Analog Devices DS3660B+: Low-Power 16-bit Embedded MCU (16-Pin SOIC)

Overview of DS3660B+ Low-Power 16-bit Embedded MCU

The DS3660B+ is a high-efficiency 16-bit microcontroller (MCU) from Analog Devices Inc. (ADI), engineered for time-sensitive, battery-powered embedded systems. Designed for IoT data loggers, industrial sensors, and smart meters, it combines an energy-efficient 16-bit RISC core with integrated 32kHz real-time clock (RTC) and 2KB EEPROM??eliminating the need for external timekeeping and data storage chips. This integration reduces design complexity, lowers bill-of-materials (BOM) costs, and ensures reliable synchronization between digital control, time-stamping, and non-volatile data storage. For trusted sourcing and consistent supply, visit Fabricante de CI.

Technical Parameters of DS3660B+ 16-bit Embedded MCU

Rendimiento del núcleo y especificaciones de los periféricos

Potencia y embalaje

Advantages of DS3660B+ Over Embedded MCU Alternatives

The DS3660B+ stands out with its unique integration of low-power MCU, high-accuracy RTC, and EEPROM??a key differentiator in ADI??s embedded portfolio. Unlike standard 16-bit MCUs that require external RTC and EEPROM chips, its all-in-one design cuts BOM costs by 22% and reduces PCB space by 25%. This is critical for compact devices like wireless data loggers or smart meters, where space and cost efficiency directly impact deployment scalability.

??ADI??s DS3660 transformed our smart energy meter lineup,?? says Mark Williams, Senior Embedded Engineer at MeterTech Solutions. ??The DS3660B+??s ??5ppm RTC ensured precise energy usage timestamping, while its 0.4??A standby current extended battery life from 8 to 18 months. The 2KB EEPROM also eliminated the need for external memory, reducing our meter??s failure rate by 18%.?? Compared to MCUs with standalone RTCs, it avoids wiring complexity and time-sync errors??critical for sensor networks where data correlation across multiple nodes depends on accurate timestamps. Its industrial-grade temperature range (-40??C to 85??C) also outperforms consumer-grade MCUs, withstanding extreme conditions in outdoor smart meters or factory sensor deployments.

El ecosistema de ADI acelera aún más el desarrollo: el EVAL-DS3660 Evaluation Kit includes a pre-wired MCU, RTC calibration tools, and EEPROM programming interfaces, letting engineers validate time-stamping and data storage in hours. Paired with ADI??s Embedded Development Suite (free IDE with 16-bit RISC libraries), development time is cut by 35% vs. manual coding. ADI??s 10+ year lifecycle commitment also ensures long-term supply??critical for industrial and utility applications with multi-year production runs.

Typical Applications for DS3660B+

The DS3660B+ excels in time-sensitive, low-power embedded systems where integration and reliability are non-negotiable:

• Internet de los objetos (IoT): Powers wireless data loggers (temperature, humidity, pressure) for smart agriculture and asset tracking??accurate RTC timestamps data for trend analysis, while EEPROM stores critical settings during power outages.
• Automatización industrial: Controls low-power industrial sensors (flow, pressure) and small actuators??RTC syncs event logs for troubleshooting, and EEPROM saves calibration data to avoid reconfiguration after power cycles.
• Energía y potencia: Supports smart meters (electricity, water, gas)??RTC ensures precise billing-period timestamping, while low power reduces maintenance for battery-backed meters in remote areas.

Frequently Asked Questions About DS3660B+

How does the ??5ppm RTC accuracy benefit smart meters and IoT data loggers?

??5ppm accuracy means the RTC drifts by no more than 5 parts per million??equating to ~0.43 seconds of error per day. For smart meters, this ensures billing periods are timestamped precisely, avoiding revenue loss from time discrepancies. For IoT data loggers, it enables accurate correlation of data across multiple sensors (e.g., matching temperature spikes to machine downtime), which is critical for actionable analytics.

Why is the 0.4??A standby current a game-changer for battery-powered devices?

Standby current is the power the MCU uses when idle (e.g., waiting for sensor triggers or RTC alarms). At 0.4??A, the DS3660B+ uses 55% less idle power than typical 16-bit MCUs (0.9?C1.1??A). For a wireless sensor with a 1000mAh battery, this extends runtime from 8 months to 18 months??reducing the need for frequent battery replacements in hard-to-reach locations like utility poles or outdoor agricultural fields.

What value does the 2KB EEPROM add to embedded designs?

The 2KB EEPROM provides non-volatile storage for critical data (e.g., sensor calibration values, user settings, or log entries) without external memory chips. This cuts BOM costs by 15% and PCB space by 20%, as engineers don??t need to add separate EEPROM. It also ensures data persistence during power outages??critical for smart meters (saving billing data) or industrial sensors (preserving calibration to avoid measurement errors).

Can the DS3660B+ operate in harsh outdoor or industrial environments?

Yes??its -40??C to 85??C operating range meets industrial-grade standards, withstanding extreme cold (e.g., winter smart meters) and heat (e.g., factory floor sensors near machinery). Its robust power supply design resists voltage fluctuations common in industrial grids, while the RTC maintains ??5ppm accuracy even at temperature extremes??unlike consumer-grade MCUs that lose time or fail in harsh conditions.

Which ADI tools support programming and testing the DS3660B+?

ADI EVAL-DS3660 Kit includes a pre-configured DS3660B+, RTC test points, and EEPROM programming tools??letting engineers validate time-stamping and data storage without custom hardware. The Embedded Development Suite offers free compilers, RTC/EEPROM code libraries, and a simulator, enabling fast code development. These tools cut development time by 35% vs. building custom test setups, ensuring faster time-to-market.