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Texas Instruments MSP430F235TRGCR
- Part No.:
- MSP430F235TRGCR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-VFQFN Exposed Pad
- Datasheet:
-
MSP430F235TRGCR.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 64VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,326
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Product details
Overview
MSP430F235TRGCR 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 MSP430F235TRGCR datasheet, MSP430F235TRGCR pinout, MSP430F235TRGCR application, or MSP430F235TRGCR equivalent, key selection criteria include its 64-pin QFN (RGC) package, 1.8–3.6 V supply range, sub-1 µs wake-up time, ADC12 channel count, and USCI peripheral configuration versus family variants like MSP430F247TRGCR or MSP430F233TRGCR.
Technical Context
The MSP430F235TRGCR implements a 16-bit CPU with constant generators and hardware multiplier for optimized code efficiency in low-power embedded control. Its basic clock system integrates a calibrated DCO (±1% over temperature/voltage), LF oscillator, and support for external crystals (XT1 up to 32 kHz, XT2 up to 16 MHz).
It features dual USCI modules: USCI_A0 supports enhanced UART with auto-baud detection and IrDA encoding/decoding, while USCI_B0 provides synchronous SPI and I²C master/slave operation. The ADC12 module 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 deterministic real-time control in energy-constrained systems. |
| Flash / RAM | 16KB+256B flash memory with security fuse; 2KB RAM - sufficient for firmware with protocol stacks and sensor data buffering. |
| ADC Resolution | 12-bit SAR ADC with 8 input channels, internal reference, and autoscan - supports precision analog sensing without external components. |
| Power Modes | Active mode: 270 µA at 1 MHz/2.2 V; Standby: 0.3 µA; Off (RAM retention): 0.1 µA - extends coin-cell battery life to years. |
| Timers | Timer_A3 (3 capture/compare registers); Timer_B3 (3 capture/compare, no shadow registers) - suitable for PWM generation and input capture in motor/sensor timing. |
| USCI Peripherals | USCI_A0 (UART/IrDA/SPI); USCI_B0 (SPI/I²C); no USCI_A1/B1 - limits dual-protocol concurrency but fits single-bus sensor hub designs. |
| Supply Range | 1.8 V to 3.6 V - compatible with single Li-ion, Li-po, or dual-AA battery systems without LDO 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 precise timing; drives analog comparator output directly to GPIO. |
| P2.6/ADC12CLK/CA6 | ADC conversion clock / Comparator_A input | Allows synchronous sampling control; shares pin with analog comparator input for compact signal conditioning. |
| P3.0/UCB0STE/UCA0CLK | USCI_B0 slave transmit enable / USCI_A0 clock | Supports daisy-chain SPI slaves or master clock distribution in mixed-protocol interfaces. |
| P6.0/A0–P6.7/A7 | Analog inputs A0–A7 | Eight dedicated ADC input pins mapped to Port 6 - simplifies routing for multi-sensor analog front-ends. |
| RST/NMI | Reset / nonmaskable interrupt | Single pin serves both power-on reset and critical fault handling - reduces board space and ESD protection complexity. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-fast wake-up | Sub-1 µs transition from standby to active mode - eliminates latency in event-driven sensing (e.g., motion-triggered data logging). |
| Integrated comparator | Comparator_A with six selectable inputs and rail-to-rail output - replaces external comparators in threshold-detection circuits. |
| Programmable SVS | Supply voltage supervisor with user-selectable trip level - prevents erratic operation during brownout without external reset IC. |
| Bootstrap loader | On-chip BSL enables field firmware updates via UART without JTAG hardware - lowers production and maintenance cost. |
| Digital-controlled oscillator | Calibrated DCO with four factory-trimmed frequencies (±1%) - eliminates need for external crystal in cost-sensitive timing applications. |
Applications
| Portable Gas Detector | Smart Water Meter |
|---|---|
Use Scenario: Battery-powered handheld unit detecting CO, CH₄, or O₂ using electrochemical or NDIR sensors with analog outputs. IC Role / Device Role / Timing Role: Main controller executing sensor calibration, ADC sampling, UART-based display communication, and low-power sleep scheduling. Use Value: 12-bit ADC with internal reference ensures stable gas concentration calculation; 0.1 µA off-mode extends 10-year battery life with periodic wake-ups. | Use Scenario: Ultrasonic or magnetic flow meter with pulse output, temperature compensation, and RF (e.g., NB-IoT) telemetry. IC Role / Device Role / Timing Role: System-on-chip managing flow pulse counting, temperature ADC, real-time clock, and UART-to-modem interface. Use Value: Dual USCI modules allow simultaneous UART (to modem) and SPI (to ultrasonic transducer driver) - no external bus arbitration required. |
| Industrial Temperature Logger | Wireless Sensor Node |
Use Scenario: DIN-rail mounted device logging ambient and probe temperatures every 15 minutes, storing data in flash, and uploading via RS-485. IC Role / Device Role / Timing Role: Data acquisition engine with RTC, flash wear-leveling, and isolated RS-485 transceiver control. Use Value: Hardware multiplier accelerates CRC-16 computation for data integrity; 2KB RAM buffers 72 hours of 15-min samples before upload. | Use Scenario: Zigbee or Sub-GHz mesh node measuring humidity, light, and acceleration, transmitting via TI CC2530/CC1310. IC Role / Device Role / Timing Role: Sensor fusion processor aggregating I²C sensor data, applying digital filtering, and preparing packets for radio MCU. Use Value: USCI_B0 in I²C mode interfaces multiple sensors (HTU21D, OPT3001, BMA253) with shared bus; low active current minimizes duty-cycle impact. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F233TRGCR | 8KB+256B flash, 1KB RAM, one USCI module (USCI_A0 only), reduced Timer_B (no shadow registers) | Lower memory and peripheral count - suitable for simpler sensor endpoints with single UART interface | Select when firmware size < 64 KB and only one serial interface is needed; saves cost in high-volume deployments. |
| MSP430F247TRGCR | 32KB+256B flash, 4KB RAM, two USCI_A and two USCI_B modules, Timer_B7 with shadow registers | Higher memory and dual-USCI concurrency - required for protocol bridging (e.g., UART-to-I²C) or complex state machines | Choose when running Modbus RTU + local I²C sensor hub; supports larger bootloader and encrypted OTA updates. |
Compared with MSP430F233TRGCR, the MSP430F235TRGCR adds 8KB flash and a second USCI for flexible dual-serial connectivity; versus MSP430F247TRGCR, it trades memory and Timer_B capability for lower cost and power in mid-complexity applications.
Availability
MSP430F235TRGCR is available at Aetrix Electronics and suitable for portable instrumentation, industrial data loggers, and battery-powered sensor systems requiring stable component supply, long-term lifecycle assurance, and TI-authorized traceability.
Supply support for MSP430F235TRGCR 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 MSP430F235TRGCR belongs to the MSP430F2xx ultra-low-power microcontroller product line, designed specifically for extended-battery-life applications in measurement, sensing, and portable control systems.
FAQ
What is the maximum operating frequency of the MSP430F235TRGCR?
The MSP430F235TRGCR supports internal DCO frequencies up to 16 MHz, with four factory-calibrated settings accurate to ±1% across voltage and temperature. External clock sources (XT2) can also drive the system up to 16 MHz, enabling high-speed ADC sampling or UART baud rates up to 1 Mbps in active mode.
Does the MSP430F235TRGCR include a hardware multiplier?
Yes, the MSP430F235TRGCR integrates a 16-bit hardware multiplier supporting MPY, MPYS, MAC, and MACS instructions. This accelerator significantly improves performance for fixed-point math in sensor signal processing, CRC computation, and filter algorithms - reducing active-mode execution time and overall energy consumption.
How many analog input channels does the ADC12 module support on the MSP430F235TRGCR?
The ADC12 module on the MSP430F235TRGCR supports eight analog input channels (A0–A7), all accessible via Port 6 pins (P6.0–P6.7). It includes internal reference voltage generation, sample-and-hold, and autoscan mode - allowing unattended sequential conversion of all eight channels with minimal CPU intervention.
Is the MSP430F235TRGCR pin-compatible with other devices in the MSP430F2xx family?
The MSP430F235TRGCR shares the same 64-pin QFN (RGC) package and pinout with MSP430F233TRGCR, MSP430F247TRGCR, and MSP430F248TRGCR. However, peripheral enablement differs: MSP430F235TRGCR lacks USCI_A1 and USCI_B1 present on F24x devices, and its Timer_B has only three capture/compare registers versus seven on F24x - requiring firmware adaptation for full feature parity.
What debug interface does the MSP430F235TRGCR support?
The MSP430F235TRGCR includes a standard 4-wire JTAG interface (TCK, TMS, TDI/TCLK, TDO/TDI) with Embedded Emulation Module (EEM) support. It is fully compatible with TI's MSP-FET430UIF debugger and Code Composer Studio v6+, enabling full-speed debugging, flash programming, and real-time peripheral register inspection during development.
MSP430F235TRGCR 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:
MSP430F235TRGCR FAQ
1.How can I place an order for MSP430F235TRGCR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F235TRGCR 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 MSP430F235TRGCR reliable?
The price and inventory of MSP430F235TRGCR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F235TRGCR is usually 5 days.
3.What payment methods are accepted for MSP430F235TRGCR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F235TRGCR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F235TRGCR?
MSP430F235TRGCR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F235TRGCR 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 MSP430F235TRGCR?
For technical support, including MSP430F235TRGCR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F235TRGCR requirements.
6.How does Aetrix verify that MSP430F235TRGCR is sourced from the original manufacturer or authorized distributors?
All MSP430F235TRGCR 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 MSP430F235TRGCR meets industry standards.
7.What is the process for return or replacement of MSP430F235TRGCR?
All MSP430F235TRGCR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F235TRGCR, 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 MSP430F235TRGCR part is unused and in its original packaging.
Return procedure for MSP430F235TRGCR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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