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Texas Instruments MSP430F4351IPNR
- Part No.:
- MSP430F4351IPNR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
MSP430F4351IPNR.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,008
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Product details
Overview
MSP430F4351IPNR from Texas Instruments is an ultralow-power 16-bit mixed-signal microcontroller featuring 16KB+256B flash memory, 512B RAM, integrated LCD driver for up to 160 segments, two 16-bit timers (Timer_A3 and Timer_B3), and dual USART interfaces. It operates from 1.8 V to 3.6 V and supports five power-saving modes with sub-6-µs wake-up from standby - ideal for battery-powered portable instrumentation and LCD-based metering devices.
For engineers reviewing the MSP430F4351IPNR datasheet, MSP430F4351IPNR pinout, MSP430F4351IPNR application, or MSP430F4351IPNR equivalent, key selection considerations include its QFP-80 package, absence of ADC12 module (distinguishing it from non-"1" variants), LCD segment drive capability, JTAG debug interface, and compatibility with MSP-FET430UIF programming tools.
Technical Context
The MSP430F4351IPNR implements a 16-bit RISC CPU with constant generators and a digitally controlled oscillator (DCO), enabling <6 µs wake-up from standby mode. Its peripheral set includes Timer_A3 (three capture/compare registers), Timer_B3 (three capture/compare registers with shadow registers), and two USART modules configurable as UART or SPI.
Unlike MSP430F435IPN, the "1" suffix denotes omission of the 12-bit ADC12 module; instead, it retains full LCD control (COM0–COM3, S0–S39), comparator_A, SVS/brownout detection, and hardware multiplier support. Power architecture centers on DVCC1/DVCC2 and AVCC/AVSS domains with dedicated supply supervision on P6.7/SVSIN.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 125-ns instruction cycle time and 16 general-purpose registers |
| Memory | 16KB+256B flash program memory and 512B RAM - sufficient for standalone sensor readout and LCD display firmware |
| Operating Voltage | 1.8 V to 3.6 V - enables direct use with single-cell Li-ion or dual-cell alkaline batteries |
| Power Consumption | 280 µA active at 1 MHz/2.2 V; 1.1 µA standby; 0.1 µA off-mode with RAM retention |
| LCD Driver | Supports up to 160 segments with 4-backplane (COM0–COM3) configuration - drives alphanumeric or custom segment displays |
| Timers | Timer_A3 (3 CC registers) and Timer_B3 (3 CC registers + shadow registers) - suitable for PWM generation and input capture in motor control or energy metering |
| Communication | Two USARTs (USART0 and USART1), each software-selectable as UART or SPI - enables host MCU communication and peripheral daisy-chaining |
Pinout & Package
Package: 80-pin plastic quad flat pack (QFP), PN variant, RoHS-compliant, surface-mountable with 0.5 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST/NMI | Reset / Non-maskable interrupt input | Active-low reset initiation and high-priority interrupt handling - critical for system recovery and fault signaling |
| P1.0/TA0 | Timer_A0 capture/compare I/O | Primary timer channel for edge-triggered event timing or PWM output on port 1 |
| P2.4/UTXD0 & P2.5/URXD0 | USART0 transmit/receive data | Dedicated UART interface for asynchronous serial communication with host or display controller |
| P3.0/STE0 & P3.1/SIMO0 | USART0 SPI slave interface | Enables synchronous SPI slave operation for peripheral expansion without additional protocol translation |
| COM0–COM3 & S0–S39 | LCD backplane and segment outputs | Direct drive of multiplexed LCD panels up to 4×40 segments - eliminates need for external LCD drivers |
| TCK/TMS/TDO/TDI | JTAG test interface | Fully compliant IEEE 1149.1 boundary-scan and in-circuit debugging via MSP-FET430UIF or compatible tools |
Key Features
| Feature | Design Value |
|---|---|
| Ultralow-power operation | Sub-µA standby and off-mode currents enable multi-year battery life in portable meters and sensors |
| Integrated LCD controller | Drives 160-segment displays directly - reduces BOM cost and PCB area versus discrete driver solutions |
| Dual configurable USARTs | Single hardware module supports both UART and SPI protocols - simplifies firmware reuse across communication topologies |
| Fast wake-up capability | <6 µs transition from standby to active mode - preserves real-time responsiveness in interrupt-driven applications |
| Hardware multiplier | Accelerates math-intensive operations (e.g., RMS calculation, filtering) without consuming CPU cycles |
Applications
| Portable Energy Meter | Industrial Panel Display |
|---|---|
Use Scenario: Battery-powered electricity meter measuring voltage, current, and energy consumption in remote installations. IC Role / Device Role / Timing Role: Main controller executing metrology algorithms, managing real-time clock, and driving segmented LCD for kWh and tariff display. Use Value: Ultralow-power modes extend battery life beyond 10 years; integrated LCD driver eliminates external components; dual USART supports both RS-485 communication and local IR interface. | Use Scenario: Local HMI on factory equipment showing status, alarms, and process parameters using monochrome segment LCD. IC Role / Device Role / Timing Role: Standalone display controller receiving Modbus RTU commands over UART and rendering data on 128-segment LCD. Use Value: Direct LCD segment control reduces component count; Timer_B3 provides precise PWM dimming; JTAG enables field firmware updates without disassembly. |
| Handheld Test Instrument | Smart Sensor Node |
Use Scenario: Portable multimeter or temperature logger with button interface, backlight control, and USB-to-UART bridge. IC Role / Device Role / Timing Role: System-on-chip managing analog front-end sampling (via external ADC), user input, LCD refresh, and serial data streaming. Use Value: 16KB flash accommodates calibration tables and UI logic; 512B RAM supports buffer storage; wake-up timers synchronize measurement bursts to conserve power. | Use Scenario: Wireless environmental sensor node collecting temperature/humidity and displaying local readings before transmission. IC Role / Device Role / Timing Role: Edge-processing MCU performing sensor fusion, LCD update scheduling, and low-power sleep management between transmissions. Use Value: Sub-0.1 µA off-mode with RAM retention preserves state during deep sleep; LCD driver enables local verification without waking radio; hardware multiplier speeds CRC and filtering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F435IPNR | Includes 12-bit ADC12 module (8 channels, <10 µs conversion); same flash/RAM, package, and peripherals otherwise | Required when on-chip analog signal acquisition (e.g., thermistor, pressure sensor) is needed without external ADC | Select MSP430F435IPNR if analog sensing is integral to the design; MSP430F4351IPNR is preferred when ADC is unnecessary and cost/power minimization is prioritized |
| MSP430F4361IPNR | 24KB+256B flash, 1KB RAM, identical peripheral set and no ADC12 - higher code capacity and memory headroom | Suitable for more complex UI logic, larger calibration datasets, or bootloader implementations requiring extra flash space | Choose MSP430F4361IPNR when firmware size exceeds 16KB or 512B RAM is insufficient for application buffers and stack depth |
Compared with MSP430F435IPNR, MSP430F4351IPNR removes ADC12 to reduce cost and power, while MSP430F4361IPNR increases flash and RAM without altering peripheral functionality - enabling scalable firmware development across product tiers.
Availability
MSP430F4351IPNR is available at Aetrix Electronics and suitable for portable instrumentation, industrial HMI, and smart sensor nodes requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MSP430F4351IPNR 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 for industrial, automotive, and consumer markets.
The MSP430x43x1 product line targets ultra-low-power portable measurement systems, emphasizing extended battery life, integrated LCD control, and robust mixed-signal integration for metering and sensor applications.
FAQ
What is the primary functional difference between MSP430F4351IPNR and MSP430F435IPNR?
The MSP430F4351IPNR omits the 12-bit ADC12 module present in MSP430F435IPNR, while retaining identical flash (16KB+256B), RAM (512B), package (QFP-80), timers, USARTs, and LCD driver. This makes MSP430F4351IPNR optimal for applications where analog-to-digital conversion is handled externally or not required, reducing power consumption and unit cost.
Does MSP430F4351IPNR support JTAG debugging and in-system programming?
Yes, MSP430F4351IPNR includes full IEEE 1149.1 JTAG support via TCK, TMS, TDO, and TDI pins. It is compatible with TI's MSP-FET430UIF debugger and supports serial onboard programming (BSL) through UART using P1.0/P1.1 - enabling both in-circuit debugging and field firmware updates without external programming voltage.
How many LCD segments can MSP430F4351IPNR drive, and what is the maximum multiplex ratio?
MSP430F4351IPNR drives up to 160 segments using four common outputs (COM0–COM3) and 40 segment outputs (S0–S39), supporting 1:2, 1:3, or 1:4 multiplex ratios. This configuration enables alphanumeric displays, bar graphs, or custom symbols in portable meters and industrial HMIs without external segment drivers.
What are the power supply requirements for MSP430F4351IPNR's analog and digital domains?
MSP430F4351IPNR requires separate analog (AVCC/AVSS) and digital (DVCC1/DVCC2/DVSS1/DVSS2) supply rails. AVCC must ramp after DVCC1/DVCC2 and must not exceed DVCC by more than 0.3 V. The SVS input (P6.7/SVSIN) monitors DVCC and triggers reset if voltage drops below programmable threshold - ensuring reliable operation across battery discharge profiles.
Can MSP430F4351IPNR operate without external crystals?
Yes, MSP430F4351IPNR can operate using its internal digitally controlled oscillator (DCO) calibrated to ±1% accuracy at 1 MHz, eliminating need for external XT1/XT2 crystals in cost-sensitive or space-constrained designs. External crystals (32.768 kHz for ACLK, up to 8 MHz for MCLK/SMCLK) are optional for higher precision timing or RTC applications.
MSP430F4351IPNR 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:
- 16KB (16K x 8 + 256B)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 512 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:
MSP430F4351IPNR FAQ
1.How can I place an order for MSP430F4351IPNR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F4351IPNR 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 MSP430F4351IPNR reliable?
The price and inventory of MSP430F4351IPNR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F4351IPNR is usually 5 days.
3.What payment methods are accepted for MSP430F4351IPNR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F4351IPNR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F4351IPNR?
MSP430F4351IPNR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F4351IPNR 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 MSP430F4351IPNR?
For technical support, including MSP430F4351IPNR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F4351IPNR requirements.
6.How does Aetrix verify that MSP430F4351IPNR is sourced from the original manufacturer or authorized distributors?
All MSP430F4351IPNR 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 MSP430F4351IPNR meets industry standards.
7.What is the process for return or replacement of MSP430F4351IPNR?
All MSP430F4351IPNR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F4351IPNR, 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 MSP430F4351IPNR part is unused and in its original packaging.
Return procedure for MSP430F4351IPNR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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