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Texas Instruments MSP430F437IPNR
- Part No.:
- MSP430F437IPNR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
MSP430F437IPNR.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,679
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Product details
Overview
MSP430F437IPNR from Texas Instruments is an ultralow-power 16-bit mixed-signal microcontroller featuring 32KB+256B flash memory, 1KB RAM, integrated 12-bit ADC with internal reference and autoscan, dual 16-bit timers (Timer_A3 and Timer_B3), two USARTs, LCD driver for up to 160 segments, and hardware multiplier-designed for battery-powered portable measurement systems requiring precise analog capture and display.
For engineers reviewing the MSP430F437IPNR datasheet, MSP430F437IPNR pinout, MSP430F437IPNR application, or MSP430F437IPNR equivalent, key selection criteria include its 80-pin QFP package, −40°C to 85°C operating range, 1.8–3.6 V supply, <6 µs wake-up from standby, and integrated LCD/ADC/timer peripherals for sensor-to-display embedded control.
Technical Context
The MSP430F437IPNR implements a 16-bit RISC CPU with constant generators and a digitally controlled oscillator (DCO), enabling sub-6 µs active-mode wake-up from five power-saving modes. Its architecture integrates analog and digital subsystems-including ADC12 with sample-and-hold, comparator_A, and programmable SVS-optimized for single-chip sensor interface and display control.
It supports dual 16-bit timers with capture/compare and shadow registers (Timer_A3 with three registers, Timer_B3 with three), two configurable USARTs (UART/SPI), and an LCD controller with 4× multiplexing and 160-segment drive capability-enabling simultaneous real-time signal processing, communication, and human-machine interface functions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 125-ns instruction cycle time and hardware multiplier for efficient math-intensive firmware |
| Memory | 32KB+256B flash program memory and 1KB RAM-sufficient for complex sensor fusion and display management code |
| ADC | 12-bit successive-approximation ADC with internal reference, sample-and-hold, and autoscan-supports up to 8 channels with <10 µs conversion |
| Timers | Timer_A3 (3 capture/compare registers) and Timer_B3 (3 capture/compare registers with shadow registers)-enables PWM generation, input capture, and interval timing |
| Communication | Two USART modules (USART0 and USART1), each configurable as UART or SPI-provides dual serial interfaces for host communication and peripheral bridging |
| LCD Driver | Integrated LCD controller supporting up to 160 segments with 1/2–1/4 bias and static–4MUX operation-eliminates external display driver IC |
| Power Modes | Five low-power modes including Off mode (0.1 µA RAM retention) and Standby mode (1.1 µA)-extends battery life in intermittent-sensing applications |
Pinout & Package
Package: 80-pin plastic quad flat pack (QFP), PN suffix, RoHS-compliant, 14 mm × 14 mm body, 0.65 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DVCC1 / DVCC2 | Digital supply voltage inputs | Separate 1.8–3.6 V digital power domains for core and I/O sections-improves noise isolation and layout flexibility |
| AVCC / AVSS | Analog supply inputs | Dedicated analog power and ground pins for ADC, comparator, and LCD resistive divider-ensures stable reference and low-noise analog performance |
| P1.0–P1.7, P2.0–P2.7, etc. | General-purpose I/O ports | 48 total I/O pins with interrupt capability, configurable as digital I/O, timer inputs/outputs, or peripheral function pins (e.g., TA0, TB2, UTXD0) |
| P5.2–P5.4 / COM0 | LCD common outputs | Four dedicated COM outputs (COM0–COM3) for driving LCD backplanes in 2-, 3-, or 4-mux configurations |
| S0–S39 | LCD segment outputs | 40 dedicated segment drivers (plus additional port pins usable as segments)-supports up to 160 segments (40 × 4 mux) |
| XT2IN / XT2OUT | High-frequency crystal oscillator interface | Supports external 4–16 MHz standard crystals for precise system clock or MCLK derivation |
| RST/NMI | Reset and non-maskable interrupt input | Single pin serves both reset assertion and NMI event handling-reduces pin count without sacrificing fault response |
Key Features
| Feature | Design Value |
|---|---|
| Ultralow-power operation | 280 µA active at 1 MHz/2.2 V; 1.1 µA standby; 0.1 µA off mode with RAM retention-enables multi-year coin-cell battery life |
| Integrated LCD controller | Drives up to 160 segments with software-selectable bias and mux ratio-replaces discrete LCD driver and reduces BOM cost |
| 12-bit ADC with autoscan | Automatically sequences conversions across up to 8 channels without CPU intervention-ideal for periodic sensor polling |
| Dual 16-bit timers with shadow registers | Timer_B3 supports synchronized PWM outputs and glitch-free compare updates-critical for motor control and precision timing |
| Two configurable USARTs | Each USART independently switchable between UART and SPI modes via software-maximizes interface flexibility with minimal pin overhead |
| Hardware multiplier | 32-bit result in one cycle for MPY/MPYS and MAC/MACS operations-accelerates filtering, scaling, and calibration routines |
Applications
| Portable Medical Sensor | Smart Energy Meter |
|---|---|
Use Scenario: Handheld blood glucose or pulse oximeter capturing analog sensor signals, computing derived metrics, and displaying results on segmented LCD. IC Role / Device Role / Timing Role: Central controller executing sensor acquisition (ADC), computation (hardware multiplier), display update (LCD driver), and user interface (GPIO/USART). Use Value: Single-chip integration eliminates external ADC, display driver, and timing ICs-reducing size, power, and bill-of-materials cost. | Use Scenario: Residential electricity meter measuring voltage/current waveforms, calculating kWh, and showing consumption on LCD with tariff indicators. IC Role / Device Role / Timing Role: Mixed-signal processor performing high-accuracy 12-bit sampling, real-time energy computation, and 160-segment LCD rendering. Use Value: Integrated ADC with internal reference and autoscan enables consistent metrology-grade measurements without external precision references. |
| Industrial Panel Display | Wireless Sensor Node Hub |
Use Scenario: Local HMI on factory equipment showing status, alarms, and setpoints using segmented LCD and pushbutton inputs. IC Role / Device Role / Timing Role: Real-time display controller with GPIO-driven buttons, timer-based debounce, and USART-linked PLC communication. Use Value: Dual USARTs allow concurrent local display updates and upstream data reporting-no time-sharing or external UART bridge required. | Use Scenario: Battery-powered gateway aggregating temperature/humidity data from multiple sensors and transmitting via UART to BLE/Wi-Fi module. IC Role / Device Role / Timing Role: Low-power coordinator managing sensor polling (ADC autoscan), data buffering (1KB RAM), and serial forwarding (USART0/USART1). Use Value: Sub-1 µA standby current and <6 µs wake-up enable ultra-low duty-cycle operation-extending node lifetime beyond 5 years on AA batteries. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F437IPZ | 100-pin QFP package; identical core, memory, and peripheral specs; adds 2 extra I/O pins and full ADC12 channel mapping | Preferred where board layout allows larger footprint and additional analog/digital I/O is needed for expanded sensor or interface count | Select MSP430F437IPZ when PCB space permits and >48 I/O or full ADC12 channel access is required. |
| MSP430F436IPNR | 24KB+256B flash, 1KB RAM, otherwise identical peripheral set and pinout-reduced program memory but same package and interface compatibility | Suitable for cost-sensitive designs with smaller firmware footprints where 32KB flash is unnecessary | Choose MSP430F436IPNR to reduce unit cost while retaining identical packaging, LCD/ADC/timer functionality, and layout compatibility. |
Compared with MSP430F437IPNR, the MSP430F437IPZ offers more I/O and ADC routing in a larger package, while the MSP430F436IPNR delivers identical peripheral integration and pinout at lower flash capacity-enabling scalable design reuse across product tiers without layout redesign.
Availability
MSP430F437IPNR is available at Aetrix Electronics and suitable for portable medical devices, smart energy meters, industrial HMIs, and wireless sensor hubs requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.
Supply support for MSP430F437IPNR 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 90 years of innovation in power efficiency and signal integrity.
The MSP430x43x family was designed specifically for ultralow-power mixed-signal applications demanding integrated analog sensing, real-time processing, and direct LCD interfacing-targeting portable instrumentation, utility metering, and industrial control panels.
FAQ
What is the maximum operating frequency of the MSP430F437IPNR?
The MSP430F437IPNR supports a maximum system clock (MCLK) frequency of 8 MHz via its FLL+ oscillator, derived from internal DCO or external crystals (XT1 or XT2). At 1 MHz, active-mode current is specified at 280 µA (2.2 V), confirming reliable operation across its 1.8–3.6 V supply range without frequency derating.
Does the MSP430F437IPNR include an integrated ADC, and what are its key specifications?
Yes, the MSP430F437IPNR includes a 12-bit successive-approximation ADC (ADC12) with internal reference, sample-and-hold, and autoscan capability. It supports up to 8 input channels, achieves <10 µs conversion time, and features programmable resolution, sampling rate, and memory buffer addressing-enabling autonomous multi-channel sensor acquisition.
How many LCD segments can the MSP430F437IPNR drive, and what mux configurations are supported?
The MSP430F437IPNR drives up to 160 LCD segments using its integrated controller with 1/2, 1/3, or 1/4 bias and static–4MUX operation. It provides four COM outputs (COM0–COM3) and 40 dedicated segment outputs (S0–S39), plus additional port pins usable as segments-supporting common alphanumeric and custom display layouts without external drivers.
What are the power-saving capabilities of the MSP430F437IPNR, and how quickly can it wake up?
The MSP430F437IPNR offers five power-saving modes: Active (280 µA @1 MHz), LPM0–LPM3 (0.7–1.1 µA), and LPM4 (0.1 µA RAM retention). It wakes up from Standby (LPM3) to Active mode in less than 6 µs via interrupt or reset-enabling rapid response to sensor events while maintaining multi-year battery life in duty-cycled applications.
Is the MSP430F437IPNR pin-compatible with other members of the MSP430x43x family?
Yes, the MSP430F437IPNR shares identical 80-pin QFP (PN) package pinout with MSP430F435IPNR and MSP430F436IPNR. All three support the same peripheral mappings, I/O functions, and voltage domains-allowing drop-in replacement within the same package footprint for memory-scaling design variants.
MSP430F437IPNR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 80-LQFP
- Series:
- MSP430x4xx
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- 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:
- A/D 8x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430F437IPNR FAQ
1.How can I place an order for MSP430F437IPNR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F437IPNR 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 MSP430F437IPNR reliable?
The price and inventory of MSP430F437IPNR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F437IPNR is usually 5 days.
3.What payment methods are accepted for MSP430F437IPNR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F437IPNR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F437IPNR?
MSP430F437IPNR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F437IPNR 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 MSP430F437IPNR?
For technical support, including MSP430F437IPNR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F437IPNR requirements.
6.How does Aetrix verify that MSP430F437IPNR is sourced from the original manufacturer or authorized distributors?
All MSP430F437IPNR 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 MSP430F437IPNR meets industry standards.
7.What is the process for return or replacement of MSP430F437IPNR?
All MSP430F437IPNR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F437IPNR, 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 MSP430F437IPNR part is unused and in its original packaging.
Return procedure for MSP430F437IPNR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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