MSP430F6733IPZ - 16-Bit Metering MCU with 3 ADCs | Texas Instruments
料号： MSP430F6733IPZ ✓ 量产中MSP430F6733IPZ 概述
A mixed-signal microcontroller combines a digital control processor with analog measurement resources on one device. The MSP430 belongs to the low-power MCU hierarchy, combining a 16-bit RISC CPU, mixed-signal peripherals, and energy-conscious design in a single integrated circuit. This integration is especially useful in electricity meters, industrial sensing systems, and equipment that must acquire precision analog measurements while controlling communications and displays.
The MSP430F6733IPZ provides three high-performance 24-bit sigma-delta ADCs and one 10-bit ADC. Its four enhanced universal serial communication interfaces comprise three eUSCI_A modules and one eUSCI_B module, supporting serial communication and external-interface requirements. Four 16-bit timers, DMA, a hardware multiplier, an RTC with alarm capabilities, and an integrated-contrast LCD driver reduce the need for external components in metering designs.
The device uses a 16-bit MSP430 RISC core operating at up to 25 MHz and includes 64 KB of Flash plus 4 KB of RAM. Its mixed-signal architecture separates precision measurement from general-purpose digital processing, while sigma-delta conversion is appropriate for slowly changing sensor signals in energy-metering and industrial applications. The integrated RTC supports time-based measurement, scheduling, and alarm functions.
Typical uses include single-phase electricity meters, smart-grid terminal equipment, industrial process monitors, energy-management terminals, and LCD-based instrumentation. The three sigma-delta channels enable concurrent or sequential analog acquisition, while the LCD driver supports local meter-display designs. Serial interfaces provide a path to communications peripherals, and DMA can move sampled data with limited CPU intervention.
PCB design should account for analog and digital return paths around the metering inputs, decoupling requirements for each supply rail, exposed thermal and ground-pin assignments, and the 14 mm by 14 mm LQFP footprint. Use the pin-description and layout guidance in the manufacturer datasheet when assigning tracks and planning analog isolation.
This page consolidates the MSP430F6733IPZ metering architecture, package details, application guidance, parameter comparisons, and practical replacement considerations into a focused engineering reference.
直接替换替代料： MSP430F6733IPZ ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
MSP430F6730IPZ
✅ 直接替换📋 参考替代料（不在目录中）
MSP430F6731IPZ
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
MSP430F6732IPZ
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
MSP430F6734IPZ
✅ 直接替换📋 参考替代料（不在目录中）
MSP430F6736IPZ
✅ 直接替换📋 参考替代料（不在目录中）
MSP430F6733IPZ 最大额定值与电气特性
| Product Type | Mixed-signal microcontroller and single-phase metering SoC |
| CPU Architecture | 16-bit RISC |
| Maximum CPU Frequency | 25 MHz |
| Flash Memory | 64 KB |
| RAM | 4 KB |
| Sigma-Delta ADC Count | 3 channels |
| Sigma-Delta ADC Resolution | 24-bit |
| Additional ADC | 10-bit |
| Enhanced USCI_A Modules | 3 modules |
| Enhanced USCI_B Modules | 1 module |
| Timer Count | 4 timers |
| Timer Resolution | 16-bit |
| DMA | 1 hardware DMA module |
| Hardware Multiplier | 1 hardware multiplier |
| Real-Time Clock | 1 RTC module with alarm capabilities |
| LCD Driver | Integrated LCD driver with contrast control |
| 封装 | 100-LQFP (14 mm x 14 mm) |
| Terminal Count | 100 terminals |
| Temperature Grade | Industrial |
| 安装类型 | Surface mount |
MSP430F6733IPZ 100-lqfp (14 mm x 14 mm) 引脚配置指南
MSP430F6733IPZ（100-lqfp (14 mm x 14 mm) 封装）的引脚配置。 该模拟元件具有输入、输出和电源引脚。请参阅制造商数据手册以了解失调调零、补偿和使能引脚配置。适用于信号调理和放大器电路。
暂无详细引脚数据： MSP430F6733IPZ.
请参阅 数据手册 以查看完整引脚配置。
典型应用
MSP430F6733IPZ 适用于 6 应用s: Single-Phase Electricity Meter, Smart-Grid Terminal, Industrial Process Monitor, Energy-Management Terminal, LCD-Based Environmental Instrumentation, Battery-Powered Sensor Node.
Single-Phase Electricity Meter
The MSP430F6733IPZ fits single-phase electricity meters because it combines three 24-bit sigma-delta ADCs with a 25 MHz 16-bit control core. The ADCs support current and voltage signal acquisition, while the 4 KB RAM and 64 KB Flash provide space for measurement algorithms, calibration data, and metering code. Its RTC with alarm capabilities supports time-of-use schedules, and the integrated LCD driver simplifies local display designs. Designers should preserve the manufacturer's analog grounding and filtering guidance because converter accuracy and interference rejection depend on the complete current and voltage front end.
推荐
Smart-Grid Terminal
The MSP430F6733IPZ is suitable for smart-grid terminal functions that combine measurement, local display, timekeeping, and communications. Its three 24-bit sigma-delta ADC channels provide precision acquisition, while four enhanced universal serial communication interfaces create interfaces for external communications or metering peripherals. The 64 KB of Flash supports protocol and control firmware, and DMA can transfer sampled data with reduced CPU activity. Power-system deployment also requires system-level grounding, isolation, surge protection, and regulatory validation beyond the microcontroller itself.
推荐
Industrial Process Monitor
The MSP430F6733IPZ supports industrial process monitoring where several slow-changing analog inputs must be acquired alongside local control and display. Three 24-bit sigma-delta channels offer high-resolution measurement, and the integrated 10-bit ADC provides an additional conversion path. Four 16-bit timers can handle periodic sampling and timing functions, while the hardware multiplier and DMA improve arithmetic and data-transfer efficiency. The 64 KB Flash accommodates application code, and the LCD driver can reduce display-driver component count in panel-mounted instrumentation.
推荐
Energy-Management Terminal
The MSP430F6733IPZ can implement an energy-management terminal that measures consumption, displays operating information, and records time-dependent events. The three sigma-delta ADCs are suited to current and voltage sensing, while the RTC with alarm capabilities supports scheduled reading intervals and load-control events. Its 16-bit RISC CPU operates at up to 25 MHz, providing enough performance for signal processing and communications control. Firmware can use DMA for efficient acquisition and the LCD driver for a compact local user interface.
推荐
LCD-Based Environmental Instrumentation
The MSP430F6733IPZ fits compact instrumentation that combines analog sensing with a local LCD. The integrated LCD driver with contrast control removes the need for a separate display-driver IC in suitable segment applications, while three 24-bit sigma-delta channels can acquire low-bandwidth sensor outputs. The 25 MHz processor supports control logic, filtering, calibration, and communications. Because the MCU is designed for metering-class mixed-signal measurement, sensor excitation, reference routing, and analog trace layout require careful isolation from the digital display and communication circuitry.
推荐
Battery-Powered Sensor Node
The MSP430F6733IPZ can serve as the control device in a low-duty-cycle sensor node because it combines analog acquisition, timers, RTC support, communications peripherals, and LCD capability in one package. Its 16-bit RISC architecture supports compact metering logic, and DMA can move sensor data while reducing processor intervention. The three 24-bit sigma-delta channels support precision measurement from resistive, capacitive, or current-derived sensors. Battery suitability depends on the complete operating profile, including time spent in active mode, analog conversion frequency, and communication duty cycle.
推荐
推荐产品汇总
工程参考数据： MSP430F6733IPZ ——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 | MSP430F6730IPZ | MSP430F6731IPZ | MSP430F6732IPZ | MSP430F6734IPZ | MSP430F6736IPZ |
|---|---|---|---|---|---|---|
| Package | 100-LQFP (14 mm x 14 mm) | 100-LQFP (14 mm x 14 mm) | 100-LQFP (14 mm x 14 mm) | 100-LQFP (14 mm x 14 mm) | 100-LQFP (14 mm x 14 mm) | 100-LQFP (14 mm x 14 mm) |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| CPU Architecture | 16-bit RISC | 16-bit RISC | 16-bit RISC | 16-bit RISC | 16-bit RISC | 16-bit RISC |
关键差异点
- Higher precision ADC integration than reduced-channel family members （对比 MSP430F6732IPZ)
- Complete metering SoC integration reduces external support components （对比 MSP430F6734IPZ)
- 16-bit RISC core supports metering calculation and control （对比 MSP430F6736IPZ)
设计说明
Separate analog and digital return paths as closely as the package permits, and place input filtering components near the associated ADC pins. The three sigma-delta channels are intended for precision metering signals, so trace coupling from switching nodes, LCD outputs, and communication interfaces can degrade measurement quality. Follow the manufacturer datasheet's analog-layout example and keep the reference and auxiliary-supply routing short.
Place every required bypass capacitor at its associated supply pins and provide a low-impedance ground reference for the ADC circuitry. The 100-LQFP package offers enough pins for dedicated analog and digital connections, but correct land geometry, pad numbering, and thermal-via recommendations must follow the TI package drawing. Verify the board against the pin-description table before release because unused and alternate-function terminals must not be left without a defined state.
Do not treat a shared 100-LQFP footprint as proof that any MSP430F67x device is interchangeable. Before substituting MSP430F6730IPZ, MSP430F6731IPZ, MSP430F6732IPZ, MSP430F6734IPZ, or MSP430F6736IPZ, compare ADC-channel assignments, auxiliary supply routing, LCD segment mapping, communication peripheral multiplexing, pin states, and device-specific errata. Revalidate calibration constants and measurement accuracy after any analog-resource change.
Plan the digital and analog supply rails independently because the metering architecture includes an auxiliary supply arrangement. Check minimum headroom, startup order, decoupling, and load-transient requirements against the datasheet limits. Do not infer analog-supply tolerances from the digital operating range, and verify that the analog reference remains stable across temperature and conversion activity.
合规信息
The MSP430F6733 is identified as an industrial-grade mixed-signal microcontroller. Specific RoHS, REACH, lead-free, halogen-free, and conflict-minerals declarations are not stated in the available product information and must be confirmed on the Texas Instruments product page or supporting compliance documentation.
