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Texas Instruments MSP430FR5727IDAR
- Part No.:
- MSP430FR5727IDAR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 38-TSSOP (0.240", 6.10mm Width)
- Datasheet:
-
MSP430FR5727IDAR.pdf
- Description:
- IC MCU 16BIT 16KB FRAM 38TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,093
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Product details
Overview
MSP430FR5727IDAR from Texas Instruments is a 16-bit ultra-low-power mixed-signal microcontroller featuring 16KB ferroelectric RAM (FRAM), 1KB SRAM, 8-MHz system clock, 16-channel analog comparator, and dual eUSCI modules supporting UART, SPI, and I²C. It operates from 2 V to 3.6 V across –40°C to 85°C and targets battery-powered sensor management and data acquisition systems.
For engineers reviewing the MSP430FR5727IDAR datasheet, MSP430FR5727IDAR pinout, MSP430FR5727IDAR application, or MSP430FR5727IDAR equivalent, key selection criteria include FRAM endurance (10¹⁵ write cycles), RTC with calendar/alarm in LPM3.5 (1.5 µA), active-mode current (81.4 µA/MHz), and RHA package compatibility with 40-pin TSSOP footprint.
Technical Context
The MSP430FR5727IDAR implements the MSP430xV2 CPU core with unified FRAM memory architecture enabling simultaneous code execution and data writes without erase cycles. Its power management includes SVS/BOR with zero-power brownout detection and integrated LDO for stable core voltage regulation.
Peripherals are tightly coupled via three-channel DMA and synchronized to multiple clock domains (MCLK, SMCLK, ACLK). The device supports dual eUSCI_A (UART/IrDA/SPI) and eUSCI_B (I²C/SPI), plus five 16-bit timers (three Timer_A, three Timer_B) with capture/compare capability and hardware PWM generation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU (MSP430xV2) with 8-MHz max clock - enables deterministic real-time control at ultra-low power |
| Nonvolatile Memory | 16KB FRAM - supports 10¹⁵ write cycles, 125 ns/word write speed, ECC protection, and unified program/data storage |
| RAM | 1KB SRAM - used for stack, variables, and high-speed buffering independent of FRAM wear |
| ADC | Not integrated - MSP430FR5727 lacks ADC10_B module per Device Comparison Table 3-1 |
| Comparator | 16-channel Analog Comparator_D with programmable hysteresis and internal reference - enables precision threshold detection without external components |
| Timers | Five 16-bit timers: two Timer_A (3+3 CC registers), three Timer_B (3+3+3 CC registers) - supports multi-channel PWM, input capture, and time-stamped event logging |
| eUSCI Peripherals | eUSCI_A0/A1 (UART/IrDA/SPI) + eUSCI_B0 (I²C/SPI) - provides dual serial interfaces for sensor fusion and host communication with hardware bootloader support |
Pinout & Package
The MSP430FR5727IDAR is packaged in a 40-pin TSSOP (DA package), 12.5 mm × 6.2 mm body size, with exposed thermal pad recommended for connection to DVSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0/TA0.1/DMAE0/RTCCLK/A0*/CD0/VeREF-* | Multi-function I/O | RTC calibration output, DMA trigger source, comparator input CD0 - enables time-critical wake-up and low-power timestamping |
| P1.1/TA0.2/TA1CLK/CDOUT/A1*/CD1/VeREF+* | Multi-function I/O | Comparator output CDOUT, external ADC reference input VeREF+ - supports analog signal conditioning and reference distribution |
| P1.3/TA1.2/UCB0STE/A3*/CD3 | Multi-function I/O | Slave transmit enable for eUSCI_B0 SPI, comparator input CD3 - allows daisy-chained sensor interface with hardware flow control |
| P1.4/TB0.1/UCA0STE/A4*/CD4 | Multi-function I/O | Slave transmit enable for eUSCI_A0 SPI, comparator input CD4 - enables dual-SPI peripheral control with independent chip select logic |
| P1.5/TB0.2/UCA0CLK/A5*/CD5 | Multi-function I/O | SPI clock I/O for eUSCI_A0, comparator input CD5 - supports master/slave clock synchronization and analog monitoring |
| PJ.0/TDO/TB0OUTH/SMCLK/CD6 | Multi-function I/O | JTAG test data output, TB0 PWM high-impedance control, SMCLK output - facilitates debug visibility and PWM safety shutdown |
| PJ.1/TDI/TCLK/TB1OUTH/MCLK/CD7 | Multi-function I/O | JTAG test data/clock input, TB1 PWM high-impedance control, MCLK output - enables boundary scan and clock domain monitoring |
| PJ.2/TMS/TB2OUTH/ACLK/CD8 | Multi-function I/O | JTAG test mode select, TB2 PWM high-impedance control, ACLK output - supports low-frequency timing verification and safe PWM disable |
| PJ.3/TCK/CD9 | Multi-function I/O | JTAG test clock input, comparator input CD9 - provides synchronous debug clock and analog fault detection |
| RST/NMI/SBWTDIO | Reset & Debug | Reset input, non-maskable interrupt, Spy-Bi-Wire bidirectional data - enables robust recovery and single-wire programming in space-constrained layouts |
| TEST/SBWTCK | Debug Control | Spy-Bi-Wire clock input - allows in-system programming without full JTAG header, reducing PCB footprint |
| DVCC / DVSS | Power Supply | Digital core supply (2–3.6 V) and ground - powers CPU, FRAM, and digital peripherals with integrated LDO regulation |
| AVCC / AVSS | Analog Supply | Analog reference supply and ground - powers comparator_D and internal voltage references; must be decoupled separately |
| PJ.4/XIN / PJ.5/XOUT | Clock Input/Output | Crystal oscillator terminals for LFXT (32 kHz) - enables precise RTC operation with crystal accuracy and low-power calendar functions |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 16KB unified memory with 10¹⁵ write endurance and 125 ns write latency - eliminates flash erase delays and wear leveling overhead in logging applications |
| Ultra-Low-Power Modes | LPM3.5 (RTC + crystal): 1.5 µA typical - sustains calendar timekeeping and periodic wake-up for years on coin-cell batteries |
| Hardware Multiplier & DMA | 32-bit MPY + 3-channel DMA - accelerates math-intensive sensor fusion (e.g., FFT, filtering) without CPU intervention |
| Real-Time Clock (RTC) | Calendar mode with alarm, calibration, and tamper-detection inputs - supports time-stamped data acquisition and scheduled firmware updates |
| Memory Protection Unit (MPU) | Configurable read/write/execute permissions per memory region - enforces secure boot and prevents accidental overwrites of critical FRAM segments |
| Integrated Power Management | On-chip LDO, SVS, BOR, and zero-power brownout detection - ensures reliable operation during battery voltage sag without external supervisors |
Applications
| Smart Meter Sensor Node | Industrial Asset Monitor |
|---|---|
Use Scenario: Battery-powered utility meter collecting voltage/current waveforms and temperature at 15-minute intervals. IC Role / Device Role / Timing Role: Main controller executing sensor polling, FRAM-based circular buffer logging, and RTC-triggered transmission bursts. Use Value: 16KB FRAM stores >72 hours of 10-bit sampled data; LPM3.5 draws only 1.5 µA, enabling 10+ year battery life with CR2032. | Use Scenario: Wireless vibration/temperature node mounted on rotating machinery with periodic health reporting. IC Role / Device Role / Timing Role: Edge processor running FFT on accelerometer data, storing spectral signatures in FRAM, and waking every 2 hours for BLE upload. Use Value: Hardware MPY and DMA offload CPU during computation; 10¹⁵ FRAM write cycles ensure >20-year logging reliability under continuous sampling. |
| Home Security Motion Detector | Wireless Environmental Logger |
Use Scenario: PIR-based motion sensor with ambient light and temperature compensation, transmitting alerts via sub-GHz RF. IC Role / Device Role / Timing Role: Low-power state machine managing PIR wake-up, comparator-based light thresholding, and RF transceiver control. Use Value: 16-channel comparator monitors multiple analog sensors simultaneously; standby current of 6.3 µA extends AA battery life beyond 5 years. | Use Scenario: Encapsulated logger recording humidity, CO₂, and barometric pressure in HVAC ducts for building efficiency analysis. IC Role / Device Role / Timing Role: Autonomous data collector using RTC alarms to initiate ADC-less measurements via comparator thresholds and store results in FRAM. Use Value: No ADC required - comparator_D with programmable hysteresis directly digitizes analog sensor outputs, eliminating external signal conditioning. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR5729IDAR | Includes 12-channel 10-bit ADC10_B (200 ksps), 12 external ADC inputs - adds direct analog sensing capability absent in MSP430FR5727IDAR | Required where direct voltage/current measurement is needed without external ADC | Select when analog signal acquisition dominates system requirements and ADC integration reduces BOM cost |
| MSP430FR5725IDAR | Same FRAM/SRAM/timer/peripheral set but with 8KB FRAM instead of 16KB - halved nonvolatile storage capacity | Suitable for simpler firmware or shorter data retention windows | Choose when application firmware size and logging depth fit within 8KB, enabling cost optimization |
Compared with MSP430FR5729IDAR, the MSP430FR5727IDAR omits the ADC but retains full FRAM capacity and comparator count; versus MSP430FR5725IDAR, it doubles FRAM while maintaining identical peripheral functionality and power profile.
Availability
MSP430FR5727IDAR is available at Aetrix Electronics and suitable for smart meter sensor nodes, industrial asset monitors, home security motion detectors, and wireless environmental loggers requiring stable component supply and long-term production continuity.
Supply support for MSP430FR5727IDAR 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 endpoints, and portable instrumentation.
FAQ
Does the MSP430FR5727IDAR include an integrated analog-to-digital converter (ADC)?
No, the MSP430FR5727IDAR does not integrate an ADC. According to Table 3-1 (Device Comparison) in the official datasheet SLASE35C, the MSP430FR5727 variant lists "–" under the ADC10_B column, confirming absence of the 10-bit ADC module. Designers requiring analog digitization must use external ADCs or select variants like MSP430FR5729IDAR that include ADC10_B.
What package type and pin count does the MSP430FR5727IDAR use?
The MSP430FR5727IDAR uses a 40-pin TSSOP package (orderable suffix "DA"), measuring 12.5 mm × 6.2 mm. This matches the DA package option listed in Section 1.4 (Device Information) and Figure 4-2 (Pin Diagram – DA Package) of the SLASE35C datasheet, and is pin-compatible with other DA-package MSP430FR572x devices including MSP430FR5729IDAR and MSP430FR5725IDAR.
How does the FRAM memory in the MSP430FR5727IDAR differ from traditional flash in terms of endurance and write speed?
The MSP430FR5727IDAR's 16KB FRAM offers 10¹⁵ write cycles and 125 ns per word write latency - exceeding flash endurance by 100× and eliminating erase-before-write delays. Unlike flash, FRAM supports byte-level writes without block erasure, enabling efficient data logging and firmware updates directly in active memory without CPU suspension.
Can the MSP430FR5727IDAR operate from a single 3-V coin cell battery over its full temperature range?
Yes, the MSP430FR5727IDAR operates from 2 V to 3.6 V across –40°C to 85°C. At 3 V, its LPM3.5 mode (RTC + 32-kHz crystal) draws just 1.5 µA typical, enabling multi-year operation on standard CR2032 cells. The integrated LDO and zero-power brownout detector maintain functional integrity even as battery voltage declines below 2.2 V.
What debug interfaces are supported by the MSP430FR5727IDAR, and are they accessible in the DA package?
The MSP430FR5727IDAR supports both JTAG and Spy-Bi-Wire (SBW) debug interfaces. All required pins - RST/NMI/SBWTDIO (Pin 1), TEST/SBWTCK (Pin 19), PJ.0/TDO (Pin 11), PJ.1/TDI (Pin 12), PJ.2/TMS (Pin 13), and PJ.3/TCK (Pin 14) - are fully exposed in the 40-pin DA package per Figure 4-2, enabling full-featured debugging and programming without additional adapters.
MSP430FR5727IDAR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 38-TSSOP (0.240", 6.10mm Width)
- Series:
- MSP430™ FRAM
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- MSP430 CPUXV2
- Core Size:
- 16-Bit
- Speed:
- 8MHz
- Connectivity:
- I2C, IrDA, LINbus, SCI, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O:
- 30
- 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:
MSP430FR5727IDAR FAQ
1.How can I place an order for MSP430FR5727IDAR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR5727IDAR 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 MSP430FR5727IDAR reliable?
The price and inventory of MSP430FR5727IDAR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR5727IDAR is usually 5 days.
3.What payment methods are accepted for MSP430FR5727IDAR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR5727IDAR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR5727IDAR?
MSP430FR5727IDAR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR5727IDAR 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 MSP430FR5727IDAR?
For technical support, including MSP430FR5727IDAR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR5727IDAR requirements.
6.How does Aetrix verify that MSP430FR5727IDAR is sourced from the original manufacturer or authorized distributors?
All MSP430FR5727IDAR 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 MSP430FR5727IDAR meets industry standards.
7.What is the process for return or replacement of MSP430FR5727IDAR?
All MSP430FR5727IDAR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR5727IDAR, 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 MSP430FR5727IDAR part is unused and in its original packaging.
Return procedure for MSP430FR5727IDAR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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