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Texas Instruments MSP430FW425IPMR
- Part No.:
- MSP430FW425IPMR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
MSP430FW425IPMR.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,218
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Product details
Overview
MSP430FW425IPMR from Texas Instruments is a 16-bit ultra-low-power mixed-signal microcontroller with 16KB flash, 512B RAM, integrated 96-segment LCD driver, scan interface for sensor measurement, and dual 16-bit timers-designed for battery-powered utility meters and analog/digital sensor systems.
For engineers reviewing the MSP430FW425IPMR datasheet, MSP430FW425IPMR pinout, MSP430FW425IPMR application, or MSP430FW425IPMR equivalent, key selection criteria include its 64-pin QFP package, sub-µA standby current (0.7 µA), <6 µs wake-up time, and built-in scan interface for resistive/GMR sensor excitation and signal acquisition in metering applications.
Technical Context
The MSP430FW425IPMR implements a 16-bit RISC CPU with 125-ns instruction cycle time and five software-selectable low-power modes-including LPM4 with 0.1 µA off-mode RAM retention. Its FLL+ clock system supports ACLK (32.768 kHz crystal), MCLK, and SMCLK generation with DCO stabilization in under 6 µs.
It integrates Timer0_A3 (3 capture/compare registers) and Timer1_A5 (5 capture/compare registers), Comparator_A, programmable brownout detection, and a dedicated scan interface with four excitation channels (SIFCH0–SIFCH3), internal 10-bit DAC (SIFDACOUT), and comparator output (SIFCAOUT) for background volume measurement in gas/heat/water meters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with constant generators; enables single-cycle register operations and high code efficiency for embedded sensor firmware. |
| Memory | 16KB + 256B flash / 512B RAM; supports in-system programming via BSL or JTAG, with segmented erase for field updates. |
| Power Consumption | Active mode: 200 µA at 1 MHz, 2.2 V; Standby: 0.7 µA; Off mode (RAM retention): 0.1 µA-enables multi-year battery life in portable meters. |
| Wake-up Time | <6 µs from standby to active mode; critical for responsive sensor polling and low-latency interrupt handling in metering cycles. |
| LCD Support | Drives up to 96 segments with 1–4 multiplexing; eliminates external display controller in handheld and utility meter HMI designs. |
| Scan Interface | Integrated analog front-end with 4-channel excitation (SIFCH0–SIFCH3), 10-bit DAC output (SIFDACOUT), and comparator (SIFCAOUT); enables direct LC/resistive sensor readout without external signal conditioning. |
Pinout & Package
Package: 64-pin Quad Flat Pack (QFP), RoHS-compliant, surface-mount.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0/TA0.0 | General I/O / Timer0_A capture/compare input/output | Primary BSL data transmit pin; supports PWM, capture, and serial bootloader communication. |
| P1.1/TA0.0/MCLK | General I/O / Timer0_A capture input / MCLK output | BSL data receive pin; provides system clock output for debug or peripheral synchronization. |
| P2.6/CAOUT/S19 | Comparator_A output / LCD segment 19 | Direct analog comparator result routing to LCD or digital logic; enables threshold-based visual alerts. |
| P6.0–P6.3/SIFCH0–SIFCH3 | Scan interface excitation outputs | Drive excitation current/voltage to up to four LC or resistive sensors (e.g., flow transducers) in metering applications. |
| P6.6/SIFCI2/SIFDACOUT | Scan interface channel 2 input / 10-bit DAC output | Accepts sensor return signal or generates precision reference voltage for ratiometric measurements. |
| RST/NMI | Reset / non-maskable interrupt input | Hardware reset initiation and fault-triggered emergency interrupt entry point. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Scan Interface | Four independent sensor excitation channels with internal DAC and comparator-eliminates external analog front-end ICs in gas/heat/water meter designs. |
| Ultra-Low-Power Operation | 0.1 µA off-mode current with full RAM retention-supports long-term data logging during power loss in utility meters. |
| On-Chip LCD Driver | 96-segment drive with 1–4 MUX support-reduces bill-of-materials and PCB area for local display in handheld and fixed meters. |
| FLL+ Clock System | Digital frequency-locked loop stabilizes DCO to crystal reference in <6 µs-ensures fast, accurate timing recovery after wake-up events. |
| Programmable Brownout Detection | User-configurable SVS threshold with supervisor/monitor modes-prevents erratic operation during battery voltage sag in field-deployed devices. |
Applications
| Gas Metering | Water Metering |
|---|---|
Use Scenario: Measures volumetric flow using LC resonant sensors excited by SIFCH outputs and monitored via SIFCI inputs. IC Role / Device Role / Timing Role: Primary system controller executing sensor excitation, signal acquisition, temperature compensation, and LCD display update. Use Value: Integrated scan interface and 96-segment LCD driver reduce component count by ≥3 ICs versus discrete solutions. | Use Scenario: Detects mechanical rotation of turbine or ultrasonic transit-time differences in residential water meters. IC Role / Device Role / Timing Role: Real-time sensor interface with sub-µA standby and <6 µs wake-up ensures rapid response to flow pulses while preserving battery life. Use Value: 0.7 µA standby current enables >10-year battery life in AMI-enabled water meters operating on two AA cells. |
| Heat Metering | Industrial Counter Systems |
Use Scenario: Calculates thermal energy using paired temperature sensors (inlet/outlet) and flow rate derived from scan interface readings. IC Role / Device Role / Timing Role: Mixed-signal processor managing analog sensor inputs, timer-based flow integration, and LCD-based energy display. Use Value: On-chip comparator and dual 16-bit timers enable precise delta-T and pulse-counting without external ADC or counter ICs. | Use Scenario: Counts mechanical or optical pulses in industrial production line counters with local LCD status display. IC Role / Device Role / Timing Role: Low-power event counter with integrated display and EEPROM-like flash for persistent count storage. Use Value: 16KB flash memory allows robust firmware with error logging, calibration tables, and secure BSL password protection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FW423IPMR | 8KB flash, 256B RAM, same 64-pin QFP package and peripheral set | Lower memory capacity limits firmware complexity and data buffering depth | Select when application requires only basic scan interface functionality and minimal code footprint. |
| MSP430FW427IPMR | 32KB flash, 1KB RAM, identical peripherals and pinout | Higher memory supports advanced algorithms (e.g., harmonic analysis, wireless stack) | Select when future firmware expansion, OTA updates, or enhanced diagnostics are required. |
Compared with MSP430FW423IPMR and MSP430FW427IPMR, the MSP430FW425IPMR offers balanced memory (16KB/512B) for mid-tier metering applications-providing sufficient space for calibrated sensor math and display logic without over-provisioning cost or power overhead.
Availability
MSP430FW425IPMR is available at Aetrix Electronics and suitable for gas metering, water metering, and heat metering applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MSP430FW425IPMR 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 expertise in ultra-low-power design.
The MSP430FW42x product line was engineered specifically for battery-operated utility metering and sensor-based measurement systems-integrating scan interface, LCD driver, and ultra-low-power timers into a single chip to replace multi-IC meter architectures.
FAQ
What is the maximum LCD segment count supported by the MSP430FW425IPMR?
The MSP430FW425IPMR supports up to 96 LCD segments with 1-, 2-, 3-, or 4-multiplex configurations. This capability is implemented in hardware via dedicated LCD control registers and segment/common drivers-enabling direct drive of alphanumeric displays in utility meters without external controllers. The MSP430FW425IPMR's LCD module automatically routes signals based on configured MUX settings, not port select bits.
Does the MSP430FW425IPMR include a hardware scan interface for sensor measurement?
Yes, the MSP430FW425IPMR includes a dedicated scan interface (SIF) with four excitation channels (SIFCH0–SIFCH3), four signal inputs (SIFCI0–SIFCI3), internal 10-bit DAC (SIFDACOUT), and comparator output (SIFCAOUT). This analog front-end is explicitly designed for resistive, LC, and GMR sensor readout in gas, heat, and water meters-as confirmed in the SLAS383E datasheet functional description and pin table.
What are the power consumption specifications for the MSP430FW425IPMR in active and standby modes?
The MSP430FW425IPMR draws 200 µA in active mode at 1 MHz and 2.2 V, 0.7 µA in standby mode, and 0.1 µA in off mode with RAM retention. These values are measured and specified in the SLAS383E datasheet under "Ultra-Low-Power Consumption" and apply directly to the MSP430FW425IPMR variant per its family characterization.
Which package type is used for the MSP430FW425IPMR?
The MSP430FW425IPMR uses a 64-pin Quad Flat Pack (QFP) package, as stated in the "Available in 64-Pin Quad Flat Pack (QFP)" feature line of the SLAS383E datasheet and confirmed by the pin diagram and terminal function table covering pins 1–64.
Can the MSP430FW425IPMR be programmed in-system without external hardware?
Yes, the MSP430FW425IPMR supports in-system programming via its bootstrap loader (BSL) using UART communication on P1.0 (TX) and P1.1 (RX), requiring no external programming voltage. The BSL is protected by a user-defined password and resides in boot memory (0FFFh–0C00h), enabling field firmware updates without JTAG hardware.
MSP430FW425IPMR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 64-LQFP
- Series:
- MSP430x4xx
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- MSP430 CPU16
- Core Size:
- 16-Bit
- Speed:
- 8MHz
- Connectivity:
- -
- 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:
- Slope A/D
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430FW425IPMR FAQ
1.How can I place an order for MSP430FW425IPMR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FW425IPMR 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 MSP430FW425IPMR reliable?
The price and inventory of MSP430FW425IPMR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FW425IPMR is usually 5 days.
3.What payment methods are accepted for MSP430FW425IPMR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FW425IPMR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FW425IPMR?
MSP430FW425IPMR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FW425IPMR 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 MSP430FW425IPMR?
For technical support, including MSP430FW425IPMR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FW425IPMR requirements.
6.How does Aetrix verify that MSP430FW425IPMR is sourced from the original manufacturer or authorized distributors?
All MSP430FW425IPMR 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 MSP430FW425IPMR meets industry standards.
7.What is the process for return or replacement of MSP430FW425IPMR?
All MSP430FW425IPMR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FW425IPMR, 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 MSP430FW425IPMR part is unused and in its original packaging.
Return procedure for MSP430FW425IPMR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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