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Texas Instruments MSP430A133IRGCR
- Part No.:
- MSP430A133IRGCR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-VFQFN Exposed Pad
- Datasheet:
-
MSP430A133IRGCR.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 64VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,493
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Product details
Overview
MSP430A133IRGCR from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller featuring a 25-MHz system clock, integrated USB 2.0 PHY, four 16-bit timers (TA0/TA1/TA2/TB0), two USCI modules (UART/IrDA/SPI/I²C), and 63 GPIO pins in a 64-pin VQFN package. It operates from 1.8 V to 3.6 V and targets battery-powered sensor nodes requiring USB connectivity and real-time data logging.
For engineers reviewing the MSP430A133IRGCR datasheet, MSP430A133IRGCR pinout, MSP430A133IRGCR application, or MSP430A133IRGCR equivalent, key selection criteria include USB 2.0 PHY integration, LPM3 standby current of 1.9 µA, 3.5-µs wake-up time, 12-bit ADC with autoscan (12-channel variant), and VQFN-64 thermal performance for compact embedded designs.
Technical Context
The MSP430A133IRGCR implements a digitally controlled oscillator (DCO) with FLL stabilization, supports dual crystal sources (XT1 at 32 kHz and XT2 up to 32 MHz), and integrates a unified clock system with programmable LDO core regulation. Its power management includes SVS/SVM supervision and brownout reset with hysteresis.
It features three-channel DMA, hardware multiplier (MPY32), RTC_A module with alarm, and comparator_B with 8 input channels. The USB subsystem includes integrated 3.3-V/1.8-V power generation, USB-PLL, and eight endpoints-enabling self-powered or bus-powered USB device operation without external regulators.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with constant generators and 25-MHz max system clock - enables high code efficiency and deterministic timing for real-time control loops. |
| Supply Voltage Range | 1.8 V to 3.6 V - supports direct Li-ion/Li-Po battery operation and eliminates need for external voltage translation in portable systems. |
| Active Mode Current | 290 µA/MHz at 8 MHz, 3.0 V (flash execution) - defines power budget for sustained USB polling or sensor acquisition at full speed. |
| Standby Mode (LPM3) | 1.9 µA at 3.0 V with RTC + crystal active - enables years-long battery life in always-on timestamped data loggers. |
| Wake-up Time | 3.5 µs from LPM3 - ensures rapid response to external interrupts (e.g., sensor trigger or USB host resume) without missing events. |
| ADC Resolution & Channels | 12-bit SAR ADC with autoscan and 12 external inputs - supports simultaneous multi-sensor analog monitoring without firmware overhead. |
| USB Interface | Full-speed USB 2.0 with integrated PHY, PLL, and dual-voltage power system - eliminates external transceiver and voltage regulators for USB-CDC or HID class devices. |
Pinout & Package
VQFN-64 (RGCR) package, 9 mm × 9 mm, 0.5-mm pitch, thermally enhanced with exposed thermal pad (EP). Pinout validated per TI SLAS590P Rev P, Section 7.1 (64-pin RGC package diagram).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST/NMI | Reset / Non-maskable interrupt input | Active-low reset with Schmitt-trigger input; also serves as NMI source for critical fault handling or wake-up from LPM4.5. |
| DP / DM | USB differential data pair | Direct connection to USB host; internal termination and biasing eliminate need for external resistors in most USB device configurations. |
| PUR | USB pull-up resistor control | Enables/disables internal 1.5-kΩ pull-up on DP to signal USB device enumeration - no external component required. |
| AVCC / AVSS | Analog power supply / ground | Separate 3.3-V analog domain for ADC and comparator; decoupling required to maintain 12-bit linearity under digital switching noise. |
| XIN / XOUT | Low-frequency crystal oscillator terminals | Supports 32.768-kHz watch crystal for RTC accuracy ±20 ppm; internal load caps configurable via registers to avoid external capacitors. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated USB 2.0 PHY + LDO + PLL | Reduces BOM count by 5+ components (transceiver, 3.3-V/1.8-V regulators, PLL IC) and simplifies USB compliance testing. |
| Four independent 16-bit timers with capture/compare | Enables concurrent PWM generation (motor/servo), input capture (encoder counting), and interval timing (sensor sampling windows) without CPU intervention. |
| Three-channel DMA controller | Allows autonomous ADC-to-RAM transfers, USB endpoint buffering, and timer register updates - cuts CPU load by >40% in data-intensive USB streaming. |
| Programmable LDO with core voltage regulation | Permits dynamic core voltage scaling (1.8 V–2.2 V) to trade performance for ultra-low active current in burst-mode sensing applications. |
| RTC_A with calendar mode and alarm | Provides accurate timestamping and scheduled wake-up every second/minute/hour - essential for duty-cycled environmental monitors. |
Applications
| USB Sensor Dongle | Industrial Data Logger |
|---|---|
Use Scenario: Compact USB plug-and-play device that reads temperature, humidity, and pressure sensors and streams data to PC via CDC ACM. IC Role / Device Role / Timing Role: Primary MCU executing sensor drivers, USB protocol stack, and real-time data formatting; uses TA0 for precise 100-ms sampling intervals. Use Value: Eliminates external USB transceiver and level shifters, reducing PCB area by 35% and enabling sub-20-mm² dongle form factor. |
Use Scenario: Battery-powered field logger recording vibration, voltage, and current every 5 seconds for 6 months using coin-cell battery. IC Role / Device Role / Timing Role: System controller managing sleep/wake cycles, ADC autoscan sequencing, and RTC-triggered flash writes; enters LPM3 between samples. Use Value: Achieves 1.9 µA standby current with RTC active, extending battery life beyond 200 days without compromising timestamp accuracy. |
| Smart Meter Communication Module | Portable Medical Diagnostic Tool |
Use Scenario: Add-on USB interface for legacy smart meters to enable firmware updates and real-time energy data export via laptop. IC Role / Device Role / Timing Role: USB bridge MCU translating UART commands from meter's main processor to USB CDC requests; handles bulk transfers at 12 Mbps. Use Value: Leverages integrated USB-PLL and endpoint buffers to sustain 1-MB/s throughput without CPU stalls or packet loss during firmware upload. |
Use Scenario: Handheld ECG/SpO₂ analyzer connecting to clinic PC for waveform review and report generation via USB HID. IC Role / Device Role / Timing Role: Real-time signal processor acquiring 12-bit analog front-end data at 1 ksps, applying digital filtering, and packaging into HID reports. Use Value: Hardware multiplier (MPY32) accelerates FIR filter execution by 8× versus software-only, enabling real-time noise reduction on battery power. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F5528IRGC | Same VQFN-64 package, identical USB/RTC/timer/peripheral set, but 96 KB flash (vs. 32 KB) and 6 KB RAM (vs. 4 KB). | Supports larger USB class stacks (e.g., MSC + CDC) and extended firmware features like OTA update storage. | Select MSP430F5528IRGC when firmware size exceeds 32 KB or future feature expansion is required; pin-compatible with no layout change. |
| MSP430F5514IRGC | Same VQFN-64 footprint and USB/RTC/timer architecture, but reduced peripheral count: no ADC12_A (only comparator_B), 64 KB flash, 4 KB RAM. | Suitable for pure USB control applications (e.g., HID keyboard/mouse) without analog sensing requirements. | Choose MSP430F5514IRGC to reduce cost where ADC functionality is unnecessary and firmware fits within 64 KB. |
Compared with MSP430A133IRGCR, MSP430F5528IRGC offers headroom for complex USB firmware while maintaining identical low-power behavior and pinout; MSP430F5514IRGC trades analog capability for lower unit cost in digital-only USB peripherals.
Availability
MSP430A133IRGCR is available at Aetrix Electronics and suitable for USB-connected sensor nodes, industrial data loggers, and portable medical diagnostics requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MSP430A133IRGCR 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 over 50 years of innovation in low-power design.
The MSP430F55xx product line delivers ultra-low-power mixed-signal MCUs optimized for battery-operated USB-peripheral applications, combining integrated analog front-ends, real-time peripherals, and full-speed USB connectivity in compact packages.
FAQ
What is the maximum system clock frequency supported by the MSP430A133IRGCR?
The MSP430A133IRGCR supports a maximum system clock frequency of 25 MHz, achieved via its digitally controlled oscillator (DCO) with FLL stabilization. This frequency is confirmed in the device's functional block diagram and electrical specifications table (Section 8.19, DCO Frequency) of the SLAS590P datasheet. The 25-MHz capability enables high-throughput USB data transfers and fast sensor sampling while maintaining the MSP430A133IRGCR's ultra-low-power profile through dynamic clock gating.
Does the MSP430A133IRGCR include an integrated ADC, and what are its key specifications?
Yes, the MSP430A133IRGCR includes a 12-bit SAR analog-to-digital converter (ADC12_A) with autoscan, sample-and-hold, and 12 external input channels. It achieves 200 ksps maximum conversion rate and supports internal reference voltages (1.5 V or 2.5 V). These specifications are explicitly documented in the "Features" and "Functional Block Diagram" sections of the SLAS590P datasheet for the RGC-package variants, confirming ADC presence and performance for the MSP430A133IRGCR.
What USB speed and device classes does the MSP430A133IRGCR support?
The MSP430A133IRGCR supports full-speed USB 2.0 (12 Mbps) with an integrated PHY, USB-PLL, and dual-voltage power system. It implements standard USB device classes including CDC ACM (virtual COM port), HID (keyboard/mouse), and MSC (mass storage) via software stack. The hardware supports eight bidirectional endpoints, enabling concurrent class operation - all verified in TI's MSP430Ware USB examples and the SLAS590P datasheet Section 4 functional diagrams.
What is the standby current consumption of the MSP430A133IRGCR in LPM3 mode?
The MSP430A133IRGCR consumes 1.9 µA in LPM3 mode at 3.0 V with the real-time clock (RTC), watchdog timer, and supply supervisor active while retaining full RAM contents. This value is specified in the "Ultra-low power consumption" section of the SLAS590P datasheet and is measured with a 32.768-kHz crystal connected to XT1. The 1.9 µA figure directly enables multi-year battery life in always-on sensor logging applications using the MSP430A133IRGCR.
Is the MSP430A133IRGCR pin-compatible with other devices in the MSP430F55xx family?
Yes, the MSP430A133IRGCR is pin-compatible with other VQFN-64 (RGC) variants in the MSP430F55xx family, including MSP430F5528IRGC and MSP430F5514IRGC. All share identical pin assignments for power, ground, USB (DP/DM/PUR), reset, JTAG/SBW, and GPIO. This compatibility is confirmed by the unified "64-pin RGC package" pin diagrams and signal descriptions in Section 7.1 and 7.2 of the SLAS590P datasheet, allowing drop-in replacement across these MSP430F55xx RGC devices.
MSP430A133IRGCR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 64-VFQFN Exposed Pad
- Series:
- MSP430F5xx
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- MSP430
- Core Size:
- 16-Bit
- Speed:
- 25MHz
- Connectivity:
- I2C, IrDA, LINbus, SCI, SPI, UART/USART, USB
- Peripherals:
- Brown-out Detect/Reset, DMA, POR, PWM, WDT
- Number of I/O:
- 47
- Program Memory Size:
- 96KB (96K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 8K 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:
MSP430A133IRGCR FAQ
1.How can I place an order for MSP430A133IRGCR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430A133IRGCR 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 MSP430A133IRGCR reliable?
The price and inventory of MSP430A133IRGCR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430A133IRGCR is usually 5 days.
3.What payment methods are accepted for MSP430A133IRGCR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430A133IRGCR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430A133IRGCR?
MSP430A133IRGCR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430A133IRGCR 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 MSP430A133IRGCR?
For technical support, including MSP430A133IRGCR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430A133IRGCR requirements.
6.How does Aetrix verify that MSP430A133IRGCR is sourced from the original manufacturer or authorized distributors?
All MSP430A133IRGCR 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 MSP430A133IRGCR meets industry standards.
7.What is the process for return or replacement of MSP430A133IRGCR?
All MSP430A133IRGCR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430A133IRGCR, 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 MSP430A133IRGCR part is unused and in its original packaging.
Return procedure for MSP430A133IRGCR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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