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Texas Instruments MSP430FE4272IPM
- Part No.:
- MSP430FE4272IPM
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
MSP430FE4272IPM.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,655
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Product details
Overview
MSP430FE4272IPM from Texas Instruments is a 16-bit ultra-low-power mixed-signal microcontroller designed for single-phase energy metering, featuring 32KB Flash + 256B information memory + 1KB RAM, dual 16-bit sigma-delta ADCs (SD16), and integrated ESP430CE1B signal processor core for real-time watt-hour calculation in 2-wire/3-wire configurations.
For engineers reviewing the MSP430FE4272IPM datasheet, MSP430FE4272IPM pinout, MSP430FE4272IPM application, or MSP430FE4272IPM equivalent, this device delivers verified metering-specific peripherals-including LCD driver for 128 segments, FLL+ clock system with sub-6-µs wake-up, and UART/SPI serial interface-enabling rapid deployment in certified utility-grade electricity meters.
Technical Context
The MSP430FE4272IPM implements a dedicated ESP430CE1B hardware accelerator that executes embedded signal processing for active/reactive energy, power factor, and RMS voltage/current using two independent SD16 converters with programmable gain and offset calibration. Its FLL+ module locks DCO to 32.768-kHz crystal input to generate stable 1–8 MHz MCLK without external components.
It integrates Timer_A3 with three capture/compare registers for precise timing of metering intervals and pulse outputs, while its 14 GPIO pins (P1.0–P1.7, P2.0–P2.5) support configurable interrupt edges, JTAG debugging, and BSL serial programming via P1.0/P1.1-enabling secure field firmware updates without external programmers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 125-ns instruction cycle; supports register-to-register ops in one cycle for deterministic metering firmware execution. |
| Memory | 32KB Flash (main), 256B info memory, 1KB RAM; enables full IEC 62056-compliant meter firmware with calibration tables and security keys. |
| ADC System | Dual 16-bit sigma-delta converters (SD16) with internal reference; measures current (I1+/I1−) and voltage (V1+/V1−) simultaneously for true RMS and harmonic analysis. |
| Power Modes | Active mode: 400 µA @ 1 MHz/3.0 V; LPM4: 0.1 µA; five software-selectable low-power modes optimize battery life in portable or backup-powered meters. |
| LCD Driver | Supports static/2-/3-/4-MUX displays up to 128 segments (S0–S31, COM0–COM3); eliminates external segment drivers in compact meter front panels. |
| Clock System | FLL+ with 32.768-kHz crystal input; generates ACLK, MCLK, SMCLK; wake-up from LPM4 to active mode in <6 µs for rapid event response. |
| Operating Voltage | 2.7 V to 3.6 V supply range; compatible with standard 3.3-V meter power rails and brownout detection at programmable thresholds. |
Pinout & Package
Package: 64-pin plastic QFP (PM), RoHS-compliant, 10 mm × 10 mm body, 0.5 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (DVCC) | Digital power supply positive | Primary 3.3-V digital rail for CPU, timers, and digital I/O; must power up before AVCC per sequencing requirement. |
| 2–3 (I1+, I1−) | Current channel analog inputs | Differential inputs to SD16 Channel 0; connect to current transformer or shunt for high-accuracy ampere measurement. |
| 6–7 (V1+, V1−) | Voltage channel analog inputs | Differential inputs to SD16 Channel 1; interface directly to resistive divider for line voltage sensing. |
| 8–9 (XIN/XOUT) | 32.768-kHz crystal oscillator terminals | Drive watch crystal for ACLK generation; essential for FLL+ stability and metrology-grade timebase accuracy. |
| 10 (VREF) | Reference voltage I/O | Configurable as internal 1.2-V reference output or external reference input; sets SD16 full-scale range for consistent ADC performance. |
| 12–35 (S0–S23) | LCD segment outputs | Direct-drive outputs for up to 24 LCD segments; used with COM0–COM3 to drive 4-MUX displays without external bias circuitry. |
| 36–39 (COM0–COM3) | LCD common outputs | Backplane drivers supporting 4-MUX LCDs; enable multiplexed display of kWh, tariff, and status indicators in space-constrained meters. |
| 44–51 (P2.1–P1.2) | Multi-function GPIO | Shared with UART (P2.4/P2.5), SPI (P1.6/P1.7), Timer_A (P1.0/P1.2), and SVS (P2.3); configurable per meter peripheral needs. |
| 52–53 (P1.1/P1.0) | BSL serial interface | Factory-programmed bootstrap loader pins; enable UART-based firmware updates in deployed meters without JTAG hardware. |
| 54–57 (TDO/TDI/TMS/TCK) | JTAG debug interface | Standard 4-pin boundary-scan port for development, verification, and production programming of Flash and security fuse. |
| 58 (RST/NMI) | Reset/non-maskable interrupt | Hardware reset input; also serves as NMI source for critical events like tamper detection or voltage sag recovery. |
| 62–64 (AVSS, DVSS, AVCC) | Analog/digital ground and analog supply | Separate analog/digital grounds reduce noise coupling into SD16; AVCC powers ADC, SVS, and oscillator-must ramp after DVCC. |
Key Features
| Feature | Design Value |
|---|---|
| ESP430CE1B Embedded Signal Processor | Hardware-accelerated single-phase energy calculation engine; computes Wh, VARh, PF, and harmonics without CPU intervention-reducing firmware complexity and improving metrology repeatability. |
| Dual Independent SD16 Converters | 16-bit sigma-delta ADCs with programmable gain (1×/2×/4×/8×), offset calibration, and 100-ksps effective sampling; supports simultaneous voltage/current acquisition for phase-angle accuracy. |
| Integrated LCD Controller | Drives 128 segments across 4 backplanes (COM0–COM3); supports static, 2-, 3-, and 4-MUX displays-eliminates external LCD drivers and reduces BOM cost in meter front-ends. |
| FLL+ Frequency-Locked Loop | Digitally controlled oscillator locked to 32.768-kHz crystal; provides stable MCLK up to 8 MHz with <±0.5% frequency error over temperature-ensuring accurate time-integrated energy measurement. |
| Ultra-Low-Power Operation | 0.1 µA off-mode (RAM retention) and sub-6-µs wake-up from LPM4; enables >10-year battery life in AMI endpoint meters with periodic RF wake-up and burst transmission. |
Applications
| Smart Electricity Meter | Prepayment Energy Meter |
|---|---|
|
Use Scenario: Utility-grade residential meter measuring active/reactive energy, demand, and tamper events under IEC 62053-21/62053-22 compliance. IC Role / Device Role / Timing Role: Primary metrology MCU executing ESP430CE1B calculations, driving LCD display, and communicating via optical port or PLC modem. Use Value: Dual SD16 converters with matched gain/offset deliver <0.1% error over 1000:1 dynamic range-meeting Class 0.5S accuracy requirements without external calibration hardware. |
Use Scenario: Pay-as-you-go meter requiring secure credit validation, local energy accounting, and LCD-based balance display in low-infrastructure regions. IC Role / Device Role / Timing Role: Standalone metering controller managing EEPROM-based credit storage, real-time kWh subtraction, and tamper-locked LCD update logic. Use Value: On-chip Flash with programmable security fuse prevents unauthorized firmware modification; BSL enables remote credit top-up via optical UART link. |
| Portable Load Analyzer | Industrial Sub-Meter |
|
Use Scenario: Handheld tool for electricians measuring load profiles, harmonics, and power quality on 230-V/400-V circuits during commissioning or troubleshooting. IC Role / Device Role / Timing Role: Core data acquisition unit synchronizing SD16 sampling to zero-crossing detection and timestamping events with Timer_A3. Use Value: FLL+-stabilized MCLK ensures ±50 ppm timebase accuracy over −40°C to +85°C-critical for harmonic distortion (THD) and flicker (Pst) measurements per IEC 61000-4-7/4-15. |
Use Scenario: DIN-rail mounted sub-meter monitoring HVAC, lighting, or machinery energy consumption in commercial buildings with Modbus RTU communication. IC Role / Device Role / Timing Role: Isolated metering node interfacing SD16 inputs to isolated RS-485 transceiver via USART0 in UART mode. Use Value: 14 GPIO pins support opto-isolated digital inputs for status monitoring (e.g., compressor run signal) alongside metrology-enabling combined energy + operational analytics. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar single-phase energy metering applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FE4252IPM | 16KB Flash, 512B RAM, identical peripherals and pinout; lacks 16KB of program space for advanced tariff or DLMS stack. | Suitable for basic Class 1 meters with minimal firmware features; not recommended for DLMS/COSEM or multi-tariff deployments requiring >24KB code space. | Select when cost sensitivity outweighs future firmware scalability; verify Flash usage remains below 14KB with safety margin. |
| MSP430FE427IPM | Same 32KB Flash and 1KB RAM, but no integrated LCD driver; requires external segment drivers for display functionality. | Applicable where display is omitted or implemented via external controller; increases BOM count and PCB area versus MSP430FE4272IPM's integrated solution. | Choose only if display is unnecessary or handled by separate SoC; otherwise, MSP430FE4272IPM reduces component count and layout complexity. |
Compared with MSP430FE4252IPM and MSP430FE427IPM, the MSP430FE4272IPM uniquely combines maximum Flash capacity, full LCD integration, and identical metrology peripherals-making it the optimal choice for feature-rich, display-equipped single-phase meters targeting long-term firmware maintainability and certification reuse.
Availability
MSP430FE4272IPM is available at Aetrix Electronics and suitable for smart electricity meter, prepayment energy meter, portable load analyzer, and industrial sub-meter applications requiring stable component supply across multi-year production cycles.
Supply support for MSP430FE4272IPM 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 with over 50 years of innovation in precision metrology and low-power design.
The MSP430FE42x2 product line was engineered specifically for ANSI C12 and IEC 62053-compliant single-phase energy meters, integrating metrology-grade ADCs, signal processing acceleration, and display drivers into a single ultra-low-power MCU platform.
FAQ
What is the primary metrology function of the MSP430FE4272IPM?
The MSP430FE4272IPM integrates the ESP430CE1B hardware module to perform real-time, single-phase energy calculations-including active/reactive energy (Wh/VAh), power factor, RMS voltage/current, and harmonics-using dual 16-bit sigma-delta ADCs. This eliminates CPU overhead and ensures repeatable, standards-compliant metrology without external DSP.
Does the MSP430FE4272IPM support IEC 62053-21 Class 0.5S accuracy?
Yes, the MSP430FE4272IPM achieves Class 0.5S accuracy when configured per TI Application Report SLAA332: its dual SD16 converters provide matched gain/offset, 100-ksps effective sampling, and hardware-calibrated linearity-enabling <0.1% total error over 1000:1 dynamic range under specified operating conditions.
How does the FLL+ clock system benefit energy metering in the MSP430FE4272IPM?
The FLL+ in the MSP430FE4272IPM locks the DCO to a 32.768-kHz crystal to generate stable MCLK up to 8 MHz with ±0.5% accuracy over temperature. This ensures precise timebase for energy integration, zero-crossing detection, and harmonic analysis-meeting IEC 61000-4-7 timing requirements for THD measurement.
Can the MSP430FE4272IPM drive a 4-MUX LCD without external components?
Yes, the MSP430FE4272IPM's integrated LCD controller drives up to 128 segments using four common outputs (COM0–COM3) and 32 segment outputs (S0–S31). It natively supports 4-MUX operation with internal bias generation-requiring no external resistors, capacitors, or driver ICs for compliant LCD interfaces.
What programming interfaces are supported by the MSP430FE4272IPM?
The MSP430FE4272IPM supports JTAG (TCK/TMS/TDI/TDO pins) for full-featured development and production programming, plus UART-based Bootstrap Loader (BSL) via P1.0/P1.1 for field firmware updates. Both interfaces support Flash write protection and security fuse configuration to prevent unauthorized access.
MSP430FE4272IPM Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 64-LQFP
- Series:
- MSP430x4xx
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Verified
- Core Processor:
- MSP430 CPU16
- Core Size:
- 16-Bit
- Speed:
- 8MHz
- Connectivity:
- SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, LCD, POR, PWM, WDT
- Number of I/O:
- 14
- Program Memory Size:
- 32KB (32K x 8 + 256B)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 1K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 2x16b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430FE4272IPM FAQ
1.How can I place an order for MSP430FE4272IPM through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FE4272IPM 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 MSP430FE4272IPM reliable?
The price and inventory of MSP430FE4272IPM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FE4272IPM is usually 5 days.
3.What payment methods are accepted for MSP430FE4272IPM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FE4272IPM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FE4272IPM?
MSP430FE4272IPM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FE4272IPM 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 MSP430FE4272IPM?
For technical support, including MSP430FE4272IPM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FE4272IPM requirements.
6.How does Aetrix verify that MSP430FE4272IPM is sourced from the original manufacturer or authorized distributors?
All MSP430FE4272IPM 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 MSP430FE4272IPM meets industry standards.
7.What is the process for return or replacement of MSP430FE4272IPM?
All MSP430FE4272IPM units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FE4272IPM, 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 MSP430FE4272IPM part is unused and in its original packaging.
Return procedure for MSP430FE4272IPM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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