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Texas Instruments MSP430FR5736IPW
- Part No.:
- MSP430FR5736IPW
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 28-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MSP430FR5736IPW.pdf
- Description:
- IC MCU 16BIT 16KB FRAM 28TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,590
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Product details
Overview
MSP430FR5736IPW from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller featuring 16KB ferroelectric RAM (FRAM), 24-MHz CPU, 10-bit ADC with 12 external channels, 10-channel analog comparator, and dual eUSCI modules supporting UART/IrDA/SPI/I²C. It operates from 2 V to 3.6 V across –40°C to 85°C and targets battery-powered sensor nodes and data acquisition systems.
For engineers reviewing the MSP430FR5736IPW datasheet, MSP430FR5736IPW pinout, MSP430FR5736IPW application, or MSP430FR5736IPW equivalent, key selection criteria include FRAM endurance (10¹⁵ writes), RTC calendar support in LPM3.5 (1.5 µA), integrated LDO, and TSSOP-28 package compatibility with legacy MSP430 designs.
Technical Context
The MSP430FR5736IPW implements a 16-bit RISC CPUXV2 core with hardware multiplier and three-channel DMA, enabling efficient signal processing in low-power modes. Its memory subsystem integrates 16KB FRAM (universal program/data/storage) with built-in ECC and MPU, eliminating flash write delays and wear-out concerns.
Analog subsystem includes a 10-bit, 200-ksps ADC with internal reference and sample-and-hold, plus a 16-channel comparator with programmable hysteresis and voltage reference generation-both fully functional in LPM3 standby mode. Clock system supports DCO (up to 24 MHz), VLO, LFXT (32 kHz crystal), and HFXT for flexible timing architecture.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPUXV2 with 32-bit hardware multiplier and three-channel DMA for deterministic real-time math and data movement |
| FRAM Capacity | 16KB nonvolatile memory with 125 ns/word write speed, 10¹⁵ write-cycle endurance, and zero write latency-enables logging without buffering |
| ADC Performance | 10-bit SAR ADC with 12 external + 2 internal channels, 200 ksps sampling at 100 µA-supports high-throughput sensor interfacing |
| Low-Power Modes | LPM3.5 (RTC active with crystal): 1.5 µA; LPM4.5 (shutdown): 0.32 µA-extends coin-cell battery life to multi-year operation |
| Communication Peripherals | eUSCI_A0/A1: UART/IrDA/SPI; eUSCI_B0: I²C/SPI; all support hardware bootloader (BSL) via UART-enables field firmware updates without external programmer |
| Supply & Temp Range | 2.0 V–3.6 V operation with integrated LDO; –40°C to +85°C industrial temperature grade-suitable for unregulated battery and harsh environments |
Pinout & Package
TSSOP-28 (PW) package: 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 |
|---|---|---|
| P1.0/TA0.1/DMAE0/RTCCLK/A0*/CD0/VeREF- | Multi-function I/O | RTC calibration output, ADC channel A0 input, comparator CD0 input, and DMA trigger source-enables time-stamped sensor capture |
| P1.1/TA0.2/TA1CLK/CDOUT/A1*/CD1/VeREF+ | Multi-function I/O | ADC reference voltage input (VeREF+), comparator output (CDOUT), and timer clock source-supports precision ratiometric measurements |
| P1.4/TB0.1/UCA0STE/A4*/CD4 | Multi-function I/O | Slave transmit enable for eUSCI_A0 SPI, ADC channel A4 input, comparator CD4 input-simplifies daisy-chained sensor interfaces |
| P1.5/TB0.2/UCA0CLK/A5*/CD5 | Multi-function I/O | SPI clock (master/slave), ADC channel A5 input, comparator CD5 input-enables synchronous sensor readout with minimal GPIO count |
| PJ.4/XIN & PJ.5/XOUT | Clock Input/Output | Connects to 32-kHz crystal for RTC accuracy ±20 ppm; required for LPM3.5 operation with calendar functionality |
| RST/NMI/SBWTDIO | Reset & Debug | Single-wire debug interface (SBW) and non-maskable interrupt-allows in-system programming and debugging with two pins |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 16KB unified memory with ECC and MPU enables atomic writes, eliminates flash erase cycles, and supports true EEPROM-like usage without wear leveling |
| Real-Time Clock (RTC) | Calendar mode with alarm, running from 32-kHz crystal in LPM3.5 at 1.5 µA-provides precise timekeeping during ultra-low-power sleep |
| Integrated Power Management | Fully integrated LDO, supply voltage supervisor (SVS), and zero-power brownout detection-reduces BOM count and improves system reliability |
| Hardware Bootloader (BSL) | UART-based BSL accessible via eUSCI_A0 with no external voltage-enables firmware updates over existing communication lines |
| Ultra-Low-Power Analog | 10-bit ADC and 10-channel comparator both operational in LPM3-allows continuous sensor monitoring without waking CPU |
Applications
| Smart Metering Endpoint | Wireless Sensor Node |
|---|---|
Use Scenario: Battery-powered electricity/water meter collecting pulse counts, voltage/current samples, and temperature every 15 minutes. IC Role / Device Role / Timing Role: Main controller executing metrology algorithms, managing FRAM-based data logging, and maintaining RTC calendar for timestamped records. Use Value: 16KB FRAM stores >1 month of 15-minute interval data; LPM3.5 RTC draws only 1.5 µA-enabling 10+ year battery life on CR2032. | Use Scenario: Industrial vibration sensor node using piezoelectric transducer, conditioning signal, and transmitting FFT coefficients wirelessly. IC Role / Device Role / Timing Role: Signal acquisition controller performing ADC sampling, real-time FFT via hardware multiplier, and SPI communication to RF module. Use Value: 200-ksps ADC captures high-frequency transients; 32-bit MPY completes 1024-point FFT in <2 ms-enabling edge analytics without host processor. |
| Home Automation Hub | Portable Data Logger |
Use Scenario: Zigbee/Z-Wave hub aggregating temperature, humidity, and occupancy data from multiple end devices. IC Role / Device Role / Timing Role: Protocol bridge with dual eUSCI peripherals-one handling Zigbee UART, the other managing I²C sensors and local display. Use Value: eUSCI_B0 supports multi-address I²C for up to 8 sensors on single bus; FRAM retains configuration and event logs across power cycles. | Use Scenario: Handheld environmental logger recording CO₂, PM2.5, and ambient light every second for 72 hours. IC Role / Device Role / Timing Role: Standalone data acquisition unit with ADC, comparator thresholds for alarm triggering, and RTC-based scheduling. Use Value: Comparator_D monitors sensor thresholds in LPM3 with 6.3 µA current-wakes CPU only on event, extending runtime beyond 100 hours on AA batteries. |
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 |
|---|---|---|---|
| MSP430FR5738PW | Same 16KB FRAM, 24-MHz CPU, and TSSOP-28 package; differs in ADC channel count (6 ext + 2 int vs. 0 on MSP430FR5736IPW) and comparator inputs (10 vs. 10) | Targeted at simpler analog sensing where full 12-channel ADC is unnecessary; identical power profile and FRAM benefits | Select MSP430FR5738PW when ADC channel count can be reduced without compromising system functionality |
| MSP430FR5969IPM | Successor device with 64KB FRAM, 12-bit ADC (8 ext + 2 int), and enhanced eUSCI; uses 48-pin QFN (PM) package-not pin-compatible | Designed for higher-complexity applications requiring larger code space, richer analog front-end, and USB connectivity | Choose MSP430FR5969IPM for next-generation designs needing scalability, not drop-in replacement |
Compared with MSP430FR5738PW, the MSP430FR5736IPW provides full 12-channel ADC capability essential for multi-sensor systems, while MSP430FR5969IPM offers architectural upgrades but requires PCB redesign-making MSP430FR5736IPW optimal for cost-sensitive, ADC-intensive legacy-compatible designs.
Availability
MSP430FR5736IPW is available at Aetrix Electronics and suitable for smart metering endpoints, wireless sensor nodes, home automation hubs, and portable data loggers requiring stable component supply and long-term industrial availability.
Supply support for MSP430FR5736IPW 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 consumer markets.
The MSP430FR573x product line was designed specifically for ultra-low-power sensing and system management in battery-operated building automation, smart grid, and industrial monitoring applications-leveraging FRAM to eliminate flash limitations.
FAQ
What is the maximum operating frequency of the MSP430FR5736IPW?
The MSP430FR5736IPW supports a maximum system clock frequency of 24 MHz via its factory-trimmed DCO oscillator. This frequency is achievable across the full operating voltage range (2.0 V to 3.6 V) and temperature range (–40°C to +85°C), enabling real-time processing of sensor data without overclocking constraints. The MSP430FR5736IPW maintains timing compliance under all specified conditions per SLAS639L Rev. December 2017.
Does the MSP430FR5736IPW include a hardware real-time clock (RTC)?
Yes, the MSP430FR5736IPW integrates a calendar-mode RTC with alarm functionality that operates in LPM3.5 using a 32-kHz crystal connected to PJ.4/XIN and PJ.5/XOUT. In this mode, it consumes only 1.5 µA typical, supporting timestamped data logging and scheduled wake-up events. The MSP430FR5736IPW RTC includes century, year, month, day, hour, minute, and second registers with leap-year correction.
How many analog-to-digital converter (ADC) channels does the MSP430FR5736IPW support?
The MSP430FR5736IPW features a 10-bit ADC10_B module with 12 external input channels (A0–A11) and 2 internal channels (temperature sensor and VMID). This configuration is confirmed in Table 3-1 of the SLAS639L datasheet for the MSP430FR5736 variant. The MSP430FR5736IPW delivers 200 ksps throughput at 100 µA, supporting high-resolution, low-power sensor acquisition.
Is the MSP430FR5736IPW pin-compatible with other devices in the MSP430FR573x family?
The MSP430FR5736IPW uses the TSSOP-28 (PW) package and shares identical pinout with MSP430FR5734IPW, MSP430FR5732IPW, and MSP430FR5730IPW. However, it is not pin-compatible with RHA (40-pin), DA (38-pin), or RGE (24-pin) variants. Pin compatibility is limited to same-package variants within the FR573x family, as verified in Section 4.5 of SLAS639L.
What development tools are supported for the MSP430FR5736IPW?
The MSP430FR5736IPW is supported by Code Composer Studio™ IDE (free professional edition), MSP-FET430U40A full development kit, and MSP-TS430RHA40A target board. While the MSP-EXP430FR5739 launchpad is optimized for RHA-package devices, it can program the MSP430FR5736IPW via Spy-Bi-Wire using the onboard debugger-confirmed in TI's MSP430FR57xx Family User's Guide and SLAS639L Section 1.1.
MSP430FR5736IPW 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:
- 16KB (16K 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:
MSP430FR5736IPW FAQ
1.How can I place an order for MSP430FR5736IPW through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR5736IPW 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 MSP430FR5736IPW reliable?
The price and inventory of MSP430FR5736IPW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR5736IPW is usually 5 days.
3.What payment methods are accepted for MSP430FR5736IPW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR5736IPW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR5736IPW?
MSP430FR5736IPW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR5736IPW 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 MSP430FR5736IPW?
For technical support, including MSP430FR5736IPW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR5736IPW requirements.
6.How does Aetrix verify that MSP430FR5736IPW is sourced from the original manufacturer or authorized distributors?
All MSP430FR5736IPW 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 MSP430FR5736IPW meets industry standards.
7.What is the process for return or replacement of MSP430FR5736IPW?
All MSP430FR5736IPW units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR5736IPW, 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 MSP430FR5736IPW part is unused and in its original packaging.
Return procedure for MSP430FR5736IPW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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