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Texas Instruments MSP430F46171IPZR
- Part No.:
- MSP430F46171IPZR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
MSP430F46171IPZR.pdf
- Description:
- IC MCU 16BIT 92KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,314
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Product details
Overview
MSP430F46171IPZR from Texas Instruments is an ultralow-power 16-bit mixed-signal microcontroller featuring 92KB+256B flash/ROM, 8KB RAM, integrated LCD driver for up to 160 segments, dual 16-bit timers (Timer_A3 and Timer_B7), USCI_A0 (UART/IrDA/SPI), USCI_B0 (SPI/I²C), USART1 (UART/SPI), DMA controller with three channels, comparator, and supply voltage supervisor. It operates from 1.8 V to 3.6 V and targets portable medical devices and electronic metering.
For engineers reviewing the MSP430F46171IPZR datasheet, MSP430F46171IPZR pinout, MSP430F46171IPZR application, or MSP430F46171IPZR equivalent, key selection criteria include LCD segment count support, RAM size, absence of ADC12 module, TQFP-100 package compatibility, and low-power mode wake-up timing under 6 µs.
Technical Context
The MSP430F46171IPZR implements the MSP430x461x1 family architecture, which omits the ADC12 module present in the MSP430x461x variants while retaining all other peripherals: dual 16-bit timers with capture/compare registers, hardware multiplier, real-time clock-capable basic timer, and full USCI/USART communication stack. Its CPUX core executes instructions in a single cycle at up to 8 MHz via FLL+ frequency synthesis.
Power management is handled by five configurable low-power modes (LPM0–LPM4), with standby current at 1.3 µA and off-mode RAM retention at 0.22 µA. The device uses separate analog (AVCC/AVSS) and digital (DVCC/DVSS) supply domains, with strict power-up sequencing requirements (AVCC must not rise before DVCC).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPUX with 16 general-purpose registers and constant generators; enables highly efficient C code execution and deterministic real-time response. |
| Memory | 92KB+256B flash or ROM + 8KB RAM; supports large embedded applications with data logging and firmware updates without external memory. |
| Operating Voltage | 1.8 V to 3.6 V; compatible with single-cell Li-ion, Li-polymer, or dual alkaline battery systems without regulation overhead. |
| Low-Power Performance | Active mode: 400 µA at 1 MHz/2.2 V; Standby: 1.3 µA; Off mode (RAM retention): 0.22 µA - extends battery life in intermittent-sensing applications. |
| LCD Driver | Integrated LCD_A module supporting up to 160 segments with 1/2–1/4 bias and regulated charge pump; eliminates external LCD bias circuitry. |
| Communication Peripherals | USCI_A0 (UART/IrDA/SPI), USCI_B0 (SPI/I²C), USART1 (UART/SPI); provides flexible wired and infrared connectivity for metering UI and sensor interfaces. |
| Wake-Up Time | <6 µs from standby to active mode; enables rapid response to external events while maintaining ultralow average power consumption. |
Pinout & Package
Package: 100-pin TQFP (PZ), 14 mm × 14 mm, 0.5 mm pitch, RoHS-compliant. Thermal pad exposed on underside for enhanced heat dissipation in high-duty-cycle operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST/NMI | Reset / Nonmaskable Interrupt input | Hardware reset initiation and critical fault handling; supports BSL entry when held during power-up. |
| P1.0/TA0 | Timer_A0 capture/compare I/O | Dedicated PWM output or event capture for motor control or pulse-width measurement. |
| P2.7/DMAE0 | DMA Channel 0 trigger input | Enables autonomous data transfer triggered by peripheral events (e.g., UART RX complete), reducing CPU load. |
| P7.0/UCA0STE/S33 | USCI_A0 slave transmit enable / LCD segment 33 | Configurable for SPI slave mode control or direct LCD segment drive - multiplexed resource requiring software coordination. |
| COM0–COM3 | LCD backplane outputs | Four common outputs supporting static, 2-mux, 3-mux, or 4-mux LCD configurations up to 160 segments (4 × 40). |
| TCK/TMS/TDI/TDO | JTAG debug interface | Fully compliant IEEE 1149.1 boundary-scan interface for programming, emulation, and production test. |
Key Features
| Feature | Design Value |
|---|---|
| Ultralow-power operation across five LPMs | Enables multi-year battery life in sealed portable medical monitors and utility meters with infrequent wake-ups. |
| Integrated LCD driver with regulated charge pump | Drives up to 160 segments without external voltage boosters or bias resistors - reduces BOM count and PCB area. |
| Dual 16-bit timers with shadow registers (Timer_B7) | Supports precise PWM generation, input capture, and time-stamped event logging with minimal CPU intervention. |
| Three-channel hardware DMA controller | Permits high-throughput data movement between peripherals (e.g., UART → RAM) without CPU cycles, improving system efficiency. |
| Separate analog/digital supply domains | Minimizes noise coupling between sensitive analog circuits (comparator, SVS) and noisy digital switching, enhancing measurement stability. |
Applications
| Portable Medical Monitoring | Smart Electricity Metering |
|---|---|
Use Scenario: Battery-powered blood glucose monitor with segmented LCD display and serial communication to mobile app. IC Role / Device Role / Timing Role: Main system controller managing sensor interface, LCD refresh, IrDA transmission, and ultra-low-power sleep scheduling. Use Value: 0.22 µA off-mode current preserves battery for >2 years; integrated LCD driver eliminates 6+ external components. | Use Scenario: DIN-rail mounted kWh meter with tamper detection, real-time clock, and optical port for utility data upload. IC Role / Device Role / Timing Role: Primary MCU executing metrology firmware, RTC-based billing intervals, and secure optical UART communication. Use Value: Dual timers provide independent timebases for RTC and pulse counting; USCI_B0 I²C interfaces with metrology ADC. |
| Industrial Handheld Terminals | Water/Gas Utility Meters |
Use Scenario: Rugged field service terminal with LCD UI, button interface, and RS-232/USB bridge via USART1. IC Role / Device Role / Timing Role: Host processor handling human interface, serial protocol translation, and low-power idle state management. Use Value: 8KB RAM accommodates GUI frame buffers and protocol stacks; <6 µs wake-up ensures responsive keypad polling. | Use Scenario: Battery-operated ultrasonic flow meter with LCD readout, temperature compensation, and HART-compatible 4–20 mA loop interface. IC Role / Device Role / Timing Role: System-on-chip managing transducer excitation timing, signal processing triggers, and LCD update synchronization. Use Value: Comparator_A and SVS monitor supply integrity during battery voltage sag; LCD_A drives 128-segment display directly. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F4617IPZR | Includes ADC12 module (12-bit, 12-channel); otherwise identical memory, timers, and peripherals. | Required where analog sensor acquisition (e.g., thermistor, pressure transducer) is integral to the design. | Select MSP430F4617IPZR only if on-chip ADC functionality is needed; MSP430F46171IPZR offers lower cost and reduced power when ADC is unnecessary. |
| MSP430F5438AIPZR | Higher-performance CPU (25 MHz), 256KB flash, 16KB RAM, USB support, but no integrated LCD driver. | Suitable for feature-rich UIs requiring graphics acceleration or host connectivity, but requires external LCD controller. | Choose MSP430F5438AIPZR for USB-enabled applications or larger firmware footprints; MSP430F46171IPZR remains optimal for LCD-centric, battery-constrained designs. |
Compared with MSP430F4617IPZR, the MSP430F46171IPZR removes ADC12 to reduce cost and dynamic power, while matching all other peripherals and memory. Against MSP430F5438AIPZR, it trades raw performance and USB for integrated LCD support and lower active/standby current - making it superior for display-driven, long-life metering applications.
Availability
MSP430F46171IPZR is available at Aetrix Electronics and suitable for portable medical monitoring, smart electricity metering, and industrial handheld terminals requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for MSP430F46171IPZR 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 decades of expertise in ultralow-power microcontrollers.
The MSP430x461x1 product line was designed specifically for battery-powered, display-intensive applications such as utility meters and portable diagnostics - prioritizing LCD integration, sub-µA standby, and robust mixed-signal peripheral sets.
FAQ
What distinguishes MSP430F46171IPZR from MSP430F4617IPZR?
The MSP430F46171IPZR is functionally identical to the MSP430F4617IPZR except that the ADC12 module is omitted. All other features - including 92KB+256B flash/ROM, 8KB RAM, LCD_A driver, USCI peripherals, timers, and power modes - are fully retained. This makes MSP430F46171IPZR ideal for applications where analog-to-digital conversion is handled externally or not required.
Does MSP430F46171IPZR support real-time clock functionality?
Yes, the MSP430F46171IPZR includes a Basic Timer module with real-time clock capability. It can generate calendar-based interrupts using a 32.768 kHz crystal connected to XIN/XOUT, enabling time-of-day tracking, alarm scheduling, and periodic wake-up events without external RTC hardware.
What LCD configurations does the MSP430F46171IPZR support?
The MSP430F46171IPZR's LCD_A module supports static, 2-mux, 3-mux, and 4-mux LCDs with up to 160 segments. It provides four COM outputs (COM0–COM3) and supports internal charge pump regulation for VLCD generation, eliminating need for external bias supplies in most implementations.
Can MSP430F46171IPZR operate from a single 3.0 V coin cell?
Yes, the MSP430F46171IPZR operates across 1.8 V to 3.6 V, making it compatible with standard CR2032 (3.0 V nominal) and BR2032 (2.8 V nominal) coin cells. Its 0.22 µA off-mode current enables multi-year operation even with small capacity cells when paired with efficient power management.
Is JTAG debugging supported on MSP430F46171IPZR?
Yes, the MSP430F46171IPZR includes full IEEE 1149.1 JTAG support via pins TCK, TMS, TDI, and TDO (pins 93, 92, 91, and 90). This enables in-circuit debugging, flash programming, and boundary-scan testing using standard tools like MSP-FET430UIF or compatible emulators.
MSP430F46171IPZR 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 CPUX
- Core Size:
- 16-Bit
- Speed:
- 8MHz
- Connectivity:
- I2C, IrDA, SCI, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, DMA, LCD, POR, PWM, WDT
- Number of I/O:
- 80
- Program Memory Size:
- 92KB (92K x 8 + 256B)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 8K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- -
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430F46171IPZR FAQ
1.How can I place an order for MSP430F46171IPZR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F46171IPZR 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 MSP430F46171IPZR reliable?
The price and inventory of MSP430F46171IPZR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F46171IPZR is usually 5 days.
3.What payment methods are accepted for MSP430F46171IPZR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F46171IPZR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F46171IPZR?
MSP430F46171IPZR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F46171IPZR 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 MSP430F46171IPZR?
For technical support, including MSP430F46171IPZR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F46171IPZR requirements.
6.How does Aetrix verify that MSP430F46171IPZR is sourced from the original manufacturer or authorized distributors?
All MSP430F46171IPZR 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 MSP430F46171IPZR meets industry standards.
7.What is the process for return or replacement of MSP430F46171IPZR?
All MSP430F46171IPZR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F46171IPZR, 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 MSP430F46171IPZR part is unused and in its original packaging.
Return procedure for MSP430F46171IPZR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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