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Texas Instruments MSP430FR5734IPW
- Part No.:
- MSP430FR5734IPW
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 28-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MSP430FR5734IPW.pdf
- Description:
- IC MCU 16BIT 8KB FRAM 28TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:235
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Product details
Overview
MSP430FR5734IPW from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller featuring 8KB FRAM nonvolatile memory, 1KB SRAM, and a 24-MHz CPU. It integrates a 10-bit ADC with up to 8 external channels, a 16-channel analog comparator, three eUSCI modules (two UART/SPI-capable, one I²C/SPI-capable), five 16-bit timers, RTC, and hardware multiplier. It targets battery-powered sensor nodes and data acquisition systems requiring long runtime and robust nonvolatile storage.
For engineers reviewing the MSP430FR5734IPW datasheet, MSP430FR5734IPW pinout, MSP430FR5734IPW application, or MSP430FR5734IPW equivalent, key selection criteria include FRAM endurance (10¹⁵ writes), LPM3.5 RTC current (1.5 µA), 28-pin TSSOP package footprint, 2–3.6 V supply range, and integrated DMA for low-CPU-overhead peripheral handling.
Technical Context
The MSP430FR5734IPW implements the MSP430xV2 CPU core with unified FRAM memory architecture enabling simultaneous read/write and eliminating erase cycles. Its power management supports seven low-power modes, including LPM3.5 with crystal-based RTC (1.5 µA) and LPM4.5 shutdown (0.32 µA).
Peripherals are tightly coupled via three-channel DMA and clocked by a flexible system clock tree with DCO (up to 24 MHz), VLO, LFXT (32 kHz), and HFXT options. The eUSCI_A0/A1 modules support UART with auto-baud detection and IrDA, while eUSCI_B0 handles I²C with multi-slave addressing and SPI.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU (MSP430xV2) with 24-MHz max clock - enables deterministic real-time control at ultra-low power |
| Nonvolatile Memory | 8KB FRAM - provides true EEPROM-like write endurance (10¹⁵ cycles), 125 ns/word write speed, no erase required |
| RAM | 1KB SRAM - sufficient for stack, variables, and DMA buffers in compact embedded applications |
| ADC | 10-bit SAR ADC with 8 external + 2 internal channels - supports 200 ksps sampling at 100 µA, ideal for periodic sensor reads |
| Low-Power Modes | LPM3.5 (RTC active): 1.5 µA typical - enables calendar-aware wake-up without external RTC IC |
| Supply Voltage | 2.0 V to 3.6 V - compatible with single-cell Li-ion, Li-SOCl₂, and dual-cell alkaline batteries |
| Operating Temp | –40°C to +85°C - qualified for industrial and outdoor environmental monitoring deployments |
Pinout & Package
TSSOP-28 package (PW suffix), 9.7 mm × 4.4 mm body, 0.65 mm pitch, exposed thermal pad recommended to be connected to DVSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST/NMI/SBWTDIO | Reset / Non-maskable interrupt / Spy-Bi-Wire debug input | Single-pin debug interface enables programming and breakpoint debugging with minimal PCB footprint |
| TEST/SBWTCK | Spy-Bi-Wire test clock | Second pin for 2-wire JTAG-equivalent debug - eliminates need for full 4-pin JTAG header |
| P1.0/TA0.1/DMAE0/RTCCLK/A0*/CD0/VeREF- | Multi-function GPIO with timer capture, DMA trigger, RTC cal output, ADC input, comparator input, ref voltage | Enables time-stamped sensor sampling, hardware-triggered ADC conversions, and precision reference routing on one pin |
| P1.1/TA0.2/TA1CLK/CDOUT/A1*/CD1/VeREF+ | Multi-function GPIO with timer compare, timer clock input, comparator output, ADC input, comparator input, ref voltage | Supports PWM generation, synchronous peripheral timing, and differential ADC reference setup |
| eUSCI_A0 (P1.4/P1.5/UCA0STE/UCA0CLK) | UART/IrDA/SPI interface signals | Configurable serial interface for sensor telemetry, bootloader communication, or host MCU bridging |
| eUSCI_B0 (P1.6/P1.7/UCB0SIMO/UCB0SOMI/UCB0SCL/UCB0SDA) | I²C/SPI interface signals | Enables connection to I²C sensors (temperature, humidity) or SPI peripherals (flash, transceivers) without bit-banging |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 8KB nonvolatile memory with 10¹⁵ write cycles, 125 ns write time, and built-in ECC - eliminates flash wear-out concerns in logging applications |
| Ultra-Low-Power RTC | Real-time clock with calendar and alarm in LPM3.5 draws only 1.5 µA with 32-kHz crystal - extends battery life beyond 10 years in coin-cell-powered devices |
| Hardware Acceleration | 32-bit hardware multiplier and three-channel DMA - offloads math-intensive tasks (e.g., FIR filtering) and burst transfers (e.g., ADC → FRAM) from CPU |
| Analog Integration | 10-bit ADC (200 ksps @ 100 µA) + 16-channel comparator with programmable hysteresis - supports simultaneous threshold monitoring and high-speed sampling |
| Flexible Clock System | DCO (6 factory-trimmed frequencies), VLO, LFXT, HFXT - allows dynamic clock scaling and fail-safe fallback without external components |
Applications
| Smart Metering Node | Wireless Sensor Transmitter |
|---|---|
Use Scenario: Battery-powered electricity/water meter collecting pulse counts and temperature every 15 minutes, storing logs in FRAM, and transmitting via sub-GHz RF every hour. IC Role / Device Role / Timing Role: Main system controller executing metering firmware, managing RTC-triggered sampling, buffering data in FRAM, and driving RF module via SPI. Use Value: 8KB FRAM retains 6+ months of hourly logs without wear degradation; LPM3.5 RTC enables precise scheduling at 1.5 µA, extending CR2032 life to >10 years. | Use Scenario: Compact environmental sensor node measuring temperature, humidity, and CO₂, then wirelessly reporting to gateway using BLE or LoRaWAN. IC Role / Device Role / Timing Role: Central MCU acquiring analog sensor outputs via ADC/comparator, performing basic calibration, and managing low-power radio sleep/wake cycles. Use Value: Integrated comparator monitors thresholds in LPM3 (6.3 µA), waking CPU only on event; FRAM stores calibration coefficients and last-read values across power loss. |
| Industrial Condition Monitor | Asset Tracking Beacon |
Use Scenario: Vibration and temperature monitor attached to motor housing, sampling accelerometer data at 1 kHz, detecting anomalies, and triggering alerts. IC Role / Device Role / Timing Role: Real-time signal processor running FFT-based analysis on DMA-fed ADC data, using Timer_B for precise sampling intervals. Use Value: Hardware multiplier accelerates FFT computation; 24-MHz DCO ensures deterministic loop timing; FRAM stores firmware updates and diagnostic logs. | Use Scenario: GPS-denied indoor asset tracker using RSSI triangulation from BLE beacons, logging location history and motion events. IC Role / Device Role / Timing Role: Low-duty-cycle controller waking on motion (comparator), reading accelerometer, updating position estimate, and writing to FRAM before returning to LPM4.5. Use Value: 0.32 µA LPM4.5 shutdown minimizes quiescent drain; FRAM endures millions of motion-triggered writes over 5+ year deployment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR5732IPW | 4KB FRAM, same 1KB SRAM, identical peripherals and package - reduced nonvolatile storage capacity | Suitable where firmware size and data logging depth are constrained to ≤4KB | Select when cost sensitivity outweighs FRAM capacity needs and application firmware fits within 4KB |
| MSP430FR5736IPW | 16KB FRAM, same 1KB SRAM, identical peripherals and package - doubles nonvolatile memory | Required for extended data logging, OTA firmware updates, or larger real-time OS partitions | Select when future-proofing for firmware growth or high-frequency sensor logging is critical |
Compared with MSP430FR5732IPW and MSP430FR5736IPW, the MSP430FR5734IPW offers balanced FRAM capacity (8KB) for mid-tier data logging depth and firmware complexity, maintaining identical power profiles, peripheral sets, and pin compatibility in the 28-pin TSSOP package.
Availability
MSP430FR5734IPW is available at Aetrix Electronics and suitable for smart metering, wireless sensor networks, industrial condition monitoring, and asset tracking applications requiring stable component supply, long-term manufacturability, and TI's industrial-grade qualification.
Supply support for MSP430FR5734IPW 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 headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and consumer markets.
The MSP430FR57xx family was designed specifically for ultra-low-power sensing and system management in energy-constrained environments such as building automation, smart grid infrastructure, and portable instrumentation.
FAQ
What is the maximum operating frequency of the MSP430FR5734IPW?
The MSP430FR5734IPW features a digitally controlled oscillator (DCO) with six factory-trimmed frequencies, supporting a maximum system clock of 24 MHz. This frequency is fully operational across the entire specified temperature and voltage range (–40°C to +85°C, 2.0 V to 3.6 V), enabling deterministic real-time execution for time-critical sensor fusion or communication protocols. The MSP430FR5734IPW maintains this performance without requiring external crystals for core operation.
Does the MSP430FR5734IPW support hardware UART bootloading?
Yes, the MSP430FR5734IPW includes a built-in hardware UART bootloader (BSL) accessible via eUSCI_A0 or eUSCI_A1. This allows field firmware updates over UART without requiring JTAG or Spy-Bi-Wire debug hardware. The BSL is ROM-resident, immune to FRAM corruption, and supports password-protected entry. The MSP430FR5734IPW leverages its integrated FRAM to store updated application code directly during BSL operation.
How many analog input channels does the MSP430FR5734IPW ADC support?
The MSP430FR5734IPW integrates a 10-bit ADC (ADC10_B) with support for up to 8 external analog input channels (A0–A7) plus 2 internal channels (temperature sensor and VMID). This configuration is confirmed for the PW-package variant per TI's SLAS639L datasheet Table 3-1 and Section 5.29. The MSP430FR5734IPW does not support the 12-channel configuration found in higher-variant members like the MSP430FR5735.
What low-power mode current does the MSP430FR5734IPW draw with RTC active?
In LPM3.5 mode with the real-time clock (RTC) running from a 32-kHz crystal, the MSP430FR5734IPW draws a typical current of 1.5 µA. This value is measured under recommended operating conditions (3.0 V, 25°C) and includes RTC oscillator, calendar logic, and alarm circuitry - all fully functional while CPU and most peripherals remain powered down. This ultra-low RTC current enables decade-scale battery operation in the MSP430FR5734IPW.
Is the MSP430FR5734IPW pin-compatible with other devices in the FR573x family?
Yes, the MSP430FR5734IPW in the 28-pin TSSOP (PW) package shares identical pinout and electrical characteristics with other PW-package variants in the FR573x family, including MSP430FR5730IPW, MSP430FR5732IPW, MSP430FR5736IPW, and MSP430FR5738IPW. This allows direct substitution within the same package footprint, provided firmware accommodates differences in FRAM size (4KB/8KB/16KB) and ADC channel count (6/8/12).
MSP430FR5734IPW Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 28-TSSOP (0.173", 4.40mm Width)
- Series:
- MSP430™ FRAM
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- MSP430 CPUXV2
- Core Size:
- 16-Bit
- Speed:
- 24MHz
- Connectivity:
- I2C, IrDA, LINbus, SCI, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O:
- 21
- Program Memory Size:
- 8KB (8K x 8)
- Program Memory Type:
- FRAM
- EEPROM Size:
- -
- RAM Size:
- 1K x 8
- Voltage - Supply (Vcc/Vdd):
- 2V ~ 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:
MSP430FR5734IPW FAQ
1.How can I place an order for MSP430FR5734IPW through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR5734IPW 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 MSP430FR5734IPW reliable?
The price and inventory of MSP430FR5734IPW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR5734IPW is usually 5 days.
3.What payment methods are accepted for MSP430FR5734IPW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR5734IPW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR5734IPW?
MSP430FR5734IPW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR5734IPW 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 MSP430FR5734IPW?
For technical support, including MSP430FR5734IPW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR5734IPW requirements.
6.How does Aetrix verify that MSP430FR5734IPW is sourced from the original manufacturer or authorized distributors?
All MSP430FR5734IPW 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 MSP430FR5734IPW meets industry standards.
7.What is the process for return or replacement of MSP430FR5734IPW?
All MSP430FR5734IPW units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR5734IPW, 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 MSP430FR5734IPW part is unused and in its original packaging.
Return procedure for MSP430FR5734IPW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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