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Texas Instruments MSP430F235TRGCT
- Part No.:
- MSP430F235TRGCT
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-VFQFN Exposed Pad
- Datasheet:
-
MSP430F235TRGCT.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 64VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,353
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Product details
Overview
MSP430F235TRGCT from Texas Instruments is an ultra-low-power 16-bit RISC microcontroller with 16KB+256B flash, 2KB RAM, 12-bit ADC, two 16-bit timers (Timer_A3 and Timer_B3), on-chip comparator, four USCI modules (two UART/IrDA/SPI, two SPI/I²C), and programmable brownout detection - deployed in battery-powered sensor nodes and portable instrumentation.
For engineers reviewing the MSP430F235TRGCT datasheet, MSP430F235TRGCT pinout, MSP430F235TRGCT application, or MSP430F235TRGCT equivalent, key selection criteria include its 64-pin QFN (RGC) package, 1.8–3.6 V operation, <1 µs wake-up from standby, ADC12 channel count, and USCI_A0/B0 interface availability versus family variants.
Technical Context
The MSP430F235TRGCT implements a 16-bit CPU with constant generators and a calibrated DCO enabling sub-1 µs active-mode wake-up. Its clock system integrates internal LF oscillator, 32-kHz crystal support (XT1), and optional high-frequency XT2 up to 16 MHz.
It features dual USCI modules: USCI_A0 supports enhanced UART with auto-baud detection and IrDA encoding/decoding; USCI_B0 supports synchronous SPI and I²C. The ADC12 includes internal reference, sample-and-hold, and autoscan across eight analog inputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 62.5-ns instruction cycle; enables compact, deterministic real-time firmware for resource-constrained embedded systems. |
| Flash / RAM | 16KB+256B flash memory with security fuse; 2KB RAM - sufficient for sensor fusion algorithms and protocol stacks without external memory. |
| ADC Resolution | 12-bit SAR ADC with 8-channel autoscan, internal reference, and sample-and-hold - supports precision analog sensing in single-supply systems. |
| Power Modes | Active mode: 270 µA at 1 MHz/2.2 V; Standby (VLO): 0.3 µA; Off (RAM retention): 0.1 µA - extends coin-cell battery life to multi-year operation. |
| Timers | Timer_A3 with three capture/compare registers; Timer_B3 with three capture/compare registers and shadow registers - enables precise PWM generation and input capture for motor control or timing-critical I/O. |
| Communication | USCI_A0 (UART/IrDA/SPI) + USCI_B0 (SPI/I²C); no USCI_A1/B1 - supports dual-interface sensor interfacing but excludes redundant serial channels. |
| Supply Range | 1.8 V to 3.6 V - compatible with Li-ion, Li-polymer, and dual-AA battery configurations without LDO regulation overhead. |
Pinout & Package
Package: 64-pin QFN (RGC), 9 mm × 9 mm, 0.5 mm pitch, exposed thermal pad (to be connected to DVSS).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0/TACLK/CAOUT | Timer_A clock input / Comparator_A output | Enables external clock synchronization for timer-based sampling or drives analog comparators directly without GPIO toggling. |
| P2.6/ADC12CLK/CA6 | ADC conversion clock / Comparator_A input | Allows asynchronous ADC triggering via external signal or provides dedicated analog input for comparator threshold monitoring. |
| P3.0/UCB0STE/UCA0CLK | USCI_B0 slave transmit enable / USCI_A0 clock | Configures synchronous SPI master/slave handshaking or supplies clock to external UART peripherals in shared-bus designs. |
| P5.7/TBOUTH/SVSOUT | Timer_B output high-impedance control / SVS output | Disables all Timer_B PWM outputs simultaneously during fault conditions or asserts SVS status for system-level power supervision. |
| RST/NMI | Reset / nonmaskable interrupt input | Serves dual role: hardware reset initiation and high-priority event capture (e.g., critical sensor alert or watchdog timeout). |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-fast wake-up | Sub-1 µs transition from standby to active mode enables duty-cycled sensing with minimal latency and energy penalty. |
| Integrated supply monitoring | Programmable SVS/SVM with selectable trip points ensures reliable brownout protection without external supervisor ICs. |
| On-chip comparator | Comparator_A with six selectable inputs and rail-to-rail operation supports analog threshold detection and windowing without external op-amps. |
| Bootstrap loader | UART-based BSL allows field firmware updates without JTAG hardware, reducing production and maintenance tooling cost. |
| Digital-controlled oscillator | Calibrated DCO with four factory-trimmed frequencies (±1%) eliminates need for external crystals in cost-sensitive timing applications. |
Applications
| Wireless Sensor Node | Portable Medical Meter |
|---|---|
Use Scenario: Battery-powered environmental sensor collecting temperature, humidity, and CO₂ data every 30 seconds, transmitting via UART-to-LoRa module. IC Role / Device Role / Timing Role: Primary MCU managing ADC sampling, low-power scheduling, UART communication, and sleep/wake coordination. Use Value: 0.1 µA off-mode current and <1 µs wake-up minimize quiescent drain, extending CR2032 battery life beyond 5 years. | Use Scenario: Handheld blood glucose meter requiring fast ADC conversion, LCD drive, button debounce, and USB charging detection. IC Role / Device Role / Timing Role: System controller handling analog front-end digitization, user interface timing, and power path management. Use Value: Integrated 12-bit ADC with internal reference and comparator enables accurate glucose strip reading without external precision references. |
| Industrial Process Monitor | Smart Utility Meter Interface |
Use Scenario: DIN-rail mounted device monitoring 4–20 mA loop signals, logging anomalies, and reporting via RS-485 using USCI_A0. IC Role / Device Role / Timing Role: Signal acquisition and protocol translation engine interfacing analog sensors and industrial bus transceivers. Use Value: USCI_A0's enhanced UART with auto-baud detection adapts to legacy fieldbus baud rates without configuration overhead. | Use Scenario: AMI endpoint communicating with smart electricity meter via optical port (IrDA) and storing tariff data in flash. IC Role / Device Role / Timing Role: Communication co-processor managing IrDA physical layer, flash wear leveling, and secure boot verification. Use Value: USCI_A0's integrated IrDA encoder/decoder eliminates external transceiver IC, reducing BOM count and PCB area. |
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 |
|---|---|---|---|
| MSP430F233TRGCT | 8KB+256B flash, 1KB RAM, Timer_B3 (3 CC), no USCI_A1/B1 - identical peripheral set except reduced memory and no second USCI pair. | Suitable for simpler sensor nodes with smaller firmware footprint and no dual-serial requirement. | Select when code size <64 KB and dual USCI not required; lower cost alternative with same pinout and software compatibility. |
| MSP430F247TRGCT | 32KB+256B flash, 4KB RAM, Timer_B7 (7 CC with shadow registers), USCI_A0/A1/B0/B1 - adds second USCI pair and expanded timer resources. | Required for complex protocols (e.g., simultaneous I²C sensor hub + UART telemetry) or larger RTOS-based firmware. | Choose when additional flash/RAM, extra USCI, or advanced Timer_B shadow register features are needed; same package but not software drop-in due to memory map differences. |
Compared with MSP430F233TRGCT, the MSP430F235TRGCT offers double flash/RAM and identical peripheral count - ideal for feature-rich sensor firmware. Against MSP430F247TRGCT, it trades USCI_A1/B1 and Timer_B7 for lower cost and power, making it optimal for single-interface, memory-constrained designs.
Availability
MSP430F235TRGCT is available at Aetrix Electronics and suitable for wireless sensor nodes, portable medical meters, and industrial process monitors requiring stable component supply, long-term lifecycle assurance, and TI-authorized traceability.
Supply support for MSP430F235TRGCT 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 MSP430F235TRGCT belongs to the MSP430F2xx ultra-low-power microcontroller product line, designed specifically for extended-battery-life applications in measurement, sensing, and portable instrumentation where energy efficiency and integration are critical.
FAQ
What is the maximum operating frequency of the MSP430F235TRGCT?
The MSP430F235TRGCT supports internal DCO frequencies up to 16 MHz, with four factory-calibrated settings accurate to ±1%. External crystal oscillators (XT1 and XT2) can also drive the system clock - XT1 accepts 32 kHz watch crystals, while XT2 supports high-frequency crystals up to 16 MHz. This enables flexible clock source selection for timing-critical peripherals like the ADC12 or USCI modules.
Does the MSP430F235TRGCT include a hardware multiplier?
Yes, the MSP430F235TRGCT includes a 16-bit hardware multiplier supporting MPY, MPYS, MAC, and MACS instructions. This accelerator significantly improves performance for fixed-point arithmetic used in digital filtering, sensor calibration, and mathematical functions - reducing CPU cycles and active-mode power consumption compared to software emulation.
How many analog input channels does the ADC12 module support on the MSP430F235TRGCT?
The ADC12 module on the MSP430F235TRGCT supports eight analog input channels (A0–A7), accessible via P6.0 through P6.7. All channels are configurable for single-ended or differential acquisition, and the module includes internal reference voltage generation, sample-and-hold, and autoscan functionality - enabling efficient multi-sensor data acquisition without external multiplexing.
Is the MSP430F235TRGCT pin-compatible with other devices in the MSP430F2xx family?
The MSP430F235TRGCT shares the same 64-pin QFN (RGC) package and pinout with MSP430F233TRGCT, MSP430F247TRGCT, and other RGC-packaged F2xx devices. However, peripheral availability differs: MSP430F235TRGCT lacks USCI_A1/B1 and has Timer_B3 (not Timer_B7), so firmware must be validated for peripheral mapping - it is footprint-compatible but not fully functional drop-in replacement across all variants.
What debug interface does the MSP430F235TRGCT support?
The MSP430F235TRGCT supports JTAG debugging via TCK, TMS, TDI/TCLK, and TDO/TDI pins, and includes an Embedded Emulation Module (EEM) for full-speed real-time debugging and flash programming. It is compatible with TI's MSP-FET430UIF debugger and MSP-GANG430 gang programmer - enabling production programming and in-system firmware updates without requiring external debug headers.
MSP430F235TRGCT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 64-VFQFN Exposed Pad
- Series:
- MSP430F2xx
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- MSP430 CPU16
- Core Size:
- 16-Bit
- Speed:
- 16MHz
- Connectivity:
- I2C, IrDA, LINbus, SCI, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O:
- 48
- Program Memory Size:
- 16KB (16K 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
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430F235TRGCT FAQ
1.How can I place an order for MSP430F235TRGCT through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F235TRGCT 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 MSP430F235TRGCT reliable?
The price and inventory of MSP430F235TRGCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F235TRGCT is usually 5 days.
3.What payment methods are accepted for MSP430F235TRGCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F235TRGCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F235TRGCT?
MSP430F235TRGCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F235TRGCT 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 MSP430F235TRGCT?
For technical support, including MSP430F235TRGCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F235TRGCT requirements.
6.How does Aetrix verify that MSP430F235TRGCT is sourced from the original manufacturer or authorized distributors?
All MSP430F235TRGCT 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 MSP430F235TRGCT meets industry standards.
7.What is the process for return or replacement of MSP430F235TRGCT?
All MSP430F235TRGCT units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F235TRGCT, 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 MSP430F235TRGCT part is unused and in its original packaging.
Return procedure for MSP430F235TRGCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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