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Texas Instruments MSP430F5242IRGZR
- Part No.:
- MSP430F5242IRGZR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
MSP430F5242IRGZR.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 48VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,463
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Product details
Overview
MSP430F5242IRGZR from Texas Instruments is an ultra-low-power 16-bit RISC microcontroller with 64 KB flash, 8 KB RAM, four 16-bit timers (TA0/TA1/TA2/TB0), two USCI modules (UART/IrDA/SPI/I²C), 10-bit ADC with 8 external + 2 internal channels, RTC, hardware multiplier, and DMA. It operates from 1.8 V to 3.6 V and targets battery-powered sensor nodes and data loggers requiring sub-2 µA standby current.
For engineers reviewing the MSP430F5242IRGZR datasheet, MSP430F5242IRGZR pinout, MSP430F5242IRGZR application, or MSP430F5242IRGZR equivalent, key selection criteria include its 48-pin VQFN (RGZ) package, LPM3 current of 2.1 µA at 3.0 V, 3.5 µs wake-up time, ADC resolution and channel count, and USCI dual-protocol flexibility for mixed-interface sensor systems.
Technical Context
The MSP430F5242IRGZR implements a unified clock system with FLL stabilization, programmable LDO core regulation, and multiple low-frequency sources (VLO, REFO, XT1, XT2). Its CPUXV2 core supports extended memory addressing and constant generators for optimized code density.
Peripherals are mapped via port multiplexing across 37 GPIOs in the RGZ package, with dedicated analog inputs on P5/P6, USCI_A/B signal routing on P1–P4, and RTC/Timer_B functions assigned to P6/P7 pins - all coordinated by the Port Map Control module for dynamic reconfiguration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPUXV2 with constant generators and extended memory addressing |
| Flash / RAM | 64 KB flash (in-system programmable) + 8 KB SRAM for firmware and real-time data buffering |
| ADC10_A | 10-bit SAR ADC with 8 external + 2 internal input channels, 200 ksps max sampling rate |
| Low-Power Modes | LPM3: 2.1 µA at 3.0 V (RTC active, full RAM retention); LPM4: 1.1 µA; LPM4.5: 0.18 µA |
| Wake-up Time | 3.5 µs typical from LPM3 to active mode - enables rapid response to sensor interrupts |
| USCI Modules | Two independent USCI blocks: USCI_A0/A1 support UART/IrDA/SPI; USCI_B0/B1 support I²C/SPI |
| Timers | TA0 (5 CC), TA1 (3 CC), TA2 (3 CC), TB0 (7 CC shadow registers) for PWM, capture, and RTC synchronization |
Pinout & Package
Package: 48-pin VQFN (RGZ), 7 mm × 7 mm, exposed thermal pad (recommended connection to DVSS).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0/TA0CLK/ACLK | Port 1 bit 0 / Timer_A0 clock input / Auxiliary clock | Configurable as GPIO, timer clock source, or 32-kHz crystal oscillator output for RTC timing |
| P5.4/XIN & P5.5/XOUT | Crystal oscillator input/output | Supports 32-kHz watch crystal (XT1) for low-power RTC operation |
| P5.0/A8/VeREF+ & P5.1/A9/VeREF− | Analog input / ADC reference voltage terminals | Enable external reference or internal VREF+/- sourcing for precise ADC measurements |
| P3.0–P3.4 / P4.0–P4.5 | USCI_A0/A1 & USCI_B0/B1 signal pins | Provide dual-protocol serial connectivity: UART/IrDA/SPI on A ports, I²C/SPI on B ports |
| RST/NMI | Reset and non-maskable interrupt input | Hardware reset initiation and high-priority fault/interrupt handling |
Key Features
| Feature | Design Value |
|---|---|
| Fully integrated LDO | Programmable core voltage regulation eliminates need for external DC/DC converter in space-constrained designs |
| Digital controlled oscillator (DCO) | Enables 3.5 µs wake-up from LPM3 - critical for duty-cycled sensor acquisition |
| 3-channel DMA | Offloads CPU during ADC conversions, USCI transfers, and timer operations to reduce active-mode power |
| RTC_A module with alarm | Provides calendar/timekeeping with interrupt-driven alarms without CPU intervention in LPM3 |
| MPY32 hardware multiplier | Accelerates 32-bit arithmetic for filtering, FFT, or cryptographic routines in firmware |
Applications
| Wireless Sensor Node | Portable Data Logger |
|---|---|
Use Scenario: Battery-powered environmental monitor collecting temperature, humidity, and light data every 5 minutes. IC Role / Device Role / Timing Role: Central MCU managing sensor polling, ADC conversion, RTC-triggered wake-up, and BLE subsystem control. Use Value: 2.1 µA LPM3 current extends 2000-mAh coin cell life beyond 10 years; 3.5 µs wake-up ensures minimal latency in event-driven sampling. | Use Scenario: Handheld industrial logger recording vibration, pressure, and voltage waveforms during field maintenance. IC Role / Device Role / Timing Role: Real-time data aggregator with timestamped storage, USB/UART interface, and low-power sleep between captures. Use Value: 64 KB flash stores >100k samples; 10-bit ADC with internal reference enables ±0.5% measurement accuracy without external components. |
| Smart Meter Endpoint | Wearable Health Monitor |
Use Scenario: Sub-metering unit inside HVAC equipment measuring energy consumption and reporting via RS-485. IC Role / Device Role / Timing Role: Isolated communication controller interfacing with metrology ICs and managing secure firmware updates. Use Value: Dual USCI modules allow simultaneous UART (for metrology IC) and SPI (for isolated transceiver), reducing BOM count and PCB area. | Use Scenario: Compact pulse oximeter acquiring PPG signals and computing SpO₂ using onboard algorithms. IC Role / Device Role / Timing Role: Signal processor running adaptive filtering and saturation calculation while maintaining <10 µA average system current. Use Value: Hardware multiplier accelerates real-time FFT-based noise rejection; 8 KB RAM buffers multi-second waveform segments for analysis. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F5244IRGZ | Same RGZ package, identical peripherals, but 128 KB flash and 10 external ADC channels vs. 64 KB/8 | Preferred where firmware complexity or future OTA update headroom requires larger flash | Select MSP430F5244IRGZ if >64 KB flash is needed; otherwise MSP430F5242IRGZR offers optimal cost/power balance |
| MSP430F5232IRGZ | No ADC10_A module; same 64 KB flash, 8 KB RAM, timers, USCI, and LPM3 current | Suitable only for digital-only sensing (e.g., switch monitoring, I²C sensor hubs) without analog front-end | Choose MSP430F5232IRGZ when analog acquisition is unnecessary - reduces BOM cost and simplifies layout |
Compared with MSP430F5244IRGZ, the MSP430F5242IRGZR trades flash capacity for lower unit cost and identical low-power performance; versus MSP430F5232IRGZ, it adds essential ADC capability for analog sensor integration without increasing standby current or package size.
Availability
MSP430F5242IRGZR is available at Aetrix Electronics and suitable for wireless sensor nodes, portable data loggers, smart meter endpoints, and wearable health monitors requiring stable component supply and long-term industrial availability.
Supply support for MSP430F5242IRGZR 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 company delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.
The MSP430F5242IRGZR belongs to TI's MSP430F5xx ultra-low-power MCU family, designed specifically for battery-operated measurement and sensing applications where multi-year operation from small cells is mandatory.
FAQ
What is the maximum operating frequency of the MSP430F5242IRGZR?
The MSP430F5242IRGZR supports a maximum system clock frequency of 25 MHz, achieved via its digitally controlled oscillator (DCO) with FLL stabilization. This allows high-speed instruction execution while maintaining ultra-low power in active mode - 290 µA/MHz at 8 MHz and 3.0 V during flash execution. The device also supports external high-frequency crystals up to 32 MHz on XT2 for precision timing-critical applications.
Does the MSP430F5242IRGZR include an integrated ADC?
Yes, the MSP430F5242IRGZR integrates a 10-bit successive approximation register (SAR) ADC named ADC10_A, with 8 external analog input channels (A0–A7 on P6/P5) and 2 internal references (VeREF+/VeREF−). It delivers up to 200 ksps sampling rate and supports configurable sample-and-hold, internal reference, and burst conversion modes - enabling direct connection to resistive sensors, thermistors, or bridge circuits without external signal conditioning.
What low-power modes are supported by the MSP430F5242IRGZR?
The MSP430F5242IRGZR supports five low-power modes: LPM0–LPM3 and LPM4.5. In LPM3 (standby), RTC, watchdog, and supply supervisor remain active with full RAM retention and 2.1 µA current at 3.0 V. LPM4 (off mode) draws 1.1 µA, and LPM4.5 (shutdown) consumes just 0.18 µA. Wake-up from LPM3 to active mode occurs in 3.5 µs typical - making it ideal for intermittent-sampling applications like environmental monitoring.
How many USCI modules does the MSP430F5242IRGZR have, and what protocols do they support?
The MSP430F5242IRGZR includes two universal serial communication interfaces (USCI_A0 and USCI_B0). USCI_A0 supports enhanced UART (with auto-baud detection), IrDA encoding/decoding, and synchronous SPI. USCI_B0 supports I²C (including multi-master) and synchronous SPI. Both modules operate independently and can be configured simultaneously - allowing concurrent communication with UART-based debug interfaces and I²C-connected sensors without resource contention.
What is the package type and pin count of the MSP430F5242IRGZR?
The MSP430F5242IRGZR uses a 48-pin VQFN package (RGZ), measuring 7 mm × 7 mm with an exposed thermal pad. It provides 37 general-purpose I/O pins, including dedicated analog inputs, USCI signal lines, timer/clock functions, and JTAG/SBW debug interfaces. TI recommends connecting the thermal pad to DVSS for optimal thermal performance and electrical stability in compact PCB layouts.
MSP430F5242IRGZR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 48-VFQFN Exposed Pad
- Series:
- MSP430F5xx
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- MSP430 CPUXV2
- Core Size:
- 16-Bit
- Speed:
- 25MHz
- Connectivity:
- I2C, IrDA, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, DMA, POR, PWM, WDT
- Number of I/O:
- 37
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 8K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 10x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430F5242IRGZR FAQ
1.How can I place an order for MSP430F5242IRGZR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F5242IRGZR 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 MSP430F5242IRGZR reliable?
The price and inventory of MSP430F5242IRGZR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F5242IRGZR is usually 5 days.
3.What payment methods are accepted for MSP430F5242IRGZR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F5242IRGZR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F5242IRGZR?
MSP430F5242IRGZR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F5242IRGZR 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 MSP430F5242IRGZR?
For technical support, including MSP430F5242IRGZR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F5242IRGZR requirements.
6.How does Aetrix verify that MSP430F5242IRGZR is sourced from the original manufacturer or authorized distributors?
All MSP430F5242IRGZR 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 MSP430F5242IRGZR meets industry standards.
7.What is the process for return or replacement of MSP430F5242IRGZR?
All MSP430F5242IRGZR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F5242IRGZR, 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 MSP430F5242IRGZR part is unused and in its original packaging.
Return procedure for MSP430F5242IRGZR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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