BOD) and Power-On Reset (POR) for monitoring the supply voltage.

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Hardware Customization

Custom Logic

The Custom Logic peripheral is a programmable logic peripheral that can be connected to the device pins, events or other internal peripherals. Each Lookup Table (LUT) consists of three inputs: a truth table, an optional synchronizer and a filter and edge detector. An LUT can generate an output to be routed internally or to an I/O pin. This eliminates the need for external logic and reduces BOM cost.

Integrated Analog

12-bit ADC, PGA, Analog Comparator

The on-chip 12-bit, 375 ksps differential Analog-to-Digital Converter (ADC) features selectable internal voltage references with minimal temperature drift. Use the hardware averaging and oversampling to improve noise suppression and accuracy for analog inputs. Averaging and threshold detection enable the MCU to remain asleep for longer periods, significantly reducing power consumption.

The Programmable Gain Amplifier (PGA) supports up to 16x gain making it possible to retrieve small signals in noisy environments.

Family Offering (Pin Count vs. Memory)

ATtiny1627 Key Attributes

  • Internal 20 MHz oscillator
  • Up to 15-channel, 375 ksps 12-bit differential and single-ended Analog-to-Digital Converter (ADC)
  • Programmable Gain Amplifier (PGA) supporting up to 16x gain
  • Cyclic Redundancy Check (CRC) scan
  • 16-bit Real Time Clock (RTC) and Periodic Interrupt Timer

  • Configurable Custom Logic (CCL) peripheral
  • Six-channel Peripheral Event System
  • Analog comparator with scalable reference input
  • Configurable, internally generated reference voltage
  • Two (USARTs), one SPI, one dual-mode TWI

ATtiny1627 Products

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