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Texas Instruments MSP430F46171IPZ
- Part No.:
- MSP430F46171IPZ
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
MSP430F46171IPZ.pdf
- Description:
- IC MCU 16BIT 92KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,364
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Product details
Overview
MSP430F46171IPZ 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, 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 MSP430F46171IPZ datasheet, MSP430F46171IPZ pinout, MSP430F46171IPZ application, or MSP430F46171IPZ equivalent, key selection considerations include its 100-pin TQFP package, absence of ADC12 module (distinguishing it from MSP430F4617), LCD charge pump capability, real-time clock support via Basic Timer, and JTAG/EEM debugging interface compatibility.
Technical Context
The MSP430F46171IPZ implements the MSP430x461x1 family architecture with CPUX core, 16-bit RISC instruction set, constant generators, and five low-power modes optimized for battery longevity. Its clock system includes FLL+, XT1 (32.768 kHz watch crystal), XT2 (up to 8 MHz standard crystal), DCO, and programmable dividers for MCLK, SMCLK, and ACLK.
Peripheral integration centers on mixed-signal operation: USCI_A0 supports UART with auto-baudrate detection and IrDA encoding/decoding; USCI_B0 provides hardware I²C master/slave and SPI; USART1 adds legacy UART/SPI flexibility; LCD_A module drives 4-mux static-to-1/4-duty LCDs with regulated charge pump; and SVS/SVM enables programmable brownout detection on AVCC/DVCC.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPUX with 16 registers, 125-ns instruction cycle at 8 MHz |
| Memory | 92KB+256B flash/ROM + 8KB RAM - sufficient for complex metering firmware with LCD UI and communication stacks |
| Supply Voltage | 1.8 V to 3.6 V - compatible with single-cell Li-ion or dual-cell alkaline systems |
| Active Current | 400 µA at 1 MHz, 2.2 V - enables >1-year battery life in intermittent-scan medical sensors |
| Standby Current | 1.3 µA - supports RTC wake-up every 1–60 seconds without compromising runtime |
| LCD Drive | Up to 160 segments with 1/4-bias, integrated charge pump - eliminates external bias generator in portable displays |
| Wake-up Time | <6 µs from standby - meets fast-response requirements in energy-monitoring interrupt events |
Pinout & Package
Package: 100-pin TQFP (PZ), 14 mm × 14 mm, 0.5 mm pitch, thermally enhanced with exposed thermal pad (per TI SLAS675).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST/NMI | Reset / Nonmaskable Interrupt input | Active-low reset initiation; NMI edge-triggered interrupt for critical fault handling |
| P1.0/TA0 | Timer_A0 capture/compare / BSL transmit | Primary UART TX for bootloader communication; supports PWM output or event capture |
| P1.1/TA0/MCLK | Timer_A0 capture / MCLK output | Provides system master clock output for external synchronization or debug clock monitoring |
| P2.7/DMAE0 | DMA Channel 0 trigger / ADC12CLK | Enables hardware-triggered DMA transfers synchronized to ADC conversion completion |
| P7.0–P7.3, P4.2–P4.7, P5.2–P5.4, COM0–COM3 | LCD segment/backplane drivers | Direct drive of 160-segment LCD with 4-backplane configuration; supports static to 1/4-duty cycles |
| USCI_A0 pins (UCA0TXD/UCA0RXD/UCA0CLK/UCA0STE) | Universal Serial Communication Interface A0 | Configurable as full-duplex UART (IrDA-ready) or 4-wire SPI master/slave with automatic slave select |
Key Features
| Feature | Design Value |
|---|---|
| Integrated LCD charge pump | Generates regulated VLCD from DVCC, eliminating need for external DC-DC converter in battery-powered meters |
| USCI_A0 with IrDA encoder/decoder | Hardware-level IrDA physical layer compliance (SIR 9.6–115.2 kbps) reduces MCU overhead in medical data transfer |
| Real-time clock via Basic Timer | Calendar mode with alarm interrupt using 32.768 kHz XT1 crystal - enables time-stamped logging without external RTC IC |
| Three-channel hardware DMA | Offloads CPU during LCD refresh, UART receive buffering, and timer-based data acquisition - preserves low-power mode residency |
| Supply voltage supervisor (SVS) | Programmable trip level (1.7–2.7 V in 0.1-V steps) with SVSOUT signal - ensures deterministic reset before analog peripherals fail |
Applications
| Portable Medical Glucometers | Smart Electricity Meters |
|---|---|
Use Scenario: Handheld blood glucose monitor with LCD display, button interface, and IR data upload to clinic systems. IC Role / Device Role / Timing Role: Main controller managing sensor excitation, 16-bit ADC sampling (via external ADC), LCD refresh, IrDA transmission, and real-time timestamping. Use Value: Ultralow standby current (1.3 µA) extends CR2032 battery life beyond 2 years; integrated IrDA PHY avoids adding transceiver IC and saves PCB area. | Use Scenario: DIN-rail mounted kWh meter with segmented LCD, tamper detection, and optical port for utility readout. IC Role / Device Role / Timing Role: System-on-chip host executing metrology firmware, driving 128-segment LCD, polling tamper switches, and servicing optical UART interface. Use Value: LCD charge pump enables single-supply operation from 3.3 V rail; SVS with programmable threshold prevents erratic behavior during brownout conditions common in grid-edge environments. |
| Industrial Panel Meters | Low-Power Environmental Sensors |
Use Scenario: DIN-mounted analog-input panel meter displaying voltage/current/temperature with local LCD and RS-485 Modbus interface. IC Role / Device Role / Timing Role: Primary MCU handling analog front-end control (via external ADC), LCD rendering, and USART1-driven RS-485 half-duplex communication. Use Value: Dual serial interfaces (USCI_A0 + USART1) allow simultaneous IrDA diagnostics and fieldbus communication without software UART compromises. | Use Scenario: Battery-powered soil moisture and temperature node transmitting readings hourly via LoRaWAN gateway using UART bridge. IC Role / Device Role / Timing Role: Sleep-optimized controller waking on RTC alarm, reading sensors via GPIO/analog inputs, formatting payload, and driving UART to external modem. Use Value: <6 µs wake-up time minimizes active-mode duration; 8KB RAM accommodates sensor fusion algorithms and packet buffers without external memory. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F4617IPZ | Includes ADC12 module (12-bit, 12-channel); identical memory, package, and peripheral set otherwise | Required where on-chip high-resolution analog acquisition is needed (e.g., direct sensor interfacing without external ADC) | Select MSP430F4617IPZ only if ADC12 functionality is mandatory; MSP430F46171IPZ reduces cost and power when external ADC or comparator-based sensing suffices |
| MSP430F5438AIPZ | Higher performance (25 MHz MCLK), 256 KB flash, USB interface, no integrated LCD driver, different pinout | Suitable for USB-connected industrial HMI or data loggers where LCD is replaced by graphical display or remote interface | Choose MSP430F5438AIPZ for USB host/device capability and larger code space; avoid if LCD integration and sub-µA standby are primary requirements |
Compared with MSP430F4617IPZ, the MSP430F46171IPZ removes ADC12 but retains identical LCD, timing, communication, and power features-making it optimal for display-centric, externally sensed applications. Against MSP430F5438AIPZ, it trades USB and speed for guaranteed sub-µA RTC operation and native LCD bias generation.
Availability
MSP430F46171IPZ is available at Aetrix Electronics and suitable for portable medical devices, smart electricity meters, and industrial panel meters requiring stable component supply, long-term lifecycle assurance, and qualified automotive-grade temperature range (−40°C to 85°C).
Supply support for MSP430F46171IPZ 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, embedded processing, and connectivity solutions with emphasis on power efficiency, reliability, and system integration.
The MSP430x461x1 product line was designed specifically for ultralow-power, LCD-equipped metering and portable measurement applications-prioritizing RTC accuracy, segment drive capability, and multi-interface flexibility within strict current budgets.
FAQ
What is the key functional difference between MSP430F46171IPZ and MSP430F4617IPZ?
The MSP430F46171IPZ omits the ADC12 module present in the MSP430F4617IPZ. All other peripherals-including 92KB+256B flash/ROM, 8KB RAM, LCD_A driver, USCI_A0/B0, USART1, Timer_A3/Timer_B7, DMA, and SVS-are functionally identical. This makes MSP430F46171IPZ ideal for applications using external ADCs or comparator-based sensing, reducing cost and dynamic power consumption.
Does MSP430F46171IPZ support real-time clock functionality?
Yes, MSP430F46171IPZ supports real-time clock functionality through its integrated Basic Timer module, which can operate in calendar mode using a 32.768 kHz crystal connected to XIN/XOUT. The module provides time-of-day tracking, alarm interrupts, and periodic wake-up events while consuming only 1.3 µA in standby mode.
Can MSP430F46171IPZ drive a 160-segment LCD without external components?
Yes, MSP430F46171IPZ integrates a regulated LCD charge pump (LCDCPEN) capable of generating VLCD from DVCC. When enabled, it supports up to 160 segments with 4 backplanes (COM0–COM3) and eliminates the need for external voltage boosters or bias resistors-reducing BOM count and board space in portable meter designs.
What debug interfaces are supported by MSP430F46171IPZ?
MSP430F46171IPZ supports JTAG via dedicated TCK/TMS/TDI/TDO pins and includes an Embedded Emulation Module (EEM) for full-speed debugging, flash programming, and real-time trace. It is compatible with TI's MSP-FET430UIF debugger and MSP-TS430PZ100 target board for rapid development and validation.
Is MSP430F46171IPZ qualified for industrial temperature range?
Yes, MSP430F46171IPZ is specified for operation from −40°C to +85°C, meeting industrial temperature requirements. This rating is confirmed in the "AVAILABLE OPTIONS" table of the SLAS675 datasheet, where MSP430F46171IPZ is explicitly listed with TA = −40°C to 85°C under the plastic 100-pin TQFP (PZ) package.
MSP430F46171IPZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 100-LQFP
- Series:
- MSP430x4xx
- Packaging:
- Bulk
- 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:
MSP430F46171IPZ FAQ
1.How can I place an order for MSP430F46171IPZ through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F46171IPZ 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 MSP430F46171IPZ reliable?
The price and inventory of MSP430F46171IPZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F46171IPZ is usually 5 days.
3.What payment methods are accepted for MSP430F46171IPZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F46171IPZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F46171IPZ?
MSP430F46171IPZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F46171IPZ 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 MSP430F46171IPZ?
For technical support, including MSP430F46171IPZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F46171IPZ requirements.
6.How does Aetrix verify that MSP430F46171IPZ is sourced from the original manufacturer or authorized distributors?
All MSP430F46171IPZ 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 MSP430F46171IPZ meets industry standards.
7.What is the process for return or replacement of MSP430F46171IPZ?
All MSP430F46171IPZ units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F46171IPZ, 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 MSP430F46171IPZ part is unused and in its original packaging.
Return procedure for MSP430F46171IPZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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