Specifications
| Type | Description |
|---|---|
| Part Number | MSP430FR2433 |
| Manufacturer | Texas Instruments |
| Product Type | Mixed-signal FRAM microcontroller |
| Category | Microcontroller |
| Component Type | MCU |
| Package Case | VQFN-24 (RGE) 4 mm x 4 mm; DSBGA-24 (YQW) 2.29 mm x 2.34 mm |
| CPU Architecture | 16-bit RISC |
| Maximum Clock Frequency | 16 MHz |
| Supply Voltage Range | 1.8 V to 3.6 V |
| Active Mode Current | 126 µA/MHz typical |
| Standby Current | <1 µA |
| LPM3.5 RTC Current | 730 nA typical |
| Shutdown Current | 16 nA typical |
| ADC Resolution | 10 bit |
| ADC Channels | 8 channels |
| ADC Sample Rate | 200 ksps |
| Internal Reference Voltage | 1.5 V |
| UART/SPI/IrDA Interfaces | 2 eUSCI_A modules |
| SPI/I2C Interfaces | 1 eUSCI_B module |
| Timer Count | 4 x 16-bit timers |
| Timer_A3 Modules | 2 timers, 3 capture/compare registers each |
| Timer_A2 Modules | 2 timers, 2 capture/compare registers each |
| Real-Time Counter | 1 x 16-bit counter-only RTC |
| CRC Module | 16-bit CRC |
| Nonvolatile Memory | Up to 15.5 KB FRAM |
| Program FRAM | 15 KB |
| Information FRAM | 512 B |
| SRAM | 4 KB |
| FRAM Write Endurance | 10^15 write cycles |
| FRAM Features | Built-in ECC and configurable write protection |
| FRAM-to-SRAM Ratio | Up to 4:1 |
| GPIO Count | 19 I/Os |
| Interrupt Pins | 16 interrupt pins |
| Low-Frequency Reference Oscillator | 32 kHz RC oscillator |
| DCO Frequency | 16 MHz |
| DCO Accuracy | ±1% |
| Very-Low-Frequency Oscillator | 10 kHz |
| External Crystal Oscillator | 32 kHz |
| MCLK Prescaler | 1 to 128 |
| SMCLK Prescaler | 1, 2, 4, or 8 |
| Package Option | MSP430FR2433IRGE, VQFN-24, 4 mm x 4 mm |
| Package Option | MSP430FR2433IYQW, DSBGA-24, 2.29 mm x 2.34 mm |
| Recommended Decoupling Capacitors | 4.7 µF to 10 µF and 0.1 µF, ±5% accuracy |
| Datasheet Status | request_only |
Product Overview
The MSP430FR2433 is a Texas Instruments mixed-signal FRAM microcontroller built around a 16-bit RISC core. The device supports clock frequencies up to 16 MHz and operates across a 1.8 V to 3.6 V supply range, with the minimum supply voltage restricted by SVS levels. Low-power operating points include 126 µA/MHz typical active current, standby current below 1 µA with VLO, 730 nA typical LPM3.5 RTC current with a 32768-Hz crystal, and 16 nA typical shutdown current in LPM4.5.
On-chip memory includes up to 15.5 KB FRAM, with the MSP430FR2433 family member providing 15 KB program FRAM, 512 B information FRAM, and 4 KB SRAM. FRAM features include 10^15 write-cycle endurance, built-in ECC, configurable write protection, and up to a 4:1 FRAM-to-SRAM ratio.
Integrated peripherals include a 10-bit ADC with 8 channels, 200 ksps sample-and-hold, and a 1.5 V internal reference. Communications are handled by two eUSCI_A modules for UART, IrDA, and SPI plus one eUSCI_B module for SPI and I2C. Package options are MSP430FR2433IRGE in VQFN-24 and MSP430FR2433IYQW in DSBGA-24.
Key Features
- 16-bit RISC core with clock support up to 16 MHz
- 1.8 V to 3.6 V operating supply range
- 126 µA/MHz typical current in active mode
- 16 nA typical shutdown current in LPM4.5
- Up to 15.5 KB low-power FRAM memory
- 15 KB program FRAM and 4 KB SRAM
- 10-bit ADC with 8 channels at 200 ksps
- Two eUSCI_A modules for UART, IrDA, and SPI
- One eUSCI_B module for SPI and I2C
- Four 16-bit timers plus counter-only RTC
- 19 I/Os available in the VQFN-24 package
- Built-in FRAM ECC and configurable write protection
Typical Applications
- Low-power RTC-based embedded nodes
- FRAM data logging designs
- ADC-based sensor measurement
- UART, SPI, IrDA serial control
- SPI and I2C peripheral interfaces
- Timer-based control functions
- Interrupt wake from low-power modes
- Compact VQFN or DSBGA assemblies
Procurement Notes
When requesting a quote for MSP430FR2433, buyers should confirm the manufacturer, package or case, required quantity, target date code, compliance documents, packing method, destination country and expected delivery schedule.
If alternatives are acceptable, buyers should share the approved vendor list, required electrical or optical limits, package constraints and qualification requirements. Any alternative part should be reviewed by the buyer's engineering team before production use.
For MCU, processor and logic IC sourcing, package, operating voltage, temperature grade, speed or frequency grade, firmware or mask version, lifecycle status and programming requirements should be checked before approval.
FAQ
What type of microcontroller is the MSP430FR2433?
The MSP430FR2433 is a Texas Instruments mixed-signal FRAM microcontroller. It uses a 16-bit RISC core, supports clock frequencies up to 16 MHz, and includes FRAM, SRAM, ADC, timer, RTC, CRC, GPIO, and serial communication peripherals.
What memory is integrated in the MSP430FR2433?
The MSP430FR2433 provides up to 15.5 KB FRAM. For this family member, the listed memory includes 15 KB program FRAM, 512 B information FRAM, and 4 KB SRAM. FRAM includes built-in ECC and configurable write protection.
Which package options are listed for MSP430FR2433?
The device information table lists MSP430FR2433IRGE in a VQFN-24 package measuring 4 mm x 4 mm and MSP430FR2433IYQW in a DSBGA-24 package measuring 2.29 mm x 2.34 mm.
What analog and communication peripherals does MSP430FR2433 include?
The MSP430FR2433 includes a 10-bit ADC with 8 channels, 200 ksps sample-and-hold, and a 1.5 V internal reference. Communications include two eUSCI_A modules for UART, IrDA, and SPI, plus one eUSCI_B module for SPI and I2C.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: June 30, 2026.
This page is based on manufacturer datasheet information and LDeepAI sourcing review. Specifications should be verified against the official manufacturer datasheet before final procurement or design approval. Final electrical, optical and reliability approval should be confirmed by the buyer's engineering team.