ATTINY816-MF - 20MHz 8KB AVR MCU | Microchip Technology
N.º da peça: ATTINY816-MF ✓ AtivoATTINY816-MF Visão geral
A microcontroller is a programmable semiconductor that integrates a CPU core, memory, and peripherals on one die. The ATTINY816-MF belongs to the tinyAVR 1-series, a low-power 8-bit MCU family intended for compact control systems. Its architecture combines conventional AVR processing with Core Independent Peripherals, allowing events and sleep conditions to be handled with reduced CPU involvement. This places the device within the hierarchy of MCU, embedded controller, and semiconductor.
The device provides 8 KB of Flash for program storage, 512 bytes of SRAM for working data, and 128 bytes of EEPROM for nonvolatile data retention. The AVR processor can operate at up to 20 MHz and includes a hardware multiplier. According to the Microchip product page and ATtiny416/816 datasheet, the tinyAVR 1-series also incorporates Event System and SleepWalking capabilities, providing low-power event handling and accurate analog peripherals.
The ATTINY816-MF is identified with a 3.3 V and 5 V operating indication and an industrial temperature rating of 125 °C. Its 20-pin VQFN package supports compact PCB layouts while providing access to the ATtiny816 peripheral set. The -MF ordering code identifies the VQFN package supplied in a tray, while the underlying ATTINY816 device provides 8 KB Flash and the 20 MHz operating capability described by Microchip.
Typical uses include compact industrial controllers, low-power sensor nodes, building-control modules, appliance controls, and embedded products that need deterministic low-power operation without a high-performance processor core. The 512-byte SRAM is appropriate for control-oriented workloads, while 8 KB of Flash accommodates a focused embedded application and boot or configuration routines.
Designers should match the exposed-pad connection and thermal requirements to the PCB assembly process, place decoupling capacitors near the supply pins, and confirm the 3.3 V or 5 V operating condition before programming. Firmware and peripheral assignments should be checked against the ATtiny416/816 datasheet because changing only the order suffix can alter package dimensions, temperature grade, or delivery format without changing the base-device function.
This product page combines the manufacturer specifications, package identity, ordering information, documented drop-in candidates, and practical implementation guidance. It is intended to help engineers identify the correct ATTINY816 package and evaluate whether the 20 MHz tinyAVR architecture, compact memory configuration, and low-power peripherals meet a specific embedded-control requirement.
Alternativas drop-in para ATTINY816-MF — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com ATTINY816-MF (mesmo formato e footprint) — diferindo em CPU Architecture, Package, Pin Count, Product Type.
ATTINY816-MNR
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
ATTINY816-MN
✅ Drop-InConsulte o preço
Ver ficha técnica →ATTINY416-MNR
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
ATTINY816-MF Classificações máximas e características elétricas
| Microcontroller Type | 8-bit AVR tinyAVR 1-series microcontroller |
| Maximum CPU Frequency | 20 MHz |
| Flash Memory | 8 KB |
| SRAM | 512 bytes |
| EEPROM | 128 bytes |
| Program Memory Organization | 8K x 8 bits |
| CPU Architecture | AVR RISC with hardware multiplier |
| ADC Resolution | 10 bits |
| Tensão de alimentação | 3.3 V or 5 V |
| Temperatura de operação | 125 °C maximum |
| Encapsulamento | 20-pin VQFN, 3 mm x 3 mm |
| Package Type | VQFN-20 |
| Tipo de montagem | Surface mount |
| Peripheral Architecture | Core Independent Peripherals |
| Low-Power Features | Event System and SleepWalking |
| Functional Safety | Functional Safety (FuSa) Microcontroller |
| Green Compliance | Green |
| Order Code Packaging | Tray |
Configuração de pinos do ATTINY816-MF
| Pino 1 | PA0 — Port A input/output and analog input pin |
| Pino 2 | PA1 — Port A input/output and analog input pin |
| Pino 3 | PA2 — Port A input/output and analog input pin |
| Pino 4 | PA3 — Port A input/output and analog input pin |
| Pino 5 | PA4 — Port A input/output pin |
| Pino 6 | PA5 — Port A input/output pin |
| Pino 7 | PA6 — Port A input/output pin |
| Pino 8 | PA7 — Port A input/output pin |
| Pino 9 | PB4 — Port B input/output pin |
| Pino 10 | PB5 — Port B input/output pin |
| Pino 11 | PB6 — Port B input/output pin |
| Pino 12 | PB7 — Port B input/output pin |
| Pino 13 | PC7 — Port C input/output pin |
| Pino 14 | PC6 — Port C input/output pin |
| Pino 15 | PC5 — Port C input/output pin |
| Pino 16 | PC4 — Port C input/output pin |
| Pino 17 | PC3 — Port C input/output pin |
| Pino 18 | PC2 — Port C input/output pin |
| Pino 19 | PC1 — Port C input/output pin |
| Pino 20 | PC0 — Port C input/output pin |
Aplicações típicas
ATTINY816-MF é adequado para 6 aplicaçãos: Industrial Sensor Node, Building Control Module, Smart Appliance Controller, Battery-Powered Condition Monitor, Compact Control Board, Low-Power IoT Interface.
Industrial Sensor Node
The ATTINY816-MF fits compact industrial sensor nodes that must sample a signal, apply local filtering, and report results while consuming little board space. Its 20 MHz AVR processor provides adequate control performance, while 8 KB of Flash and 512 bytes of SRAM support focused acquisition and processing routines. SleepWalking and Event System functions can reduce CPU activity when measurements arrive infrequently. The 3.3 V or 5 V operating indication supports conventional industrial sensor interfaces, but the final supply and input limits must be checked against the manufacturer datasheet.
Recomendado
Building Control Module
The ATTINY816-MF can serve as the local controller in a building-control module for occupancy, temperature, or equipment-state monitoring. The 8-bit tinyAVR architecture is appropriate for deterministic supervisory logic, and the 512 bytes of SRAM can hold operational variables while 128 bytes of EEPROM preserve calibration or configuration data. Its 20-pin VQFN package reduces board area in distributed control boxes. Event-driven peripherals can help the module react to external conditions without continuous polling, improving suitability for always-installed infrastructure equipment.
Recomendado
Smart Appliance Controller
The ATTINY816-MF is appropriate for compact appliance controllers that coordinate switches, indicators, motors, and safety-related interlocks. A 20 MHz AVR core with a hardware multiplier provides responsive real-time control, while 8 KB of Flash is suitable for a focused application program. The 512-byte SRAM supports task state and communication buffers without requiring a larger memory footprint. The 3 mm by 3 mm VQFN package supports dense appliance boards, provided the exposed pad, soldering profile, and copper thermal area are designed according to the manufacturer package drawing.
Recomendado
Battery-Powered Condition Monitor
The ATTINY816-MF suits battery-powered condition monitors that periodically inspect a machine, vehicle, or remote asset and transmit a compact status record. The device combines 20 MHz processing capability with 8 KB of Flash, 512 bytes of SRAM, and 128 bytes of EEPROM, covering embedded logic, working state, and limited nonvolatile parameters. SleepWalking and Event System support can reduce unnecessary processing during idle periods. Power performance depends on the selected operating mode, clock configuration, and peripheral activity, so the sleep and active-current curves in the manufacturer datasheet should guide the battery budget.
Recomendado
Compact Control Board
The ATTINY816-MF is useful for compact educational, maker, and prototyping control boards because it combines AVR instruction-set familiarity with a small 20-pin VQFN footprint. The ATTINY816 Arduino and breakout-board ecosystem provides a familiar path for initial firmware evaluation. Moving from a development board to a custom board requires attention to the 3.3 V or 5 V supply arrangement, programming signals, decoupling, exposed-pad assembly, and the package-specific footprint. The 20 MHz core and 8 KB Flash make the device capable of modest real-time control and peripheral orchestration.
Recomendado
Low-Power IoT Interface
The ATTINY816-MF can act as the low-power interface controller in a small IoT node, handling local inputs and conditioning data before a communications module transmits it. Its 8 KB Flash program space and 512-byte SRAM suit lightweight protocol state machines, button handling, and sensor configuration rather than heavy packet processing. Event System and SleepWalking features can reduce CPU load during intermittent operation. The device should be selected around the complete interface power budget, including any radio or sensor loads, and the analog input and reference requirements must be checked in the ATtiny416/816 datasheet.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para ATTINY816-MF — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | ATTINY816-MNR | ATTINY816-MN | ATTINY416-MNR |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | VQFN-20 (3x3) | VQFN-20 (3x3) | VQFN-20 (3x3) | VQFN-20 (3x3) |
| Maximum CPU Frequency | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| Flash Memory | 8 KB | 8 KB | 8 KB | 4 KB |
| SRAM | 512 bytes | 512 bytes | 512 bytes | 256 bytes |
| EEPROM | 128 bytes | 128 bytes | 128 bytes | 128 bytes |
| CPU Architecture | 8-bit AVR with hardware multiplier | 8-bit AVR with hardware multiplier | 8-bit AVR with hardware multiplier | 8-bit AVR with hardware multiplier |
| Delivery Format | Tray | Tape and reel | Non-reel order format | Tape and reel |
| Peripheral Architecture | Core Independent Peripherals, Event System, and SleepWalking | Core Independent Peripherals, Event System, and SleepWalking | Core Independent Peripherals, Event System, and SleepWalking | Core Independent Peripherals, Event System, and SleepWalking |
Principais diferenciais
- Higher memory capacity than the ATTINY416 option (vs ATTINY416-MNR)
- Identical core and memory configuration in a tape-and-reel ordering option (vs ATTINY816-MNR)
- Compact 20-pin VQFN footprint with integrated AVR control (vs ATTINY816-MN)
Notas de projeto
Use the 20-pin VQFN package drawing from the manufacturer datasheet to create the PCB land pattern. Confirm the exposed-pad dimensions, thermal-via recommendation, paste mask, and reflow profile rather than deriving them from a generic QFN footprint. Place the decoupling network close to the supply and ground pins and preserve short return paths. The compact 3 mm by 3 mm package reduces board area, but it also requires tighter assembly planning than a leaded package.
Determine whether the board supplies 3.3 V or 5 V before laying out the power system. Use the manufacturer operating-limit and current tables to size the regulator, bulk capacitance, and local bypass network. Keep analog-reference requirements separate from general supply routing, and account for load current from the MCU, programming interface, external peripherals, and any attached communication module. This is particularly important in battery designs where standby current contributes directly to service life.
Do not assume that every ATTINY816 order suffix is interchangeable. ATTINY816-MF denotes the tray-delivered VQFN configuration, while other suffixes can change package, temperature grade, or delivery method. Before substituting a part, compare the complete ordering table, package drawing, exposed-pad connection, and pin multiplexing. When changing from ATTINY816 to ATTINY416, also verify that the firmware fits the lower memory capacity and that every required peripheral instance remains available.
Estimated: the VQFN exposed pad is the primary thermal path, so its connection to a solid copper area and ground plane should be confirmed in the PCB stack-up. Actual junction temperature depends on supply voltage, CPU utilization, ambient temperature, and the board's thermal resistance; these operating values are not specified here. Avoid relying only on the 125 °C device rating for thermal design. Validate the finished assembly using the manufacturer's power-dissipation and package thermal information.
Informações de conformidade
The product listing identifies ATTINY816-MF as green, but no explicit RoHS, REACH, lead-free, halogen-free, conflict-minerals, or automotive qualification declaration was identified. AEC-Q100 is not applicable because this is an industrial microcontroller rather than an automotive-qualified variant.
