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Texas Instruments MSP430FR5957IRHAR
- Part No.:
- MSP430FR5957IRHAR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 40-VFQFN Exposed Pad
- Datasheet:
-
MSP430FR5957IRHAR.pdf
- Description:
- IC MCU 16BIT 32KB FRAM 40VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,608
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Product details
Overview
MSP430FR5957IRHAR from Texas Instruments is a 16-bit ultra-low-power FRAM microcontroller with 32KB nonvolatile memory, 1KB RAM, 12-bit ADC (14 external channels), RTC with calendar/alarm, and dual eUSCI modules supporting UART/I²C/SPI. It operates from 1.8 V to 3.6 V and targets energy-constrained sensor nodes and metering systems.
For engineers reviewing the MSP430FR5957IRHAR datasheet, MSP430FR5957IRHAR pinout, MSP430FR5957IRHAR application, or MSP430FR5957IRHAR equivalent, key selection criteria include HFXT oscillator support, 40-pin VQFN package, LPM3.5 current of 0.25 µA, FRAM endurance (10¹⁵ writes), and AES256 encryption coprocessor integration.
Technical Context
The MSP430FR5957IRHAR implements the CPUXV2 16-bit RISC core with 16 MHz max clock, paired with a flexible clock system including DCO, HFXT (up to 24 MHz), and VLO. Its memory architecture unifies FRAM for code, data, and storage-enabling instant write, no erase cycles, and radiation resistance.
Peripherals include three 16-bit timers (TA0/TA1/TB0), 3-channel DMA, 16-channel analog comparator, hardware multiplier (MPY32), CRC16 engine, and capacitive touch I/O on all pins. The device supports UART BSL via P2.0/P2.1 and uses Spy-Bi-Wire for debug.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | CPUXV2 16-bit RISC, up to 16 MHz - enables deterministic real-time control with low cycle count per instruction. |
| FRAM Capacity | 32 KB - provides unified, fast (125 ns/word), high-endurance (10¹⁵ cycles) nonvolatile memory for firmware + logging + configuration. |
| ADC Resolution | 12-bit with 14 external input channels - supports precision sensor interfacing with internal reference and sample-and-hold. |
| Low-Power Mode LPM3.5 | 0.25 µA typical - enables real-time clock operation with calendar/alarm while preserving full RAM and FRAM retention. |
| Supply Voltage Range | 1.8 V to 3.6 V - accommodates coin-cell (2.0–3.0 V) and Li-ion (3.0–3.6 V) power sources without external regulators. |
| Crypto Engine | AES256 coprocessor - accelerates secure firmware updates and encrypted data storage without CPU overhead. |
| Oscillator Support | HFXT only (no LFXT) - requires external 4–24 MHz crystal for high-accuracy timing; RTC_B not available in this variant. |
Pinout & Package
VQFN-40 package (6 mm × 6 mm), thermally enhanced with exposed pad connected to DVSS. Pinout validated per TI SLAS704G Rev. G (2018), Figure 4-4.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0/TA0.1/DMAE0/A0/C0/VREF-/VeREF- | Multi-function I/O | Primary ADC channel A0 input, TA0 capture/compare, DMA trigger source, and negative reference output - enables sensor signal acquisition with hardware-triggered sampling. |
| P1.1/TA0.2/TA1CLK/COUT/A1/C1/VREF+/VeREF+ | Multi-function I/O | ADC channel A1 input, TA0/TA1 timing sync, comparator output, and positive reference output - supports ratiometric measurements and timer synchronization. |
| P2.0/TB0.6/UCA0TXD/UCA0SIMO/TB0CLK/ACLK | UART/SPI/Timer/CLK | Primary UART transmit line (UCA0TXD), SPI master out (UCA0SIMO), TB0 clock source, and ACLK output - simplifies serial communication and clock distribution. |
| P2.1/TB0.0/UCA0RXD/UCA0SOMI/TB0.0 | UART/SPI/Timer | Primary UART receive line (UCA0RXD), SPI master in (UCA0SOMI), and TB0 capture input - enables full-duplex UART and synchronous SPI slave interface. |
| P1.6/TB0.3/UCB0SIMO/UCB0SDA/TA0.0 | I²C/SPI/Timer | I²C data line (UCB0SDA), SPI master out (UCB0SIMO), and TA0 capture input - supports dual-protocol peripheral connectivity with shared pin resources. |
| RST/NMI/SBWTDIO | Reset/Debug | Active-low reset, non-maskable interrupt, and bidirectional Spy-Bi-Wire debug I/O - enables single-wire programming and debugging without JTAG header. |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 32 KB unified memory with 125 ns write speed, zero wait-state execution, and 10¹⁵ write endurance - eliminates flash wear-out and enables frequent data logging. |
| Ultra-Low-Power Operation | LPM3.5 at 0.25 µA with RTC active - extends battery life to years in intermittent-sensing applications like smart meters. |
| Hardware Security | Dedicated AES256 coprocessor with 128/256-bit key support - offloads encryption from CPU, enabling secure OTA updates without performance penalty. |
| Capacitive Touch I/O | All GPIO pins support CTSIO without external components - reduces BOM cost and PCB area for user interface in wearable and IoT devices. |
| Intelligent Peripherals | 3-channel DMA, 32-bit hardware multiplier, and 16-bit CRC engine - enables autonomous sensor data processing, math-intensive algorithms, and error-checked communication. |
Applications
| Smart Utility Metering | Energy-Harvesting Sensor Node |
|---|---|
Use Scenario: Gas/water/electricity meter with tamper detection, pulse counting, and wireless reporting. IC Role / Device Role / Timing Role: Main controller executing metrology algorithms, managing FRAM-based consumption logs, and driving RF transceiver via UART/I²C. Use Value: 32 KB FRAM stores 10+ years of hourly usage data; LPM3.5 enables 10-year battery life with daily wake-up and RTC-triggered reads. | Use Scenario: Solar-powered environmental monitor measuring temperature, humidity, and light intensity. IC Role / Device Role / Timing Role: System-on-chip managing energy harvesting PMIC, ADC sampling, AES-encrypted data packaging, and low-duty-cycle BLE transmission. Use Value: HFXT-driven timing ensures accurate sensor sampling intervals; FRAM withstands infinite write cycles from ambient energy fluctuations. |
| Wearable Health Monitor | Industrial Data Logger |
Use Scenario: Chest-strap ECG/PPG sensor with motion compensation and local anomaly detection. IC Role / Device Role / Timing Role: Real-time signal acquisition frontend with 12-bit ADC, capacitive touch button interface, and FRAM-based ring buffer for waveform storage. Use Value: All-GPIO capacitive touch eliminates dedicated touch IC; 0.25 µA LPM3.5 extends coin-cell life beyond 6 months. | Use Scenario: DIN-rail mounted industrial logger capturing vibration, temperature, and voltage across 14 analog inputs. IC Role / Device Role / Timing Role: Standalone data acquisition unit with RTC timestamping, CRC-protected FRAM storage, and UART-to-USB gateway functionality. Use Value: 14-channel ADC and 32 KB FRAM enable simultaneous multi-sensor logging at 100 Hz for >24 hours without host intervention. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR5959IRHA | 64 KB FRAM, 2 KB RAM, same 40-pin VQFN package and HFXT support. | Requires larger code footprint or extended data logging capacity; identical peripheral set and power profile. | Select when firmware size exceeds 32 KB or long-term FRAM-based event history is required. |
| MSP430FR5947IRHA | 32 KB FRAM, 1 KB RAM, but LFXT-only (no HFXT); lacks RTC_B module. | Suitable for sub-1 MHz timing-critical apps (e.g., basic metering), but cannot support high-accuracy UART baud rates or fast ADC sampling clocks. | Select only if HFXT is unnecessary and lower-cost crystal (32 kHz) suffices for system timing. |
Compared with MSP430FR5959IRHA, the MSP430FR5957IRHAR trades FRAM capacity for cost-sensitive designs, while versus MSP430FR5947IRHA it delivers higher timing precision and UART reliability via integrated HFXT - critical for wireless sensor node synchronization.
Availability
MSP430FR5957IRHAR is available at Aetrix Electronics and suitable for smart utility metering, energy-harvesting sensor nodes, and wearable health monitors requiring stable component supply, long-lifecycle assurance, and TI-qualified production traceability.
Supply support for MSP430FR5957IRHAR 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 delivering analog, embedded processing, and connectivity solutions for industrial, automotive, and consumer markets.
The MSP430FR59xx family is designed for ultra-low-power sensing and measurement applications where FRAM endurance, sub-µA sleep modes, and integrated security accelerate development of battery-operated edge devices.
FAQ
What is the maximum operating frequency of the MSP430FR5957IRHAR?
The MSP430FR5957IRHAR supports a maximum CPU clock frequency of 16 MHz using the integrated DCO or external HFXT oscillator. When using HFXT, the device accepts crystals from 4 MHz to 24 MHz, enabling precise timing for UART, ADC sampling, and real-time control loops without PLL multiplication.
Does the MSP430FR5957IRHAR include a real-time clock (RTC) module?
Yes, the MSP430FR5957IRHAR includes the RTC_B module with calendar and alarm functions. However, because this variant supports HFXT only (no LFXT), the RTC must be clocked by the HFXT-derived clock source - not a 32-kHz crystal. This configuration maintains accuracy but consumes more power than LFXT-based RTC operation.
What package type and pin count does the MSP430FR5957IRHAR use?
The MSP430FR5957IRHAR uses a 40-pin VQFN package (RHA suffix), measuring 6 mm × 6 mm with an exposed thermal pad. This RoHS-compliant, space-efficient package supports automated assembly and provides robust thermal performance for continuous operation in compact enclosures.
Can the MSP430FR5957IRHAR perform capacitive touch sensing without external components?
Yes, the MSP430FR5957IRHAR supports capacitive touch sensing on all GPIO pins using its integrated CTSIO peripheral. No external RC networks or dedicated touch controllers are required - enabling low-cost, low-power touch buttons and sliders in wearables and human-interface devices.
Is the MSP430FR5957IRHAR compatible with the MSP430FR5959IRHA in terms of pinout and software?
Yes, the MSP430FR5957IRHAR and MSP430FR5959IRHA share identical 40-pin VQFN (RHA) packages and fully compatible pinouts. Firmware developed for one can run on the other without modification, though the MSP430FR5959IRHA offers double the FRAM (64 KB) and RAM (2 KB) - allowing seamless scalability within the same hardware design.
MSP430FR5957IRHAR 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:
- 16MHz
- Connectivity:
- I2C, IrDA, SCI, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, DMA, POR, PWM, WDT
- Number of I/O:
- 33
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FRAM
- EEPROM Size:
- -
- RAM Size:
- 1K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 14x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430FR5957IRHAR FAQ
1.How can I place an order for MSP430FR5957IRHAR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR5957IRHAR 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 MSP430FR5957IRHAR reliable?
The price and inventory of MSP430FR5957IRHAR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR5957IRHAR is usually 5 days.
3.What payment methods are accepted for MSP430FR5957IRHAR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR5957IRHAR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR5957IRHAR?
MSP430FR5957IRHAR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR5957IRHAR 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 MSP430FR5957IRHAR?
For technical support, including MSP430FR5957IRHAR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR5957IRHAR requirements.
6.How does Aetrix verify that MSP430FR5957IRHAR is sourced from the original manufacturer or authorized distributors?
All MSP430FR5957IRHAR 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 MSP430FR5957IRHAR meets industry standards.
7.What is the process for return or replacement of MSP430FR5957IRHAR?
All MSP430FR5957IRHAR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR5957IRHAR, 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 MSP430FR5957IRHAR part is unused and in its original packaging.
Return procedure for MSP430FR5957IRHAR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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