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Texas Instruments MSP430FR5733IRHAT
- Part No.:
- MSP430FR5733IRHAT
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 40-VFQFN Exposed Pad
- Datasheet:
-
MSP430FR5733IRHAT.pdf
- Description:
- IC MCU 16BIT 8KB FRAM 40VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:498
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Product details
Overview
MSP430FR5733IRHAT from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller featuring 8KB FRAM nonvolatile memory, 1KB RAM, 24-MHz system clock, and integrated peripherals including a 10-bit ADC (12 external + 2 internal channels), 16-channel analog comparator, five 16-bit timers, RTC with calendar, and dual eUSCI modules supporting UART/IrDA/SPI/I²C. It targets battery-powered sensor nodes and data acquisition systems requiring long-term reliability and fast write endurance.
For engineers reviewing the MSP430FR5733IRHAT datasheet, MSP430FR5733IRHAT pinout, MSP430FR5733IRHAT application, or MSP430FR5733IRHAT equivalent, key selection criteria include FRAM write cycle endurance (10¹⁵), LPM3.5 RTC current (1.5 µA), 40-pin VQFN package compatibility, and support for embedded security via MPU and ECC-protected memory.
Technical Context
The MSP430FR5733IRHAT implements the MSP430 CPUXV2 core with 16-bit RISC architecture and executes instructions at up to 24 MHz using a flexible clock system comprising DCO, VLO, LFXT (32-kHz crystal), and HFXT. Its FRAM memory replaces traditional flash and SRAM, enabling simultaneous read/write, zero-wait-state execution, and immunity to write wear-out.
Peripherals are tightly coupled to the CPU via three-channel DMA and hardware multiplier (MPY32). The device supports seven low-power modes-LPM0 through LPM4.5-with sub-µA shutdown (0.32 µA) and real-time clock operation in LPM3.5 using external crystal, making it suitable for time-critical, energy-constrained sensing applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit MSP430 CPUXV2 with 24-MHz max clock - enables deterministic real-time control and low-latency interrupt response. |
| Nonvolatile Memory | 8KB FRAM - provides instant-write, 10¹⁵-cycle endurance, radiation resistance, and unified program/data/storage space. |
| RAM | 1KB SRAM - used for stack, variables, and high-speed temporary storage; retains data only in active/LPM0–LPM3. |
| ADC | 10-bit SAR ADC with 12 external + 2 internal channels - supports 200 ksps sampling at 100 µA, ideal for multi-sensor analog front-end consolidation. |
| Low-Power Modes | LPM3.5 (RTC + crystal): 1.5 µA; LPM4.5 (shutdown): 0.32 µA - enables multi-year battery life in periodic wake-up sensor logging. |
| Communication | eUSCI_A0/A1 (UART/IrDA/SPI); eUSCI_B0 (I²C/SPI) - delivers protocol flexibility without external transceivers or level shifters. |
| Package | 40-pin VQFN (RHA), 6 mm × 6 mm - surface-mount compatible with standard reflow profiles and thermal pad grounding to DVSS. |
Pinout & Package
The MSP430FR5733IRHAT is housed in a 40-pin VQFN (RHA) package with 0.4-mm pitch and exposed thermal pad recommended for connection to DVSS. Pin functions are validated per TI SLAS639L Rev. December 2017, Section 4.1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0/TA0.1/DMAE0/RTCCLK/A0*/CD0/VeREF- | Multi-function I/O | Primary RTC calibration output, ADC channel A0 input, comparator CD0, and DMA trigger source - enables time-stamped sensor capture without CPU intervention. |
| PJ.4/XIN & PJ.5/XOUT | Crystal oscillator terminals | Supports 32-kHz crystal for precision RTC operation in LPM3.5 - critical for accurate timekeeping in metering and alarm systems. |
| RST/NMI/SBWTDIO | Reset & debug interface | Single-pin Spy-Bi-Wire (SBW) debug port - allows in-system programming and real-time debugging with minimal PCB footprint. |
| VCORE | Core voltage supply | Internal LDO output (1.8 V) powering CPU and digital logic - decoupling required per datasheet Figure 5-1 to maintain stability under dynamic load. |
| DVCC / DVSS | Digital power rails | Supply (2.0–3.6 V) and ground for digital I/O and core logic - must be filtered separately from AVCC/AVSS to prevent noise coupling into analog subsystems. |
Key Features
| Feature | Design Value |
|---|---|
| FRAM memory architecture | Enables 125-ns word writes and full 8KB programming in 1 ms - eliminates flash erase delays and supports frequent data logging without wear leveling. |
| Built-in ECC and MPU | Hardware error correction and memory protection unit prevent silent data corruption and unauthorized code access - essential for certified industrial firmware. |
| Three-channel DMA | Offloads CPU during ADC conversions, UART transfers, or FRAM writes - reduces active mode time and extends battery life in sensor polling loops. |
| Real-Time Clock with calendar | Retains time/date across LPM3.5 with external 32-kHz crystal - supports scheduled wake-up, timestamped events, and battery-backed timekeeping without external RTC IC. |
| Ultra-low-power analog subsystem | 16-channel comparator with programmable hysteresis and internal reference - enables autonomous threshold detection and wake-on-event without CPU wake-up. |
Applications
| Smart Utility Metering | Wireless Sensor Node |
|---|---|
Use Scenario: Battery-operated electricity/water/gas meters recording consumption every 15 minutes and transmitting via LPWAN. IC Role / Device Role / Timing Role: Main controller managing ADC sampling of shunt/sensor signals, FRAM-based data logging, RTC-triggered wake-up, and SPI/I²C interfacing to RF transceiver. Use Value: 1.5 µA LPM3.5 RTC current and 10¹⁵ FRAM write cycles ensure >10-year field deployment without memory degradation or time drift. | Use Scenario: Remote environmental monitoring node measuring temperature, humidity, and CO₂ using analog sensors and transmitting hourly via BLE or LoRa. IC Role / Device Role / Timing Role: Central MCU handling multi-channel ADC reads, comparator-based wake-on-threshold, FRAM buffering, and UART-to-RF bridge. Use Value: Simultaneous read/write FRAM allows background logging while processing new samples - no blocking wait states during data storage. |
| Industrial Condition Monitoring | Home Automation Hub |
Use Scenario: Vibration and temperature monitoring on motors/pumps with edge analytics and alert generation. IC Role / Device Role / Timing Role: Real-time signal acquisition controller running FFT preprocessing, storing results in FRAM, and triggering alerts via GPIO or UART. Use Value: Hardware multiplier (MPY32) accelerates math-intensive algorithms; 24-MHz clock ensures sub-millisecond response to fault conditions. | Use Scenario: Central gateway aggregating Zigbee/Z-Wave sensor data, performing local rule-based automation, and syncing time across devices. IC Role / Device Role / Timing Role: Time-synchronized hub managing multiple I²C/SPI peripherals, maintaining local clock via RTC, and buffering commands in FRAM during cloud disconnect. Use Value: Integrated RTC with calendar and alarm functions eliminate need for external timekeeping IC - reducing BOM count and PCB area. |
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 |
|---|---|---|---|
| MSP430FR5735IRHAT | 16KB FRAM, same 40-pin RHA package, identical peripheral set - differs only in FRAM capacity and ADC channel count (12 ext + 2 int vs. MSP430FR5733IRHAT's no ADC). | Required where larger nonvolatile program/data storage is needed without changing layout or firmware abstraction layer. | Select when firmware size exceeds 8KB or persistent data logging volume demands >8KB FRAM buffer space. |
| MSP430FR5733IDA | Same FRAM/RAM/peripherals but in 38-pin TSSOP (DA) package - pin-compatible mapping per SLAS639L Figure 4-2; no XIN/XOUT pins on DA package. | Suitable for cost-sensitive, lower-density PCBs where crystal-less operation or simplified layout is acceptable. | Choose for manual assembly or prototyping where TSSOP is preferred; verify RTC functionality uses VLO instead of crystal if XIN/XOUT unavailable. |
Compared with MSP430FR5735IRHAT and MSP430FR5733IDA, the MSP430FR5733IRHAT offers optimal balance of FRAM capacity, crystal-enabled RTC accuracy, and 40-pin I/O count for sensor-rich designs - making it the preferred choice when both precision timing and moderate nonvolatile storage are required in space-constrained VQFN layouts.
Availability
MSP430FR5733IRHAT is available at Aetrix Electronics and suitable for smart utility metering, wireless sensor nodes, and industrial condition monitoring requiring stable component supply, long-lifecycle assurance, and TI-qualified production traceability.
Supply support for MSP430FR5733IRHAT 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, personal electronics, and communications markets.
The MSP430FR573x product line was designed specifically for ultra-low-power sensing and system management in building automation, smart grid infrastructure, and portable industrial instrumentation - leveraging FRAM to eliminate flash endurance limitations in data-logging applications.
FAQ
What is the maximum operating frequency of the MSP430FR5733IRHAT?
The MSP430FR5733IRHAT supports a maximum system clock frequency of 24 MHz, achieved via its factory-trimmed DCO oscillator or external HFXT crystal. This speed enables real-time signal processing and fast peripheral response while maintaining ultra-low-power operation across all active and low-power modes - a key advantage over legacy MSP430 generations limited to 16 MHz.
Does the MSP430FR5733IRHAT include an analog-to-digital converter (ADC)?
No, the MSP430FR5733IRHAT does not include an ADC. Per TI SLAS639L Table 3-1, the MSP430FR5733 variant has "–" listed under ADC10_B column, confirming absence of the 10-bit ADC module. This distinguishes it from MSP430FR5735IRHAT and MSP430FR5739IRHAT, which include 12 external + 2 internal ADC channels.
What package type and dimensions does the MSP430FR5733IRHAT use?
The MSP430FR5733IRHAT uses a 40-pin VQFN package (RHA) measuring 6 mm × 6 mm with 0.4-mm pitch and an exposed thermal pad. This package is specified in TI's SLAS639L datasheet Section 1.3 and Package Option Addendum, and requires solder paste stencil design per JEDEC MO-220 guidelines for reliable thermal and electrical performance.
How much FRAM and RAM memory does the MSP430FR5733IRHAT provide?
The MSP430FR5733IRHAT integrates 8KB of ferroelectric RAM (FRAM) for nonvolatile program, data, and storage use, plus 1KB of volatile SRAM for runtime variables and stack operations. FRAM provides 10¹⁵ write cycles and 125-ns write speed - eliminating flash erase bottlenecks and enabling true EEPROM-like usage without wear leveling in the MSP430FR5733IRHAT.
Can the MSP430FR5733IRHAT operate with a 32-kHz crystal for real-time clock functionality?
Yes, the MSP430FR5733IRHAT supports external 32-kHz crystal operation via PJ.4/XIN and PJ.5/XOUT pins, enabling precise RTC functionality in LPM3.5 mode with typical current consumption of 1.5 µA. This capability is confirmed in SLAS639L Section 4.1 (pin diagram) and Section 5.13 (crystal oscillator specs), and is essential for time-critical applications like utility metering and scheduled sensor wake-up.
MSP430FR5733IRHAT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 40-VFQFN Exposed Pad
- Series:
- MSP430™ FRAM
- Packaging:
- Tape & Reel (TR)
- 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:
- 32
- 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:
- -
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430FR5733IRHAT FAQ
1.How can I place an order for MSP430FR5733IRHAT through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR5733IRHAT 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 MSP430FR5733IRHAT reliable?
The price and inventory of MSP430FR5733IRHAT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR5733IRHAT is usually 5 days.
3.What payment methods are accepted for MSP430FR5733IRHAT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR5733IRHAT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR5733IRHAT?
MSP430FR5733IRHAT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR5733IRHAT 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 MSP430FR5733IRHAT?
For technical support, including MSP430FR5733IRHAT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR5733IRHAT requirements.
6.How does Aetrix verify that MSP430FR5733IRHAT is sourced from the original manufacturer or authorized distributors?
All MSP430FR5733IRHAT 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 MSP430FR5733IRHAT meets industry standards.
7.What is the process for return or replacement of MSP430FR5733IRHAT?
All MSP430FR5733IRHAT units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR5733IRHAT, 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 MSP430FR5733IRHAT part is unused and in its original packaging.
Return procedure for MSP430FR5733IRHAT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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