ATMEGA162V-8AU - 8-bit AVR MCU 16KB Flash 8MHz TQFP-44 | Microchip
Артикул: ATMEGA162V-8AU ✓ Активен| Кол-во | Цена за ед. | Итого |
|---|---|---|
| 1 | $6.85 | $6,85 |
| 10 | $6.18 | $61,80 |
| 100 | $5.49 | $549,00 |
| 500 | $4.92 | $2.460,00 |
| 1.000 | $4.38 | $4.380,00 |
ATMEGA162V-8AU Обзор
Key features include 8 MHz maximum CPU clock speed, 35 programmable I/O lines, dual UART interfaces, SPI, TWI (I2C-compatible), and 16 MIPS throughput at 16 MHz. The "V" suffix designates the 1.8V-5.5V wide operating voltage range optimized for battery-powered applications, while the "-8" speed grade limits maximum clock to 8 MHz at the lower end of the voltage range. The ATmega162V is the low-voltage variant of the ATmega162 family, sharing identical peripherals and pinout with the standard ATmega162 (which operates 2.7V-5.5V up to 16 MHz).
The AVR enhanced RISC architecture executes most instructions in a single clock cycle, achieving throughputs approaching 1 MIPS per MHz. This allows the system designer to optimize power consumption versus processing speed. Five sleep modes (Idle, Power-save, Power-down, Standby, Extended Standby) plus on-chip peripherals make the device suitable for energy-aware designs. The JTAG interface complies with IEEE 1149.1 standard, supporting boundary-scan and on-chip debug via debugWIRE or JTAG.
Typical applications include industrial control systems, battery-powered sensor nodes, building automation, motor control peripherals, USB-to-UART bridges, and embedded communication gateways that need two serial ports. The dual UART is a distinctive feature that simplifies designs requiring simultaneous host and peripheral serial connectivity. Industrial temperature rating (-40C to +85C) and 1.8V minimum Vcc enable 2x AA battery operation with extended runtime.
When designing with this device, note that the "V" variant's lower Vcc_min requires the -8 speed grade; using the standard ATmega162-16AU instead allows higher clock frequencies but raises Vcc_min to 2.7V. Decoupling requires 100nF on each Vcc pin placed within 5mm, plus a 10uF bulk capacitor on the main rail. The 44-TQFP (10x10) footprint is identical to ATmega162-16AU and ATmega162V-8PU, enabling PCB reuse across the family.
This page synthesizes distributor pricing, drop-in alternatives across the ATmega162 family, and practical design notes not found in the manufacturer datasheet alone.
Аналоги без доработки для ATMEGA162V-8AU — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.
Варианты в этой серии
Модели той же серии, совместимые без доработки с ATMEGA162V-8AU (тот же форм-фактор и посадочное место) — отличается по Throughput, Instruction Set, Core Architecture, Package, Operating Temperature.
Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:
ATMEGA162-16AU
✅ Прямая замена✓ В наличии
$2.45 / шт.
Открыть даташит →ATMEGA162V-8AUR
✅ Прямая замена✓ В наличии
$6.62 / шт.
Открыть даташит →ATMEGA162V-8AU Максимальные параметры и электрические характеристики
| Core Architecture | AVR 8-bit RISC |
| CPU Clock Speed (max) | 8 MHz |
| Throughput | 8 MIPS at 8 MHz |
| Program Memory (Flash) | 16 KB (8K x 16) |
| SRAM | 1 KB |
| EEPROM | 512 B |
| Operating Voltage Range | 1.8 V to 5.5 V (V variant) |
| Programmable I/O Lines | 35 |
| UART Interfaces | 2 |
| SPI | Yes |
| TWI (I2C-compatible) | Yes |
| JTAG / debugWIRE | Yes (IEEE 1149.1) |
| Корпус | 44-TQFP (10x10 mm) |
| Рабочая температура | -40C to +85C (industrial) |
| Sleep Modes | 5 (Idle, Power-save, Power-down, Standby, Extended Standby) |
| Тип монтажа | Surface Mount |
| Статус RoHS | Compliant |
Конфигурация выводов ATMEGA162V-8AU
| Контакт 1 | VCC — Digital supply voltage (1.8-5.5V) |
| Контакт 2 | XTAL2 — Crystal oscillator output |
| Контакт 3 | XTAL1 — Crystal oscillator input |
| Контакт 4 | RESET — Reset input (active low) |
| Контакт 5 | PD0 — Port D bit 0 / RXD1 (UART1 receive) |
| Контакт 6 | PD1 — Port D bit 1 / TXD1 (UART1 transmit) |
| Контакт 7 | PD2 — Port D bit 2 / INT0 |
| Контакт 8 | PD3 — Port D bit 3 / INT1 |
| Контакт 9 | PD4 — Port D bit 4 |
| Контакт 10 | PD5 — Port D bit 5 |
| Контакт 11 | PD6 — Port D bit 6 |
| Контакт 12 | PD7 — Port D bit 7 |
| Контакт 13 | GND — Ground |
| Контакт 14 | AVCC — Analog supply voltage |
| Контакт 15 | AREF — ADC reference voltage |
| Контакт 16 | PA0 — Port A bit 0 / ADC0 |
| Контакт 17 | PA1 — Port A bit 1 / ADC1 |
| Контакт 18 | PA2 — Port A bit 2 / ADC2 |
| Контакт 19 | PA3 — Port A bit 3 / ADC3 |
| Контакт 20 | PA4 — Port A bit 4 / ADC4 |
| Контакт 21 | PA5 — Port A bit 5 / ADC5 |
| Контакт 22 | PA6 — Port A bit 6 / ADC6 |
| Контакт 23 | PA7 — Port A bit 7 / ADC7 |
| Контакт 24 | AGND — Analog ground |
| Контакт 25 | PC0 — Port C bit 0 / SCL |
| Контакт 26 | PC1 — Port C bit 1 / SDA |
| Контакт 27 | PC2 — Port C bit 2 |
| Контакт 28 | PC3 — Port C bit 3 |
| Контакт 29 | PC4 — Port C bit 4 |
| Контакт 30 | PC5 — Port C bit 5 |
| Контакт 31 | PC6 — Port C bit 6 |
| Контакт 32 | PC7 — Port C bit 7 |
| Контакт 33 | PB0 — Port B bit 0 / T0 |
| Контакт 34 | PB1 — Port B bit 1 / T1 |
| Контакт 35 | PB2 — Port B bit 2 / AIN0 |
| Контакт 36 | PB3 — Port B bit 3 / AIN1 |
| Контакт 37 | PB4 — Port B bit 4 / SS |
| Контакт 38 | PB5 — Port B bit 5 / MOSI |
| Контакт 39 | PB6 — Port B bit 6 / MISO |
| Контакт 40 | PB7 — Port B bit 7 / SCK |
| Контакт 41 | PE0 — Port E bit 0 / RXD0 |
| Контакт 42 | PE1 — Port E bit 1 / TXD0 |
| Контакт 43 | PE2 — Port E bit 2 / OC1B |
| Контакт 44 | VCC — Digital supply voltage (1.8-5.5V) |
Типичное применение
ATMEGA162V-8AU подходит для 6 применениеs: Industrial Control Systems, Battery-Powered Sensor Nodes, USB-to-UART Bridge Devices, Building Automation Gateways, Motor Control Peripherals, Embedded Communication Modules.
Industrial Control Systems
The ATMEGA162V-8AU fits industrial control with its 8 MIPS throughput, dual UART, and 1.8-5.5V operation. The 35 programmable I/O lines handle sensors, actuators, and HMI peripherals without external expanders. Industrial temperature rating (-40C to +85C) and JTAG debug support simplify field diagnostics. Power-down mode with BOD enables unattended monitoring stations.
Рекомендуется
Battery-Powered Sensor Nodes
The ATMEGA162V-8AU's 1.8V Vcc_min enables direct 2x AA battery operation without boost converters. Five sleep modes reduce quiescent current to a few microamps, supporting multi-year battery life for wireless sensor nodes. The 1 KB SRAM and 16 KB Flash accommodate ZigBee/BLE protocol stacks or LoRaWAN drivers. The 8 MHz throughput handles periodic sensing and reporting.
Рекомендуется
USB-to-UART Bridge Devices
The ATMEGA162V-8AU's dual UART is ideal for USB-to-UART bridges that also need a secondary debug port. At 8 MHz the device can bit-bang USB low-speed or drive CDC ACM class devices via software stacks. Industrial temperature rating and 5V tolerance suit industrial USB hosts. JTAG allows firmware updates over USB without external programmers.
Рекомендуется
Building Automation Gateways
The ATMEGA162V-8AU's dual UART handles Modbus RTU and BACnet MS/TP simultaneously, common building automation protocols. SPI connects to Ethernet controllers or Wi-Fi modules for cloud connectivity. The 16 KB Flash stores protocol stacks, and JTAG supports field firmware upgrades via boundary-scan. Wide Vcc tolerance handles long 24V industrial wiring drops.
Рекомендуется
Motor Control Peripherals
The ATMEGA162V-8AU generates PWM and timing signals for stepper and BLDC motor control peripherals with its 16-bit timers. At 8 MIPS the device computes commutation tables for small brushless motors in real time. The 35 I/O lines drive gate drivers and read Hall sensors. Dual UART connects to host controllers for command/status reporting in distributed motor networks.
Рекомендуется
Embedded Communication Modules
The ATMEGA162V-8AU's SPI + UART + TWI peripherals form a flexible gateway between wireless modules and host processors. Its 8 MIPS throughput runs GSM/LoRa/BLE module command interpreters while JTAG enables in-circuit programming during OEM integration. Industrial temperature rating suits outdoor enclosures. 1.8V operation supports solar-powered remote terminals.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для ATMEGA162V-8AU — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | ATMEGA162-16AU | ATMEGA162V-8AUR | ATMEGA162V-8MU |
|---|---|---|---|---|
| Package | 44-TQFP (10x10 mm) | 44-TQFP (10x10 mm) - same | 44-TQFP (10x10 mm) - same | 44-MLF (10x10 mm) - different |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Max CPU Clock | 8 MHz | 16 MHz | 8 MHz | 8 MHz |
| Operating Voltage (Vcc) | 1.8 V to 5.5 V | 2.7 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V |
| Flash Program Memory | 16 KB | 16 KB | 16 KB | 16 KB |
| SRAM | 1 KB | 1 KB | 1 KB | 1 KB |
| EEPROM | 512 B | 512 B | 512 B | 512 B |
| UART Interfaces | 2 | 2 | 2 | 2 |
| I/O Lines | 35 | 35 | 35 | 35 |
| Temperature Range | -40C to +85C (industrial) | -40C to +85C (industrial) | -40C to +85C (industrial) | -40C to +85C (industrial) |
Ключевые отличия
- Lowest Vcc_min in ATmega162 family at 1.8V (против ATMEGA162-16AU)
- True drop-in with extended temperature data (против ATMEGA162V-8AUR)
- TQFP-44 form factor for hand-soldering (против ATMEGA162V-8MU)
Заметки по проектированию
Decoupling: Place a 100nF ceramic capacitor on each VCC/AVCC pin within 5mm of the IC. Add a single 10uF tantalum or ceramic bulk capacitor on the main VCC rail. The 1.8V Vcc_min of the V variant requires a regulated LDO output for 2x AA battery systems - the TPS7A02 or similar 200mA LDO provides clean supply. Brown-out detection (BOD) should be enabled in fuses to prevent code corruption at low Vcc.
TQFP-44 thermal management: The TQFP-44 package has theta_JA around 50-60 C/W depending on PCB copper area. At 8 MHz with all peripherals enabled, typical active current is 5-10 mA at 3.3V, dissipating only 30 mW - thermal concerns are negligible for this device. The MLF-44 variant has a thermal pad that must be soldered to a ground copper pour (minimum 1 sq inch) for optimal thermal performance and electrical grounding.
PCB layout for JTAG: Place the 6-pin JTAG header (TCK, TMS, TDO, TDI, VCC, GND) within 50mm of the MCU for reliable debugWIRE/JTAG connection. Use series 100 ohm termination resistors on JTAG signals if traces exceed 25mm. Route XTAL1/XTAL2 traces short (under 10mm) and guard with ground plane to minimize EMI. Keep crystal traces away from switching power or high-current signals.
Common pitfalls: (1) Do not confuse ATmega162 with ATmega162V - the non-V variant cannot operate below 2.7V. (2) The -8 speed grade of the V variant is required for 1.8V operation; do not attempt higher speeds. (3) The dual UART requires proper register configuration for baud-rate generator independent setup. (4) JTAG and debugWIRE cannot be used simultaneously - select one in fuses. (5) ISP programming requires the RESET pin to be pulled high externally.
Информация о соответствии
RoHS compliant per Microchip product page. Industrial temperature grade (-40C to +85C), not AEC-Q100 automotive qualified. Halogen-free status not explicitly stated in available data.