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Texas Instruments MSP430F6765AIPEU
- Part No.:
- MSP430F6765AIPEU
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 128-LQFP
- Datasheet:
-
MSP430F6765AIPEU.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 128LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,092
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Product details
Overview
MSP430F6765AIPEU from Texas Instruments is a polyphase metering SoC designed for high-accuracy energy measurement in 3-phase utility meters. It integrates six 24-bit sigma-delta ADCs, a 25-MHz CPU with 32-bit multiplier, 128KB flash, 16KB RAM, LCD controller (320 segments), AES-128 encryption, and seven communication interfaces-including four UART/IrDA/SPI-capable eUSCI_A modules and two I²C/SPI-capable eUSCI_B modules-enabling ANSI C12.20 and IEC 62053-compliant meter designs.
For engineers reviewing the MSP430F6765AIPEU datasheet, MSP430F6765AIPEU pinout, MSP430F6765AIPEU application, or MSP430F6765AIPEU equivalent, key selection considerations include its 128-pin LQFP package with 90 GPIOs, ultra-low-power operation (0.18 µA in LPM4.5), dedicated pulse output pins for active/reactive energy calibration, digital phase correction for CT sensors, and support for shunt/CT/Rogowski current sensing across three phases plus neutral.
Technical Context
The MSP430F6765AIPEU implements a metrology-optimized architecture with independent SD24_B sigma-delta modulators per channel, each supporting differential inputs and programmable gain to achieve <0.1% error over 2000:1 dynamic range at 40–70 Hz line frequency. Its dedicated hardware accelerators-including DMA, CRC-16, and AES-128-offload metrology calculations from the CPU, enabling real-time 4-quadrant power computation per phase.
Power management includes multiple low-power modes (LPM3: 2.1 µA, LPM3.5: 0.34 µA, LPM4.5: 0.18 µA), automatic supply switching between AC mains and backup battery, and LCD operation at 3 µA during mains failure. The RTC features tamper detection, crystal offset calibration, and temperature compensation-critical for revenue-grade metering integrity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Flash Memory | 128 KB single-cycle flash-sufficient for full metrology firmware, calibration tables, and secure boot code. |
| RAM | 16 KB single-cycle RAM-supports simultaneous storage of raw ADC samples, computed energy registers, and communication buffers. |
| Sigma-Delta ADCs | 6 independent 24-bit SD24_B converters-enables concurrent voltage/current sampling on up to three phases + neutral with >100 dB SNR. |
| CPU Core | 25-MHz 16-bit RISC CPU with integrated 32-bit hardware multiplier-executes complex metrology algorithms (e.g., RMS, fundamental, harmonic analysis) in real time. |
| eUSCI Interfaces | 4 × eUSCI_A (UART/IrDA/SPI), 2 × eUSCI_B (I²C/SPI)-supports HAN, PLC, optical port, and secure MCU-to-metering ASIC communication. |
| Low-Power Modes | LPM4.5 draws 0.18 µA at 3 V-enables >10-year battery life in backup mode for critical data retention during AC failure. |
| LCD Driver | Supports up to 320 segments with contrast control-drives large-format utility meter displays without external bias circuitry. |
Pinout & Package
128-pin LQFP (PEU) package, 20 mm × 14 mm body size, 0.5 mm pitch, 90 general-purpose I/O pins, thermally enhanced exposed pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SD0P0 / SD0N0 – SD6P0 / SD6N0 | Differential analog inputs for sigma-delta modulators | Accepts ±2.5 V differential signals from current transformers or shunts; supports up to six current/voltage channels. |
| VREF | Reference voltage input for ADCs | Accepts external 2.5 V reference for highest metrology accuracy; internal reference also available. |
| COM0–COM7 | LCD common outputs | Drives up to 8 multiplexed LCD commons for 320-segment display with software-controlled contrast. |
| P1.0 / P1.1 (VeREF− / VeREF+) | ADC auxiliary reference inputs | Enable ratiometric measurement using external sensor references or internal bandgap-derived references. |
| eUSCI_A0–A3, eUSCI_B0–B1 | Serial communication peripherals | Configurable as UART (optical port), SPI (PLC modem), or I²C (secure element interface) with independent clock domains. |
Key Features
| Feature | Design Value |
|---|---|
| 0.1% accuracy over 2000:1 dynamic range | Enables Class 0.2 meter compliance without external calibration trim components. |
| Dedicated pulse output pins (active/reactive) | Hardware-generated kWh/kVArh pulses eliminate CPU overhead and ensure deterministic timing for calibration. |
| Digital phase correction for CTs | Compensates for current transformer phase lag in firmware-no external analog phase-shift networks required. |
| Password-protected RTC with tamper detection | Prevents clock manipulation attacks; logs tamper events to secure memory with battery-backed retention. |
| Temperature-compensated energy measurement | Uses on-chip temperature sensor and lookup tables to correct metrology errors across –40°C to +85°C. |
Applications
| Smart Electricity Meter | Revenue-Grade Energy Monitor |
|---|---|
Use Scenario: Installed in residential/commercial 3-phase 4-wire service entrances for billing-grade consumption tracking. IC Role / Device Role / Timing Role: Primary metrology SoC performing real-time voltage/current sampling, harmonic analysis, tariff calculation, and secure data logging. Use Value: Meets ANSI C12.20 Class 0.2 and IEC 62053-22 requirements with single-chip integration-reducing BOM count by 30% vs. discrete ADC + MCU solutions. |
Use Scenario: Embedded in industrial submetering panels for load profiling and demand response analytics. IC Role / Device Role / Timing Role: High-precision energy accumulator with timestamped 15-minute interval registers and tamper-proof audit trail. Use Value: Delivers <0.1% error at 10 mA–20 A (2000:1) without recalibration-enabling accurate cost allocation across tenant circuits. |
| AMI Endpoint Node | Grid Edge Sensor Node |
Use Scenario: Integrated into cellular/NB-IoT-enabled smart meters for remote firmware updates and encrypted data transmission. IC Role / Device Role / Timing Role: Secure host processor managing TLS handshake, AES-encrypted payload generation, and low-power wake-up scheduling. Use Value: On-chip AES-128 and secure bootloader eliminate need for external crypto co-processor-reducing bill-of-materials and attack surface. |
Use Scenario: Deployed in distribution transformer monitoring units for voltage sag/swell detection and PQ event capture. IC Role / Device Role / Timing Role: Real-time power quality analyzer capturing 16k samples/sec across six channels with cycle-by-cycle RMS and THD calculation. Use Value: Six independent SD24_B ADCs enable simultaneous sampling of all phase voltages and currents-capturing transient events with <10 µs inter-channel skew. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar polyphase metering applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F6766AIPEU | 256 KB flash, 16 KB RAM, same 6-ADC configuration and package | Supports larger firmware images for advanced tariff schemes and extended diagnostics | Select when future firmware expansion or dual-tariff + demand-response logic requires >128 KB code space. |
| MSP430F6765AIPZ | Identical core specs but 100-pin LQFP (62 I/O), smaller 14 mm × 14 mm footprint | Reduces PCB area by 35% but sacrifices 28 GPIOs and 2 LCD commons | Select for space-constrained designs where I/O count and segment count are not limiting factors. |
Compared with MSP430F6765AIPEU, the MSP430F6766AIPEU provides headroom for feature-rich firmware without changing layout, while the MSP430F6765AIPZ trades I/O and display capability for compactness-neither is pin-compatible, but both share identical metrology IP and instruction set compatibility.
Availability
MSP430F6765AIPEU is available at Aetrix Electronics and suitable for smart electricity metering, revenue-grade energy monitoring, and AMI endpoint node development requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for MSP430F6765AIPEU 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 delivering analog and embedded processing solutions, with deep expertise in low-power microcontrollers and precision metrology ICs.
The MSP430F6765AIPEU belongs to TI's Metrology and Monitoring MCU portfolio, engineered specifically for ANSI/IEC-compliant utility metering applications demanding high accuracy, security, and ultra-low-power operation across wide temperature ranges.
FAQ
What is the maximum number of current/voltage channels supported by the MSP430F6765AIPEU?
The MSP430F6765AIPEU integrates six independent 24-bit sigma-delta ADCs (SD24_B), enabling simultaneous sampling of up to six differential analog inputs-typically configured for three phase voltages, three phase currents, or combinations including neutral current. This matches the requirement for 3-phase 4-wire metering with full per-phase power calculation. The MSP430F6765AIPEU does not support more than six SD24_B channels.
Does the MSP430F6765AIPEU include hardware-accelerated encryption?
Yes, the MSP430F6765AIPEU includes a dedicated hardware AES-128 encryption module compliant with FIPS PUB 197. It supports ECB, CBC, and CTR modes with zero CPU intervention, enabling secure firmware updates, encrypted meter data transmission, and tamper-resistant key storage-critical for ANSI C12.22 and DLMS/COSEM protocol implementations.
What low-power modes are available on the MSP430F6765AIPEU, and what is the lowest current draw?
The MSP430F6765AIPEU offers six low-power modes, with LPM4.5 (shutdown mode) drawing just 0.18 µA at 3 V. In this mode, only the RTC and a limited RAM retention domain remain active-enabling >10 years of battery-backed operation for timekeeping and critical event logging during AC mains failure. Wake-up latency is under 5 µs from LPM3.
Can the MSP430F6765AIPEU drive a 320-segment LCD display without external components?
Yes, the MSP430F6765AIPEU includes an integrated LCD_C peripheral supporting up to 320 segments (8 commons × 40 segments) with programmable contrast control, internal charge pump, and software-configurable bias and frame frequency. No external capacitors or bias resistors are required for basic operation, though LCDCAP pin filtering is recommended for noise immunity.
How does the MSP430F6765AIPEU meet ANSI C12.20 and IEC 62053 standards?
The MSP430F6765AIPEU achieves <0.1% accuracy over 2000:1 dynamic range at 40–70 Hz line frequency-meeting Class 0.2 requirements of both ANSI C12.20 and IEC 62053-22. Its digital phase correction, temperature compensation, and 24-bit ADC resolution eliminate need for external analog trimming, and its pulse output pins provide metrology-grade timing for third-party calibration verification.
MSP430F6765AIPEU Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 128-LQFP
- Series:
- MSP430F6xx
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- MSP430 CPUXV2
- Core Size:
- 16-Bit
- Speed:
- 25MHz
- Connectivity:
- I2C, IrDA, LINbus, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, DMA, LCD, POR, PWM, WDT, 6x24b Sigma Delta Converter
- Number of I/O:
- 90
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 8x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430F6765AIPEU FAQ
1.How can I place an order for MSP430F6765AIPEU through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F6765AIPEU 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 MSP430F6765AIPEU reliable?
The price and inventory of MSP430F6765AIPEU are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F6765AIPEU is usually 5 days.
3.What payment methods are accepted for MSP430F6765AIPEU?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F6765AIPEU transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F6765AIPEU?
MSP430F6765AIPEU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F6765AIPEU 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 MSP430F6765AIPEU?
For technical support, including MSP430F6765AIPEU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F6765AIPEU requirements.
6.How does Aetrix verify that MSP430F6765AIPEU is sourced from the original manufacturer or authorized distributors?
All MSP430F6765AIPEU 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 MSP430F6765AIPEU meets industry standards.
7.What is the process for return or replacement of MSP430F6765AIPEU?
All MSP430F6765AIPEU units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F6765AIPEU, 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 MSP430F6765AIPEU part is unused and in its original packaging.
Return procedure for MSP430F6765AIPEU:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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