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Texas Instruments MSP430F4371IPZ
- Part No.:
- MSP430F4371IPZ
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
MSP430F4371IPZ.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,267
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Product details
Overview
MSP430F4371IPZ from Texas Instruments is an ultralow-power 16-bit mixed-signal microcontroller featuring 32KB+256B flash memory, 1KB RAM, integrated 160-segment LCD driver, dual 16-bit timers (Timer_A3 and Timer_B3), and two USART modules configurable as UART or SPI. It operates from 1.8 V to 3.6 V and targets battery-powered portable instrumentation with on-device display and sensor interfacing.
For engineers reviewing the MSP430F4371IPZ datasheet, MSP430F4371IPZ pinout, MSP4371IPZ application, or MSP430F4371IPZ equivalent, key selection considerations include its LCD segment count, absence of ADC12 module, QFP-100 package footprint, standby wake-up time under 6 µs, and compatibility with MSP-FET430U100 and MSP-TS430PZ100 development tools.
Technical Context
The MSP430F4371IPZ 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 hardware comparator, programmable SVS with adjustable threshold, serial bootloader (BSL), and security fuse-based code protection. Unlike MSP430F437IPZ, it omits the ADC12 module per TI documentation, confirming its role as a display- and timing-focused variant within the MSP430x43x1 family.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 125-ns instruction cycle; enables high code efficiency for real-time sensor processing. |
| Flash / RAM | 32KB+256B flash + 1KB RAM; sufficient for standalone firmware with LCD UI and communication stacks. |
| Supply Voltage | 1.8 V to 3.6 V; supports single-cell Li-ion or dual-cell alkaline operation without external regulators. |
| Active Current | 280 µA at 1 MHz, 2.2 V; enables multi-year battery life in low-duty-cycle sensing nodes. |
| Standby Current | 1.1 µA; retains RAM and register state while minimizing quiescent drain during sleep intervals. |
| LCD Drive | Up to 160 segments with 1–4 multiplexing; drives alphanumeric or custom segment displays without external drivers. |
| Timers | Timer_A3 (3 capture/compare) + Timer_B3 (3 capture/compare with shadow registers); supports PWM, input capture, and interval timing for motor control or metering. |
| Communication | Two USARTs (USART0, USART1); each configurable as UART or SPI - enables dual-interface connectivity (e.g., host UART + sensor SPI). |
Pinout & Package
Package: 100-pin plastic quad flat pack (QFP), RoHS-compliant, 0.5 mm pitch, body size 14 mm × 14 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST/NMI | Reset / Nonmaskable Interrupt | Active-low reset input; also serves as NMI source for critical fault handling. |
| P1.0/TA0 | Timer_A Capture/Compare 0 | Primary timer channel for pulse-width measurement or PWM output on port 1. |
| P2.4/UTXD0 | USART0 Transmit Data | Drives UART TX line; supports asynchronous communication with host MCU or PC. |
| P2.5/URXD0 | USART0 Receive Data | Receives UART RX data; compatible with standard TTL-level serial interfaces. |
| P3.0/STE0 | USART0 Slave Transmit Enable | Controls SPI slave output enable; required for synchronous master–slave peripheral interfacing. |
| P5.2/COM1 | LCD Common Output 1 | One of four backplane outputs for multiplexed LCD driving; supports up to 4×160 segment configuration. |
| XIN / XOUT | XT1 Crystal Oscillator Input/Output | Supports 32.768 kHz watch crystal for real-time clock or low-frequency timing reference. |
| XT2IN / XT2OUT | XT2 Crystal Oscillator Input/Output | Supports high-frequency crystals (up to 8 MHz) for system clock generation or precise timing. |
| TCK / TMS / TDO / TDI | JTAG Debug Interface | Enables full-speed emulation, flash programming, and boundary-scan testing via MSP-FET430UIF or MSP-FET430U100. |
| DVCC1 / DVCC2 | Digital Power Supply | Dual digital supply pins reduce noise coupling; require local 100 nF decoupling per pin. |
| AVCC / AVSS | Analog Power Supply | Isolated analog domain powers comparator and LCD bias circuitry; must ramp after DVCC. |
| P6.7/SVSIN | Supply Voltage Supervisor Input | Monitors VCC level; triggers reset when voltage drops below programmable SVS threshold. |
Key Features
| Feature | Design Value |
|---|---|
| Ultralow-power operation | 0.1 µA off-mode current with RAM retention enables decade-scale shelf life in sealed instruments. |
| Integrated LCD driver | Direct drive of 160 segments eliminates external LCD controllers, reducing BOM count and PCB area. |
| Dual configurable USARTs | Software-selectable UART/SPI mode per interface allows flexible peripheral integration without hardware redesign. |
| Fast wake-up capability | <6 µs transition from standby to active mode supports responsive event-driven operation in intermittent sensing. |
| On-chip comparator | Comparator_A provides analog threshold detection without ADC overhead, ideal for battery monitoring or alarm triggering. |
| Bootloader support | UART-based BSL enables field firmware updates without JTAG hardware, lowering service cost and complexity. |
Applications
| Portable Gas Detector | Smart Electricity Meter |
|---|---|
|
Use Scenario: Battery-powered handheld unit measuring CO, H₂S, or CH₄ concentration and displaying real-time ppm values. IC Role / Device Role / Timing Role: Main controller executing sensor signal conditioning, LCD refresh, and alarm logic; uses Timer_B3 for precise sampling intervals. Use Value: 1.1 µA standby current extends battery life beyond 2 years; integrated LCD driver reduces component count by 3–5 ICs. |
Use Scenario: DIN-rail mounted utility meter with local display, tamper detection, and RS-485 communication. IC Role / Device Role / Timing Role: System-on-chip managing metrology interface, LCD update, and UART-to-RS485 bridge; uses USART1 for isolated communication. Use Value: Dual USARTs eliminate need for external UART transceivers; 160-segment LCD supports tariff, consumption, and error-code display simultaneously. |
| Industrial Panel Controller | Medical Patient Monitor |
|
Use Scenario: Local HMI on factory floor equipment showing status, setpoints, and diagnostics via segmented LCD. IC Role / Device Role / Timing Role: Dedicated display and I/O manager interfacing with main PLC over UART; handles button debouncing and backlight PWM via Timer_A3. Use Value: Sub-6-µs wake-up ensures immediate response to operator input; no external LCD driver simplifies conformal coating and ESD protection. |
Use Scenario: Portable vital signs monitor displaying ECG waveform, SpO₂, and pulse rate on monochrome LCD. IC Role / Device Role / Timing Role: Real-time display controller synchronizing LCD refresh with ADC-triggered waveform rendering; Comparator_A detects lead-off conditions. Use Value: 32KB flash accommodates dual-language UI and calibration tables; 1.8 V minimum supply supports coin-cell backup during main power loss. |
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 | Includes ADC12 module (12-bit, 8-channel); same flash/RAM, package, and peripherals otherwise. | Required where analog sensor digitization (e.g., thermistor, pressure transducer) occurs on-chip. | Select MSP430F437IPZ if ADC functionality is needed; MSP430F4371IPZ is preferred when ADC is handled externally or not required. |
| MSP430F449IPZ | 60KB flash, 2KB RAM, Timer_B7 (7 capture/compare), dual USARTs, ADC12, hardware multiplier; larger memory and enhanced timers. | Suitable for feature-rich meters or controllers requiring complex algorithms, larger UI assets, or multiple simultaneous protocols. | Choose MSP430F449IPZ for scalability; MSP430F4371IPZ offers optimal cost/performance for display-centric, low-compute applications. |
Compared with MSP430F437IPZ, the MSP430F4371IPZ removes ADC12 to reduce cost and power, making it ideal for display-only or externally digitized systems; versus MSP430F449IPZ, it trades memory and computational headroom for lower price and simpler qualification in cost-sensitive industrial designs.
Availability
MSP430F4371IPZ is available at Aetrix Electronics and suitable for portable instrumentation, smart metering, and industrial HMI applications requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for MSP430F4371IPZ 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 industrial and automotive electronics.
The MSP430x43x1 product line delivers ultralow-power mixed-signal MCUs optimized for battery-operated measurement and display applications, emphasizing LCD integration, fast wake-up, and minimal active current.
FAQ
Does the MSP430F4371IPZ include an analog-to-digital converter (ADC)?
No, the MSP430F4371IPZ does not include the ADC12 module. Per TI's SLAS344G datasheet, the "x1" suffix denotes devices identical to their non-"x1" counterparts except that the ADC12 is omitted. The MSP430F4371IPZ retains all other peripherals - including LCD driver, timers, and USARTs - but requires external ADC for analog signal acquisition. This omission reduces power and cost for display-focused applications.
What development tools are compatible with the MSP430F4371IPZ?
The MSP430F4371IPZ is fully supported by TI's MSP-FET430U100 (100-pin ZIF socket target board) and MSP-TS430PZ100 (stand-alone target board), both designed for PZ-package devices. It also works with the MSP-FET430UIF (USB) and MSP-FET430PIF (parallel port) debuggers via JTAG. Code development is enabled through TI's MSP430Ware and CCS IDE, with example projects covering LCD initialization, USART configuration, and low-power mode transitions specific to MSP430F4371IPZ.
What is the maximum LCD segment count supported by the MSP430F4371IPZ?
The MSP430F4371IPZ supports up to 160 LCD segments using 1–4 multiplexing. Its integrated LCD controller provides four common outputs (COM0–COM3) and up to 40 segment outputs (S0–S39), enabling configurations such as 4×40, 3×53, or 2×80. This matches the specification stated in the functional block diagram and terminal function tables of SLAS344G, and is confirmed across all MSP430x43x1 variants regardless of flash size.
Can the MSP430F4371IPZ operate from a single 3.0 V lithium coin cell?
Yes, the MSP430F4371IPZ operates across 1.8 V to 3.6 V, making it compatible with standard CR2032 (3.0 V nominal) and BR2032 (3.0 V, wider temp range) coin cells. At 3.0 V, its active current remains at 280 µA (1 MHz), and standby current stays at 1.1 µA - enabling multi-year operation in low-duty-cycle applications like periodic environmental logging or push-button activated displays.
How many I/O pins does the MSP430F4371IPZ provide, and are they all individually configurable?
The MSP430F4371IPZ provides 48 general-purpose I/O pins across Ports P1–P6, as documented in the device family description and pin diagrams. All 48 pins are individually configurable as digital inputs or outputs, with optional peripheral functions (e.g., timer capture, USART signals, LCD segments). Port mapping follows TI's standard MSP430x4xx assignment, and each pin supports pull-up/down resistors, interrupt capability, and slew-rate control per the user's guide SLAU056.
MSP430F4371IPZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 100-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:
MSP430F4371IPZ FAQ
1.How can I place an order for MSP430F4371IPZ through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F4371IPZ 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 MSP430F4371IPZ reliable?
The price and inventory of MSP430F4371IPZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F4371IPZ is usually 5 days.
3.What payment methods are accepted for MSP430F4371IPZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F4371IPZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F4371IPZ?
MSP430F4371IPZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F4371IPZ 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 MSP430F4371IPZ?
For technical support, including MSP430F4371IPZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F4371IPZ requirements.
6.How does Aetrix verify that MSP430F4371IPZ is sourced from the original manufacturer or authorized distributors?
All MSP430F4371IPZ 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 MSP430F4371IPZ meets industry standards.
7.What is the process for return or replacement of MSP430F4371IPZ?
All MSP430F4371IPZ units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F4371IPZ, 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 MSP430F4371IPZ part is unused and in its original packaging.
Return procedure for MSP430F4371IPZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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