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Texas Instruments MSP430F47186IPZR
- Part No.:
- MSP430F47186IPZR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
MSP430F47186IPZR.pdf
- Description:
- IC MCU 16BIT 116KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,269
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Product details
Overview
MSP430F47186IPZR from Texas Instruments is an ultralow-power mixed-signal microcontroller designed for poly-phase electricity metering. It integrates six 16-bit sigma-delta ADCs with differential PGA inputs, 116KB Flash, 8KB RAM, integrated LCD driver (160 segments), four USCI modules (UART/IrDA/SPI/I²C), and dual 16-bit timers. Its 1.8–3.6 V operation, 350 µA active current at 1 MHz/2.2 V, and <6 µs wake-up support battery-powered metering applications.
For engineers reviewing the MSP430F47186IPZR datasheet, MSP430F47186IPZR pinout, MSP430F47186IPZR application, or MSP430F47186IPZR equivalent, key selection criteria include sigma-delta ADC channel count, LCD segment drive capability, Flash/RAM size, low-power mode timing, and QFP-100 package compatibility with metering reference designs like SLAA409.
Technical Context
The MSP430F47186IPZR implements a 16-bit RISC CPU with constant generators and 62.5-ns instruction cycle time, enabling high code efficiency in meter firmware. Its SD16_A module supports six independent 16-bit sigma-delta converters, each with programmable gain and differential input pairs-critical for simultaneous voltage/current/neutral sensing in three-phase meters.
Power management is handled via five software-selectable low-power modes (LPM0–LPM4), with LPM4 drawing only 0.2 µA (RAM retention). Wake-up from standby occurs in under 6 µs using the digitally controlled oscillator (DCO), ensuring rapid response to tamper or event interrupts without sacrificing energy efficiency.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 16 registers and 62.5-ns instruction cycle - enables deterministic real-time metering calculations. |
| Flash / RAM | 116KB Flash / 8KB RAM - sufficient for complex metrology algorithms, communication stacks, and data logging in Class 0.2 meters. |
| Sigma-Delta ADCs | Six 16-bit SD16_A converters with differential PGA inputs - supports concurrent sampling of 6 analog channels (e.g., 3-phase V/I + neutral). |
| Supply Voltage | 1.8 V to 3.6 V - compatible with single-cell Li-ion or 3.3 V industrial rails; brownout detector prevents erratic operation during dips. |
| Low-Power Modes | Five modes including LPM4 (0.2 µA RAM retention) - extends battery life in portable or backup-powered meters. |
| LCD Driver | Integrated driver for up to 160 segments with contrast control - eliminates external LCD bias IC in meter displays. |
| Communication | Four USCI modules: two UART/IrDA/SPI (USCI_A0/A1), two I²C/SPI (USCI_B0/B1) - enables dual-interface metering (e.g., optical port + RS-485). |
Pinout & Package
Package: 100-pin plastic quad flatpack (QFP), PZ package, surface-mount, 0.5 mm pitch. Pin layout optimized for meter PCB routing with dedicated AVSS/DVSS separation, analog input banks (A0.0± to A5.0±), and LCD segment/com drivers distributed across ports P4–P10.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0.0+ / A0.0− | SD16_A analog input pair | Differential input for first sigma-delta ADC channel - used for phase A voltage sensing with programmable PGA gain. |
| A3.0+ / A3.0− | SD16_A analog input pair | Differential input for fourth sigma-delta ADC channel - assigned to neutral current or auxiliary measurement path. |
| P5.0/SVSIN | Analog input / digital I/O | Supplies analog input to supply voltage supervisor - enables configurable brownout threshold detection for system reliability. |
| P10.0–P10.3 / P9.0–P9.7 / P8.0–P8.7 / P7.0–P7.7 / P4.0–P4.7 | LCD segment outputs | Drive up to 40 LCD segments directly - reduces BOM by eliminating external segment drivers in display subsystems. |
| P5.1–P5.4 | LCD common outputs | Provide four backplane signals (COM0–COM3) - supports multiplexed 1/4-duty LCD displays up to 160 segments. |
| USCI_A0RXD / USCI_A0TXD | UART interface pins | Support enhanced UART with auto-baudrate detection - simplifies optical probe integration for field meter configuration and firmware updates. |
Key Features
| Feature | Design Value |
|---|---|
| Three-channel internal DMA | Enables zero-CPU-overhead ADC result transfer to RAM - preserves CPU cycles for metrology math and communication tasks. |
| Real-time clock (RTC) in Basic Timer | Provides accurate time-stamping for energy consumption logs and tariff switching - operates independently in LPM3/LPM4. |
| 32-bit hardware multiplier | Accelerates IEEE 754-compliant floating-point operations required for harmonic analysis and RMS calculation in Class 0.2 meters. |
| On-chip comparator and SVS | Supports tamper detection (e.g., magnetic, cover-open) and supply monitoring - eliminates need for external comparators in certified meter designs. |
| Bootstrap loader & serial programming | Allows field firmware updates via UART without external programmer - critical for post-deployment calibration and security patches. |
Applications
| Smart Electricity Meter | Industrial Energy Monitor |
|---|---|
Use Scenario: Three-phase revenue-grade meter deployed in utility substations or commercial buildings. IC Role / Device Role / Timing Role: Primary metrology controller performing simultaneous 6-channel sigma-delta sampling, harmonic analysis, tariff calculation, and optical/RS-485 communication. Use Value: Six integrated ADCs eliminate external signal conditioning ICs; 116KB Flash stores dual tariff tables, security keys, and firmware update images. | Use Scenario: DIN-rail mounted panel meter for real-time power quality monitoring in manufacturing plants. IC Role / Device Role / Timing Role: Real-time acquisition engine capturing voltage/current waveforms at 1–4 kHz, computing THD, PF, and unbalance metrics. Use Value: Integrated RTC enables time-synchronized waveform capture; LCD driver supports local display of PQ indices without external controllers. |
| Portable Load Analyzer | Prepayment Meter Controller |
Use Scenario: Handheld clamp-on analyzer for electricians verifying circuit loading and grounding integrity. IC Role / Device Role / Timing Role: Battery-powered acquisition node with wake-on-event, ultra-low-power sleep, and Bluetooth LE interface via USCI_B0. Use Value: 0.2 µA LPM4 current extends 10-year battery life; six ADC channels support simultaneous V/I/neutral measurements for leakage detection. | Use Scenario: Prepaid kWh meter with secure token validation and local credit management. IC Role / Device Role / Timing Role: Secure host MCU managing encrypted token parsing, EEPROM-based credit storage, and relay control logic. Use Value: Programmable code protection via security fuse prevents firmware extraction; integrated comparator validates tamper switches on meter cover and terminals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F47176IPZR | 92KB Flash, 8KB RAM, six sigma-delta ADCs - identical peripheral set but 24KB less program memory. | Suitable for simpler metering firmware without advanced diagnostics or multi-tariff history storage. | Select when Flash budget is constrained and no future feature expansion is planned. |
| MSP430F47196IPZR | 120KB Flash, 4KB RAM, six sigma-delta ADCs - adds 4KB Flash but reduces RAM by 4KB versus MSP430F47186IPZR. | Better for Flash-heavy protocols (e.g., DLMS/COSEM stack) but limits runtime buffer space for large waveform buffers. | Choose when protocol stack size dominates over real-time data buffering requirements. |
Compared with MSP430F47176IPZR and MSP430F47196IPZR, the MSP430F47186IPZR uniquely balances 116KB Flash for firmware extensibility and 8KB RAM for concurrent metrology, communication, and logging tasks - making it optimal for next-generation smart meters requiring both security and analytics.
Availability
MSP430F47186IPZR is available at Aetrix Electronics and suitable for smart electricity metering, industrial energy monitoring, and portable load analysis requiring stable component supply across long-lifecycle utility deployments.
Supply support for MSP430F47186IPZR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and connectivity technologies for industrial, automotive, and energy applications.
The MSP430F471xx product line was engineered specifically for electricity metering systems, integrating metrology-grade sigma-delta ADCs, LCD drivers, and ultra-low-power operation to meet IEC 62053 and ANSI C12 standards.
FAQ
What is the maximum number of analog input channels supported by the MSP430F47186IPZR?
The MSP430F47186IPZR supports six independent 16-bit sigma-delta analog-to-digital converters (SD16_A), each with differential input pairs (e.g., A0.0+/A0.0− through A5.0+/A5.0−). This enables true simultaneous sampling of up to six analog channels - ideal for three-phase voltage/current/neutral measurement in revenue-grade meters. Unused analog input pins must be shorted and tied to AVSS per TI design guidelines.
Does the MSP430F47186IPZR include an integrated LCD controller, and how many segments can it drive?
Yes, the MSP430F47186IPZR includes an integrated LCD_A module supporting up to 160 segments with programmable contrast control. It provides eight common outputs (COM0–COM3 plus four additional COM lines via P5.x and P7.x) and dedicated segment outputs across ports P4, P7–P10. This eliminates external LCD bias ICs and reduces bill-of-materials cost in meter display subsystems.
What low-power modes are available on the MSP430F47186IPZR, and what is the lowest current draw?
The MSP430F47186IPZR offers five software-selectable low-power modes (LPM0–LPM4). In LPM4 - the deepest sleep state - it draws only 0.2 µA while retaining full RAM content. Wake-up from LPM4 to active mode takes less than 6 µs using the DCO, enabling rapid response to metering events like tamper detection or pulse interrupts without compromising battery life.
Can the MSP430F47186IPZR perform real-time harmonic analysis, and which hardware features enable this?
Yes, the MSP430F47186IPZR supports real-time harmonic analysis via its 32-bit hardware multiplier (MPY/MPYS/MAC/MACS), 16-bit sigma-delta ADCs sampling at up to 1 kSPS per channel, and three-channel DMA for zero-CPU-overhead data transfer. These features allow efficient computation of FFT-based harmonics (up to 40th order) and RMS values required for IEC 61000-4-7 compliance in power quality meters.
Is the MSP430F47186IPZR pin-compatible with other devices in the MSP430F471xx family?
Yes, the MSP430F47186IPZR uses the same 100-pin QFP (PZ) package and shares identical pinout with all MSP430F471x6 variants (e.g., MSP430F47176IPZR, MSP430F47196IPZR). Signal assignments for power, clocks, USCI, timers, ADC inputs, and LCD outputs are fully aligned - enabling drop-in replacement within the x6 subfamily for design flexibility and BOM rationalization.
MSP430F47186IPZR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 100-LQFP
- Series:
- MSP430x4xx
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- MSP430 CPU16
- Core Size:
- 16-Bit
- Speed:
- 16MHz
- Connectivity:
- I2C, IrDA, LINbus, SCI, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, DMA, LCD, POR, PWM, WDT
- Number of I/O:
- 68
- Program Memory Size:
- 116KB (116K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 8K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 6x16b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430F47186IPZR FAQ
1.How can I place an order for MSP430F47186IPZR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F47186IPZR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MSP430F47186IPZR reliable?
The price and inventory of MSP430F47186IPZR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F47186IPZR is usually 5 days.
3.What payment methods are accepted for MSP430F47186IPZR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F47186IPZR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F47186IPZR?
MSP430F47186IPZR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F47186IPZR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MSP430F47186IPZR?
For technical support, including MSP430F47186IPZR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F47186IPZR requirements.
6.How does Aetrix verify that MSP430F47186IPZR is sourced from the original manufacturer or authorized distributors?
All MSP430F47186IPZR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MSP430F47186IPZR meets industry standards.
7.What is the process for return or replacement of MSP430F47186IPZR?
All MSP430F47186IPZR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F47186IPZR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MSP430F47186IPZR part is unused and in its original packaging.
Return procedure for MSP430F47186IPZR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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