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Texas Instruments MSP430F4351IPZR
- Part No.:
- MSP430F4351IPZR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
MSP430F4351IPZR.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,105
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Product details
Overview
MSP430F4351IPZR 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 a UART/SPI-capable USART0 - designed for battery-powered portable instrumentation with LCD display and analog sensing.
For engineers reviewing the MSP430F4351IPZR datasheet, MSP430F4351IPZR pinout, MSP430F4351IPZR application, or MSP430F4351IPZR equivalent, key selection criteria include supply voltage range (1.8–3.6 V), active-mode current (280 µA at 1 MHz), standby wake-up time (<6 µs), LCD segment count support, and absence of ADC12 module per device family specification.
Technical Context
The MSP430F4351IPZR implements a 16-bit RISC 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 optimized for extended battery life in measurement 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, alongside an on-chip comparator and serial communication interface (USART0) configurable as asynchronous UART or synchronous SPI - all operating within the 1.8–3.6 V supply range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 125-ns instruction cycle time and hardware multiplier not present |
| Memory | 16KB+256B flash program memory and 512B RAM - sufficient for compact sensor firmware with LCD UI |
| Supply Voltage | 1.8 V to 3.6 V - compatible with single-cell Li-ion, Li-poly, or dual alkaline batteries |
| Active Current | 280 µA at 1 MHz, 2.2 V - enables multi-year operation in low-duty-cycle sensing nodes |
| Standby Wake-up | <6 µs - supports rapid response to external interrupts while maintaining ultralow quiescent power |
| LCD Driver | Supports up to 160 segments with 1–4 multiplexing - drives alphanumeric or custom segment displays without external bias circuitry |
| Peripherals | One USART0 (UART/SPI), two 16-bit timers (Timer_A3, Timer_B3), on-chip comparator, brownout detector, and SVS |
Pinout & Package
Package: 100-pin plastic QFP (PZ), 14 × 14 mm, 0.5 mm pitch - suitable for industrial PCB layouts requiring thermal and mechanical stability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST/NMI | Reset / Nonmaskable Interrupt input | Active-low reset initiation and high-priority interrupt handling |
| P1.0/TA0 | Timer_A0 capture/compare I/O | Primary timer channel for PWM generation or event timing |
| P2.4/UTXD0 | USART0 transmit data output | Drives UART TX line for host communication or debug logging |
| P2.5/URXD0 | USART0 receive data input | Accepts UART RX signals with internal pull-up/pull-down programmable |
| P3.0/STE0 | USART0 slave transmit enable | Controls SPI slave output state during synchronous transfers |
| COM0–COM3 | LCD backplane outputs | Four common outputs supporting 1–4 multiplex LCD configurations |
| S0–S39 | LCD segment outputs | 40 dedicated segment drivers (plus S10–S33, S34–S39) enabling full 160-segment support |
| TCK/TMS/TDO/TDI | JTAG emulation interface | Enables in-circuit debugging and programming via MSP-FET430UIF or compatible tools |
Key Features
| Feature | Design Value |
|---|---|
| Ultralow-power operation | 0.1 µA off-mode (RAM retention) extends shelf life and enables instant-on capability |
| Integrated LCD driver | Eliminates external bias generator and reduces BOM count for portable display systems |
| Dual 16-bit timers with shadow registers | Enables precise PWM, input capture, and waveform generation without CPU overhead |
| Software-configurable USART0 | Single peripheral supports both UART diagnostics and SPI sensor interfacing |
| Brownout detection & SVS | Prevents erratic behavior during battery voltage sag by triggering reset or interrupt |
Applications
| Hand-Held Metering | Industrial Sensor Node |
|---|---|
Use Scenario: Portable multimeter or energy monitor with segmented LCD display and button interface. IC Role / Device Role / Timing Role: Main controller managing analog front-end sampling (via external ADC), LCD refresh, UART-based PC upload, and low-power sleep scheduling. Use Value: 280 µA active current and <6 µs wake-up allow >5-year battery life with 1-second measurement intervals. | Use Scenario: Battery-powered temperature/humidity node transmitting data over UART to gateway. IC Role / Device Role / Timing Role: System-on-chip managing sensor polling, data formatting, LCD status display, and UART transmission bursts. Use Value: Integrated LCD driver and low-voltage operation (1.8 V) eliminate level-shifting and extend usable battery range. |
| Smart Utility Meter Display | Portable Medical Instrument |
Use Scenario: LCD-based electricity/water meter with real-time consumption display and tamper alerts. IC Role / Device Role / Timing Role: Dedicated display controller receiving data via SPI from main metering MCU and driving 128-segment LCD. Use Value: 160-segment LCD support and COM/segment pinout enable direct drive of multi-digit numeric + icon displays. | Use Scenario: Portable pulse oximeter or blood glucose meter with alphanumeric LCD and tactile feedback. IC Role / Device Role / Timing Role: Real-time controller handling LED/current driver timing, button debouncing, LCD update, and low-battery warning. Use Value: On-chip comparator and SVS provide reliable analog threshold detection and supply monitoring without external components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F435IPZ | Includes ADC12 module (12-bit, 8-channel); same flash/RAM, package, and peripherals otherwise | Required when on-chip analog-to-digital conversion is needed - e.g., direct sensor signal digitization | Select MSP430F435IPZ only if ADC functionality is essential; MSP430F4351IPZR avoids ADC-related power and layout complexity |
| MSP430F4371IPZ | 32KB+256B flash, 1KB RAM; identical peripheral set and no ADC12 - higher code capacity for feature-rich firmware | Suitable for applications needing larger firmware space (e.g., protocol stacks, encryption, advanced UI logic) | Choose MSP430F4371IPZ when firmware size exceeds 16KB; pin-compatible and drop-in replacement for PZ package |
Compared with MSP430F435IPZ, MSP430F4351IPZR removes ADC12 to reduce cost and static power, while MSP430F4371IPZ retains the same peripheral feature set but doubles flash for scalable firmware deployment - all share identical 100-pin QFP footprint and LCD timing architecture.
Availability
MSP430F4351IPZR is available at Aetrix Electronics and suitable for hand-held meters, industrial sensor nodes, utility meter displays, and portable medical instruments requiring stable component supply across long production lifecycles.
Supply support for MSP430F4351IPZR 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 and system integration.
The MSP430x43x1 product line targets ultralow-power portable measurement and display applications - prioritizing extended battery life, integrated LCD control, and robust analog interface capability without ADC overhead.
FAQ
What is the key functional difference between MSP430F4351IPZR and MSP430F435IPZ?
The MSP430F4351IPZR omits the ADC12 module present in the MSP430F435IPZ. Both share identical flash (16KB+256B), RAM (512B), package (100-pin QFP), and peripherals including Timer_A3, Timer_B3, USART0, and 160-segment LCD driver. This makes MSP430F4351IPZR ideal for display-centric or digital-sensor applications where external ADCs or digital sensors are used, reducing power and simplifying design.
Does MSP430F4351IPZR support crystal oscillators, and which ones?
Yes, MSP430F4351IPZR supports two crystal oscillators: XT1 (via XIN/XOUT pins) accepts standard or watch crystals for low-frequency operation (e.g., 32.768 kHz real-time clock), and XT2 (via XT2IN/XT2OUT pins) accepts standard crystals up to 8 MHz for system clock generation. The DCO can be calibrated to XT2 for stable high-speed operation without external high-frequency crystals.
How many LCD segments can MSP430F4351IPZR drive, and what multiplexing options are supported?
MSP430F4351IPZR drives up to 160 LCD segments using four common outputs (COM0–COM3) and dedicated segment pins (S0–S39 plus S10–S33, S34–S39). It supports 1-, 2-, 3-, and 4-mux configurations, enabling flexible display designs from simple bar graphs to full alphanumeric panels - all managed by hardware without CPU intervention during refresh.
What debug interfaces are available on MSP430F4351IPZR, and which tools are recommended?
MSP430F4351IPZR features a 4-wire JTAG interface (TCK, TMS, TDO/TDI, TDI/TCLK) compatible with TI's MSP-FET430UIF (USB) and MSP-FET430PIF (parallel port) debuggers. It also supports Spy-Bi-Wire (2-wire JTAG) for space-constrained layouts. Development is supported by Code Composer Studio and naken430usb for open-source toolchains.
Is MSP430F4351IPZR qualified for industrial temperature range, and what is its operating specification?
Yes, MSP430F4351IPZR is specified for −40°C to +85°C ambient operation (industrial grade), as indicated by the "I" in the part number suffix and confirmed in the SLAS344G datasheet. It maintains full functionality across this range, including LCD driver performance, timer accuracy, and supply voltage supervisor thresholds - making it suitable for outdoor, factory-floor, and automotive cabin applications.
MSP430F4351IPZR 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 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:
MSP430F4351IPZR FAQ
1.How can I place an order for MSP430F4351IPZR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F4351IPZR 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 MSP430F4351IPZR reliable?
The price and inventory of MSP430F4351IPZR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F4351IPZR is usually 5 days.
3.What payment methods are accepted for MSP430F4351IPZR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F4351IPZR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F4351IPZR?
MSP430F4351IPZR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F4351IPZR 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 MSP430F4351IPZR?
For technical support, including MSP430F4351IPZR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F4351IPZR requirements.
6.How does Aetrix verify that MSP430F4351IPZR is sourced from the original manufacturer or authorized distributors?
All MSP430F4351IPZR 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 MSP430F4351IPZR meets industry standards.
7.What is the process for return or replacement of MSP430F4351IPZR?
All MSP430F4351IPZR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F4351IPZR, 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 MSP430F4351IPZR part is unused and in its original packaging.
Return procedure for MSP430F4351IPZR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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