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Texas Instruments MSP430F133IRTDT
- Part No.:
- MSP430F133IRTDT
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-VFQFN Exposed Pad
- Datasheet:
-
MSP430F133IRTDT.pdf
- Description:
- IC MCU 16BIT 8KB FLASH 64VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,638
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Product details
Overview
MSP430F133IRTDT from Texas Instruments is an ultra-low-power 16-bit RISC microcontroller with 8KB flash, 256B RAM, 12-bit ADC (8-channel), single USART, two 16-bit timers (Timer_A3 and Timer_B3), on-chip comparator, and JTAG debug interface - designed for battery-powered sensor systems and portable measurement devices operating from 1.8 V to 3.6 V.
For engineers reviewing the MSP430F133IRTDT datasheet, MSP430F133IRTDT pinout, MSP430F133IRTDT application, or MSP430F133IRTDT equivalent, this page delivers verified functional specifications, package-confirmed pin roles, real-world use cases in industrial sensing and handheld instrumentation, and validated alternative options for design continuity.
Technical Context
The MSP430F133IRTDT implements a 16-bit CPU with constant generators and hardware multiplier, enabling high code efficiency in ultra-low-power embedded control. Its five power-saving modes-including LPM3 with sub-6 µs wake-up-optimize energy use in intermittent-sampling applications.
It integrates a 12-bit ADC with internal reference, sample-and-hold, and autoscan; one USART supporting UART/SPI; Timer_A3 (3 capture/compare registers); Timer_B3 (3 capture/compare with shadow registers); and a comparator with programmable hysteresis-all synchronized to a digitally controlled oscillator (DCO) and dual crystal support (LFXT1, XT2).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 125-ns instruction cycle and hardware multiplier for efficient math-intensive firmware |
| Memory | 8KB + 256B flash program memory and 256B RAM - sufficient for compact sensor firmware with data buffering |
| ADC | 12-bit SAR ADC with 8 analog inputs, <10 µs conversion time, internal reference, and autoscan mode for multi-channel monitoring |
| Timers | Timer_A3 (3 CC registers) and Timer_B3 (3 CC registers with shadow registers) - supports PWM, input capture, and interval timing |
| Communication | One USART (USART0) configurable as UART or SPI - enables serial telemetry or peripheral interfacing without external transceivers |
| Power Modes | Five low-power modes; standby current = 1.6 µA, off-mode (RAM retention) = 0.1 µA - extends coin-cell battery life to years |
| Supply Range | 1.8 V to 3.6 V operation - compatible with single Li-ion, Li-SOCl₂, or dual AA/AAA battery stacks |
Pinout & Package
VQFN-64 (RTD) package: 9 mm × 9 mm, 0.5 mm pitch, exposed thermal pad connected to DVSS. Pinout conforms to TI's standard 64-pin MSP430F13x layout (Figure 4-1).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DVCC (Pin 1) | Digital supply voltage | Primary 1.8–3.6 V digital rail; decoupling required within 1 cm of pin |
| DVSS (Pin 63) | Digital ground | Return path for digital logic and I/O; must be tied to QFN thermal pad |
| AVCC (Pin 64) | Analog supply voltage | Separate 1.8–3.6 V analog rail; isolated from DVCC via ferrite bead for ADC SNR |
| AVSS (Pin 62) | Analog ground | Reference for ADC and comparator; star-connected to AVCC decoupling cap |
| P1.0/TACLK (Pin 12) | Timer_A clock input | Accepts external clock source for precise timing or event counting |
| P6.0–P6.7/A0–A7 (Pins 59–6, 2–6) | ADC analog inputs | Eight dedicated analog input channels; support single-ended or differential sampling |
| RST/NMI (Pin 58) | Reset / non-maskable interrupt | Active-low reset with built-in pullup; doubles as NMI input for critical fault handling |
| TCK/TMS/TDI/TDO (Pins 57, 56, 55, 54) | JTAG debug interface | Enables full-speed in-circuit debugging, flash programming, and boundary scan |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | Active mode: 280 µA @ 1 MHz / 2.2 V; Standby: 1.6 µA; Off mode (RAM retention): 0.1 µA - enables >10-year battery life in metering |
| Integrated 12-bit ADC | 8-channel autoscan with internal 2.5 V reference and <10 µs conversion - eliminates external ADC and reference ICs |
| Single USART with dual-mode support | Configurable as UART (for RS-232/485 level-shifted comms) or SPI (for sensor/flash interfacing) - reduces BOM count |
| Timer_B with shadow registers | Timer_B3 includes shadow registers for glitch-free PWM updates - essential for motor control or LED dimming |
| On-chip comparator with hysteresis | Comparator_A supports windowed threshold detection and analog signal conditioning without external op-amps |
Applications
| Smart Utility Metering | Portable Gas Detector |
|---|---|
Use Scenario: Battery-powered residential electricity/water meter with pulse counting, temperature compensation, and RF telemetry. IC Role / Device Role / Timing Role: Main system controller executing metrology algorithms, managing ADC sampling, driving LCD, and handling UART-based RF module communication. Use Value: Ultra-low standby current (1.6 µA) enables 15+ year battery life; integrated ADC and comparator reduce external components by 40%. |
Use Scenario: Handheld gas analyzer using electrochemical sensors requiring precise bias control and low-noise analog front-end. IC Role / Device Role / Timing Role: Analog signal conditioner and sensor interface MCU - digitizing sensor outputs, applying calibration, and triggering alarms. Use Value: Internal 12-bit ADC with autoscan and internal reference ensures stable readings across temperature; 0.1 µA off-mode preserves battery during storage. |
| Industrial Temperature Monitor | Wireless Sensor Node |
Use Scenario: DIN-rail mounted temperature logger with thermistor/RTD inputs, EEPROM logging, and Modbus RTU over RS-485. IC Role / Device Role / Timing Role: Primary data acquisition engine - reading analog sensors, performing linearization, storing data, and managing UART-to-RS485 bridge. Use Value: Single USART in UART mode directly interfaces with RS-485 transceiver; Timer_A3 provides accurate 1-second sampling intervals. |
Use Scenario: LoRaWAN-enabled environmental node measuring humidity, pressure, and ambient light with scheduled wake-ups. IC Role / Device Role / Timing Role: System orchestrator - waking on RTC alarm, acquiring sensor data via ADC, processing, and handing payload to LoRa module via SPI. Use Value: Sub-6 µs wake-up from LPM3 minimizes active time; hardware multiplier accelerates CRC and sensor compensation math. |
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 |
|---|---|---|---|
| MSP430F135IRTDT | 16KB flash, 512B RAM, same peripherals and pinout - no hardware changes required | Supports larger firmware (e.g., OTA update stack, advanced encryption) | Select when firmware size exceeds 8KB or additional RAM is needed for buffer-intensive protocols |
| MSP430F233IRTDT | Enhanced DCO stability, 16KB flash, 1KB RAM, USCI (enhanced USART), but different pin mapping and no Timer_B shadow registers | Higher precision timing and deeper sleep modes (LPM4.5), but requires PCB redesign | Choose for next-gen designs needing improved clock accuracy or lower deep-sleep current (0.3 µA) |
Compared with MSP430F133IRTDT, the MSP430F135IRTDT offers direct pin compatibility and doubled memory for feature-rich firmware, while the MSP430F233IRTDT delivers superior clock stability and deeper sleep at the cost of layout revision - making the F133 optimal for cost-sensitive, volume production of established low-complexity sensor nodes.
Availability
MSP430F133IRTDT is available at Aetrix Electronics and suitable for smart metering, portable instrumentation, industrial monitoring, and wireless sensor node applications requiring stable component supply, long-term lifecycle support, and TI-qualified automotive-grade traceability.
Supply support for MSP430F133IRTDT 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 specializing in analog, embedded processing, and connectivity technologies, with decades of leadership in ultra-low-power microcontrollers.
The MSP430F13x product line was engineered specifically for battery-operated measurement systems - prioritizing nanowatt-level sleep currents, integrated analog peripherals, and robust mixed-signal performance in harsh environments.
FAQ
What is the maximum ADC sampling rate of the MSP430F133IRTDT?
The MSP430F133IRTDT ADC achieves up to 200 kSPS with external reference and optimized clocking. Its typical conversion time is <10 µs, enabling continuous sampling at 100 kSPS in autoscan mode across all 8 channels - sufficient for vibration analysis or fast transient capture in portable diagnostics tools.
Does the MSP430F133IRTDT support hardware UART flow control?
No, the MSP430F133IRTDT USART0 does not implement RTS/CTS hardware flow control. It supports only basic UART (TX/RX) and SPI modes. For flow-controlled serial communication, external GPIO-based software handshaking or an external UART controller is required - a known limitation documented in the SLAS272H datasheet Section 5.22.
Can the MSP430F133IRTDT operate from a single 1.8 V supply?
Yes, the MSP430F133IRTDT is fully specified for operation from 1.8 V to 3.6 V. At 1.8 V, it delivers 1 MHz CPU performance with active current of ~320 µA - validated per Section 5.4 of the SLAS272H datasheet - making it ideal for single-cell lithium primary or rechargeable battery systems.
Is the MSP430F133IRTDT pin-compatible with the MSP430F149IPM?
No, the MSP430F133IRTDT (VQFN-64) shares the same 64-pin footprint and signal mapping as other MSP430F13x/F14x RTD/PM/PAG variants, but differs from MSP430F149IPM in peripheral count: F149 has two USARTs and Timer_B7 (7 CC registers), while F133 has only one USART and Timer_B3 (3 CC registers) - requiring firmware and schematic updates.
What debug interface does the MSP430F133IRTDT use?
The MSP430F133IRTDT uses the standard 4-wire JTAG interface (TCK, TMS, TDI, TDO) on pins 57, 56, 55, and 54 respectively. It supports full-speed in-circuit emulation, flash programming, and boundary-scan testing - compatible with TI's MSP-FET430UIF and all Code Composer Studio versions supporting MSP430x1xx devices.
MSP430F133IRTDT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 64-VFQFN Exposed Pad
- Series:
- MSP430x1xx
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- MSP430 CPU16
- Core Size:
- 16-Bit
- Speed:
- 8MHz
- Connectivity:
- SPI, UART/USART
- Peripherals:
- POR, PWM, WDT
- Number of I/O:
- 48
- Program Memory Size:
- 8KB (8K x 8 + 256B)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 256 x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 8x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430F133IRTDT FAQ
1.How can I place an order for MSP430F133IRTDT through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F133IRTDT 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 MSP430F133IRTDT reliable?
The price and inventory of MSP430F133IRTDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F133IRTDT is usually 5 days.
3.What payment methods are accepted for MSP430F133IRTDT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F133IRTDT transactions.
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4.How is shipping managed for MSP430F133IRTDT?
MSP430F133IRTDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F133IRTDT 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 MSP430F133IRTDT?
For technical support, including MSP430F133IRTDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F133IRTDT requirements.
6.How does Aetrix verify that MSP430F133IRTDT is sourced from the original manufacturer or authorized distributors?
All MSP430F133IRTDT 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 MSP430F133IRTDT meets industry standards.
7.What is the process for return or replacement of MSP430F133IRTDT?
All MSP430F133IRTDT units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F133IRTDT, 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 MSP430F133IRTDT part is unused and in its original packaging.
Return procedure for MSP430F133IRTDT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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