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Texas Instruments MSP430F6726IPZ
- Part No.:
- MSP430F6726IPZ
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
MSP430F6726IPZ.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:130
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Product details
Overview
MSP430F6726IPZ from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller designed for single-phase electronic watt-hour metering. It integrates two 24-bit sigma-delta ADCs, a 10-bit 200-ksps ADC, LCD driver supporting up to 320 segments, and three eUSCI_A modules (UART/IrDA/SPI) plus one eUSCI_B (I²C/SPI), all in a 100-pin LQFP package with 128 KB Flash and 8 KB RAM.
For engineers reviewing the MSP430F6726IPZ datasheet, MSP430F6726IPZ pinout, MSP430F6726IPZ application, or MSP430F6726IPZ equivalent, key selection criteria include its dual SD24_B ADC configuration for current/voltage channel separation, RTC with crystal offset calibration, auxiliary supply support for backup subsystem operation, and compliance with IEC 62053-21/22 metering standards.
Technical Context
The MSP430F6726IPZ implements a 16-bit RISC CPU with extended memory addressing and constant generators for high code efficiency. Its unified clock system includes FLL stabilization, VLO and REFO internal sources, and 32-kHz XT1 crystal support - enabling precise timekeeping and low-jitter sampling for metrology-grade measurements.
Power management features include a programmable LDO core regulator, supply voltage supervision (SVM/SVS), brownout reset (BOR), and five low-power modes (LPM0–LPM4.5) with sub-µA RTC retention (1.24 µA typical in LPM3.5). The device supports separate analog (AVCC/AVSS), digital (DVCC/DVSS), and auxiliary (AUXVCC1–3) supply domains for noise isolation in metering applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 25-MHz max system clock and hardware multiplier for 32-bit operations |
| Flash / RAM | 128 KB Flash (in-system programmable, no external VPP) and 8 KB SRAM for firmware and measurement buffers |
| ADC System | Two independent 24-bit sigma-delta ADCs (SD24_B) + one 10-bit 200-ksps ADC with internal reference and temperature sensor |
| Low-Power Modes | LPM3.5 (RTC active, crystal): 1.24 µA @ 3.0 V; LPM4.5 (shutdown): 0.78 µA @ 3.0 V - enabling >10-year battery life in tamper-resist meters |
| Communication | Three eUSCI_A modules (UART/IrDA/SPI) + one eUSCI_B (I²C/SPI); JTAG/SBW debug interface on dedicated pins |
| LCD Driver | Integrated LCD_C module supporting 8-mux mode with up to 320 segments and programmable contrast control |
| Package | 100-pin LQFP (PZ), 14 mm × 14 mm body, 0.5-mm pitch - compatible with standard reflow and automated optical inspection |
Pinout & Package
Package: 100-pin LQFP (PZ), 14 mm × 14 mm, 0.5-mm pitch. Pinout validated per TI SLAS731D Rev. September 2018, Figure 4-1 and Table 4-1 (MSP430F672xIPZ-specific mapping).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1–6 (SD0P0–SD2N0) | Differential inputs for SD24_B ADC channels | Pins 1–4 used for two SD24_B converters; pins 5–6 are No Connect (NC) on MSP430F6726IPZ (vs. third SD24_B on F673x) |
| 11–13 (P1.0–P1.3) | General-purpose I/O with analog mux | Support VeREF±, A0–A2 inputs, TA0 capture/compare - critical for metrology signal conditioning and timing |
| 24–25 (XIN/XOUT) | 32-kHz crystal oscillator terminals | Drive external tuning-fork crystal for RTC; requires 12.5 pF load capacitance per TI spec |
| 32–35 (COM0–COM3) | LCD common outputs | Four COM lines for 8-mux LCD drive; enable segment multiplexing up to 320 segments |
| 95–100 (TEST–RST/NMI/SBWTDIO) | JTAG/SBW debug interface | Enable in-circuit programming and real-time debugging without external programmer; SBW uses 4-pin minimal interface |
Key Features
| Feature | Design Value |
|---|---|
| Password-protected RTC with crystal offset calibration | Enables ±0.5 ppm accuracy over temperature and aging - meets IEC 62053-21 Class 0.5 timing requirements |
| Dual 24-bit SD24_B ADCs with differential PGA inputs | Supports simultaneous voltage/current measurement with >100 dB SNR and programmable gain (1×–32×) for dynamic range optimization |
| Separate auxiliary supply domain (AUXVCC1–3) | Isolates RTC, backup RAM (4×16 bits), and 32-kHz oscillator from main power rail - ensures reliable timekeeping during mains failure |
| Enhanced UART with automatic baud-rate detection | Eliminates need for pre-negotiated communication speed in AMR systems - simplifies interoperability with legacy meter readers |
| Hardware CRC16 engine | Accelerates data integrity checks for firmware updates and meter register reads - reduces CPU overhead and improves security |
Applications
| 2-Wire Single-Phase Metering | 3-Wire Single-Phase Metering |
|---|---|
Use Scenario: Residential electricity meter measuring active energy via single CT and shunt-based current sensing. IC Role / Device Role / Timing Role: Primary metrology MCU performing synchronized sampling, RMS calculation, tariff switching, and LCD display update. Use Value: Dual SD24_B ADCs enable independent channel calibration and phase error compensation - achieving IEC 62053-21 Class 0.5 accuracy without external DSP. |
Use Scenario: Commercial single-phase meter with neutral current monitoring for tamper detection and unbalanced load analysis. IC Role / Device Role / Timing Role: Host controller managing three current channels (L1, L2/N, L3), real-time tariff logic, and secure data logging. Use Value: Three eUSCI_A modules support concurrent IrDA (handheld reader), UART (PLC modem), and SPI (secure EEPROM) - eliminating external bus arbitration. |
| Tamper-Resistant Meters | Smart Grid Endpoint Node |
Use Scenario: Utility-grade meter with magnetic, cover-open, and power-cycle tamper detection. IC Role / Device Role / Timing Role: Secure execution environment with password-protected RTC, backup RAM, and supply supervision triggering tamper flags. Use Value: LPM4.5 shutdown mode (0.78 µA) preserves tamper event timestamp and state across full power loss - meeting ANSI C12.1 and IEC 62053-31 requirements. |
Use Scenario: Edge node aggregating consumption data from multiple submeters and forwarding via RF or PLC. IC Role / Device Role / Timing Role: Data concentrator with DMA-accelerated ADC reads, hardware encryption assist, and low-latency UART/I²C bridging. Use Value: 3-channel DMA enables zero-CPU-overhead transfer of SD24_B results to RAM - sustaining 16 kHz sample rate while running AES-128 encryption on 8 KB RAM buffer. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power metrology microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F6736IPZ | Includes third 24-bit SD24_B ADC and 6 external ADC10_A channels (vs. 2 on MSP430F6726IPZ) | Required for 3-phase metering or dual-meter designs needing independent voltage/current paths | Select when third SD24_B channel is needed for neutral current or auxiliary sensor integration |
| MSP430F6725IPZ | Same peripheral set but reduced RAM (4 KB vs. 8 KB) and Flash (128 KB same) | Suitable for cost-sensitive meters with simplified firmware and smaller data buffers | Choose for entry-level meters where 4 KB RAM suffices for IEC 62053-22 Class 1 implementation |
Compared with MSP430F6736IPZ, the MSP430F6726IPZ omits the third SD24_B converter - reducing BOM cost and PCB area while retaining full 2-wire/3-wire single-phase functionality. Against MSP430F6725IPZ, it doubles RAM capacity to support advanced tariff schemes and larger secure log buffers without external memory.
Availability
MSP430F6726IPZ is available at Aetrix Electronics and suitable for utility metering, smart grid endpoint nodes, and tamper-resistant energy monitoring systems requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MSP430F6726IPZ 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 company specializing in analog, embedded processing, and connectivity technologies with over 50 years of innovation in low-power design.
The MSP430F6726IPZ belongs to TI's ultra-low-power mixed-signal MCU family, engineered specifically for precision metrology applications including revenue-grade electricity, gas, and water metering.
FAQ
What is the maximum operating frequency of the MSP430F6726IPZ?
The MSP430F6726IPZ supports a maximum system clock frequency of 25 MHz, enabled by its digitally controlled oscillator (DCO) with FLL stabilization. This allows real-time execution of metrology algorithms-including RMS, harmonic analysis, and tariff switching-at sub-millisecond latency while maintaining ultra-low active-mode current (265 µA/MHz at 8 MHz, 3.0 V).
Does the MSP430F6726IPZ support crystal-based real-time clock operation?
Yes, the MSP430F6726IPZ integrates a dedicated RTC_C module with crystal oscillator support via XIN/XOUT pins (pins 24–25). It operates with a standard 32.768-kHz tuning-fork crystal and includes automatic crystal offset calibration and temperature compensation - delivering ±0.5 ppm accuracy over –40°C to +85°C for IEC 62053-21 compliance.
How many analog-to-digital converters does the MSP430F6726IPZ integrate?
The MSP430F6726IPZ integrates three ADC subsystems: two independent 24-bit sigma-delta converters (SD24_B) optimized for high-precision current/voltage measurement, and one 10-bit successive-approximation ADC (ADC10_A) with 200-ksps sampling rate, internal reference, and temperature sensor input - enabling auxiliary diagnostics and fast transient capture.
What LCD capabilities does the MSP430F6726IPZ provide?
The MSP430F6726IPZ includes an integrated LCD_C controller supporting up to 320 segments in 8-mux configuration. It provides programmable contrast control, charge-pump voltage generation, and direct drive of common/segment lines - eliminating external LCD bias circuitry and reducing bill-of-materials for front-panel displays in utility meters.
Is the MSP430F6726IPZ pin-compatible with other devices in the MSP430F672x family?
Yes, all MSP430F672xIPZ variants (including MSP430F6726IPZ, MSP430F6725IPZ, and MSP430F6724IPZ) share identical 100-pin LQFP (PZ) packaging and pinout. Peripheral differences - such as RAM size, Flash capacity, and SD24_B count - are implemented internally and do not affect PCB layout or interconnect design.
MSP430F6726IPZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 100-LQFP
- Series:
- MSP430F6xx
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- MSP430 CPUXV2
- Core Size:
- 16-Bit
- Speed:
- 25MHz
- Connectivity:
- I2C, IrDA, LINbus, SCI, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, DMA, LCD, POR, PWM, WDT
- Number of I/O:
- 72
- Program Memory Size:
- 128KB (128K 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 8x10b, 2x24b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430F6726IPZ FAQ
1.How can I place an order for MSP430F6726IPZ through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F6726IPZ 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 MSP430F6726IPZ reliable?
The price and inventory of MSP430F6726IPZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F6726IPZ is usually 5 days.
3.What payment methods are accepted for MSP430F6726IPZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F6726IPZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F6726IPZ?
MSP430F6726IPZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F6726IPZ 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 MSP430F6726IPZ?
For technical support, including MSP430F6726IPZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F6726IPZ requirements.
6.How does Aetrix verify that MSP430F6726IPZ is sourced from the original manufacturer or authorized distributors?
All MSP430F6726IPZ 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 MSP430F6726IPZ meets industry standards.
7.What is the process for return or replacement of MSP430F6726IPZ?
All MSP430F6726IPZ units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F6726IPZ, 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 MSP430F6726IPZ part is unused and in its original packaging.
Return procedure for MSP430F6726IPZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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