ATTINY816-MZT-VAO - 16MHz 8-bit AVR MCU, 8KB Flash, QFN-20 | Microchip
料号： ATTINY816-MZT-VAO ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $1.62 | $1.62 |
| 10 | $1.45 | $14.50 |
| 100 | $1.22 | $122.00 |
| 500 | $1.05 | $525.00 |
| 1,000 | $0.94 | $940.00 |
ATTINY816-MZT-VAO 概述
What is an 8-bit AVR microcontroller? An 8-bit AVR microcontroller is a Harvard-architecture RISC processor core originally developed by Atmel (now Microchip) that executes one instruction per clock cycle, delivering deterministic performance at modest clock rates and very low power consumption. Within the broader hierarchy, the ATTINY816 belongs to the tinyAVR 1-series (sub-family: ATtiny 0/1-series), which sits inside the ATtiny family, under the broader AVR MCU umbrella, which is itself part of the larger microcontroller (MCU) category of embedded processors. The tinyAVR 1-series adds modern Core Independent Peripherals (CIPs) such as Configurable Custom Logic (CCL), Event System, and Analog Signal Conditioning on top of the classic AVR core.
Key features of the ATTINY816 include 16 KB of ROM-less code execution from Flash, hardware multiplier, six flexible PWM channels via TCA/TCB timers, two USART, one SPI, one I2C, a 10-bit 188 ksps ADC with up to 12 input channels, and a 10-bit DAC. Functional Safety (FuSa) support and Core Independent Peripherals simplify safety-critical designs by offloading tasks from the CPU.
The device is built on a low-power CMOS process and offers multiple sleep modes (idle, standby, power-down with RTC) with typical active current in the microamp range, making it suitable for always-on battery-powered applications. The 20-VQFN package with wettable flanks enables automated optical inspection (AOI) post-reflow - critical for automotive-grade PCB assembly.
Typical applications include automotive body controllers, sensor nodes, LIN slaves, LED lighting controllers, smart sensors, consumer appliances, and industrial IoT edge nodes. The wide automotive temperature range and AEC-Q100 qualification make it equally suited to under-hood and cabin modules.
When designing with this device, ensure decoupling capacitors are placed within 2 mm of the VDD pin and follow Microchip's AVR instruction-set and toolchain (MPLAB X IDE, Atmel Studio, AVR-GCC) for code generation. The QFN package requires thermal pad soldering - refer to the package land pattern for proper footprint design.
This page synthesizes distributor pricing, AEC-Q100 qualification status, and cross-reference drop-in alternatives not consolidated in the manufacturer datasheet alone.
直接替换替代料： ATTINY816-MZT-VAO ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： ATTINY816-MZT-VAO （相同外形与封装尺寸） ——差异在于 ADC, Operating Temperature, Package, EEPROM, SRAM.
快速对比工具——选择替代料号进行并排对比：
ATTINY416-MZT-VAO
✅ 直接替换📋 参考替代料（不在目录中）
ATTINY1616-MZT-VAO
✅ 直接替换📋 参考替代料（不在目录中）
ATTINY816-MZT-EAO
✅ 直接替换📋 参考替代料（不在目录中）
ATTINY816-MBT-VAO
✅ 直接替换📋 参考替代料（不在目录中）
ATTINY1624-SSU
✅ 直接替换✓ 有现货
$0.66 / 个
查看数据手册 →ATTINY1626-XU
✅ 直接替换✓ 有现货
$1.2 / 个
查看数据手册 →ATTINY816-MZT-VAO 最大额定值与电气特性
| Series | tinyAVR 1-series |
| Core | AVR (8-bit RISC) |
| CPU Core Count | 1 |
| 最大时钟频率 | 16 MHz |
| Program Memory (Flash) | 8 KB |
| SRAM | 512 B |
| EEPROM | 128 B |
| Supply Voltage Range | 2.7 V to 5.5 V |
| Number of I/O Pins | 18 |
| ADC | 10-bit, 188 ksps |
| DAC | 10-bit |
| 封装 | 20-VQFN (3x3 mm) with wettable flanks |
| 安装类型 | Surface Mount |
| 工作温度 | -40C to +125C (Automotive Grade 1) |
| AEC-Q100 Qualification | Qualified |
| RoHS / REACH | Compliant (Green) |
| MSL 等级 | 3 (per JEDEC J-STD-020) |
| Hardware Multiplier | Yes |
ATTINY816-MZT-VAO 引脚配置
| 引脚 1 | VDD — Power supply input |
| 引脚 2 | PA0 — GPIO PA0 / ADC0 / AIN0 / TXD |
| 引脚 3 | PA1 — GPIO PA1 / ADC1 / AIN1 / RXD |
| 引脚 4 | PA2 — GPIO PA2 / ADC2 / AIN2 / TCB0 WO |
| 引脚 5 | PA3 — GPIO PA3 / ADC3 / AIN3 / TCB1 WO |
| 引脚 6 | GND — Ground |
| 引脚 7 | PA4 — GPIO PA4 / ADC4 / AIN4 / TCB2 WO |
| 引脚 8 | PA5 — GPIO PA5 / ADC5 / AIN5 / TCB3 WO |
| 引脚 9 | PA6 — GPIO PA6 / ADC6 / AIN6 / DAC0 |
| 引脚 10 | PA7 — GPIO PA7 / ADC7 / AIN7 / TCA0 WO0 |
| 引脚 11 | PB0 — GPIO PB0 / VREF / ADC8 / TCA0 WO1 |
| 引脚 12 | PB1 — GPIO PB1 / ADC9 / TCA0 WO2 |
| 引脚 13 | PB2 — GPIO PB2 / ADC10 / USART0 TXD |
| 引脚 14 | PB3 — GPIO PB3 / ADC11 / USART0 RXD |
| 引脚 15 | PB4 — GPIO PB4 / SDA / TCB4 WO |
| 引脚 16 | PB5 — GPIO PB5 / SCL / TCB5 WO |
| 引脚 17 | PC0 — GPIO PC0 / USART1 TXD |
| 引脚 18 | PC1 — GPIO PC1 / USART1 RXD |
| 引脚 19 | RESET — Reset input (active low) |
| 引脚 20 | EPAD — Exposed thermal pad - connect to GND |
典型应用
ATTINY816-MZT-VAO 适用于 6 应用s: Automotive LIN Bus Slave Node, Automotive LED Lighting Controller, Industrial IoT Sensor Node, Smart Home Sensor Hub, Consumer Appliance Control Board, Automotive Body Control Module (BCM) Sub-Controller.
Automotive LIN Bus Slave Node
The ATTINY816-MZT-VAO is well suited to automotive LIN 2.x slave nodes: its 8 KB Flash accommodates a LIN stack plus application code, the two USART enable hardware LIN break/sync handling, and AEC-Q100 grade 1 qualification supports deployment in body controllers, seat modules, mirror actuators, and roof consoles. With 18 GPIO and 10-bit ADC, the device can drive up to six PWM-controlled loads and read multiple analog sensors simultaneously while consuming only tens of microamps in standby, which is critical for always-on battery-supplied body electronics.
推荐
Automotive LED Lighting Controller
The ATTINY816-MZT-VAO fits RGB ambient lighting, daylight running light (DRL) controllers, and turn-indicator drivers: the three-channel TCA and four TCB timers deliver up to seven PWM outputs for brightness/color mixing, while the 10-bit DAC and CCL blocks enable dimming curves without CPU overhead. AEC-Q100 grade 1 qualification and 125C operating temperature support under-hood and headlamp module placement. The 20-VQFN-3x3 with wettable flanks is ideal for high-density automotive LED PCBs that must pass AOI solder inspection.
推荐
Industrial IoT Sensor Node
For battery-powered IIoT edge sensors measuring temperature, pressure, humidity, or vibration, the ATTINY816-MZT-VAO provides 12-channel 10-bit ADC, multiple low-power sleep modes (typical sub-1uA power-down), and Event System wake-up that lets the MCU stay asleep while peripherals trigger autonomously. The Core Independent Peripherals (CIPs) handle sensor polling and threshold detection without waking the CPU, extending battery life by 10-100x versus polled-only designs. Operating from 2.7V-5.5V, it accepts unregulated Li-ion or 3.6V Li-SOCl2 chemistries directly.
推荐
Smart Home Sensor Hub
The ATTINY816-MZT-VAO is a strong fit for low-cost Zigbee/Thread/BLE sensor endpoints: its small 20-VQFN-3x3 footprint fits behind coin-cell PIR, door/window, or smoke detector housings, and 8 KB Flash is ample for simple Zigbee 3.0 or Matter-over-Thread endpoint stacks. Sleep currents under 1uA allow multi-year battery life on CR2032 cells. The I2C/SPI peripherals connect directly to environmental sensors (BME280, SHT31) and the DAC can drive piezo buzzers for local audible feedback without extra circuitry.
推荐
Consumer Appliance Control Board
In white goods and small kitchen appliances, the ATTINY816-MZT-VAO drives HMI panels, sensor inputs, and BLDC/PMSM commutation assistance for compressor or fan control. The CCL and Event System offload user-interface debouncing and motor-sensor timing from the CPU, freeing cycles for communication stacks (UART to main MCU, I2C to display). 18 GPIO and 7 PWM outputs suffice for multi-button interfaces plus triac/SCR-based load drivers in washing machines, dishwashers, or air purifiers where the -40C to +125C range covers harsh cabinet temperatures.
推荐
Automotive Body Control Module (BCM) Sub-Controller
Distributed BCM architectures use small microcontrollers like the ATTINY816-MZT-VAO to offload door/window/liftgate/mirror functions from a central gateway, reducing CAN bus load and wiring. The device's AEC-Q100 grade 1 qualification, automotive temperature range, and integrated peripherals handle debounced switch inputs, current sensing for window anti-pinch, and LIN connectivity to mirror/glass actuators. Dual USART enables simultaneous CAN-LIN gateway routing, while the 8 KB Flash hosts an AUTOSAR-compliant MCAL driver layer plus application logic.
推荐
推荐产品汇总
工程参考数据： ATTINY816-MZT-VAO ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | ATTINY416-MZT-VAO | ATTINY1616-MZT-VAO | ATTINY816-MZT-EAO | ATTINY816-MBT-VAO | ATTINY1624-SSU | ATTINY1626-XU |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-VQFN (3x3) | 20-VQFN (3x3) - same | 20-VQFN (3x3) - same | 20-VQFN (3x3) - same | 20-VQFN (3x3) - same | 20-SOIC - same peripheral set | 20-SOIC - same peripheral set |
| Flash Memory | 8 KB | 4 KB (-50%) | 16 KB (+100%) | 8 KB (same) | 8 KB (same) | 16 KB (+100%) | 16 KB (+100%) |
| SRAM | 512 B | 512 B | 1024 B | 512 B | 512 B | 1024 B | 1024 B |
| Maximum Clock Frequency | 16 MHz | 16 MHz | 16 MHz | 16 MHz | 16 MHz | 20 MHz | 20 MHz |
| AEC-Q100 Qualified | Yes (Grade 1) | Yes (Grade 1) | Yes (Grade 1) | Yes | Yes | Industrial grade | Industrial grade |
| Operating Temperature | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +85C | -40C to +85C |
| Core Architecture | AVR 8-bit (tinyAVR 1-series) | AVR 8-bit (tinyAVR 1-series) | AVR 8-bit (tinyAVR 1-series) | AVR 8-bit (tinyAVR 1-series) | AVR 8-bit (tinyAVR 1-series) | AVR 8-bit (tinyAVR 2-series) | AVR 8-bit (tinyAVR 2-series) |
关键差异点
- AEC-Q100 Grade 1 qualification with wettable-flank QFN （对比 ATTINY1624-SSU)
- Optimal Flash density for cost-sensitive LIN/BLE stacks （对比 ATTINY1616-MZT-VAO)
- Core Independent Peripherals reduce CPU load （对比 ATTINY44A-SSU)
设计说明
Place a 100 nF decoupling capacitor within 2 mm of the VDD pin (pin 1) and connect it to a ground via adjacent to the device. The exposed thermal pad (pin 20) MUST be soldered to a ground plane for thermal dissipation and electrical reference - follow the Microchip AN2466 land pattern guidelines for the 3x3 VQFN footprint. Keep analog signal traces away from switching PWM outputs and use a star-ground topology for the analog reference return to preserve ADC accuracy.
For sleep-current-sensitive applications, disable unused peripherals via the Power Reduction Register (PRR) and use the Event System + Core Independent Peripherals to wake the MCU only when needed. Power-down mode with RTC can achieve sub-1uA Iq. The internal 16/20 MHz oscillator is factory-calibrated but for LIN timing (2% accuracy required), use the external crystal or PLL against a timer reference. Add a 10uF bulk + 100 nF HF decoupling pair near the VDD pin.
Do not float the RESET pin - it requires a 10 kohm pull-up to VDD if not driven externally. The AVR fuses (LFUSE/HFUSE/EFUSE) must be programmed correctly for the chosen clock source and brown-out detector voltage - getting these wrong will brick the device until a high-voltage parallel programmer restores them. The UPDI programming interface uses the RESET pin in single-wire mode, so allocate this pin dedicated for in-system programming.
When using the device in automotive LIN/CAN environments, add TVS diodes (e.g., SMAJ24CA) on supply and bus lines for transient protection per ISO 7637-2. Series ferrite beads or common-mode chokes on CAN_H/CAN_L improve EMI immunity. Route I2C/SPI lines as short as possible with 4.7 kohm pull-ups on SDA/SCL, and keep clock trace length matched to data line length within 5 mm to avoid setup/hold violations at high speeds.
合规信息
RoHS compliant per Microchip product page (Green designation). AEC-Q100 Grade 1 qualified for automotive. Lead-free and Halogen-free per Microchip environmental compliance statements.
