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Texas Instruments MSP430FR5858IDAR
- Part No.:
- MSP430FR5858IDAR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 38-TSSOP (0.240", 6.10mm Width)
- Datasheet:
-
MSP430FR5858IDAR.pdf
- Description:
- IC MCU 16BIT 48KB FRAM 38TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,263
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Product details
Overview
MSP430FR5858IDAR from Texas Instruments is a 16-bit ultra-low-power FRAM microcontroller with 48KB nonvolatile memory, 2KB RAM, 12-bit ADC (14 external channels), RTC with calendar/alarm, and dual eUSCI modules supporting UART/IrDA/SPI/I²C. It operates from 1.8 V to 3.6 V and targets energy-constrained sensor nodes and metering systems.
For engineers reviewing the MSP430FR5858IDAR datasheet, MSP430FR5858IDAR pinout, MSP430FR5858IDAR application, or MSP430FR5858IDAR equivalent, key selection factors include FRAM endurance (10¹⁵ writes), LPM3.5 current (0.25 µA typical), HFXT oscillator support, TSSOP-38 package compatibility, and integrated capacitive touch I/O without external components.
Technical Context
The MSP430FR5858IDAR implements the CPUXV2 16-bit RISC core with 16 MHz max clock, paired with a flexible clock system including DCO (10 factory-trimmed frequencies), HFXT (high-frequency crystal), and SVS brownout protection. Its memory architecture unifies FRAM for code, data, and storage - eliminating separate flash/EEPROM partitions.
Peripherals include five 16-bit timers (TA0–TA3, TB0), 3-channel DMA, 16-channel analog comparator, hardware CRC16, and eUSCI_A0/A1 (UART/IrDA/SPI) plus eUSCI_B0 (I²C/SPI). The device supports UART-based BSL and features programmable pullup/pulldown on all I/O pins.
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 | 48 KB nonvolatile memory - supports instant write, unlimited endurance, and unified program/data/storage space. |
| ADC Resolution | 12-bit SAR with 14 external input channels - provides precision analog sensing for battery-powered metering. |
| Low-Power Mode LPM3.5 | 0.25 µA typical (RTC active) - enables years of operation on coin-cell batteries in data-logging applications. |
| Supply Voltage Range | 1.8 V to 3.6 V - compatible with single-cell Li-ion, 2xAA, or regulated 3.3 V rails without level-shifting. |
| Package Type | TSSOP-38 (12.5 mm × 6.2 mm) - surface-mount footprint suitable for compact industrial and wearable PCBs. |
| Oscillator Support | HFXT only (no LFXT) - requires external high-frequency crystal (e.g., 4–24 MHz) for precise timing and USB-synchronous communication. |
Pinout & Package
TSSOP-38 package with 38-pin leaded surface-mount footprint; thermal pad not present; JEDEC standard outline; RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0/TA0.1/DMAE0/RTCCLK/A0/C0/VREF-/VeREF- | Multi-function I/O | Primary RTC clock output, ADC channel A0 input, comparator C0, and negative reference source - critical for time-stamped sensor acquisition. |
| P1.1/TA0.2/TA1CLK/COUT/A1/C1/VREF+/VeREF+ | Multi-function I/O | Positive reference voltage source, ADC A1 input, timer clock input, and comparator output - enables ratiometric measurements and internal reference calibration. |
| P2.0/TB0.6/UCA0TXD/UCA0SIMO/TB0CLK/ACLK | Serial interface / Timer / Clock | Primary UART TX line, SPI master out, and ACLK output - used for debug logging, host communication, and low-frequency system clock distribution. |
| P2.1/TB0.0/UCA0RXD/UCA0SOMI/TB0.0 | Serial interface / Timer | Primary UART RX line and SPI master in - forms full-duplex UART link with automatic baud-rate detection for robust field firmware updates. |
| RST/NMI/SBWTDIO | Reset / Debug | Unified reset and JTAG/SBW debug I/O - enables in-system programming and real-time debugging without dedicated debug headers. |
| P1.6/TB0.3/UCB0SIMO/UCB0SDA/TA0.0 | I²C / SPI / Timer | BSL I²C SDA line and TA0 capture input - supports secure bootloader access over I²C and event-triggered timing capture. |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 48 KB unified nonvolatile memory with 125 ns write speed and 10¹⁵ write-cycle endurance - eliminates wear leveling and enables true EEPROM-style logging at SRAM speed. |
| Capacitive Touch I/O | All GPIO pins support capacitive touch sensing without external RC networks - reduces BOM cost and board area for human-interface designs like smart meters and wearables. |
| Hardware CRC16 Engine | Dedicated peripheral computes checksums in parallel with CPU execution - ensures data integrity for FRAM-resident firmware and sensor logs without software overhead. |
| EnergyTrace++™ Integration | Real-time current profiling down to µA resolution via Spy-Bi-Wire - accelerates ultra-low-power optimization for battery life-critical applications. |
| UART Bootloader (BSL) | Factory-programmed ROM bootloader accessible via P2.0/P2.1 - enables field firmware updates over existing serial interfaces without JTAG hardware. |
Applications
| Smart Utility Metering | Energy-Harvesting Sensor Node |
|---|---|
Use Scenario: Electricity/water/gas meter with tamper detection, pulse counting, and hourly consumption logging. IC Role / Device Role / Timing Role: Main controller executing metrology algorithms, managing FRAM-based log buffers, and driving LCD/IR communication. Use Value: 48 KB FRAM stores >1 year of 15-minute interval data; LPM3.5 (0.25 µA) extends battery life beyond 10 years with primary cell. | Use Scenario: Wireless environmental sensor node powered by solar cell or thermoelectric generator. IC Role / Device Role / Timing Role: System-on-chip managing ADC sampling, data compression, RF wake-up, and intermittent transmission. Use Value: Unified FRAM simplifies power-fail-safe logging; capacitive touch I/O enables maintenance-free buttonless UI; HFXT ensures accurate timestamping for synchronized mesh networks. |
| Wearable Health Monitor | Industrial Data Logger |
Use Scenario: Compact wrist-worn device measuring heart rate, skin temperature, and motion via analog sensors. IC Role / Device Role / Timing Role: Signal acquisition hub with analog front-end control, real-time activity classification, and Bluetooth LE interface coordination. Use Value: 12-bit ADC resolves sub-degree temperature changes; 2KB RAM buffers raw sensor streams; FRAM retains calibration coefficients across reboots without delay. | Use Scenario: DIN-rail mounted logger capturing vibration, temperature, and humidity in factory equipment. IC Role / Device Role / Timing Role: Standalone data acquisition engine with RTC-triggered sampling, SD card interface, and isolated RS-485 communication. Use Value: HFXT support enables precise 1 ppm timing for FFT-based vibration analysis; eUSCI_B0 drives I²C temperature/humidity sensors; FRAM withstands wide-temperature industrial cycling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR5859IDAR | 64 KB FRAM, same TSSOP-38 package, identical peripherals and pinout. | Higher memory capacity required for larger firmware or extended data buffering. | Select when >48 KB nonvolatile storage is needed without changing PCB layout. |
| MSP430FR5858IRHAT | VQFN-40 package (6 mm × 6 mm), adds HFXIN/HFXOUT pins but removes P4.x analog inputs. | Space-constrained designs requiring smaller footprint and HFXT support, with reduced analog channel count. | Choose for compact PCBs where 38-pin TSSOP is too large and 14 ADC channels suffice. |
Compared with MSP430FR5859IDAR, the MSP430FR5858IDAR trades 16 KB FRAM for lower cost and identical power/performance; versus MSP430FR5858IRHAT, it offers larger analog I/O count in a leaded package ideal for manual assembly and test.
Availability
MSP430FR5858IDAR is available at Aetrix Electronics and suitable for smart utility metering, energy-harvesting sensor nodes, and wearable electronics requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for MSP430FR5858IDAR 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 MSP430 ULP FRAM portfolio delivers ultra-low-power mixed-signal MCUs combining ferroelectric memory with intelligent peripherals for energy-constrained sensing, metering, and data-logging applications.
FAQ
What is the maximum operating frequency of the MSP430FR5858IDAR?
The MSP430FR5858IDAR supports a maximum CPU clock frequency of 16 MHz using its digitally controlled oscillator (DCO) or external HFXT crystal. This allows real-time signal processing and fast FRAM writes while maintaining ultra-low-power operation in active mode (≈100 µA/MHz). The device's timing specifications are validated across the full 1.8 V–3.6 V supply range.
Does the MSP430FR5858IDAR support low-frequency crystal (LFXT) operation?
No, the MSP430FR5858IDAR does not support LFXT. As confirmed in the device comparison table and functional block diagram, it belongs to the MSP430FR585x series with HFXT-only oscillator capability. LFXT functionality (required for RTC with 32-kHz crystal) is excluded; RTC operation relies on VLO or HFXT-derived clocks, with LPM3.5 current specified at 0.25 µA typical using VLO.
How many analog input channels does the MSP430FR5858IDAR ADC support?
The MSP430FR5858IDAR integrates a 12-bit ADC12_B module with 14 external analog input channels (A0–A13) and 2 internal references. This is explicitly documented in Table 3-1 (Device Comparison) and Section 4.2 (Signal Descriptions), distinguishing it from higher-channel variants like the MSP430FR586x series (16 external channels).
What debug interface does the MSP430FR5858IDAR use?
The MSP430FR5858IDAR uses the Spy-Bi-Wire (SBW) interface via the RST/NMI/SBWTDIO and TEST/SBWTCK pins. This 2-wire JTAG variant enables full debugging, flash programming, and EnergyTrace++ current profiling without requiring a 4-pin JTAG header, reducing PCB complexity and cost.
Is the MSP430FR5858IDAR pin-compatible with other devices in the MSP430FR58xx family?
The MSP430FR5858IDAR shares the TSSOP-38 package and pinout with MSP430FR5857IDAR and MSP430FR5859IDAR, enabling direct substitution within that variant group. However, it is not pin-compatible with RGZ (48-pin) or RHA (40-pin) variants due to differing pin counts, oscillator pin allocations (HFXIN/HFXOUT vs LFXIN/LFXOUT), and I/O mapping.
MSP430FR5858IDAR 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:
- 48KB (48K 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:
MSP430FR5858IDAR FAQ
1.How can I place an order for MSP430FR5858IDAR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR5858IDAR 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 MSP430FR5858IDAR reliable?
The price and inventory of MSP430FR5858IDAR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR5858IDAR is usually 5 days.
3.What payment methods are accepted for MSP430FR5858IDAR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR5858IDAR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR5858IDAR?
MSP430FR5858IDAR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR5858IDAR 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 MSP430FR5858IDAR?
For technical support, including MSP430FR5858IDAR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR5858IDAR requirements.
6.How does Aetrix verify that MSP430FR5858IDAR is sourced from the original manufacturer or authorized distributors?
All MSP430FR5858IDAR 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 MSP430FR5858IDAR meets industry standards.
7.What is the process for return or replacement of MSP430FR5858IDAR?
All MSP430FR5858IDAR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR5858IDAR, 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 MSP430FR5858IDAR part is unused and in its original packaging.
Return procedure for MSP430FR5858IDAR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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