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Texas Instruments MSP430F4371IPNR
- Part No.:
- MSP430F4371IPNR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
MSP430F4371IPNR.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,534
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Product details
Overview
MSP430F4371IPNR from Texas Instruments is an ultralow-power 16-bit mixed-signal microcontroller featuring 32KB+256B flash memory, 1KB RAM, integrated LCD driver for up to 160 segments, two 16-bit timers (Timer_A3 and Timer_B3), and serial communication via USART0. It operates from 1.8 V to 3.6 V and targets battery-powered portable measurement systems with display capability.
For engineers reviewing the MSP430F4371IPNR datasheet, MSP430F4371IPNR pinout, MSP430F4371IPNR application, or MSP430F4371IPNR equivalent, key selection criteria include LCD segment drive count, absence of ADC12 module, QFP-80 package compatibility, standby current under 1.1 µA, and JTAG-based debugging support.
Technical Context
The MSP430F4371IPNR implements a 16-bit RISC CPU with constant generators and a digitally controlled oscillator (DCO), enabling wake-up from standby mode in less than 6 µs. Its architecture supports five power-saving modes optimized for extended battery life in sensor readout and display-driven applications.
It integrates a 16-bit Timer_A with three capture/compare registers and a 16-bit Timer_B with three capture/compare registers and shadow registers. The device includes one USART (USART0) configurable as UART or SPI, on-chip comparator, brownout detector, supply voltage supervisor, and bootstrap loader - but excludes the ADC12 module per family documentation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 125-ns instruction cycle time and hardware multiplier support |
| Memory | 32KB+256B flash program memory and 1KB RAM for firmware storage and runtime variables |
| Supply Voltage | 1.8 V to 3.6 V operation enables direct use with single Li-ion or dual alkaline cells |
| Active Current | 280 µA at 1 MHz and 2.2 V - defines baseline power budget for continuous sensing/display tasks |
| Standby Current | 1.1 µA - determines minimum system sleep power for multi-year battery life in metering |
| LCD Driver | Supports up to 160 segments with 1–4 multiplexing, eliminating external display controller IC |
| Timers | Timer_A3 (3 CC regs) and Timer_B3 (3 CC regs + shadow) enable precise PWM, capture, and real-time control |
Pinout & Package
Package: 80-pin plastic quad flat pack (QFP), PN suffix, RoHS-compliant, surface-mount compatible with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DVCC1 / DVCC2 | Digital supply voltage inputs | Separate digital power domains for core and I/O sections reduce noise coupling to analog peripherals |
| AVCC / AVSS | Analog supply terminals | Isolated analog rail powers comparator and LCD resistive divider; must power up after DVCC |
| P1.0–P1.7, P2.0–P2.7, etc. | General-purpose I/O ports | 48 total GPIO pins with interrupt capability, supporting LCD segment outputs (S0–S39), COM0–COM3, and peripheral functions |
| XT2IN / XT2OUT | High-frequency crystal oscillator interface | Supports optional 4–16 MHz crystal for precise timing or high-speed UART baud rates |
| RST/NMI | Reset and non-maskable interrupt input | Single pin serves dual role: hardware reset initiation and critical fault handling |
| TCK / TMS / TDI / TDO | JTAG debug interface signals | Enables full-featured emulation, flash programming, and real-time debugging without bootloader dependency |
Key Features
| Feature | Design Value |
|---|---|
| Ultralow-power operation | 0.1 µA off-mode (RAM retention) extends shelf life and enables instant-on functionality |
| Integrated LCD driver | Drives up to 160 segments with internal bias generation - eliminates external LCD bias IC and reduces BOM cost |
| No external programming voltage | On-chip serial bootloader allows field firmware updates via UART without dedicated programmer hardware |
| Programmable code protection | Security fuse prevents unauthorized flash readout - protects proprietary algorithms and calibration data |
| Supply voltage supervisor | Configurable threshold detection prevents erratic operation during brownout or battery depletion |
Applications
| Portable Energy Meter | Industrial Panel Display |
|---|---|
Use Scenario: Battery-powered electricity meter with real-time kWh calculation and segmented LCD display showing consumption, tariff, and status. IC Role / Device Role / Timing Role: Main system controller executing metrology firmware, managing LCD refresh, and handling UART communication with utility modules. Use Value: 1.1 µA standby current enables >10-year battery life; integrated LCD driver reduces component count by 3–4 ICs. | Use Scenario: Local HMI on factory floor equipment displaying process parameters, alarms, and operator prompts using monochrome LCD. IC Role / Device Role / Timing Role: Standalone display controller with local sensor interface and button input handling - no host MCU required. Use Value: 160-segment LCD support matches common industrial display layouts; Timer_B3 shadow registers ensure glitch-free PWM backlight control. |
| Handheld Test Instrument | Smart Thermostat Display |
Use Scenario: Portable multimeter or insulation tester with analog front-end, keypad, and LCD showing measured values and unit symbols. IC Role / Device Role / Timing Role: Mixed-signal processor capturing analog inputs via comparator, digitizing via external ADC, and rendering UI on LCD. Use Value: 48 GPIO pins accommodate keypad matrix and LCD segment lines; wake-up in <6 µs ensures responsive button press detection. | Use Scenario: Residential thermostat with ambient temperature sensing, HVAC control logic, and 4-digit segmented LCD showing setpoint and current room temp. IC Role / Device Role / Timing Role: Primary controller managing sensor polling, PID computation, relay actuation, and LCD update cycles. Use Value: Integrated SVS prevents firmware corruption during battery swap; low active current extends AA battery life to 2+ years. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F437IPN | Includes ADC12 module (12-bit, 8-channel); otherwise identical flash/RAM, timers, and LCD capability | Required when analog signal acquisition (e.g., thermistor, pressure sensor) is performed on-chip without external ADC | Select MSP430F437IPN if ADC functionality is needed; MSP430F4371IPNR is preferred when ADC is omitted to reduce cost and simplify layout |
| MSP430F4351IPN | 16KB+256B flash, 512B RAM, same peripheral set excluding ADC12; otherwise pin-compatible and functionally identical | Suitable for simpler UIs or smaller firmware footprints where 32KB flash is unnecessary | Choose MSP430F4351IPN for cost-sensitive designs with <16KB code size; retains all LCD, timer, and communication features |
Compared with MSP430F437IPN, the MSP430F4371IPNR removes ADC12 to lower unit cost and eliminate associated analog routing complexity, while retaining full LCD, timer, and communication capability. Against MSP430F4351IPN, it doubles flash and RAM for larger applications without changing footprint or power profile.
Availability
MSP430F4371IPNR is available at Aetrix Electronics and suitable for portable energy meters, industrial panel displays, and handheld test instruments requiring stable component supply and long-term manufacturability.
Supply support for MSP430F4371IPNR 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 solutions for industrial, automotive, and consumer markets.
The MSP430x43x1 product line delivers ultralow-power mixed-signal MCUs optimized for battery-operated display-centric applications such as utility meters, portable instrumentation, and smart thermostats.
FAQ
What is the maximum LCD segment count supported by the MSP430F4371IPNR?
The MSP430F4371IPNR supports up to 160 LCD segments using its integrated driver with 1–4 multiplexing. This capability is confirmed in the SLAS344G datasheet and enables direct connection to common industrial and utility meter displays without external segment drivers. The MSP430F4371IPNR uses dedicated S0–S39 and COM0–COM3 pins to achieve this configuration.
Does the MSP430F4371IPNR include an analog-to-digital converter (ADC)?
No, the MSP430F4371IPNR does not include the ADC12 module. Per the SLAS344G datasheet, the "x43x1" and "x44x1" device variants explicitly exclude the 12-bit ADC found in their "x43x" and "x44x" counterparts. The MSP430F4371IPNR retains the on-chip comparator but requires external ADCs for analog signal digitization.
What package type and pin count does the MSP430F4371IPNR use?
The MSP430F4371IPNR uses an 80-pin plastic quad flat pack (QFP) package, designated by the "PN" suffix. This surface-mount package is RoHS-compliant and compatible with standard PCB assembly processes. Pin assignments match other MSP430x43x1 devices in the PN package, including MSP430F4351IPN and MSP430F4361IPN.
How does the MSP430F4371IPNR handle low-power operation?
The MSP430F4371IPNR implements five power-saving modes, with standby mode consuming only 1.1 µA and off mode (RAM retention) drawing just 0.1 µA. Wake-up from standby occurs in under 6 µs via the DCO, enabling rapid response to interrupts while maintaining multi-year battery life in applications like portable meters and thermostats.
Can the MSP430F4371IPNR be programmed in-system without external voltage?
Yes, the MSP430F4371IPNR supports serial onboard programming with no external programming voltage required. Its integrated bootstrap loader enables firmware updates via UART using the BSL protocol, allowing field upgrades and initial programming through standard serial interfaces without dedicated JTAG hardware.
MSP430F4371IPNR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 80-LQFP
- Series:
- MSP430x4xx
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- MSP430 CPU16
- Core Size:
- 16-Bit
- Speed:
- 8MHz
- Connectivity:
- SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, LCD, POR, PWM, WDT
- Number of I/O:
- 48
- Program Memory Size:
- 32KB (32K x 8 + 256B)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 1K 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:
MSP430F4371IPNR FAQ
1.How can I place an order for MSP430F4371IPNR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F4371IPNR 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 MSP430F4371IPNR reliable?
The price and inventory of MSP430F4371IPNR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F4371IPNR is usually 5 days.
3.What payment methods are accepted for MSP430F4371IPNR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F4371IPNR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F4371IPNR?
MSP430F4371IPNR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F4371IPNR 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 MSP430F4371IPNR?
For technical support, including MSP430F4371IPNR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F4371IPNR requirements.
6.How does Aetrix verify that MSP430F4371IPNR is sourced from the original manufacturer or authorized distributors?
All MSP430F4371IPNR 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 MSP430F4371IPNR meets industry standards.
7.What is the process for return or replacement of MSP430F4371IPNR?
All MSP430F4371IPNR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F4371IPNR, 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 MSP430F4371IPNR part is unused and in its original packaging.
Return procedure for MSP430F4371IPNR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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