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Texas Instruments MSP430FR5957IDAR
- Part No.:
- MSP430FR5957IDAR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 38-TSSOP (0.240", 6.10mm Width)
- Datasheet:
-
MSP430FR5957IDAR.pdf
- Description:
- IC MCU 16BIT 32KB FRAM 38TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,879
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Product details
Overview
MSP430FR5957IDAR from Texas Instruments is a 16-bit ultra-low-power FRAM microcontroller with 32KB nonvolatile memory, 1KB RAM, and integrated peripherals including 12-bit ADC (14 external channels), RTC, AES-256 encryption, and dual eUSCI modules (UART/I²C/SPI). It operates from 1.8 V to 3.6 V and targets energy-constrained sensor nodes and metering applications.
For engineers reviewing the MSP430FR5957IDAR datasheet, MSP430FR5957IDAR pinout, MSP430FR5957IDAR application, or MSP430FR5957IDAR equivalent, key selection criteria include FRAM endurance (10¹⁵ writes), LPM3.5 current (0.25 µA typical), HFXT oscillator support, 40-pin TSSOP package, and UART/I²C bootloader compatibility.
Technical Context
The MSP430FR5957IDAR implements the CPUXV2 core with 16 registers and supports seven low-power modes, including LPM3.5 (RTC active) and LPM4.5 (shutdown at 0.02 µA). Its clock system integrates DCO, HFXT (up to 16 MHz), and internal VLO - but excludes LFXT and RTC_B, as confirmed for MSP430FR5x5x devices with HFXT-only configuration.
Peripherals include three 16-bit Timer_A instances (3/3/2 capture/compare registers), one 16-bit Timer_B (7 registers), 32-bit hardware multiplier, 3-channel DMA, and capacitive touch I/O on all pins without external components. The device uses unified FRAM memory space for code, data, and storage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit CPUXV2 RISC, up to 16 MHz operation |
| FRAM Capacity | 32 KB nonvolatile memory with 10¹⁵ write endurance and 125 ns/word write speed |
| RAM Size | 1 KB SRAM for volatile data and stack operations |
| ADC Resolution | 12-bit SAR ADC with 14 external input channels and internal reference |
| Low-Power Mode LPM3.5 | 0.25 µA typical current draw with RTC running from 32-kHz source |
| Supply Voltage Range | 1.8 V to 3.6 V - minimum limited by SVS thresholds, not absolute rail |
| Crypto Engine | Hardware AES-256 coprocessor supporting encryption/decryption and random number seeding |
Pinout & Package
Package: TSSOP-38 (38-pin thin shrink small outline package), body size 12.5 mm × 6.2 mm, lead pitch 0.65 mm. Pin 1 marked via dot or bevel; thermal pad not present in DA package.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0/TA0.1/DMAE0/A0/C0/VREF-/VeREF- | Multi-function I/O | ADC channel A0 input, comparator C0, TA0 capture/compare, DMA trigger, negative reference output/input |
| P1.1/TA0.2/TA1CLK/COUT/A1/C1/VREF+/VeREF+ | Multi-function I/O | ADC channel A1 input, comparator C1 output, TA0/TA1 timing, positive reference output/input |
| P3.0–P3.3/A12–A15/C12–C15 | Analog I/O | Four dedicated ADC inputs (A12–A15) and comparator inputs (C12–C15) |
| P1.3/TA1.2/UCB0STE/A3/C3 | Peripheral I/O | ADC channel A3, comparator C3, TA1 capture/compare, eUSCI_B0 SPI slave transmit enable |
| P1.4/TB0.1/UCA0STE/A4/C4 | Peripheral I/O | ADC channel A4, comparator C4, TB0 capture/compare, eUSCI_A0 SPI slave transmit enable |
| P1.5/TB0.2/UCA0CLK/A5/C5 | Peripheral I/O | ADC channel A5, comparator C5, TB0 capture/compare, eUSCI_A0 SPI clock (master out/slave in) |
| RST/NMI/SBWTDIO | Control Terminal | Reset input, non-maskable interrupt, Spy-Bi-Wire debug I/O (2-wire JTAG) |
| TEST/SBWTCK | Debug Terminal | Spy-Bi-Wire test clock input for programming and debugging |
| DVCC / DVSS | Power Supply | Digital supply (DVCC) and ground (DVSS) pins - decoupling required per layout guidelines |
| AVCC / AVSS | Analog Supply | Analog supply (AVCC) and ground (AVSS) - separate from digital rails for noise isolation |
| PJ.6/HFXIN & PJ.7/HFXOUT | Oscillator Interface | High-frequency crystal connections (4–24 MHz) - mandatory for HFXT operation |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 32 KB unified memory enabling instant write, zero-write-delay logging, and 10¹⁵ endurance - eliminates flash wear-out concerns in data-logging systems |
| Ultra-Low-Power Operation | LPM3.5 draws only 0.25 µA with RTC active, enabling multi-year battery life in energy-harvested sensor nodes |
| Hardware Security | AES-256 encryption engine accelerates secure firmware updates and encrypted data storage without CPU overhead |
| Capacitive Touch I/O | All GPIO pins support capacitive touch sensing with no external RC components - reduces BOM cost and PCB area |
| Flexible Clock System | Factory-trimmed DCO (10 frequencies), HFXT support (4–24 MHz), and VLO enable precise timing across operating conditions without external crystals in many use cases |
Applications
| Metering | Energy-Harvested Sensor Nodes |
|---|---|
Use Scenario: Smart water/gas meters requiring long-term data retention and tamper-resistant firmware. IC Role / Device Role / Timing Role: Main controller executing metrology algorithms, storing calibration data in FRAM, and managing secure communication via UART/I²C. Use Value: 32 KB FRAM enables decade-long interval logging without wear degradation; AES-256 secures firmware updates against unauthorized modification. | Use Scenario: Wireless environmental sensors powered by solar cells or thermal harvesters with intermittent power. IC Role / Device Role / Timing Role: System-on-chip managing analog sensor acquisition, low-power sleep scheduling, and burst-mode RF transmission. Use Value: LPM4.5 current of 0.02 µA minimizes quiescent drain; fast FRAM writes capture sensor data instantly during power-up events. |
| Wearable Electronics | Sensor Management |
Use Scenario: Compact fitness trackers monitoring heart rate, motion, and temperature with strict size and battery constraints. IC Role / Device Role / Timing Role: Central MCU handling biometric signal conditioning, real-time activity classification, and Bluetooth LE interface control. Use Value: All-GPIO capacitive touch enables buttonless UI; 1.8 V minimum supply extends usable battery range in coin-cell designs. | Use Scenario: Industrial condition-monitoring nodes aggregating vibration, temperature, and humidity data from multiple transducers. IC Role / Device Role / Timing Role: Data concentrator performing timestamped ADC sampling, CRC-16 integrity checks, and local preprocessing before wireless upload. Use Value: Integrated 16-bit CRC module offloads checksum computation; 12-bit ADC with internal reference ensures consistent measurement accuracy across temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR5958IDAR | 48 KB FRAM, 2 KB RAM, same package and peripheral set | Higher memory headroom for larger firmware or extended data buffers | Select when firmware size exceeds 32 KB or additional RAM is needed for complex algorithms |
| MSP430FR5947IDAR | 32 KB FRAM, 1 KB RAM, LFXT-only (no HFXIN/HFXOUT pins), 38-pin DA package | Lower-cost crystal option (32 kHz only); no high-frequency timing capability | Select for cost-sensitive, low-speed timing applications where HFXT is unnecessary |
Compared with MSP430FR5958IDAR, the MSP430FR5957IDAR trades FRAM capacity for lower unit cost while retaining identical peripheral functionality and power profile; versus MSP430FR5947IDAR, it adds HFXT support enabling higher-speed communication and precise timebase generation - critical for synchronized sensor networks.
Availability
MSP430FR5957IDAR is available at Aetrix Electronics and suitable for metering, energy-harvested sensor nodes, and wearable electronics requiring stable component supply, long-lifecycle support, and traceable sourcing.
Supply support for MSP430FR5957IDAR 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, with leadership in low-power microcontrollers and precision analog products.
The MSP430FR59xx family is designed for ultra-low-power sensing and measurement applications, combining FRAM nonvolatility with intelligent peripherals to extend battery life and simplify firmware design in resource-constrained environments.
FAQ
Does the MSP430FR5957IDAR support real-time clock (RTC) functionality?
Yes, the MSP430FR5957IDAR includes an RTC_B module that operates in LPM3.5 mode with 0.25 µA typical current draw. It requires connection to an external 32-kHz crystal on PJ.4/LFXIN and PJ.5/LFXOUT - however, note that this device variant uses HFXT only and does not include LFXT oscillator circuitry. Therefore, RTC_B is not functional unless an external 32-kHz clock source is provided to the LFXIN pin, and the device must be configured accordingly per the User's Guide.
What is the maximum operating frequency of the MSP430FR5957IDAR?
The MSP430FR5957IDAR supports up to 16 MHz system clock frequency using the high-frequency crystal oscillator (HFXT) connected to PJ.6/HFXIN and PJ.7/HFXOUT. The factory-trimmed DCO also provides up to 16 MHz operation without external crystals, though with reduced accuracy. This maximum frequency applies to both active-mode execution and peripheral timing such as UART baud generation and ADC sampling rates.
Can the MSP430FR5957IDAR perform capacitive touch sensing without external components?
Yes, the MSP430FR5957IDAR supports capacitive touch sensing on all GPIO pins without requiring external resistors or capacitors. This capability is implemented in hardware via the built-in capacitive touch I/O module, which uses charge-transfer techniques and integrated comparators. Developers can configure any port pin as a touch electrode using the driver library, enabling button, slider, or wheel interfaces with minimal external BOM impact.
Is the MSP430FR5957IDAR pin-compatible with other devices in the MSP430FR59xx family?
No, the MSP430FR5957IDAR in the 38-pin TSSOP (DA) package is not pin-compatible with 40-pin RHA or 48-pin RGZ variants. While functional signals overlap across the family, pin assignments differ significantly - for example, HFXIN/HFXOUT appear on PJ.6/PJ.7 in DA packages but on different positions in RHA. Migration requires PCB layout revision; software porting is feasible due to architectural consistency.
What bootloader interfaces are supported by the MSP430FR5957IDAR?
The MSP430FR5957IDAR supports both UART-based and I²C-based hardware bootloaders (BSL). UART BSL uses P2.0 (BSLTX) and P2.1 (BSLRX); I²C BSL uses P1.6 (BSLSDA) and P1.7 (BSLSCL). The BSL is pre-programmed in ROM and enables field firmware updates without JTAG debug hardware. Activation requires specific reset sequences and security key handshakes, and it remains accessible even after code protection is enabled.
MSP430FR5957IDAR 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:
- 16MHz
- Connectivity:
- I2C, IrDA, SCI, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, DMA, POR, PWM, WDT
- Number of I/O:
- 31
- 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 12x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430FR5957IDAR FAQ
1.How can I place an order for MSP430FR5957IDAR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR5957IDAR 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 MSP430FR5957IDAR reliable?
The price and inventory of MSP430FR5957IDAR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR5957IDAR is usually 5 days.
3.What payment methods are accepted for MSP430FR5957IDAR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR5957IDAR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR5957IDAR?
MSP430FR5957IDAR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR5957IDAR 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 MSP430FR5957IDAR?
For technical support, including MSP430FR5957IDAR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR5957IDAR requirements.
6.How does Aetrix verify that MSP430FR5957IDAR is sourced from the original manufacturer or authorized distributors?
All MSP430FR5957IDAR 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 MSP430FR5957IDAR meets industry standards.
7.What is the process for return or replacement of MSP430FR5957IDAR?
All MSP430FR5957IDAR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR5957IDAR, 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 MSP430FR5957IDAR part is unused and in its original packaging.
Return procedure for MSP430FR5957IDAR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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