ATMEGA162V-1MC - 8-bit AVR MCU, 16KB Flash 1MHz | Microchip
料号： ATMEGA162V-1MC ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $6.2 | $6.20 |
| 10 | $5.58 | $55.80 |
| 100 | $4.96 | $496.00 |
| 500 | $4.45 | $2,225.00 |
| 1,000 | $3.95 | $3,950.00 |
ATMEGA162V-1MC 概述
An 8-bit AVR microcontroller is a Harvard-architecture processor that executes most instructions in a single clock cycle, achieving throughput close to 1 MIPS per MHz. Within the power-management hierarchy of embedded systems, the microcontroller unit (MCU) sits at the center of the control chain, integrating CPU, program memory, data memory, timers, and communication peripherals in one chip, reducing bill-of-materials count versus discrete MCU-plus-logic designs.
Key features include an external memory interface supporting up to 64KB of optional external SRAM, 35 general purpose I/O lines, and a JTAG interface providing Boundary-scan capability, on-chip debugging, and in-system programming. The Flash memory offers 1,000 write/erase cycles with true Read-While-Write operation, and an optional boot code section with independent lock bits enables In-System Programming by an on-chip boot program.
The AVR enhanced RISC core pairs 32 general purpose working registers directly with the ALU, allowing single-cycle register-to-register operations. Peripherals include four flexible Timer/Counters with compare modes, two USARTs for serial communication, an SPI interface, a 10-bit ADC, and an analog comparator, giving the ATmega162 balanced capability for mixed serial/parallel control tasks. The wide 1.8V to 5.5V supply range of the V-grade variant suits battery-powered and 5V industrial designs alike.
Typical applications include industrial automation control nodes, battery-powered instrumentation, and legacy serial communication bridges where dual USARTs and an external memory interface are required. The 1 MHz speed grade targets low-noise, low-power designs rather than high-throughput processing.
Design consideration: the V suffix denotes the 1.8V-5.5V supply range and 1 MHz maximum frequency; if your design runs at 3.3V and needs more than 1 MHz, choose the L-grade (up to 8 MHz) or standard grade instead - the suffix determines both speed and voltage limits.
This page synthesizes distributor pricing context, same-package drop-in alternatives, and practical design notes not found together in the manufacturer datasheet.
直接替换替代料： ATMEGA162V-1MC ——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： ATMEGA162V-1MC （相同外形与封装尺寸） ——差异在于 Package, Core Architecture, Supply Voltage Range, EEPROM, SRAM.
快速对比工具——选择替代料号进行并排对比：
ATMEGA162L-8MC
✅ 直接替换✓ 有现货
联系询价
查看数据手册 →ATMEGA162-16MC
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$2.19 / 个
查看数据手册 →ATMEGA162-16MUR
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$3.58 / 个
查看数据手册 →ATMEGA162V-1MC 最大额定值与电气特性
| Core Architecture | 8-bit AVR RISC |
| Core Size | 8-bit |
| 最大时钟频率 | 1 MHz |
| Program Memory Size | 16KB (8K x 16) Flash |
| Flash Write/Erase Endurance | 1,000 cycles |
| SRAM Size | 1KB |
| EEPROM Size | 512B |
| Supply Voltage Range | 1.8 V to 5.5 V |
| External Memory Interface | Up to 64KB external memory |
| General Purpose I/O | 35 I/O lines |
| Working Registers | 32 general purpose registers |
| Timers/Counters | 4 flexible Timer/Counters with compare modes |
| JTAG Interface | Boundary-scan, on-chip debug, programming |
| 封装 | 44-VQFN (7x7 mm) |
| 安装类型 | Surface Mount |
| MIPS Rating | Up to 1 MIPS per MHz |
ATMEGA162V-1MC 44-vqfn (7x7 mm) 引脚配置指南
ATMEGA162V-1MC（44-vqfn (7x7 mm) 封装）的引脚配置。 该数字 IC 包含 GPIO、通信接口（UART、SPI、I2C）和电源引脚。请参阅制造商数据手册以了解复用引脚功能和配置选项。对嵌入式系统设计和 PCB 布局至关重要。
暂无详细引脚数据： ATMEGA162V-1MC.
请参阅 数据手册 以查看完整引脚配置。
典型应用
ATMEGA162V-1MC 适用于 6 应用s: Battery-Powered Industrial Sensors, Dual-Serial Communication Bridges, External Memory Expansion Systems, Legacy AVR System Maintenance, Motor Control and Timer-Based Automation, Embedded Security and Debug-Instrumentation.
Battery-Powered Industrial Sensors
The ATMEGA162V-1MC's 1.8V-5.5V supply range and 1 MHz V-grade speed make it a strong fit for battery-operated industrial sensor nodes, where the AVR core's near-1 MIPS-per-MHz efficiency lets the system run at a low clock and still complete sampling, filtering, and communication tasks. Its 1KB SRAM handles modest buffering, and the 512B EEPROM stores calibration coefficients that survive power loss. Sleep modes plus slow-clock operation minimize average current draw. The 44-VQFN (7x7 mm) package conserves PCB area in compact probe housings, while 35 GPIO lines drive status LEDs, switches, and level translation directly without external glue logic.
推荐
Dual-Serial Communication Bridges
With two independent USARTs, the ATMEGA162V-1MC is well suited to protocol-conversion bridges such as RS-232-to-RS-485 gateways or modem front-ends. Each USART can run at different baud rates, letting the MCU stream data between two serial domains while the 1 MHz clock keeps radiated emissions low - valuable in electrically noisy plants. The 16KB Flash accommodates buffered protocol stacks and CRC routines, and the JTAG interface supports on-chip debugging of concurrent channel code. At the V-grade's 1 MHz limit, sustained throughput is modest, so this application fits low-speed telemetry links rather than megabit-class transfers.
推荐
External Memory Expansion Systems
The ATmega162 is unusual among compact AVRs in offering a parallel external memory interface addressing up to 64KB beyond its internal 1KB SRAM. In the ATMEGA162V-1MC, Port A forms the multiplexed address/data bus and Port C supplies upper address bits, allowing a single external SRAM such as a 32Kx8 device to extend data storage for logging applications. This suits battery dataloggers that must retain weeks of samples. Designers must budget a latch (e.g., 74x573) for address demultiplexing and verify SRAM access times against the conservative 1 MHz bus timing of the V-grade device.
推荐
Legacy AVR System Maintenance
Many installed industrial products built around the Atmel ATmega162 in the 44-pin MLF/VQFN footprint require maintenance sourcing as original stock ages. The ATMEGA162V-1MC serves as a form-fit-function replacement in boards specified for the V-grade, and its JTAG port allows existing firmware images to be re-flashed in-circuit without desoldering. Because Microchip continues the ATmega162 family, engineers can move to the ATMEGA162L-8MC grade on the identical footprint when the supply is 2.7V or higher, gaining clock headroom while preserving the PCB layout and test fixtures.
推荐
Motor Control and Timer-Based Automation
The four flexible Timer/Counters with compare modes in the ATMEGA162V-1MC support PWM generation, frequency measurement, and event capture needed in small automation equipment such as valve controllers, conveyor counters, and fan-speed regulation. Two 8-bit and two 16-bit timers allow simultaneous independent timing domains, while compare outputs drive power stages through external MOSFET drivers. The 35 GPIO lines handle limit switches and operator interfaces. At 1 MHz, PWM carrier frequencies are low, suiting relay- and slow-PWM-based control rather than high-frequency switching; the 16 MHz grade suits faster loops on the same footprint.
推荐
Embedded Security and Debug-Instrumentation
The JTAG interface of the ATMEGA162V-1MC provides Boundary-scan testing, on-chip debugging, and protected in-system programming, making the device suitable for instrumentation and equipment whose service procedures require field firmware updates. The optional boot code section with independent lock bits enables an on-chip boot program to update application Flash safely, while lock bits protect intellectual property. Boundary-scan chain access through the 44-VQFN package supports production test of dense boards where physical probe access is impractical, and the wide 1.8V-5.5V supply allows reuse across several product voltage variants.
推荐
推荐产品汇总
工程参考数据： ATMEGA162V-1MC ——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 | ATMEGA162L-8MC | ATMEGA162-16MC | ATMEGA162-16MUR |
|---|---|---|---|---|
| Package | 44-VQFN (7x7) | 44-VQFN (7x7) - same | 44-VQFN (7x7) - same | 44-VQFN (7x7) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Max Clock Frequency | 1 MHz | 8 MHz | 16 MHz | 16 MHz |
| Supply Voltage | 1.8 V to 5.5 V | 2.7 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V |
| Flash Memory | 16KB | 16KB | 16KB | 16KB |
| SRAM / EEPROM | 1KB / 512B | 1KB / 512B | 1KB / 512B | 1KB / 512B |
| JTAG Interface | Yes | Yes | Yes | Yes |
| Typical Use Case | Ultra-low-voltage / low-EMI designs | 3.3V/5V general purpose | 5V high-throughput | 5V high-volume reel assembly |
关键差异点
- Widest supply range in the ATmega162 family （对比 ATMEGA162L-8MC)
- Lowest electromagnetic emission option （对比 ATMEGA162-16MC)
- External memory interface rare in compact AVRs （对比 ATMEGA162L-8MC)
设计说明
The V-grade device alone in the ATmega162 family operates down to 1.8V, but maximum clock falls to 1 MHz. Estimated: dynamic power scales roughly linearly with frequency and with V^2, so running at 1.8V/1 MHz versus 5V/16 MHz reduces core dynamic energy by roughly two orders of magnitude - a key reason to choose this grade for coin-cell or single-cell Li designs. Decouple VCC and AVCC separately with 100 nF ceramics placed within 5 mm of each pin, and tie AVCC to VCC through a low-pass filter when the ADC is used.
The 44-VQFN (7x7 mm) MLF-style package exposes a die-attach pad on the underside that must be soldered to a grounded thermal pad array on the PCB for mechanical reliability and heat spreading; this pad is also the primary ground connection. Use an array of thermal vias to the ground plane. Verify your footprint against the Microchip MLF-44 drawing - several legacy footprints in CAD libraries use 0.5 mm versus 0.65 mm lead pitches that will not align. Inspect solder joints via X-ray since perimeter pads are hidden under the package body.
Ordering-code confusion is the most frequent sourcing error with this part: the suffix controls package AND grade. MC is the 44-VQFN, AC is TQFP44, PI/PC are PDIP; V/L/no-letter control voltage and speed. A substituted AC part will not mount on an MC footprint. Also confirm JTAG fuse state: JTAGEN is factory-enabled and the JTAG pins (TCK/TMS/TDO/TDI) are not available as GPIO unless the fuse is cleared - designs expecting 4 extra I/O lines must account for this in firmware and schematics.
合规信息
Compliance attributes for this legacy ordering code were not stated in the provided web data; verify via Microchip's product page material declaration before new EU-market designs.