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Texas Instruments MSP430F4371IPN
- Part No.:
- MSP430F4371IPN
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
MSP430F4371IPN.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,442
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Product details
Overview
MSP430F4371IPN from Texas Instruments is an ultralow-power 16-bit RISC mixed-signal microcontroller with 32KB+256B flash, 1KB RAM, integrated LCD driver for up to 160 segments, two 16-bit timers (Timer_A3 and Timer_B3), and USART0 serial interface. It operates from 1.8 V to 3.6 V and targets battery-powered portable measurement systems requiring long runtime and on-device display.
For engineers reviewing the MSP430F4371IPN datasheet, MSP430F4371IPN pinout, MSP430F4371IPN application, or MSP430F4371IPN equivalent, key selection criteria include its 80-pin QFP package, absence of ADC12 module, LCD segment drive capability, wake-up time under 6 µs from standby, and compatibility with MSP-FET430UIF debugging tools.
Technical Context
The MSP430F4371IPN implements a 16-bit CPU with constant generators and a digitally controlled oscillator (DCO), enabling sub-6-µs wake-up from standby mode. Its architecture supports five power-saving modes and integrates peripherals including a comparator, hardware multiplier, and JTAG-based emulation module.
Unlike the MSP430F437 variant, the MSP430F4371IPN omits the 12-bit ADC12 module but retains full Timer_B3 with three capture/compare registers and shadow registers, dual USART support (only USART0 enabled), and identical LCD driver functionality with COM0–COM3 and S0–S39 segment outputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 125-ns instruction cycle; enables high code efficiency in low-clock-rate sensor applications. |
| Flash / RAM | 32KB+256B flash memory and 1KB RAM; sufficient for firmware with LCD UI, communication stacks, and sensor processing logic. |
| Supply Voltage | 1.8 V to 3.6 V operation; supports direct connection to single-cell Li-ion or alkaline battery systems without regulation. |
| Active Current | 280 µA at 1 MHz and 2.2 V; enables multi-year battery life in periodic-sampling metering devices. |
| Standby Current | 1.1 µA; allows real-time clock operation and fast wake-up for event-triggered sensing. |
| LCD Drive | Supports up to 160 segments with 1–4 multiplexing; drives alphanumeric displays in handheld meters and instrumentation panels. |
| Wake-up Time | <6 µs from standby to active mode; critical for ultra-low-duty-cycle wake-on-interrupt designs. |
Pinout & Package
Package: 80-pin plastic quad flat pack (QFP), PN suffix, -40°C to +85°C operating range.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DVCC1 / DVCC2 | Digital supply voltage inputs | Separate digital power domains enable noise isolation between core logic and I/O banks. |
| AVCC / AVSS | Analog supply terminals | Power analog circuitry including comparator and LCD resistive divider; must ramp after DVCC. |
| P1.0–P1.7, P2.0–P2.7, etc. | General-purpose I/O with peripheral overlay | Multi-function pins support timer capture/compare, USART, LCD segment/com output, and comparator I/O. |
| COM0–COM3, S0–S39 | LCD backplane and segment drivers | Direct drive of 4-backplane, 40-segment LCDs (160 total segments); eliminates external LCD controller. |
| RST/NMI, TCK, TMS, TDI/TCLK, TDO/TDI | JTAG debug interface | Enables full-speed in-circuit emulation and programming via MSP-FET430UIF or compatible tools. |
Key Features
| Feature | Design Value |
|---|---|
| Ultralow-power operation | 0.1 µA off-mode current with RAM retention enables energy harvesting and coin-cell longevity. |
| Integrated LCD driver | Drives 160 segments without external bias or timing components-reduces BOM count and PCB area. |
| Fast wake-up capability | <6 µs transition from standby to active mode supports responsive interrupt-driven sensor polling. |
| Hardware multiplier | Accelerates math-intensive tasks like FFT, filtering, and calibration compensation in firmware. |
| Two 16-bit timers | Timer_A3 and Timer_B3 with shadow registers support precise PWM generation and input capture for motor control or metering. |
Applications
| Handheld Metering | Industrial Sensor Node |
|---|---|
Use Scenario: Portable multimeter or clamp meter with numeric LCD display and button interface. IC Role / Device Role / Timing Role: Main system controller managing ADC-less signal conditioning, LCD refresh, button scan, and UART data upload. Use Value: Eliminates need for external LCD driver and reduces active power to extend battery life beyond 5 years on AA cells. | Use Scenario: Wireless temperature/humidity node with local LCD readout and periodic RF transmission. IC Role / Device Role / Timing Role: Central MCU coordinating sensor polling, LCD update, low-power sleep scheduling, and UART-to-RF bridge. Use Value: Sub-µA standby current and fast wake-up allow >10-year operation on primary lithium batteries. |
| Energy Monitoring Panel | Medical Diagnostic Handset |
Use Scenario: DIN-rail-mounted electricity meter front panel with segmented LCD showing kWh, voltage, and current. IC Role / Device Role / Timing Role: Dedicated display controller interfacing with main metering SoC via SPI or UART. Use Value: Integrated 160-segment LCD driver replaces discrete driver IC, simplifying layout and improving EMI robustness. | Use Scenario: Portable blood glucose or pulse oximeter with alphanumeric LCD and tactile feedback. IC Role / Device Role / Timing Role: Primary controller handling sensor interface, calculation, LCD rendering, and low-voltage warning logic. Use Value: 1.8 V minimum supply enables direct use of aging alkaline batteries without brownout resets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F437IPN | Includes 12-bit ADC12 module (8 channels, <10 µs conversion); otherwise identical flash/RAM/peripherals. | Required when analog sensor signal acquisition is performed on-chip instead of external ADC. | Select MSP430F437IPN if ADC functionality is needed; MSP430F4371IPN is preferred when ADC is omitted to reduce cost and test complexity. |
| MSP430F4351IPN | 16KB+256B flash, 512B RAM; same pinout, no ADC12, identical LCD/timer/USART0 features. | Suitable for simpler UIs or smaller firmware footprints where 32KB flash is unnecessary. | Choose MSP430F4351IPN for cost-sensitive designs with lower code size requirements and identical peripheral set. |
Compared with MSP430F437IPN, the MSP430F4371IPN removes ADC12 to reduce die size and test cost while retaining full LCD, timer, and communication capability; versus MSP430F4351IPN, it doubles flash and RAM for more complex UI or protocol stack implementations.
Availability
MSP430F4371IPN is available at Aetrix Electronics and suitable for handheld metering, industrial sensor nodes, and energy monitoring panels requiring stable component supply across multi-year production cycles.
Supply support for MSP430F4371IPN 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 over 50 years of innovation in low-power design.
The MSP430x43x1 product line delivers ultralow-power mixed-signal MCUs optimized for portable instrumentation and battery-operated LCD-displayed systems, emphasizing rapid wake-up, integrated peripherals, and extended operational lifetime.
FAQ
What is the maximum LCD segment count supported by the MSP430F4371IPN?
The MSP430F4371IPN supports up to 160 LCD segments using four common (COM0–COM3) and up to 40 segment (S0–S39) outputs. This configuration enables 4-mux alphanumeric displays commonly used in handheld meters and diagnostic tools. The driver operates without external bias components and is fully integrated into the MCU's analog subsystem.
Does the MSP430F4371IPN include an analog-to-digital converter?
No, the MSP430F4371IPN does not include the ADC12 module. It is part of the "x43x1" family variant explicitly defined as identical to the x43x series except for the omission of the 12-bit ADC. Applications requiring analog signal acquisition must use an external ADC or select the pin-compatible MSP430F437IPN.
What debug interfaces are supported on the MSP430F4371IPN?
The MSP430F4371IPN supports standard JTAG via dedicated pins (TCK, TMS, TDI/TCLK, TDO/TDI, RST/NMI) and is fully compatible with TI's MSP-FET430UIF USB debugger and MSP-FET430PIF parallel-port programmer. It also includes an Embedded Emulation Module (EEM) for real-time breakpoints, register inspection, and flash programming.
What is the operating temperature range for the MSP430F4371IPN?
The MSP430F4371IPN is rated for operation from –40°C to +85°C ambient temperature. This industrial-grade range ensures reliable performance in outdoor metering, factory-floor sensors, and portable medical devices exposed to variable environmental conditions.
How many serial communication interfaces does the MSP430F4371IPN provide?
The MSP430F4371IPN provides one Universal Serial Communication Interface (USART0), configurable in either asynchronous UART or synchronous SPI mode via software. Unlike the x44x1 family, it does not include USART1, making it suitable for single-channel host communication or sensor bridging applications.
MSP430F4371IPN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 80-LQFP
- Series:
- MSP430x4xx
- Packaging:
- Bulk
- 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:
MSP430F4371IPN FAQ
1.How can I place an order for MSP430F4371IPN through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F4371IPN 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 MSP430F4371IPN reliable?
The price and inventory of MSP430F4371IPN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F4371IPN is usually 5 days.
3.What payment methods are accepted for MSP430F4371IPN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F4371IPN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F4371IPN?
MSP430F4371IPN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F4371IPN 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 MSP430F4371IPN?
For technical support, including MSP430F4371IPN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F4371IPN requirements.
6.How does Aetrix verify that MSP430F4371IPN is sourced from the original manufacturer or authorized distributors?
All MSP430F4371IPN 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 MSP430F4371IPN meets industry standards.
7.What is the process for return or replacement of MSP430F4371IPN?
All MSP430F4371IPN units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F4371IPN, 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 MSP430F4371IPN part is unused and in its original packaging.
Return procedure for MSP430F4371IPN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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