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Texas Instruments MSP430F6736IPZR
- Part No.:
- MSP430F6736IPZR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
MSP430F6736IPZR.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:721
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Product details
Overview
MSP430F6736IPZR from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller designed for single-phase electronic watt-hour metering. It integrates three 24-bit sigma-delta ADCs, a 10-bit 200-ksps ADC, LCD driver (up to 320 segments), real-time clock with crystal offset calibration, and eUSCI modules supporting UART, IrDA, SPI, and I²C. It operates from 1.8 V to 3.6 V and supports tamper-resistant meter designs.
For engineers reviewing the MSP430F6736IPZR datasheet, MSP430F6736IPZR pinout, MSP430F6736IPZR application, or MSP430F6736IPZR equivalent, key selection criteria include its 128 KB Flash/8 KB RAM configuration, 100-pin LQFP package with 72 GPIOs, triple SD24_B ADC support for current/voltage sensing, RTC with temperature compensation, and integrated auxiliary supply system for backup subsystem operation.
Technical Context
The MSP430F6736IPZR 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 timing for metrology-grade timekeeping and sampling synchronization.
Power management features include a fully integrated LDO with programmable core voltage, supply supervision with brownout detection, and multiple low-power modes (LPM3.5 at 1.24 µA, LPM4.5 at 0.78 µA). The device uses separate analog/digital and auxiliary supplies (AUXVCC1–3) to isolate metrology signal paths and maintain RTC operation during main power loss.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 25-MHz max system clock and extended memory addressing |
| Flash / RAM | 128 KB Flash program memory and 8 KB RAM for firmware storage and real-time metering data buffers |
| ADC System | Three 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, 1.24 µA @ 3.0 V) and LPM4.5 (full shutdown, 0.78 µA @ 3.0 V) |
| Package | 100-pin LQFP (14 mm × 14 mm) with 72 GPIOs and dedicated metrology analog inputs (SD0P0/SD0N0, etc.) |
| Communication | Three eUSCI_A modules (UART/IrDA/SPI) and one eUSCI_B module (I²C/SPI) for HAN, PLC, or optical interface connectivity |
| LCD Driver | Integrated LCD_C controller supporting up to 320 segments in 8-mux mode with programmable contrast control |
Pinout & Package
Package: 100-pin LQFP (PZ), 14 mm × 14 mm body size, surface-mount, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SD0P0 / SD0N0 | Differential input pair for SD24_B channel 0 | Direct connection to current shunt or CT secondary for high-accuracy energy measurement |
| SD1P0 / SD1N0 | Differential input pair for SD24_B channel 1 | Supports simultaneous voltage and current sampling on separate phases or lines |
| SD2P0 / SD2N0 | Differential input pair for SD24_B channel 2 | Enables third-channel sensing for neutral current or auxiliary monitoring in tamper detection |
| AUXVCC1–AUXVCC3 | Auxiliary supply rails | Provide isolated power to RTC, backup RAM, and 32-kHz oscillator - maintain timekeeping during main power failure |
| RST/NMI/SBWTDIO | Reset, non-maskable interrupt, and Spy-Bi-Wire debug I/O | Single-pin JTAG/SBW interface enables in-system programming and debugging without external header |
Key Features
| Feature | Design Value |
|---|---|
| Password-protected RTC with crystal offset calibration | Enables ±1 ppm accuracy over temperature and aging - critical for billing-grade time stamping in meters |
| Triple 24-bit SD24_B ADCs with PGA inputs | Supports simultaneous 3-channel metrology with >100 dB SNR and programmable gain for direct shunt/CT interfacing |
| Integrated LCD driver with contrast control | Drives up to 320-segment displays without external bias circuitry - reduces BOM count and layout complexity |
| Hardware multiplier (MPY32) | Accelerates real-time watt-hour calculations (e.g., RMS, active/reactive power) in firmware without CPU overhead |
| 3-channel DMA with peripheral mapping | Enables autonomous ADC-to-memory transfers and LCD refresh - frees CPU for communication or security tasks |
Applications
| 2-Wire Single-Phase Metering | 3-Wire Single-Phase Metering |
|---|---|
Use Scenario: Residential electricity meter measuring line-to-neutral consumption using two current sensors and one voltage channel. IC Role / Device Role / Timing Role: Primary metrology MCU performing synchronized sampling, energy accumulation, and display update via integrated LCD_C. Use Value: Triple SD24_B ADCs enable concurrent current/voltage acquisition with <10 ppm gain error - meeting IEC 62053-21 Class 0.5 accuracy requirements. | Use Scenario: Commercial single-phase meter with neutral current monitoring for tamper detection and load profiling. IC Role / Device Role / Timing Role: Metrology controller executing real-time neutral current analysis, RTC-stamped event logging, and secure data transmission. Use Value: Third SD24_B channel (SD2P0/SD2N0) provides dedicated neutral path sensing - enabling differential current analysis to detect bypass or short-circuit tampering. |
| Tamper-Resistant Meters | Smart Grid Endpoint Node |
Use Scenario: Utility-grade meter detecting magnetic, cover-removal, and power-cycle tampering events. IC Role / Device Role / Timing Role: Security-aware MCU managing tamper inputs, encrypted event logs, and battery-backed RTC timestamping of violations. Use Value: Auxiliary supply system (AUXVCC1–3) maintains RTC and 4×16-bit backup RAM during main power interruption - preserving tamper evidence integrity. | Use Scenario: AMI endpoint integrating metrology, local display, and PLC/HAN communication for remote reading. IC Role / Device Role / Timing Role: Central processing unit coordinating SD24_B sampling, LCD refresh, and eUSCI_A/B data exchange with concentrator or gateway. Use Value: Three eUSCI_A modules support simultaneous UART (optical port), IrDA (handheld reader), and SPI (PLC modem) - eliminating need for external protocol bridges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar metrology microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F6735IPZR | Same 100-pin LQFP package but with 4 KB RAM (vs. 8 KB) and no SD2P0/SD2N0 pins - SD24_B channel 2 not implemented | Suitable for cost-sensitive 2-channel metering where neutral monitoring is unnecessary | Select when full 3-channel SD24_B capability and larger RAM buffer are not required |
| MSP430F6726IPZR | Same package and pinout but only two SD24_B converters (no SD2P0/SD2N0), 128 KB Flash/8 KB RAM, and reduced I/O mapping flexibility | Targeted at simpler metering functions without advanced tamper analytics or multi-channel harmonics analysis | Choose for legacy design migration where SD24_B channel count and peripheral feature set can be reduced |
Compared with MSP430F6735IPZR and MSP430F6726IPZR, the MSP430F6736IPZR uniquely delivers full 3-channel 24-bit metrology ADC support, 8 KB RAM for extended waveform capture, and complete pin compatibility with auxiliary supply and RTC backup functionality - making it the highest-spec option in the F673x PZ family for premium single-phase meters.
Availability
MSP430F6736IPZR is available at Aetrix Electronics and suitable for single-phase energy metering, smart grid endpoint nodes, and tamper-resistant utility meter designs requiring stable component supply, long-term lifecycle support, and metrology-grade accuracy certification.
Supply support for MSP430F6736IPZR 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 and embedded processing technologies, with leadership in low-power microcontrollers and precision analog signal chains.
The MSP430F6736IPZR belongs to TI's MSP430F673x ultra-low-power metrology MCU product line, engineered specifically for ANSI C12.20 and IEC 62053-compliant electricity meters requiring high-accuracy sampling, secure timekeeping, and integrated display drivers.
FAQ
What is the maximum system clock frequency supported by the MSP430F6736IPZR?
The MSP430F6736IPZR supports a maximum system clock frequency of 25 MHz, enabled by its digitally controlled oscillator (DCO) and FLL-based clock system. This allows high-speed execution of metrology algorithms while maintaining ultra-low active-mode power consumption of 265 µA/MHz at 8 MHz and 3.0 V during Flash program execution.
Does the MSP430F6736IPZR include hardware support for energy calculation functions?
Yes, the MSP430F6736IPZR includes a 32-bit hardware multiplier (MPY32) that accelerates fixed-point arithmetic for active/reactive power, RMS, and watt-hour accumulation. Combined with its three SD24_B ADCs and DMA engine, it enables real-time, cycle-accurate energy computation without CPU intervention - essential for Class 0.2 metering compliance.
How does the MSP430F6736IPZR handle power loss during RTC operation?
The MSP430F6736IPZR uses a dedicated auxiliary supply system with AUXVCC1, AUXVCC2, and AUXVCC3 pins to power the RTC, 32-kHz oscillator, and 4×16-bit backup RAM independently. When main DVCC drops, the RTC continues running with crystal-based accuracy, and tamper/event timestamps remain preserved - ensuring billing continuity and forensic integrity.
What LCD segment count and multiplexing does the MSP430F6736IPZR support?
The MSP430F6736IPZR integrates the LCD_C controller supporting up to 320 segments in 8-mux mode, with programmable contrast control and internal charge pump. This eliminates external bias components and enables direct drive of standard 4-digit, 7-segment + icon displays common in utility meters - reducing bill-of-materials and PCB area.
Is the MSP430F6736IPZR pin-compatible with other devices in the F673x family?
Yes, the MSP430F6736IPZR in the 100-pin LQFP (PZ) package shares identical pinout and electrical characteristics with MSP430F6735IPZR, MSP430F6734IPZR, and other F673xIPZ variants. All share the same SD0P0/SD0N0, SD1P0/SD1N0, AUXVCCx, and RTC-related pin assignments - enabling hardware reuse across performance tiers.
MSP430F6736IPZR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 100-LQFP
- Series:
- MSP430F6xx
- Packaging:
- Tape & Reel (TR)
- 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, 3x24b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430F6736IPZR FAQ
1.How can I place an order for MSP430F6736IPZR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F6736IPZR 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 MSP430F6736IPZR reliable?
The price and inventory of MSP430F6736IPZR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F6736IPZR is usually 5 days.
3.What payment methods are accepted for MSP430F6736IPZR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F6736IPZR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F6736IPZR?
MSP430F6736IPZR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F6736IPZR 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 MSP430F6736IPZR?
For technical support, including MSP430F6736IPZR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F6736IPZR requirements.
6.How does Aetrix verify that MSP430F6736IPZR is sourced from the original manufacturer or authorized distributors?
All MSP430F6736IPZR 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 MSP430F6736IPZR meets industry standards.
7.What is the process for return or replacement of MSP430F6736IPZR?
All MSP430F6736IPZR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F6736IPZR, 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 MSP430F6736IPZR part is unused and in its original packaging.
Return procedure for MSP430F6736IPZR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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