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Texas Instruments MSP430FR5859IDAR
- Part No.:
- MSP430FR5859IDAR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 38-TSSOP (0.240", 6.10mm Width)
- Datasheet:
-
MSP430FR5859IDAR.pdf
- Description:
- IC MCU 16BIT 64KB FRAM 38TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,542
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Product details
Overview
MSP430FR5859IDAR from Texas Instruments is a 16-bit ultra-low-power FRAM microcontroller with 64KB nonvolatile memory, 2KB RAM, 12-bit ADC (14 external channels), RTC, and dual eUSCI modules (UART/I²C/SPI). It operates from 1.8 V to 3.6 V and targets battery-powered sensor nodes requiring long-term data retention and low active/standby current.
For engineers reviewing the MSP430FR5859IDAR datasheet, MSP430FR5859IDAR pinout, MSP430FR5859IDAR application, or MSP430FR5859IDAR equivalent, key selection criteria include HFXT oscillator support (not LFXT), 40-pin VQFN package, 33 I/O pins, FRAM endurance (10¹⁵ writes), and real-time clock operation in LPM3.5 at 0.25 µA.
Technical Context
The MSP430FR5859IDAR integrates a 16-bit CPUXV2 core with up to 16 MHz DCO clocking and supports high-frequency crystal (HFXT) up to 24 MHz for precise timing. Its memory subsystem uses ferroelectric RAM (FRAM) - enabling single-cycle writes, unified program/data/storage space, and radiation resistance - eliminating flash write latency and wear-out concerns.
Peripherals include five 16-bit timers (TA0–TA3, TB0), 3-channel DMA, hardware multiplier, CRC16 engine, capacitive touch I/O on all pins, and dual enhanced USCI modules: eUSCI_A0/A1 (UART/IrDA/SPI) and eUSCI_B0 (I²C/SPI). The device lacks LFXT and RTC_B module support per family documentation - confirming RTC functionality requires external 32-kHz crystal only on LFXT-capable variants, not this HFXT-only part.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit CPUXV2, RISC, up to 16 MHz operation |
| FRAM Capacity | 64 KB nonvolatile memory with 10¹⁵ write endurance and 125 ns/word write speed |
| RAM Size | 2 KB SRAM for fast data access and stack operations |
| ADC Resolution | 12-bit SAR ADC with internal reference, 14 external analog inputs, sample-and-hold |
| Supply Voltage | 1.8 V to 3.6 V - enables direct Li-ion/Li-Po battery operation without regulator |
| Low-Power Modes | LPM3.5 (RTC active): 0.25 µA typical; LPM4.5 (shutdown): 0.02 µA typical |
| Oscillator Support | HFXT only (up to 24 MHz); no LFXT or RTC_B - excludes 32-kHz crystal-based RTC |
Pinout & Package
The MSP430FR5859IDAR is housed in a 40-pin VQFN (RHA) package measuring 6 mm × 6 mm with exposed thermal pad. Pin functions are multiplexed across digital I/O, analog inputs, timer capture/compare, USCI signals, and debug interfaces.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0/TA0.1/DMAE0/A0/C0 | General-purpose I/O / Timer A0 CCR1 / DMA trigger / ADC input A0 / Comparator input C0 | Enables wake-up from LPMx.5, analog sensing, and event-triggered DMA transfers |
| P1.1/TA0.2/TA1CLK/A1/C1 | General-purpose I/O / Timer A0 CCR2 / Timer A1 clock source / ADC input A1 / Comparator input C1 | Supports cascaded timer operation and dual analog channel acquisition |
| P1.4/TB0.1/UCA0STE/A4/C4 | General-purpose I/O / Timer B0 CCR1 / eUSCI_A0 SPI slave transmit enable / ADC input A4 / Comparator input C4 | Allows synchronous peripheral control and multi-function pin reuse |
| P1.6/TB0.3/UCB0SIMO/UCB0SDA/TA0.0 | General-purpose I/O / Timer B0 CCR3 / eUSCI_B0 SPI master out / I²C data line / Timer A0 CCR0 | Combines I²C communication, SPI master, and timer output in one pin |
| RST/NMI/SBWTDIO | Reset / Non-maskable interrupt / Spy-Bi-Wire debug I/O | Single-pin debug interface reduces PCB footprint vs. JTAG; supports firmware updates and breakpoints |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 64 KB unified memory with instant write, no erase cycles, and 10¹⁵ endurance - eliminates flash wear leveling and write delays |
| Ultra-Low-Power Operation | 0.25 µA RTC-active mode (LPM3.5) and 0.02 µA shutdown (LPM4.5) extend battery life in energy-harvested sensors |
| Capacitive Touch I/O | All GPIO pins support capacitive touch sensing without external components - reduces BOM cost and board area |
| Dual Enhanced USCI Modules | eUSCI_A0/A1 (UART/IrDA/SPI) + eUSCI_B0 (I²C/SPI) enable simultaneous wired communication protocols |
| Hardware Acceleration | 32-bit hardware multiplier and 16-bit CRC engine offload CPU for math-intensive and data-integrity tasks |
Applications
| Smart Utility Metering | Energy-Harvested Sensor Node |
|---|---|
Use Scenario: Gas/water/electricity meter with tamper detection, pulse counting, and secure data logging. IC Role / Device Role / Timing Role: Main controller executing metrology algorithms, managing FRAM-based log storage, and driving LCD via GPIO. Use Value: 64 KB FRAM retains decades of hourly consumption data without wear-out; 0.25 µA LPM3.5 extends 10-year battery life. | Use Scenario: Wireless environmental sensor (temp/humidity/pressure) powered by solar cell or thermoelectric generator. IC Role / Device Role / Timing Role: System-on-chip managing analog sensing, data preprocessing, and low-duty-cycle RF transmission. Use Value: Unified FRAM simplifies firmware updates and data buffering; capacitive touch I/O enables self-test without added components. |
| Wearable Health Monitor | Industrial Data Logger |
Use Scenario: Compact wearable tracking heart rate, motion, and skin temperature with Bluetooth LE connectivity. IC Role / Device Role / Timing Role: Sensor fusion hub aggregating ADC and GPIO inputs, running real-time filtering, and interfacing with BLE SoC via UART. Use Value: 2 KB RAM supports multi-sensor buffer; 12-bit ADC resolves physiological signal nuances; HFXT ensures precise timing for BLE packet sync. | Use Scenario: Ruggedized field logger capturing vibration, temperature, and voltage in oil/gas or manufacturing equipment. IC Role / Device Role / Timing Role: Standalone data acquisition unit with timestamped FRAM storage, watchdog supervision, and SPI-connected SD card interface. Use Value: Radiation-resistant FRAM prevents data corruption in high-EMI environments; 16 MHz DCO enables fast burst sampling at 100 kSPS. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR5858IRHA | 48 KB FRAM, same 40-pin VQFN package, identical peripheral set and HFXT support | Suitable where reduced code size or lower cost is acceptable without sacrificing I/O count or timing capability | Select when application firmware fits within 48 KB and budget constraints favor smaller memory variant |
| MSP430FR5849IRHA | 64 KB FRAM but LFXT-only (no HFXT), missing high-frequency crystal support and associated timing precision | Applicable only where 32-kHz RTC suffices and 24-MHz system clock is unnecessary | Choose only if design omits HFXT and prioritizes ultra-low-cost crystal solution over high-speed timing |
Compared with MSP430FR5858IRHA, the MSP430FR5859IDAR provides 16 KB more FRAM for larger firmware or extended data logging; versus MSP430FR5849IRHA, it enables precise high-frequency timing critical for UART baud accuracy and sensor sampling synchronization.
Availability
MSP430FR5859IDAR is available at Aetrix Electronics and suitable for smart utility metering, energy-harvested sensor nodes, and industrial data logging requiring stable component supply, long-term FRAM reliability, and ultra-low-power operation.
Supply support for MSP430FR5859IDAR 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 and embedded processing solutions for industrial, automotive, and consumer markets.
The MSP430FR58xx product line delivers ultra-low-power mixed-signal microcontrollers built on FRAM technology, targeting battery-constrained applications demanding nonvolatile memory endurance, rapid write performance, and sub-microamp sleep modes.
FAQ
What is the maximum operating frequency of the MSP430FR5859IDAR?
The MSP430FR5859IDAR supports a maximum system clock frequency of 16 MHz using its digitally controlled oscillator (DCO), and can accept an external high-frequency crystal (HFXT) up to 24 MHz for precise timing-critical applications such as UART communication or high-speed ADC sampling. This HFXT capability distinguishes it from LFXT-only variants in the same family.
Does the MSP430FR5859IDAR include a real-time clock (RTC) module?
The MSP430FR5859IDAR includes the RTC_B peripheral in its silicon, but it requires a 32-kHz low-frequency crystal (LFXT) to operate - which this HFXT-only variant does not support. Therefore, while the RTC_B register map exists, functional RTC operation is not available on the MSP430FR5859IDAR without external clock injection, unlike LFXT-equipped family members.
How many analog input channels does the MSP430FR5859IDAR ADC support?
The MSP430FR5859IDAR integrates a 12-bit ADC12_B module supporting 14 external analog input channels (A0–A13) plus two internal references. This matches the specification confirmed in Table 3-1 of the datasheet and enables simultaneous monitoring of multiple sensors without external multiplexers.
What debug interface does the MSP430FR5859IDAR use?
The MSP430FR5859IDAR uses the 2-wire Spy-Bi-Wire (SBW) interface via the RST/NMI/SBWTDIO and TEST/SBWTCK pins. This compact debug solution replaces full JTAG, reducing PCB routing complexity while supporting full flash programming, breakpoint debugging, and real-time variable inspection during development.
Is the MSP430FR5859IDAR pin-compatible with other devices in the MSP430FR58xx family?
The MSP430FR5859IDAR uses the 40-pin VQFN (RHA) package and shares identical pinout with MSP430FR5858IRHA and MSP430FR5857IRHA. However, it is not pin-compatible with 48-pin RGZ or 38-pin DA variants due to differing package footprints and signal mappings - mechanical and electrical compatibility must be verified per package option.
MSP430FR5859IDAR 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:
- 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:
MSP430FR5859IDAR FAQ
1.How can I place an order for MSP430FR5859IDAR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR5859IDAR 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 MSP430FR5859IDAR reliable?
The price and inventory of MSP430FR5859IDAR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR5859IDAR is usually 5 days.
3.What payment methods are accepted for MSP430FR5859IDAR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR5859IDAR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR5859IDAR?
MSP430FR5859IDAR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR5859IDAR 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 MSP430FR5859IDAR?
For technical support, including MSP430FR5859IDAR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR5859IDAR requirements.
6.How does Aetrix verify that MSP430FR5859IDAR is sourced from the original manufacturer or authorized distributors?
All MSP430FR5859IDAR 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 MSP430FR5859IDAR meets industry standards.
7.What is the process for return or replacement of MSP430FR5859IDAR?
All MSP430FR5859IDAR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR5859IDAR, 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 MSP430FR5859IDAR part is unused and in its original packaging.
Return procedure for MSP430FR5859IDAR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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