ATMEGA16HVB-8X3R - 8-bit AVR MCU, 4-25V, 8MHz | Microchip
部品番号: ATMEGA16HVB-8X3R ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $4.2 | $4.20 |
| 10 | $3.78 | $37.80 |
| 100 | $3.36 | $336.00 |
| 500 | $3.02 | $1,510.00 |
| 1,000 | $2.7 | $2,700.00 |
ATMEGA16HVB-8X3R 概要
An 8-bit microcontroller (MCU) is an integrated circuit that combines a processor core, program and data memory, and peripherals such as timers, ADCs, and communication interfaces on a single chip. Within the power-management hierarchy, the ATmega HVB family is a battery-management MCU class: an AVR core optimized for single-cell and multi-cell battery supervision in portable and industrial power systems.
Key features include the wide 4V to 25V operating supply range, which allows direct connection to battery packs without an external regulator; the AVR RISC architecture executing most instructions in a single clock cycle for up to 8 MIPS at 8MHz; in-system programmable 16KB FLASH for field firmware updates; and integrated battery-management peripherals including ADC channels suited for cell voltage and current measurement.
The device is fabricated in Microchip's AVR process optimized for low-power operation, with power-saving sleep modes and a battery-management interrupt structure that lets the core sleep between measurement events, extending battery runtime. The ATmega16HVB integrates dual power domains so the MCU logic can run from a regulated VCC while monitoring the raw battery rail.
Typical applications include single- and multi-cell battery chargers, battery pack supervision and gauging, power tools, portable medical devices, and uninterruptible power supply front-end controllers, where wide-voltage operation and on-chip measurement peripherals reduce external component count.
When designing with this device, verify the 4V to 25V supply envelope against the worst-case battery stack voltage, and confirm programming-tool support, since HVB-family devices use the AVR ISP/DebugWire interfaces.
This page synthesizes distributor pricing, drop-in alternatives, application guidance, and practical design notes not found in the manufacturer datasheet.
ドロップイン代替品: ATMEGA16HVB-8X3R — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: ATMEGA16HVB-8X3R （同一形状・フットプリント） — 相違点: Operating Temperature, Package, RoHS Status, Communication Interfaces, I/O Pins.
クイック比較ツール — 並列比較する代替部品を選択:
ATMEGA16HVB-8X3
✅ ドロップイン📋 参考代替品（カタログ未掲載）
ATMEGA32HVB-8X3R
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$3.42 / 個
データシートを見る →ATMEGA32HVB-8X3
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$3.1 / 個
データシートを見る →ATMEGA16HVB-8X3R 最大定格＆電気的特性
| Core Processor | AVR |
| Core Size | 8-Bit |
| Speed | 8 MHz |
| Program Memory Size | 16 KB (8K x 16) FLASH |
| RAM Size | 1 KB |
| EEPROM Size | 512 B |
| Supply Voltage Range | 4 V to 25 V |
| パッケージ | 44-TSSOP |
| 実装タイプ | Surface Mount |
| 動作温度 | -40C to +85C |
| Series | AVR ATmega HVB (battery management) |
| Packaging | Tape & Reel (R suffix) |
| Peripherals | Battery management, PWM, WDT |
| RoHS ステータス | Compliant |
ATMEGA16HVB-8X3R 44-tssop ピン配置ガイド
ATMEGA16HVB-8X3R (44-tssop パッケージ) のピン配置。 このデジタルICには、GPIO、通信インターフェース (UART、SPI、I2C)、および電源ピンが含まれています。代替ピン機能と設定オプションについては、メーカーのデータシートを参照してください。組み込みシステム設計とPCBレイアウトに不可欠です。
詳細なピン配置データはありません: ATMEGA16HVB-8X3R.
詳細は データシート をご参照ください。
主な用途
ATMEGA16HVB-8X3R の用途: 6 件s: Battery Pack Supervision, Battery Chargers, Power Tools, Portable Medical Devices, UPS and Backup Power Front-Ends, IoT Sensor Nodes with Battery Power.
Battery Pack Supervision
The ATMEGA16HVB-8X3R fits battery pack supervision because its 4V to 25V direct supply spans one-cell through multi-cell lithium stacks without an input regulator, cutting BOM cost and board area. The on-chip ADC measures cell voltages and pack current, while 512B EEPROM stores calibration constants, cycle counts, and fault logs through power cycles. The AVR core sleeps between measurement events in power-down mode, keeping quiescent drain low enough for packs that sit in storage for months. Firmware implements over-voltage, under-voltage, and over-current thresholds, driving protection FETs through GPIO. The 16KB FLASH provides ample room for state-of-charge estimation routines and communicates results to a host over UART or I2C-style bit-banged links.
おすすめ
Battery Chargers
In smart charger designs, the ATMEGA16HVB-8X3R serves as the charge-control MCU: its wide supply range lets it sit directly on the charger input rail from 4V to 25V, covering common adapter voltages without regulation. The integrated ADC reads battery voltage and charge current through external sense resistors, and PWM outputs drive buck or linear charging stages with closed-loop control. Timer peripherals implement constant-current, constant-voltage, and trickle phases with precise timing, while the watchdog timer guarantees recovery from firmware faults. The 8MHz AVR core executes charging state machines with headroom, and in-system programmable FLASH allows charge profiles to be retuned in the field for different cell chemistries without recalling units.
おすすめ
Power Tools
Cordless power-tool electronics demand controllers that survive harsh pack voltages and high vibration environments; the ATMEGA16HVB-8X3R meets both needs with its industrial -40C to +85C temperature rating and 4V to 25V direct-battery operation. The MCU monitors trigger position, cell voltage, and motor current through its ADC, enforcing thermal and over-current cutouts that protect lithium cells during stall events. Its robust AVR architecture and watchdog supervision keep the tool safe after battery hot-swap transients. The 44-pin TSSOP offers enough GPIO for LED fuel gauges, brake control, and fuel-gauge communication with the pack. Tape-and-reel supply supports automated high-volume assembly lines typical of power-tool manufacturing.
おすすめ
Portable Medical Devices
Battery-powered medical instruments such as glucose meters, infusion pump accessories, and portable diagnostic sensors benefit from the ATMEGA16HVB-8X3R's combination of wide-voltage battery operation, low sleep-mode current, and deterministic AVR core. The ADC provides the analog front-end for sensor conditioning, while EEPROM securely retains calibration data required for measurement accuracy audits. Because the MCU runs directly from the battery stack, the power tree is simplified, reducing the number of failure points in safety-relevant designs. The industrial temperature range supports sterilization-adjacent environments, and in-field FLASH reprogramming enables firmware updates for feature or regulatory revisions without physical rework of deployed devices.
おすすめ
UPS and Backup Power Front-Ends
Small uninterruptible and backup power systems use the ATMEGA16HVB-8X3R as the battery-front-end controller, where its 25V maximum supply covers 12V lead-acid and multi-cell lithium buses directly. The ADC continuously measures bus voltage and charge current, the firmware executes temperature-compensated charging curves, and GPIO drives relays or FETs for source-changeover control. EEPROM logs outage counts and battery health metrics for predictive maintenance reporting over a serial link to the main system controller. Power-down sleep modes keep standby consumption minimal while the battery float-charges, extending overall system efficiency and battery service life across frequent grid events.
おすすめ
IoT Sensor Nodes with Battery Power
Industrial IoT nodes powered directly from battery or energy-harvesting rails use the ATMEGA16HVB-8X3R to combine sensing, computation, and communication in one low-cost chip. The wide 4V to 25V input tolerates solar-charged lead-acid or lithium stacks without regulation, while deep sleep modes between measurement windows minimize average current draw. The ADC samples analog sensors, the AVR core filters and packages data, and UART/SPI-style interfaces pass results to a radio module. The industrial temperature rating and watchdog supervision make the node field-deployable, and in-system programmable FLASH allows sensor calibration and protocol updates to be pushed remotely over the air after initial deployment.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: ATMEGA16HVB-8X3R — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | ATMEGA16HVB-8X3 | ATMEGA32HVB-8X3R | ATMEGA32HVB-8X3 |
|---|---|---|---|---|
| Package | 44-TSSOP | 44-TSSOP - same | 44-TSSOP - same | 44-TSSOP - same |
| Brand | Microchip Technology (Atmel) | Microchip Technology (Atmel) | Microchip Technology (Atmel) | Microchip Technology (Atmel) |
| Program Memory (FLASH) | 16 KB (8K x 16) | 16 KB | 32 KB | 32 KB |
| RAM Size | 1 KB | 1 KB | 2 KB | 2 KB |
| Supply Voltage | 4 V to 25 V | 4 V to 25 V | 4 V to 25 V | 4 V to 25 V |
| Maximum Speed | 8 MHz | 8 MHz | 8 MHz | 8 MHz |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| Packaging Format | Tape & Reel (R suffix) | Tray (no R suffix) | Tape & Reel | Tray |
主な差別化要因
- Wide 4V to 25V direct battery operation （vs ATMEGA16A-AU)
- Memory headroom upgrade path （vs ATMEGA32HVB-8X3R)
- Integrated battery-management peripherals （vs Generic ATmega168 family)
設計ノート
Design the input protection network for the full 4V to 25V envelope even if your battery stack nominally sits lower. Multi-cell packs can exceed nominal voltage during charge, and inductive loads such as motors can inject transient spikes well above the battery voltage. Add a series resistor or PTC on the supply pin, a TVS diode clamped below 25V, and bulk capacitance sized for hot-battery-insertion inrush. Because the HVB integrates a dual power domain (battery rail plus MCU VCC), follow the Microchip datasheet sequencing requirements between VBAT and VCC during power-up and hot-swap events to avoid latch-up.
Place 100nF ceramic decoupling capacitors directly across the VCC and GND pins and a second 100nF on the battery monitoring domain, with at least 4.7uF bulk near the supply entry. Route battery sense lines to the ADC as short differential pairs away from PWM and motor-drive traces; the sense resistors used for current measurement should use Kelvin connections to the ADC inputs. Keep the in-system programming header (ISP) accessible on the production PCB, since the 16KB FLASH is field-updatable and the header costs almost nothing but saves rework when firmware changes are required.
Do not substitute a standard 5.5V-max ATmega (such as ATMEGA16A) onto an HVB footprint - even though 44-pin TSSOP AVR footprints look similar, pin functions and voltage ratings differ and the standard part will be destroyed above 5.5V. Verify fuse settings for clock source and debug interface before mass programming, since incorrect fuse configuration can disable ISP access. Finally, confirm the exact supply range of your battery chemistry: a 6S lithium stack can exceed the 25V maximum and requires a pre-regulator or a different supervision architecture.
コンプライアンス情報
RoHS compliant and lead-free per Microchip Technology product data. REACH, halogen-free, and conflict-minerals declarations must be confirmed against the official Microchip compliance documents for this exact MPN.
