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Texas Instruments MSP430F449IPZR
- Part No.:
- MSP430F449IPZR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
MSP430F449IPZR.pdf
- Description:
- IC MCU 16BIT 60KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,833
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Product details
Overview
MSP430F449IPZR from Texas Instruments is an ultralow-power 16-bit mixed-signal microcontroller featuring 60KB+256B flash memory, 2KB RAM, integrated 160-segment LCD driver, dual USARTs, and a 12-bit ADC with internal reference. It operates from 1.8 V to 3.6 V and supports five power-saving modes, enabling sub-6 µs wake-up - ideal for battery-powered portable meters and sensor displays.
For engineers reviewing the MSP430F449IPZR datasheet, MSP430F449IPZR pinout, MSP430F449IPZR application, or MSP430F449IPZR equivalent, key selection considerations include its 100-pin QFP package, Timer_B7 with seven capture/compare registers, hardware multiplier support, and dual UART/SPI capability for industrial HMI and energy metering systems.
Technical Context
The MSP430F449IPZR implements a 16-bit RISC CPU with constant generators and a digitally controlled oscillator (DCO), enabling <6 µs active-mode wake-up from standby. Its architecture integrates two 16-bit timers (Timer_A3 and Timer_B7), where Timer_B7 provides seven independent capture/compare channels with shadow registers for glitch-free PWM generation in motor control or LED dimming.
It features dual USART modules (USART0 and USART1) configurable as asynchronous UART or synchronous SPI, plus a 12-bit ADC12 with sample-and-hold, autoscan, and internal voltage reference - all operating within the 1.8–3.6 V supply range and qualified for −40°C to +85°C industrial environments.
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 | 60KB+256B flash program memory and 2KB RAM - sufficient for complex sensor fusion and display management |
| ADC | 12-bit ADC12 with 8-channel autoscan, internal reference, and <10 µs conversion - enables high-resolution analog sensing without external components |
| Timers | Timer_A3 (3 capture/compare) and Timer_B7 (7 capture/compare with shadow registers) - supports multi-phase PWM and precise timing in metering applications |
| Communication | Dual USARTs (USART0/USART1), each configurable as UART or SPI - allows simultaneous host communication and peripheral interfacing |
| LCD Driver | Integrated driver supporting up to 160 segments with 1/2–1/4 bias and 4-mux - eliminates external LCD controller in portable displays |
| Power Modes | Five low-power modes including Off mode (0.1 µA RAM retention) - extends battery life in always-on measurement devices |
Pinout & Package
Package: 100-pin plastic quad flat pack (PZ), 14 mm × 14 mm, 0.5 mm pitch, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST/NMI | Reset / Nonmaskable Interrupt input | Active-low reset initiation and NMI event handling for critical fault detection |
| TCK/TMS/TDI/TDO | JTAG debug interface | Fully compliant IEEE 1149.1 boundary-scan for in-circuit emulation and programming |
| P1.0–P1.7 | Port 1 I/O | 8-bit general-purpose port with Timer_A inputs (TA0–TA2), comparator inputs (CA0/CA1), and BSL serial I/O |
| P2.0–P2.7 | Port 2 I/O | 8-bit port supporting Timer_B inputs (TB0–TB2), USART0 RX/TX (URXD0/UTXD0), and ADC12 clock (ADC12CLK) |
| P3.0–P3.7 | Port 3 I/O | 8-bit port with USART0 SPI signals (STE0/SIMO0/SOMI0/UCLK0) and Timer_B extended channels (TB3–TB6) |
| P4.0–P4.7 | Port 4 I/O | 8-bit port supporting USART1 (UTXD1/URXD1/STE1/UCLK1/SOMI1/SIMO1) and LCD segment outputs (S32–S39) |
| P5.0–P5.7 | Port 5 I/O | 8-bit port with LCD common outputs (COM0–COM3), analog LCD voltage inputs (R03/R13/R23/R33), and segment drivers (S0–S9) |
| P6.0–P6.7 | Port 6 I/O | 6-bit digital I/O plus SVSIN input; P6.3–P6.6 are ADC analog inputs (A3–A6) on MSP430F44x variants |
| XIN/XOUT | XT1 oscillator terminals | Supports 32.768 kHz watch crystal for real-time clock and low-frequency system timing |
| XT2IN/XT2OUT | XT2 oscillator terminals | Supports high-frequency crystals (up to 8 MHz) for main system clock and FLL+ operation |
| DVCC1/DVCC2/AVCC | Supply rails | Digital supplies (DVCC1/DVCC2) and analog supply (AVCC) with separate ground paths (DVSS1/DVSS2/AVSS) for noise isolation |
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 >10-year coin-cell battery life in static sensors |
| Integrated LCD driver | Drives up to 160 segments with programmable bias and mux configuration - reduces BOM count and PCB area in portable displays |
| Dual configurable USARTs | USART0 and USART1 independently selectable as UART or SPI - supports concurrent serial telemetry and local peripheral control |
| Hardware multiplier | MPY/MPYS/MAC/MACS instructions execute in one cycle - accelerates filtering, FFT, and calibration algorithms in firmware |
| 12-bit ADC with autoscan | Simultaneous sampling across 8 channels with internal reference and sample-and-hold - eliminates need for external precision references in metering |
| Timer_B7 with shadow registers | Seven independent capture/compare channels with double-buffered registers - ensures glitch-free PWM updates during runtime in motor or lighting control |
Applications
| Energy Metering | Portable Medical Instrumentation |
|---|---|
Use Scenario: Digital electricity meter measuring voltage, current, and power factor via shunt/sensor inputs. IC Role / Device Role / Timing Role: Main system controller performing ADC sampling, energy calculation, LCD display update, and RS-485/UART communication. Use Value: Integrated 12-bit ADC with internal reference and Timer_B7 PWM for anti-tamper LED indicators reduce component count and improve metrology accuracy. | Use Scenario: Handheld blood glucose monitor with analog sensor interface, LCD display, and button-driven UI. IC Role / Device Role / Timing Role: Sensor signal acquisition, calibration computation, segmented LCD driving, and low-power sleep/wake scheduling. Use Value: Sub-6 µs wake-up and 0.1 µA off mode enable single-CR2032 operation for >2 years; integrated LCD driver eliminates external display controller. |
| Industrial HMI Panels | Smart Utility Sensors |
Use Scenario: Local operator interface for PLC-controlled HVAC or pump systems with numeric input and status display. IC Role / Device Role / Timing Role: Real-time LCD rendering, keypad scanning, UART communication with master controller, and watchdog supervision. Use Value: Dual USARTs allow simultaneous connection to both host PLC and local diagnostics port; 160-segment LCD support enables custom icon-based UIs. | Use Scenario: Battery-powered water/gas flow sensor transmitting data via UART to gateway over long intervals. IC Role / Device Role / Timing Role: Low-duty-cycle sensor reading, data formatting, burst transmission, and deep-sleep state management. Use Value: Five power modes and 1.1 µA standby extend field lifetime; hardware multiplier accelerates CRC and sensor linearization without CPU overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F448IPZ | 48KB+256B flash, 2KB RAM, same peripherals and pinout - lacks 12KB flash vs. MSP430F449IPZR | Suitable for less complex firmware with smaller code footprint; identical LCD, timer, and communication capabilities | Select when application firmware fits within 48KB and cost optimization is prioritized over future code expansion headroom |
| MSP430F4491IPZ | Same 60KB+256B flash and 2KB RAM, but ADC12 module omitted - no 12-bit analog-to-digital conversion capability | Applicable where analog sensing is handled externally or not required; retains full LCD, timer, and dual USART functionality | Choose when system uses external ADC or relies solely on digital inputs; otherwise, MSP430F449IPZR is required for on-chip 12-bit conversion |
Compared with MSP430F448IPZ, the MSP430F449IPZR provides 12KB additional flash for larger firmware or future feature upgrades; compared with MSP430F4491IPZ, it retains the full ADC12 module essential for embedded analog signal acquisition - making it the only option among the three with integrated high-resolution sensing.
Availability
MSP430F449IPZR is available at Aetrix Electronics and suitable for energy metering, portable medical instrumentation, industrial HMI panels, and smart utility sensors requiring stable component supply across multi-year production cycles.
Supply support for MSP430F449IPZR 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 decades of microcontroller innovation.
The MSP430 family targets ultralow-power applications in portable instrumentation, metering, and sensor systems - designed to maximize battery life while integrating mixed-signal peripherals for system-level integration.
FAQ
What is the maximum operating frequency of the MSP430F449IPZR?
The MSP430F449IPZR supports a maximum system clock frequency of 8 MHz using the FLL+ module with XT2 oscillator input. Its 16-bit RISC core achieves a 125-ns instruction cycle time at this rate, enabling deterministic real-time response in time-critical applications such as energy metering and motor control loops.
Does the MSP430F449IPZR include an integrated ADC, and what are its key specifications?
Yes, the MSP430F449IPZR includes a 12-bit ADC12 module with 8 input channels, internal reference voltage, sample-and-hold, and autoscan capability. Conversion time is under 10 µs, and it supports multiple trigger sources including timer and software - making it suitable for high-accuracy analog measurements in MSP430F449IPZR-based metering and sensor systems.
What LCD configurations does the MSP430F449IPZR support?
The MSP430F449IPZR integrates an LCD controller supporting up to 160 segments with 1/2 or 1/4 bias and 4-mux configuration. It provides dedicated COM0–COM3 backplane outputs and segment outputs S0–S39, enabling direct drive of alphanumeric or custom segment displays without external drivers - a key feature for MSP430F449IPZR-based portable instrumentation.
How many UART and SPI interfaces does the MSP430F449IPZR provide?
The MSP430F449IPZR provides two fully independent USART modules (USART0 and USART1), each configurable in software as either asynchronous UART or synchronous SPI. This enables concurrent serial communication - for example, UART to a host MCU and SPI to a local sensor - without resource contention in MSP430F449IPZR-based industrial designs.
What is the pin count and package type of the MSP430F449IPZR?
The MSP430F449IPZR is housed in a 100-pin plastic quad flat pack (PZ package), measuring 14 mm × 14 mm with 0.5 mm lead pitch. It is RoHS-compliant and designed for surface-mount assembly in industrial and portable equipment - matching the physical footprint of other MSP430x44x PZ variants like MSP430F447IPZ and MSP430F448IPZ.
MSP430F449IPZR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 100-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:
- 60KB (60K x 8 + 256B)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 2K 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:
MSP430F449IPZR FAQ
1.How can I place an order for MSP430F449IPZR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F449IPZR 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 MSP430F449IPZR reliable?
The price and inventory of MSP430F449IPZR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F449IPZR is usually 5 days.
3.What payment methods are accepted for MSP430F449IPZR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F449IPZR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F449IPZR?
MSP430F449IPZR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F449IPZR 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 MSP430F449IPZR?
For technical support, including MSP430F449IPZR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F449IPZR requirements.
6.How does Aetrix verify that MSP430F449IPZR is sourced from the original manufacturer or authorized distributors?
All MSP430F449IPZR 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 MSP430F449IPZR meets industry standards.
7.What is the process for return or replacement of MSP430F449IPZR?
All MSP430F449IPZR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F449IPZR, 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 MSP430F449IPZR part is unused and in its original packaging.
Return procedure for MSP430F449IPZR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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