My Inquiry
My Account
Texas Instruments MSP430F168IRTDR
- Part No.:
- MSP430F168IRTDR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-VFQFN Exposed Pad
- Datasheet:
-
MSP430F168IRTDR.pdf
- Description:
- IC MCU 16BIT 48KB FLASH 64VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,273
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MSP430F168IRTDR from Texas Instruments is an ultralow-power 16-bit mixed-signal microcontroller featuring 48KB+256B flash memory, 2KB RAM, dual 12-bit DACs, a 12-bit ADC with internal reference and autoscan, two 16-bit timers (Timer_A3 and Timer_B7), three-channel DMA, dual USARTs supporting UART/SPI/I²C, and operation across 1.8 V–3.6 V for battery-powered sensor and metering applications.
For engineers reviewing the MSP430F168IRTDR datasheet, MSP430F168IRTDR pinout, MSP430F168IRTDR application, or MSP430F168IRTDR equivalent, key selection criteria include its 64-pin QFN (RTD) package, 7 capture/compare registers in Timer_B, dual USART support with I²C on USART0, wake-up time under 6 μs from standby, and integrated SVS/brownout detection for robust embedded control.
Technical Context
The MSP430F168IRTDR implements a 16-bit RISC CPU with constant generators and seven addressing modes, enabling single-cycle register operations and high code efficiency. Its clock system includes digitally controlled oscillator (DCO), ACLK, SMCLK, and MCLK with external crystal support via XT1 (XIN/XOUT) and XT2 (XT2IN/XT2OUT).
It integrates peripheral modules directly mapped into memory space: ADC12 with 8-channel analog input (A0–A7), DAC12 with voltage-output dual channels (DAC0/DAC1), Comparator_A, and JTAG/EEM for debugging. The device supports five low-power modes (LPM0–LPM4), with LPM4 drawing only 0.2 μA while retaining RAM.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 16 general-purpose registers and constant generators; enables efficient C compilation and deterministic real-time execution. |
| Flash / RAM | 48KB + 256B flash memory for program storage and 2KB RAM for data/stack; supports in-system programming and BSL-based field updates. |
| ADC/DAC | 12-bit ADC12 with 8 analog inputs, internal reference, sample-and-hold, and autoscan; dual 12-bit DAC12 voltage-output channels synchronized for waveform generation. |
| Timers | Timer_A3 with three capture/compare registers; Timer_B7 with seven capture/compare-with-shadow registers-enables complex PWM, input capture, and time-base generation. |
| Communication | USART0 (UART/SPI/I²C) and USART1 (UART/SPI); supports simultaneous serial protocols including multi-master I²C on USART0 for sensor bus integration. |
| Power Modes | Five software-selectable low-power modes; active mode draws 330 μA at 1 MHz/2.2 V; LPM4 draws 0.2 μA with RAM retention-ideal for intermittent sensing. |
| Supply Range | 1.8 V to 3.6 V operation; compatible with single-cell Li-ion, Li-polymer, or dual alkaline batteries without external regulation. |
Pinout & Package
Package: 64-pin QFN (RTD), 9 mm × 9 mm, 0.5 mm pitch, exposed thermal pad connected to DVSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST/NMI | Reset / Nonmaskable Interrupt | Active-low reset input; also serves as NMI source and BSL entry trigger-critical for safe firmware recovery and debug initialization. |
| TCK/TMS/TDI/TDO | JTAG Test Interface | Standard 4-pin JTAG port for programming, boundary scan, and real-time emulation via MSP-FET430UIF or compatible tools. |
| P1.0–P1.7, P2.0–P2.7, P3.0–P3.7, P4.0–P4.7, P5.0–P5.7, P6.0–P6.7 | General-Purpose I/O Ports | 48 programmable digital I/O pins with interrupt capability; many multiplexed with peripherals (e.g., P3.1/SDA, P6.6/DAC0) for flexible board routing. |
| XIN/XOUT | XT1 Crystal Oscillator Input/Output | Supports low-frequency crystals (e.g., 32.768 kHz) for precise real-time clock and ultra-low-power LPM3/LPM4 operation. |
| XT2IN/XT2OUT | XT2 Crystal Oscillator Input/Output | Supports high-frequency crystals (up to 8 MHz) for accurate system clock when DCO calibration is insufficient. |
| VREF+/VREF−/VeREF+ | ADC/DAC Reference Terminals | Enable internal 2.5 V reference or external reference selection; VeREF+ allows precision external reference injection for calibrated measurements. |
Key Features
| Feature | Design Value |
|---|---|
| Ultralow-Power Operation | 0.2 μA in LPM4 (RAM retention), 1.1 μA in standby, and <6 μs wake-up-extends battery life in wireless sensor nodes and portable meters. |
| Dual USART with I²C | USART0 supports full I²C master/slave with arbitration and clock stretching; enables direct connection to temperature, humidity, and pressure sensors without external level shifters. |
| Hardware DMA Controller | Three-channel DMA offloads CPU during ADC sampling, DAC output, or USART transfers-reduces active time and improves deterministic latency. |
| Integrated Analog Peripherals | Single-chip solution with 12-bit ADC (8 ch), dual 12-bit DACs, comparator, and programmable SVS-eliminates need for external signal conditioning in closed-loop control. |
| Secure Flash Programming | Bootstrap loader with password protection and JTAG fuse-locking prevents unauthorized firmware access-meets basic industrial security requirements. |
Applications
| Smart Energy Metering | Industrial Sensor Node |
|---|---|
Use Scenario: Bidirectional energy measurement in residential smart meters with tamper detection and RF communication. IC Role / Device Role / Timing Role: Main controller managing metrology ADC sampling, pulse output generation, real-time clock, and SPI interface to RF transceiver. Use Value: Integrated 12-bit ADC with internal reference and autoscan enables precise current/voltage sampling; LPM4 extends battery backup runtime beyond 10 years. |
Use Scenario: Wireless vibration and temperature monitoring in predictive maintenance systems deployed in harsh factory environments. IC Role / Device Role / Timing Role: Edge-processing node acquiring analog sensor data, performing FFT preprocessing, and transmitting via UART-to-LoRa module. Use Value: Dual USARTs allow simultaneous I²C sensor reads and UART telemetry; Timer_B7's 7 CCRs enable precise timing of multi-axis sampling windows. |
| Portable Medical Instrument | Low-Power Data Logger |
Use Scenario: Handheld blood glucose monitor requiring precise analog front-end, LCD drive, and USB/Bluetooth connectivity. IC Role / Device Role / Timing Role: System-on-chip handling electrochemical sensor signal acquisition, calibration compensation, and display refresh timing. Use Value: Dual 12-bit DACs generate precise bias voltages for sensor excitation; integrated comparator supports fast end-point detection in amperometric assays. |
Use Scenario: Environmental data logger recording temperature, humidity, and light intensity over months on coin-cell power. IC Role / Device Role / Timing Role: Autonomous controller waking periodically via RTC alarm, reading sensors via ADC, storing data in flash, then returning to LPM4. Use Value: 0.2 μA LPM4 current and hardware RTC (ACLK-driven) ensure >5-year operation on CR2032; flash endurance supports 10k write cycles for long-term logging. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F169IRTDR | 60KB flash, 2KB RAM, same peripherals and pinout; higher code capacity for complex protocol stacks. | Better suited for applications requiring larger firmware (e.g., BLE host stack or advanced encryption). | Select when additional flash is needed without changing PCB layout or driver code. |
| MSP430F1611IRTDR | 48KB flash, 10KB RAM, extended addressing; adds large C-stack headroom for RTOS or floating-point math. | Preferred for real-time OS deployment or intensive signal processing where RAM bandwidth matters more than flash. | Choose when application requires >2KB RAM for task stacks, heap, or DMA buffers-no pinout change required. |
Compared with MSP430F168IRTDR, the MSP430F169IRTDR offers 12KB more flash for feature-rich firmware, while the MSP430F1611IRTDR trades flash margin for 5× RAM-making it optimal for multitasking or buffer-intensive sensor fusion, all within identical 64-pin QFN packaging and peripheral compatibility.
Availability
MSP430F168IRTDR is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, portable medical instruments, and low-power data loggers requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for MSP430F168IRTDR 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 with emphasis on power efficiency, reliability, and system integration.
The MSP430F168IRTDR belongs to the MSP430F16x series-a family designed specifically for ultralow-power mixed-signal applications in battery-operated measurement, sensing, and control systems where energy per instruction and sleep-mode current are critical.
FAQ
What is the maximum operating frequency of the MSP430F168IRTDR?
The MSP430F168IRTDR supports up to 8 MHz system clock via the XT2 oscillator or calibrated DCO. Its 125-ns instruction cycle time corresponds to 8 MHz operation, enabling real-time response in time-critical sensor acquisition and control loops. The device maintains full functionality-including ADC conversions and DMA transfers-at this frequency when supplied within the 1.8 V–3.6 V range.
Does the MSP430F168IRTDR support I²C communication?
Yes, the MSP430F168IRTDR supports I²C via USART0 in master or slave mode, with dedicated SDA (P3.1) and SCL (P3.3) pins. It implements standard I²C features including clock stretching, arbitration, and 7-bit addressing-enabling direct interfacing with TI's TMP102, HDC1080, or other industry-standard I²C sensors without external logic.
How many analog input channels does the MSP430F168IRTDR ADC support?
The MSP430F168IRTDR integrates the ADC12 module with eight analog input channels (A0–A7), accessible through P6.0–P6.7. All channels support single-ended or differential sampling, internal reference selection, and autoscan mode-allowing sequential conversion of multiple sensors without CPU intervention, reducing active time and power consumption.
What is the purpose of the TBOUTH pin on the MSP430F168IRTDR?
The TBOUTH pin (P5.7) on the MSP430F168IRTDR serves dual functions: as Timer_B output high-impedance control (TBOUTH) to simultaneously place all Timer_B PWM outputs in high-Z state, and as SVS comparator output (SVSOUT). This enables safe power sequencing during brownout events and synchronized shutdown of external drivers in motor or LED control applications.
Can the MSP430F168IRTDR be programmed in-circuit without removing it from the PCB?
Yes, the MSP430F168IRTDR supports in-circuit programming via its 4-pin JTAG interface (TCK/TMS/TDI/TDO) using tools like MSP-FET430UIF. It also supports UART-based bootstrap loader (BSL) programming through P1.1 (TX) and P2.2 (RX), allowing field firmware updates without JTAG hardware-provided the BSL password is known and flash protection is not permanently fused.
MSP430F168IRTDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 64-VFQFN Exposed Pad
- Series:
- MSP430x1xx
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- MSP430 CPU16
- Core Size:
- 16-Bit
- Speed:
- 8MHz
- Connectivity:
- I2C, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, DMA, POR, PWM, WDT
- Number of I/O:
- 48
- Program Memory Size:
- 48KB (48K x 8 + 256B)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 2K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 8x12b; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430F168IRTDR FAQ
1.How can I place an order for MSP430F168IRTDR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F168IRTDR 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 MSP430F168IRTDR reliable?
The price and inventory of MSP430F168IRTDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F168IRTDR is usually 5 days.
3.What payment methods are accepted for MSP430F168IRTDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F168IRTDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F168IRTDR?
MSP430F168IRTDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F168IRTDR 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 MSP430F168IRTDR?
For technical support, including MSP430F168IRTDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F168IRTDR requirements.
6.How does Aetrix verify that MSP430F168IRTDR is sourced from the original manufacturer or authorized distributors?
All MSP430F168IRTDR 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 MSP430F168IRTDR meets industry standards.
7.What is the process for return or replacement of MSP430F168IRTDR?
All MSP430F168IRTDR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F168IRTDR, 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 MSP430F168IRTDR part is unused and in its original packaging.
Return procedure for MSP430F168IRTDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MSP430F168IRTDR Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
