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Texas Instruments MSP430FR5959IDA
- Part No.:
- MSP430FR5959IDA
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 38-TSSOP (0.240", 6.10mm Width)
- Datasheet:
-
MSP430FR5959IDA.pdf
- Description:
- IC MCU 16BIT 64KB FRAM 38TSSOP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MSP430FR5959IDA from Texas Instruments is a 16-bit ultra-low-power FRAM microcontroller featuring 64KB nonvolatile FRAM, 2KB RAM, 12-bit ADC with 14 external channels, RTC with calendar/alarm, and dual eUSCI modules (UART/IrDA/SPI + I²C/SPI). It operates from 1.8 V to 3.6 V and targets battery-powered sensor nodes and metering systems requiring long-term data retention without write endurance limits.
For engineers reviewing the MSP430FR5959IDA datasheet, MSP430FR5959IDA pinout, MSP430FR5959IDA application, or MSP430FR5959IDA equivalent, key selection criteria include FRAM write endurance (10¹⁵ cycles), LPM3.5 current (0.25 µA typical), HFXT oscillator support (up to 24 MHz), 38-pin TSSOP package footprint, and integrated AES-256 encryption for secure firmware updates.
Technical Context
The MSP430FR5959IDA implements the CPUXV2 core with 16 registers and supports seven low-power modes optimized for energy harvesting. Its clock system integrates DCO (factory-trimmed at 1–16 MHz), HFXT (for high-frequency timing), and LFXIN/LFXOUT pins disabled - confirming HFXT-only operation per device family specification.
Peripherals include three 16-bit Timer_A modules (TA0/TA1/TA2), one 16-bit Timer_B (TB0) with seven capture/compare registers, 32-bit hardware multiplier, 3-channel DMA, and eUSCI_A0 (UART/IrDA/SPI) + eUSCI_B0 (I²C/SPI). The RTC_B module requires LFXT, which is absent - thus RTC is not functional on this variant.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit CPUXV2 RISC core with 16 registers; enables deterministic real-time execution and low-cycle-count interrupt latency. |
| FRAM Capacity | 64KB unified nonvolatile memory; eliminates flash erase/write delays and supports true byte-level writes at 125 ns/word. |
| ADC Resolution | 12-bit SAR ADC with 14 external input channels; supports simultaneous sampling and internal reference (1.2/2.0/2.5 V). |
| Supply Voltage Range | 1.8 V to 3.6 V; minimum voltage constrained by SVS thresholds - enables direct Li-ion or coin-cell operation without external regulators. |
| LPM3.5 Current | 0.25 µA typical with RTC disabled; confirms ultra-low standby power suitable for multi-year battery life in remote sensors. |
| eUSCI Peripherals | eUSCI_A0 (UART/IrDA/SPI) + eUSCI_B0 (I²C/SPI); provides dual independent serial interfaces for sensor fusion and host communication. |
| AES Engine | 256-bit AES coprocessor with dedicated key storage; accelerates secure boot, OTA updates, and encrypted data logging without CPU overhead. |
Pinout & Package
TSSOP-38 package (12.5 mm × 6.2 mm), lead-free, RoHS-compliant. Pin 1 marked via dot; pin 1 corner located at top-left when notch faces up.
| 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; negative reference output/input - critical for precision analog sensing. |
| P1.1/TA0.2/TA1CLK/COUT/A1/C1/VREF+/VeREF+ | Multi-function I/O | ADC channel A1 input; comparator output; positive reference source - enables ratiometric measurements and self-calibration. |
| P1.4/TB0.1/UCA0STE/A4/C4 | Multi-function I/O | ADC channel A4 input; TB0 capture/compare; SPI slave transmit enable - supports daisy-chained sensor interfaces. |
| P1.5/TB0.2/UCA0CLK/A5/C5 | Multi-function I/O | ADC channel A5 input; TB0 capture/compare; SPI clock - enables synchronous sampling across multiple sensors. |
| P2.0/TB0.6/UCA0TXD/UCA0SIMO/TB0CLK/ACLK | Multi-function I/O | UART TX / SPI master out; TB0 clock source; ACLK output - provides flexible clock distribution and debug interface. |
| P2.1/TB0.0/UCA0RXD/UCA0SOMI/TB0.0 | Multi-function I/O | UART RX / SPI master in; TB0 capture input - essential for bootloader (BSL) over UART and sensor command reception. |
| P2.2/TB0.2/UCB0CLK | Multi-function I/O | I²C/SPI clock for eUSCI_B0 - enables communication with EEPROMs, temperature sensors, or display controllers. |
| P3.4/TB0.3/SMCLK | Multi-function I/O | TB0 capture input; SMCLK output - allows external logic synchronization or clock monitoring. |
| P3.5/TB0.4/COUT | Multi-function I/O | TB0 capture input; comparator output - supports zero-crossing detection and analog event triggering. |
| P3.6/TB0.5 | Multi-function I/O | TB0 capture input - extends timer-based pulse-width measurement capability. |
| P3.7/TB0.6 | Multi-function I/O | TB0 capture input - completes full 7-channel capture capability of TB0 for complex waveform analysis. |
| P1.6/TB0.3/UCB0SIMO/UCB0SDA/TA0.0 | Multi-function I/O | I²C data line / SPI master out; TA0 capture - enables dual-mode communication with smart sensors. |
| P1.7/TB0.4/UCB0SOMI/UCB0SCL/TA1.0 | Multi-function I/O | I²C clock line / SPI master in; TA1 capture - supports standard I²C peripherals and time-stamped event logging. |
| P4.4/TB0.5 | Multi-function I/O | TB0 capture input - adds eighth capture point for extended timing diagnostics. |
| DVSS | Ground | Digital ground reference for core and I/O domains; must be connected to PCB ground plane with low-inductance path. |
| DVCC | Power | Digital supply (1.8–3.6 V); decoupling capacitor (100 nF) required within 1 cm of pin for stable core operation. |
| AVSS | Ground | Analog ground reference for ADC, comparator, and reference circuits; isolated from DVSS to minimize noise coupling. |
| AVCC | Power | Analog supply (1.8–3.6 V); separate from DVCC to preserve ADC SNR; requires dedicated 1-µF ceramic capacitor. |
| PJ.6/HFXIN | Crystal Input | High-frequency crystal input (4–24 MHz); connects to external XTAL; no internal load capacitors - external 12–22 pF required. |
| PJ.7/HFXOUT | Crystal Output | High-frequency crystal output; completes Pierce oscillator loop - must route as matched-length differential pair. |
| RST/NMI/SBWTDIO | Reset/Debug | Active-low reset with NMI capability; bidirectional Spy-Bi-Wire debug I/O - enables in-system programming and real-time trace. |
| TEST/SBWTCK | Debug | Spy-Bi-Wire test clock input; required for JTAG-style debugging and boundary scan - routed to debugger header. |
| P2.3/TA0.0/UCA1STE/A6/C10 | Multi-function I/O | ADC channel A6 input; TA0 capture; eUSCI_A1 slave transmit enable - supports secondary UART/SPI peripheral control. |
| P2.4/TA1.0/UCA1CLK/A7/C11 | Multi-function I/O | ADC channel A7 input; TA1 capture; eUSCI_A1 clock - enables dual serial interfaces for redundant communication paths. |
| P2.5/TB0.0/UCA1TXD/UCA1SIMO | Multi-function I/O | eUSCI_A1 UART TX / SPI master out; TB0 capture - provides second UART for modem or BLE co-processor interface. |
| P2.6/TB0.1/UCA1RXD/UCA1SOMI | Multi-function I/O | eUSCI_A1 UART RX / SPI master in - completes full-duplex secondary serial link. |
| P2.7 | GPIO | Dedicated general-purpose I/O with port interrupt - used for status LEDs, pushbutton inputs, or wake-on-event signals. |
| P3.0–P3.3/A12–A15/C12–C15 | ADC/Comparator | Four additional ADC inputs (A12–A15) and comparator inputs (C12–C15) - expands analog monitoring to 14 total channels. |
| P1.2/TA1.1/TA0CLK/COUT/A2/C2 | Multi-function I/O | ADC channel A2 input; comparator output; TA0/TA1 clock source - supports synchronized timer/ADC triggering. |
| P1.3/TA1.2/UCB0STE/A3/C3 | Multi-function I/O | ADC channel A3 input; I²C/SPI slave transmit enable - enables multi-drop I²C bus control. |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 64KB unified memory with 10¹⁵ write cycles and 125 ns write speed - eliminates flash wear-out concerns in data-logging applications. |
| Ultra-Low-Power Modes | LPM3.5 draws only 0.25 µA (typical) with real-time clock disabled - extends coin-cell battery life beyond 10 years in intermittent-sensing nodes. |
| Integrated Security | Hardware AES-256 engine with dedicated key memory - enables secure firmware authentication and encrypted sensor data storage without software overhead. |
| Capacitive Touch I/O | All GPIO pins support capacitive touch sensing without external components - reduces BOM cost and board space in wearable HMI designs. |
| Intelligent Peripherals | 32-bit hardware multiplier, 3-channel DMA, and CRC16 engine - offloads math-intensive tasks (e.g., FFT, checksum) from CPU to extend active-mode efficiency. |
| Flexible Clock System | DCO (1–16 MHz factory-trimmed), HFXT (4–24 MHz), and VLO (10 kHz) - enables precise timing control across operating modes without external crystals for basic functions. |
Applications
| Smart Metering | Energy-Harvesting Sensor Nodes |
|---|---|
Use Scenario: Electricity, gas, or water meter with tamper detection, pulse counting, and wireless reporting. IC Role / Device Role / Timing Role: Main controller executing metrology algorithms, managing RF transceiver sleep/wake cycles, and timestamping consumption events. Use Value: FRAM enables reliable, high-frequency energy pulse logging (e.g., 10k pulses/hour) without flash wear-out; LPM3.5 current ensures >15-year battery life. | Use Scenario: Wireless environmental sensor (temperature/humidity/pressure) powered by solar cell or thermoelectric generator. IC Role / Device Role / Timing Role: System-on-chip managing energy harvesting PMIC, analog front-end, data compression, and BLE/Wi-Fi transmission scheduling. Use Value: Unified FRAM simplifies firmware updates under intermittent power; AES-256 secures OTA patches; 1.8 V operation matches harvester output range. |
| Wearable Health Monitors | Data Logging for Industrial IoT |
Use Scenario: ECG/PPG patch collecting biometric data continuously for 7+ days before sync. IC Role / Device Role / Timing Role: Analog signal acquisition hub with ADC oversampling, motion artifact filtering, and local data buffering. Use Value: 14-channel ADC supports multi-lead ECG + accelerometer; capacitive touch I/O enables gesture-based UI; FRAM withstands 100M+ daily writes. | Use Scenario: Vibration, temperature, or corrosion monitor on rotating machinery with 10-year deployment requirement. IC Role / Device Role / Timing Role: Standalone logger capturing timestamped analog waveforms and storing them securely until retrieval. Use Value: 64KB FRAM stores >1 million 12-bit samples; CRC16 ensures data integrity; LPM4.5 (20 nA) preserves memory during long idle periods. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR5959IRHA | 40-pin VQFN (6 mm × 6 mm) vs. 38-pin TSSOP; identical FRAM/RAM/peripherals; same HFXT support. | Requires PCB redesign for QFN thermal pad and smaller footprint; better thermal performance but higher assembly cost. | Select for space-constrained designs needing improved thermal dissipation; avoid if legacy TSSOP layout must be preserved. |
| MSP430FR5949IRHA | LFXT-only (no HFXIN/HFXOUT pins); 33 I/O vs. 31; same FRAM/RAM; lacks HFXT oscillator circuitry. | Cannot support >16 MHz system clocks or high-speed serial protocols requiring precise timing; limited to sub-16 MHz operation. | Select only for cost-sensitive, low-clock-rate applications where HFXT is unnecessary; verify timing margins for UART/I²C baud rates. |
Compared with MSP430FR5959IRHA, the MSP430FR5959IDA offers identical functionality in a through-hole-compatible TSSOP package ideal for prototyping and low-volume production, while MSP430FR5949IRHA trades HFXT capability for lower cost and reduced pin count - making it unsuitable for high-speed communication or precise timing-critical systems.
Availability
MSP430FR5959IDA is available at Aetrix Electronics and suitable for smart metering, energy-harvesting sensor nodes, and wearable electronics requiring stable component supply and long-term lifecycle support.
Supply support for MSP430FR5959IDA 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 personal electronics markets.
The MSP430 ULP FRAM portfolio targets ultra-low-power sensing and measurement applications, combining ferroelectric memory with intelligent peripherals to eliminate flash limitations in battery- and energy-harvesting systems.
FAQ
What is the maximum operating frequency supported by the MSP430FR5959IDA?
The MSP430FR5959IDA supports a maximum system clock frequency of 16 MHz via its factory-trimmed DCO or up to 24 MHz using the external HFXT oscillator. The HFXT pins (PJ.6/HFXIN and PJ.7/HFXOUT) are present and functional on this variant, enabling high-speed UART, SPI, and I²C communication without CPU clock scaling penalties. This makes the MSP430FR5959IDA suitable for real-time sensor fusion and protocol bridging applications.
Does the MSP430FR5959IDA include a real-time clock (RTC) module?
No, the MSP430FR5959IDA does not support the RTC_B module. Although the device datasheet lists RTCCLK as an alternate function on P1.0, the RTC_B peripheral requires the LFXT oscillator (LFXIN/LFXOUT), which is omitted from HFXT-only variants like the MSP430FR5959IDA. The functional block diagram and device comparison table confirm RTC_B is unavailable in MSP430FR595x devices - only MSP430FR596x and MSP430FR594x families include LFXT and RTC_B.
How many ADC input channels does the MSP430FR5959IDA support?
The MSP430FR5959IDA supports 14 external analog input channels (A0–A15 excluding A6 and A7, which are multiplexed on P2.3/P2.4) plus two internal references (temperature sensor and VREF). The ADC12_B module is fully functional with sample-and-hold, programmable conversion sequences, and internal 1.2/2.0/2.5 V references - enabling precision metrology and multi-sensor monitoring without external signal conditioning.
Is the MSP430FR5959IDA pin-compatible with other MSP430FR59xx devices in TSSOP-38 packages?
Yes, the MSP430FR5959IDA shares identical pinout and electrical characteristics with MSP430FR5948IDA and MSP430FR5947IDA in the 38-pin DA package. All three variants use the same TSSOP-38 footprint, pin numbering, and I/O functionality mapping - allowing drop-in replacement in existing designs when migrating between FRAM sizes (64KB/48KB/32KB) and RAM configurations (2KB/1KB), provided HFXT requirements are met.
What debug interface does the MSP430FR5959IDA support?
The MSP430FR5959IDA supports Spy-Bi-Wire (SBW) debug via RST/NMI/SBWTDIO (pin 20) and TEST/SBWTCK (pin 19), compatible with TI's MSP-FET and LaunchPad development tools. It does not support full 4-wire JTAG. SBW enables full-speed debugging, flash programming, and real-time trace using only two pins - reducing debug footprint and preserving I/O for application use in space-constrained designs.
MSP430FR5959IDA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 38-TSSOP (0.240", 6.10mm Width)
- Series:
- MSP430™ FRAM
- Packaging:
- Tube
- 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:
- 64KB (64K x 8)
- Program Memory Type:
- FRAM
- EEPROM Size:
- -
- RAM Size:
- 2K 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:
MSP430FR5959IDA FAQ
1.How can I place an order for MSP430FR5959IDA through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR5959IDA 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 MSP430FR5959IDA reliable?
The price and inventory of MSP430FR5959IDA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR5959IDA is usually 5 days.
3.What payment methods are accepted for MSP430FR5959IDA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR5959IDA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR5959IDA?
MSP430FR5959IDA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR5959IDA 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 MSP430FR5959IDA?
For technical support, including MSP430FR5959IDA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR5959IDA requirements.
6.How does Aetrix verify that MSP430FR5959IDA is sourced from the original manufacturer or authorized distributors?
All MSP430FR5959IDA 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 MSP430FR5959IDA meets industry standards.
7.What is the process for return or replacement of MSP430FR5959IDA?
All MSP430FR5959IDA units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR5959IDA, 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 MSP430FR5959IDA part is unused and in its original packaging.
Return procedure for MSP430FR5959IDA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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