My Inquiry
My Account
Texas Instruments MSP430FR5737IRHAT
- Part No.:
- MSP430FR5737IRHAT
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 40-VFQFN Exposed Pad
- Datasheet:
-
MSP430FR5737IRHAT.pdf
- Description:
- IC MCU 16BIT 16KB FRAM 40VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,961
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MSP430FR5737IRHAT from Texas Instruments is a 16-bit ultra-low-power FRAM microcontroller in a 40-pin VQFN (RHA) package, featuring 8 KB FRAM, 1 KB RAM, 12-channel 10-bit ADC, 16-channel analog comparator, dual eUSCI_A (UART/IrDA/SPI) and eUSCI_B (I²C/SPI), and five 16-bit timers - deployed in battery-powered sensor nodes and industrial data loggers requiring nonvolatile memory endurance and sub-µA RTC operation.
For engineers reviewing the MSP430FR5737IRHAT datasheet, MSP430FR5737IRHAT pinout, MSP430FR5737IRHAT application, or MSP430FR5737IRHAT equivalent, key selection criteria include FRAM write cycle endurance (10¹⁵), real-time clock current in LPM3.5 (1.5 µA), ADC sampling rate (200 ksps at 100 µA), and RHA-package I/O count (32 GPIO).
Technical Context
The MSP430FR5737IRHAT implements the MSP430xV2 CPU core with unified FRAM memory space (program + data + storage), integrated LDO power management, and hardware-based memory protection (MPU) with ECC. Its clock system combines factory-trimmed DCO (up to 8 MHz), VLO, LFXT (32 kHz crystal), and HFXT for flexible low-power timing.
Peripherals include three independent DMA channels, 32-bit hardware multiplier, 16-bit CRC engine, RTC with calendar/alarm, and intelligent analog subsystem supporting simultaneous ADC conversion and comparator hysteresis control - all optimized for deterministic wake-up from LPM3/LPM3.5 within 1 µs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| FRAM Capacity | 8 KB - unified nonvolatile memory enabling instant writes, no erase cycles, and 10¹⁵ write endurance for frequent logging without wear leveling. |
| RAM Size | 1 KB - sufficient for real-time stack, ISR context, and buffered sensor data before FRAM commit. |
| ADC Resolution | 10-bit - supports precision analog sensing (e.g., temperature, voltage, current) with internal reference and sample-and-hold. |
| Active Current | 81.4 µA/MHz - enables efficient 8-MHz operation while maintaining <100 µA total active draw for mixed-signal processing. |
| LPM3.5 RTC Current | 1.5 µA - allows continuous timekeeping with external 32-kHz crystal during deep sleep, critical for scheduled wake-up in energy harvesting systems. |
| GPIO Count | 32 - full I/O availability in RHA package, including dedicated analog inputs (A0–A5, A12–A15), comparator channels (CD0–CD15), and peripheral multiplexing. |
| eUSCI Interfaces | 2 × eUSCI_A (UART/IrDA/SPI), 1 × eUSCI_B (I²C/SPI) - supports concurrent wired communication (e.g., UART debug + I²C sensor bus) without software bit-banging. |
Pinout & Package
Package: 40-pin VQFN (RHA), 6 mm × 6 mm, exposed thermal pad (recommended connection to DVSS).
| 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-synchronized sensor sampling. |
| P1.1/TA0.2/TA1CLK/CDOUT/A1*/CD1/VeREF+ | Multi-function I/O | ADC reference voltage input (VeREF+), analog input A1, comparator output, and timer clock source - supports ratiometric sensor measurement. |
| PJ.4/XIN & PJ.5/XOUT | Clock Input/Output | Connects 32-kHz crystal for RTC accuracy; XIN accepts external LF oscillator; XOUT drives crystal load - essential for ±20 ppm real-time timestamping. |
| RST/NMI/SBWTDIO | Reset & Debug | Triple-function pin: device reset, non-maskable interrupt, and Spy-Bi-Wire bidirectional debug I/O - enables in-system programming without JTAG header. |
| VCORE | Core Power Supply | Dedicated regulated core voltage rail (1.8 V typical) - decoupled separately from DVCC to ensure stable CPU/FRAM operation under dynamic load. |
| AVCC / AVSS | Analog Power Domain | Isolated analog supply (2.0–3.6 V) and ground - required for ADC/comparator noise immunity; must be filtered independently from digital rails. |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 8 KB nonvolatile memory with 125 ns word write, zero write latency, and radiation-resistant data retention - eliminates flash erase delays and extends battery life in cyclic logging. |
| Ultra-Low-Power RTC | 1.5 µA operation in LPM3.5 with external 32-kHz crystal - enables precise time-of-day stamping and alarm-driven wake-up without compromising multi-year battery life. |
| Integrated Analog Subsystem | 12-channel 10-bit ADC (200 ksps @ 100 µA) + 16-channel comparator with programmable hysteresis - supports simultaneous threshold detection and high-speed sampling in single-chip sensor front-ends. |
| Hardware Acceleration | 32-bit hardware multiplier and 16-bit CRC engine - accelerates cryptographic checksums, FFT preprocessing, and sensor fusion math without CPU overhead. |
| Power Management | Fully integrated LDO, SVS with reset, and zero-power brownout detection - ensures reliable startup, supply monitoring, and graceful shutdown across 2.0–3.6 V operation. |
Applications
| Smart Metering Node | Wireless Sensor Transmitter |
|---|---|
|
Use Scenario: Battery-powered electricity/water meter collecting pulse counts and voltage/current samples every 15 minutes, storing timestamps and values in nonvolatile memory. IC Role / Device Role / Timing Role: Main controller executing metrology firmware, managing FRAM-based circular buffer, and driving RTC-triggered wake-up and RF transmission. Use Value: 10¹⁵ FRAM write cycles eliminate flash wear-out concerns over 10+ year deployments; 1.5 µA RTC current enables >10-year coin-cell operation. |
Use Scenario: Industrial vibration sensor node measuring accelerometer data, performing on-device peak detection, and transmitting alerts via sub-GHz radio. IC Role / Device Role / Timing Role: Signal acquisition processor running low-power ADC sequences, executing comparator-based event triggers, and synchronizing radio bursts with RTC alarms. Use Value: Simultaneous ADC and comparator operation enables real-time anomaly detection; 81.4 µA/MHz active current keeps average system power below 50 µA. |
| Building Automation Controller | Portable Data Logger |
|
Use Scenario: HVAC zone controller reading temperature/humidity sensors, modulating actuators via PWM, and logging environmental trends locally. IC Role / Device Role / Timing Role: Real-time embedded controller managing I²C sensor interface, PWM fan control, and FRAM-based trend storage with RTC time stamps. Use Value: Dual eUSCI interfaces allow concurrent I²C sensor comms and UART diagnostics; FRAM's instant write prevents data loss during unexpected power loss. |
Use Scenario: Handheld environmental logger recording GPS-tagged air quality readings (CO₂, PM2.5) at user-defined intervals for field analysis. IC Role / Device Role / Timing Role: Host MCU interfacing with UART GPS module, SPI gas sensors, and FRAM storage - coordinated by RTC calendar and alarm functions. Use Value: 32 GPIO support multiple sensor interfaces and push-button UI; 100 µA ADC consumption enables >100 hours of continuous sampling on a single AA battery. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power FRAM microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR5738IRHAT | 16 KB FRAM, same RHA package and peripheral set - differs only in FRAM capacity and part number suffix. | Preferred where larger nonvolatile buffer is needed for extended offline logging without host intervention. | Select MSP430FR5738IRHAT if >8 KB FRAM is required; pinout, code, and power profile are identical. |
| MSP430FR5969IPZ | 64-pin LQFP, 64 KB FRAM, integrated AES accelerator, higher GPIO count (48), but no RTC in LPM3.5 mode (uses LPM3.5 with VLO only). | Better suited for secure wireless edge nodes requiring encryption and more I/O, but consumes 2.5 µA in RTC mode (vs. 1.5 µA). | Choose MSP430FR5969IPZ when security (AES) or expanded I/O is critical; accept higher RTC current and larger footprint. |
Compared with MSP430FR5738IRHAT, the MSP430FR5737IRHAT offers identical architecture and ultra-low-power behavior at lower FRAM density - ideal for cost-sensitive, size-constrained sensor nodes. Against MSP430FR5969IPZ, it trades security and I/O headroom for superior RTC efficiency and smaller RHA footprint.
Availability
MSP430FR5737IRHAT is available at Aetrix Electronics and suitable for smart metering, wireless sensor networks, building automation controllers, and portable data loggers requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for MSP430FR5737IRHAT 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 leader specializing in analog, embedded processing, and connectivity technologies, with decades of expertise in ultra-low-power design and industrial-grade reliability.
The MSP430FR57xx family was engineered specifically for battery-operated sensing and system management applications - combining FRAM's endurance with seven low-power modes to maximize operational lifetime in remote, maintenance-free environments.
FAQ
What is the maximum operating frequency of the MSP430FR5737IRHAT?
The MSP430FR5737IRHAT operates at up to 8 MHz using its factory-trimmed DCO oscillator. This frequency is fully supported across the entire recommended voltage range (2.0 V to 3.6 V) and temperature range (–40°C to 85°C), enabling deterministic real-time execution without external high-frequency crystals in many applications.
Does the MSP430FR5737IRHAT support real-time clock operation with an external 32-kHz crystal?
Yes, the MSP430FR5737IRHAT supports RTC operation with an external 32-kHz crystal connected to PJ.4/XIN and PJ.5/XOUT. In LPM3.5 mode, it draws only 1.5 µA while maintaining calendar and alarm functionality - verified in TI's SLASE35C datasheet Section 5.13.
How much FRAM and RAM does the MSP430FR5737IRHAT include?
The MSP430FR5737IRHAT integrates 8 KB of ferroelectric RAM (FRAM) and 1 KB of SRAM. The FRAM serves as unified nonvolatile memory for code, data, and storage - eliminating separate flash and EEPROM - while the SRAM provides fast volatile working memory for stack and buffers.
Which communication interfaces are available on the MSP430FR5737IRHAT?
The MSP430FR5737IRHAT features two eUSCI_A modules (supporting UART, IrDA, and SPI) and one eUSCI_B module (supporting I²C and SPI). These enable concurrent use - for example, UART for debugging, I²C for sensor communication, and SPI for external FRAM expansion - all with hardware-level protocol handling.
What package type and pin count does the MSP430FR5737IRHAT use?
The MSP430FR5737IRHAT is offered exclusively in the 40-pin VQFN (RHA) package, measuring 6 mm × 6 mm with an exposed thermal pad. This package provides 32 general-purpose I/O pins, full peripheral signal access, and thermal performance suitable for compact, sealed industrial enclosures.
MSP430FR5737IRHAT 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:
- 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:
MSP430FR5737IRHAT FAQ
1.How can I place an order for MSP430FR5737IRHAT through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR5737IRHAT 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 MSP430FR5737IRHAT reliable?
The price and inventory of MSP430FR5737IRHAT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR5737IRHAT is usually 5 days.
3.What payment methods are accepted for MSP430FR5737IRHAT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR5737IRHAT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR5737IRHAT?
MSP430FR5737IRHAT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR5737IRHAT 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 MSP430FR5737IRHAT?
For technical support, including MSP430FR5737IRHAT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR5737IRHAT requirements.
6.How does Aetrix verify that MSP430FR5737IRHAT is sourced from the original manufacturer or authorized distributors?
All MSP430FR5737IRHAT 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 MSP430FR5737IRHAT meets industry standards.
7.What is the process for return or replacement of MSP430FR5737IRHAT?
All MSP430FR5737IRHAT units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR5737IRHAT, 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 MSP430FR5737IRHAT part is unused and in its original packaging.
Return procedure for MSP430FR5737IRHAT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MSP430FR5737IRHAT Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
