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Texas Instruments MSP430F427AIPM
- Part No.:
- MSP430F427AIPM
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
MSP430F427AIPM.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,130
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Product details
Overview
MSP430F427AIPM from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller featuring 32KB flash, 1KB RAM, three independent 16-bit sigma-delta ADCs with differential PGA inputs, integrated 128-segment LCD driver, and UART/SPI serial interface - designed for high-precision portable metering applications including energy meters and handheld weigh scales.
For engineers reviewing the MSP430F427AIPM datasheet, MSP430F427AIPM pinout, MSP430F427AIPM application, or MSP430F427AIPM equivalent, this page delivers verified technical context, validated pin functions, real-world use cases, and confirmed alternative options aligned to TI's SLAS587 specification and MSP430x4xx Family User's Guide (SLAU056).
Technical Context
The MSP430F427AIPM implements a 16-bit RISC CPU with constant generators and seven addressing modes, enabling single-cycle register operations and optimized code efficiency. Its FLL+ clock system uses a 32.768 kHz watch crystal to digitally lock the DCO to stable MCLK/SMCLK/ACLK outputs, achieving wake-up from LPM4 in under 6 μs.
Three SD16 sigma-delta ADCs operate independently with programmable gain amplifiers, differential inputs, and internal reference; each supports 16-bit resolution with up to 192 kSPS effective sampling rate. The integrated LCD controller drives static or 2–4 MUX displays using dedicated segment/common outputs and on-chip bias generation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 125-ns instruction cycle time and 16 general-purpose registers for deterministic timing-critical firmware execution. |
| Memory | 32KB + 256B flash (main + info memory) and 1KB RAM - sufficient for complex sensor fusion algorithms and bootloader-resident field updates. |
| ADC Performance | Three independent 16-bit sigma-delta converters, each with differential PGA input stage supporting gains of 1× to 16× - enables simultaneous high-resolution measurement of voltage, current, and temperature in energy metering. |
| Power Consumption | Active mode: 400 μA at 1 MHz / 3.0 V; Standby: 1.6 μA; Off mode (RAM retention): 0.1 μA - extends battery life in portable instrumentation beyond 5 years. |
| LCD Support | Integrated driver for up to 128 segments with 4-backplane (COM0–COM3) support - eliminates external display controllers in handheld meter UIs. |
| Communication | USART0 configurable as UART (asynchronous) or SPI (synchronous), with double-buffered TX/RX and programmable baud rate - simplifies host connectivity and firmware upgrades via BSL. |
| Operating Voltage | 1.8 V to 3.6 V supply range - compatible with single-cell Li-ion, two-cell alkaline, or regulated 3.3 V rails without level-shifting. |
Pinout & Package
Package: 64-pin plastic quad flat pack (QFP), surface-mount, JEDEC MS-026AC compliant, 10 mm × 10 mm body, 0.5 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0.0+/A0.0-- | SD16 Channel 0 differential analog input pair | Direct connection to precision transducer signals; requires shorting unused pairs to AVSS per design guidance. |
| P1.0/TA0 | Timer_A Capture/Compare 0 input/output & BSL transmit | Primary UART TX line during bootstrap loader operation; also serves as CCI0A capture source or Out0 PWM output. |
| P1.1/TA0/MCLK | Timer_A Capture 0 input & MCLK output | BSL receive line; also provides system clock output for external synchronization or debug clock monitoring. |
| P2.4/UTXD0 & P2.5/URXD0 | USART0 UART transmit/receive | Dedicated full-duplex UART pins - enable direct RS-232/RS-485 interface with external level shifters or isolated transceivers. |
| S0–S31, COM0–COM3 | LCD segment and common outputs | Drive up to 128 segments across 4 backplanes; no external bias resistors required - reduces BOM count in meter displays. |
| RST/NMI | Reset input / non-maskable interrupt | Hardware reset initiation and fault-triggered NMI entry - critical for brownout recovery and watchdog timeout handling. |
| TCK/TMS/TDI/TDO | JTAG test interface | Full boundary-scan and flash programming capability - supports production programming and in-system debugging without BSL dependency. |
Key Features
| Feature | Design Value |
|---|---|
| FLL+ Frequency-Locked Loop | Stabilizes internal DCO to exact multiples of 32.768 kHz crystal frequency - eliminates need for external high-frequency oscillator while maintaining ±1% clock accuracy over temperature. |
| Five Low-Power Modes (LPM0–LPM4) | Enables dynamic power scaling: LPM4 draws only 0.1 μA with RAM retention - ideal for wake-on-event sensing in battery-powered meters. |
| Hardware Multiplier (MPY/MPYS/MAC/MACS) | Executes 16×16 signed/unsigned multiply and accumulate in one cycle - accelerates digital filtering, RMS calculation, and tariff computation in energy meter firmware. |
| Supply Voltage Supervisor (SVS) | Programmable threshold detection with SVM and SVR modes - ensures reliable startup and graceful shutdown when VCC drops below 1.8 V or rises above 3.6 V. |
| Bootstrap Loader (BSL) | UART-based flash programming with password protection - allows field firmware updates without JTAG hardware, reducing service cost and logistics complexity. |
Applications
| Energy Metering | Handheld Weigh Scales |
|---|---|
|
Use Scenario: Residential and industrial electricity meters requiring Class 0.5 or better accuracy under varying load and temperature conditions. IC Role / Device Role / Timing Role: Primary system controller performing simultaneous voltage/current sampling, harmonic analysis, tariff calculation, and LCD display update. Use Value: Three independent sigma-delta ADCs eliminate external multiplexing and timing skew, enabling true simultaneous sampling for accurate power factor and reactive energy computation. |
Use Scenario: Portable precision weighing devices used in laboratories, pharmacies, and food processing with battery life >2 years. IC Role / Device Role / Timing Role: Sensor interface MCU acquiring strain gauge bridge signals, compensating for temperature drift, and driving segmented LCD readouts. Use Value: Integrated PGA and 16-bit resolution deliver <10 μV LSB sensitivity - sufficient for 0.001 g resolution on 1 kg full-scale load cells without external signal conditioning. |
| Water/Gas Flow Meters | Portable Multimeters |
|
Use Scenario: Ultrasonic or turbine-based utility flow meters deployed in remote locations with limited maintenance access. IC Role / Device Role / Timing Role: Signal acquisition and processing unit converting time-of-flight or pulse counts into volumetric flow rates and totalizing data. Use Value: Ultra-low standby current (1.6 μA) and fast wake-up (<6 μs) allow periodic sensor activation and sleep cycling - extending primary battery life to 10+ years. |
Use Scenario: Benchtop and handheld multimeters requiring autoranging, true-RMS AC measurement, and graphical LCD display. IC Role / Device Role / Timing Role: Mixed-signal front-end processor managing dual ADC channels, auto-zero calibration, and segmented display refresh. Use Value: On-chip 1.2 V reference and internal temperature sensor enable self-calibration routines - reducing factory trim steps and improving long-term measurement stability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F425AIPM | 16KB flash, 512B RAM, identical peripherals and pinout - lower memory footprint for simpler metering firmware. | Suitable where firmware size <12 KB and RAM usage <400 B; retains same ADC/LCD/UART capabilities. | Select when cost optimization is prioritized and feature set remains unchanged - no PCB or software redesign needed. |
| MSP430F423AIPM | 8KB flash, 256B RAM, same peripheral suite - minimal memory configuration for basic display-driven sensors. | Targeted at low-complexity applications like simple panel meters or single-parameter monitors with fixed firmware. | Choose for lowest bill-of-materials cost in volume production where flash overhead is <4 KB and no future firmware expansion is planned. |
Compared with MSP430F425AIPM and MSP430F423AIPM, the MSP430F427AIPM provides 2× and 4× more flash respectively - enabling advanced features such as multi-tariff billing, encrypted communication stacks, and over-the-air update capability without compromising real-time ADC performance or LCD drive integrity.
Availability
MSP430F427AIPM is available at Aetrix Electronics and suitable for energy metering, portable instrumentation, and industrial sensor node applications requiring stable component supply, long lifecycle support, and traceable sourcing.
Supply support for MSP430F427AIPM 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 50 years of innovation in low-power design.
The MSP430F427AIPM belongs to the MSP430x4xx ultra-low-power mixed-signal MCU family, engineered specifically for battery-operated precision measurement systems where extended runtime and high-resolution analog integration are critical.
FAQ
What is the maximum resolution and sampling rate supported by the SD16 ADCs in MSP430F427AIPM?
The MSP430F427AIPM integrates three independent 16-bit sigma-delta ADCs (SD16). Each channel achieves true 16-bit resolution with programmable oversampling ratios; effective sampling rates reach up to 192 kSPS at reduced resolution or 1.2 kSPS at full 16-bit precision. The MSP430F427AIPM datasheet confirms differential input pairs with integrated PGA gain settings of 1×, 2×, 4×, 8×, and 16× - essential for high-dynamic-range sensor interfacing in energy meters.
Does MSP430F427AIPM support UART communication without external components?
Yes, the MSP430F427AIPM includes USART0, which can be configured as asynchronous UART with fully programmable baud rate generation. It operates directly from internal clocks (ACLK or SMCLK) and supports standard logic-level UART signaling on P2.4 (UTXD0) and P2.5 (URXD0). For RS-232 compatibility, an external level shifter like the MAX3232 is required - but no additional MCU resources or external timers are needed for basic UART functionality in the MSP430F427AIPM.
How does the LCD driver in MSP430F427AIPM reduce system component count?
The MSP430F427AIPM integrates a full 128-segment LCD controller with four common outputs (COM0–COM3) and dedicated segment drivers (S0–S31 plus extended pins), eliminating the need for external LCD bias generators or segment drivers. It supports static, 2-MUX, 3-MUX, and 4-MUX displays and includes on-chip voltage dividers - reducing BOM by up to 8 passive components and simplifying layout in handheld meter designs using the MSP430F427AIPM.
Can MSP430F427AIPM be programmed in-system without JTAG hardware?
Yes, the MSP430F427AIPM includes a factory-programmed Bootstrap Loader (BSL) accessible via UART using P1.0 (TXD) and P1.1 (RXD). With a simple TTL-level serial interface and user-defined password, full flash and RAM programming is possible without JTAG debuggers. This capability is documented in TI application report SLAA089 and enables field firmware updates - a key advantage of the MSP430F427AIPM in deployed metering infrastructure.
What are the absolute maximum ratings for MSP430F427AIPM supply voltage and I/O pins?
Per the MSP430F427AIPM datasheet (SLAS587, p.17), the absolute maximum voltage applied between DVCC/DVSS or AVCC/AVSS is –0.3 V to +4.1 V. Any I/O pin voltage must remain within –0.3 V to VCC + 0.3 V. Exceeding these limits risks permanent damage. The device is rated for operation from –40°C to +85°C ambient, with storage limits of –55°C to +150°C (unprogrammed) or –40°C to +85°C (programmed).
MSP430F427AIPM Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 64-LQFP
- Series:
- MSP430x4xx
- Packaging:
- Tray
- 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:
- 14
- 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 3x16b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430F427AIPM FAQ
1.How can I place an order for MSP430F427AIPM through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F427AIPM 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 MSP430F427AIPM reliable?
The price and inventory of MSP430F427AIPM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F427AIPM is usually 5 days.
3.What payment methods are accepted for MSP430F427AIPM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F427AIPM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F427AIPM?
MSP430F427AIPM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F427AIPM 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 MSP430F427AIPM?
For technical support, including MSP430F427AIPM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F427AIPM requirements.
6.How does Aetrix verify that MSP430F427AIPM is sourced from the original manufacturer or authorized distributors?
All MSP430F427AIPM 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 MSP430F427AIPM meets industry standards.
7.What is the process for return or replacement of MSP430F427AIPM?
All MSP430F427AIPM units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F427AIPM, 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 MSP430F427AIPM part is unused and in its original packaging.
Return procedure for MSP430F427AIPM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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