Specifications
| Type | Description |
|---|---|
| Part Number | MSP430G2403 |
| Manufacturer | Texas Instruments |
| Product Type | Ultra-low-power mixed-signal MCU |
| Category | Microcontroller |
| Component Type | MCU |
| Package Case | 32-QFN, 28-TSSOP, 20-TSSOP, 20-PDIP |
| Supply Voltage Range | 1.8 to 3.6 V |
| Active Mode Current | 230 uA at 1 MHz, 2.2 V |
| Standby Mode Current | 0.5 uA in standby mode |
| Off Mode Current | 0.1 uA with RAM retention |
| Power-Saving Modes | 5 modes |
| Wakeup Time From Standby | <1 us from standby mode to active mode |
| CPU Architecture | 16-bit RISC |
| Instruction Cycle Time | 62.5 ns at maximum CPU clock operation |
| Maximum Internal Frequency | 16 MHz internal calibrated DCO frequency |
| Calibrated Frequencies | 4 frequencies |
| Clock Sources | LF oscillator, 32-kHz crystal, external digital clock source, DCO, VLO |
| Timers | 2 x 16-bit Timer_A, 3 capture/compare registers each |
| Capacitive-Touch I/O Pins | Up to 24 pins, package dependent |
| Communication Interface | USCI_A0 and USCI_B0 |
| UART Features | Enhanced UART with automatic baud-rate detection, LIN support |
| Serial Interfaces | UART, LIN, IrDA, SPI, I2C |
| ADC | Not present |
| Brownout Detector | Integrated |
| Programming Interface | Serial onboard programming, no external programming voltage required |
| Code Protection | Programmable code protection by security fuse |
| Debug Interface | Spy-Bi-Wire |
| Flash Memory | 8 KB |
| RAM | 512 B |
| Bootloader | 1 |
| Embedded Emulation Module | 1 |
| Timer Configuration | 2xTA3 |
| USCI Count | 1 |
| I/O Count | 24 in 32-QFN or 28-TSSOP package |
| I/O Count | 16 in 20-TSSOP or 20-PDIP package |
| Datasheet Status | request_only |
Product Overview
The Texas Instruments MSP430G2403 is an ultra-low-power mixed-signal MCU based on a 16-bit RISC CPU. It supports a 1.8 to 3.6 V operating supply range, 16 MHz maximum calibrated internal DCO frequency, and 62.5 ns instruction cycle time at maximum CPU clock operation.
Power behavior is centered on five low-power operating modes, with 230 uA active current at 1 MHz and 2.2 V, 0.5 uA standby current, and 0.1 uA off-mode current with RAM retention. Wakeup from standby to active mode is specified at under 1 us.
For embedded control, MSP430G2403 provides 8 KB flash, 512 B RAM, two 16-bit Timer_A blocks with three capture/compare registers each, up to 24 capacitive-touch I/O pins depending on package, and one USCI_A0/USCI_B0 communication interface set. Supported serial modes include UART, LIN, IrDA, SPI, and I2C. It is offered in 32-QFN, 28-TSSOP, 20-TSSOP, and 20-PDIP packages.
Key Features
- 1.8 to 3.6 V operating supply range
- 230 uA active current at 1 MHz and 2.2 V
- 0.5 uA standby current and 0.1 uA off current
- Five low-power modes with under 1 us standby wakeup
- 16-bit RISC CPU with 62.5 ns instruction cycle
- 16 MHz calibrated internal DCO with four calibrated frequencies
- Two 16-bit Timer_A blocks with three capture/compare registers
- USCI_A0 and USCI_B0 support UART, SPI, and I2C
- Enhanced UART includes automatic baud-rate detection and LIN support
- Up to 24 capacitive-touch I/O pins depending on package
- 8 KB flash memory and 512 B RAM
- Spy-Bi-Wire debug with serial onboard programming support
Typical Applications
- Capacitive-touch control panels
- Battery-powered embedded controllers
- Low-power serial communication nodes
- Timer-based control circuits
- LIN or UART interface designs
- SPI and I2C peripheral control
- Compact 16-bit MCU systems
Procurement Notes
When requesting a quote for MSP430G2403, 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 supply voltage range does MSP430G2403 support?
MSP430G2403 supports an operating supply voltage range of 1.8 to 3.6 V. This range is specified for the device operating supply and supports its ultra-low-power mixed-signal MCU use case.
Does MSP430G2403 include an ADC peripheral?
No. The extracted device comparison data marks the ADC10 channels for MSP430G2403 as not present, so this part should not be selected when an integrated ADC is required.
Which serial interfaces are available on MSP430G2403?
MSP430G2403 includes USCI_A0 and USCI_B0. The supported serial interface capability includes UART, LIN, IrDA, SPI, and I2C, with enhanced UART features including automatic baud-rate detection and LIN support.
How much memory does MSP430G2403 provide?
MSP430G2403 provides 8 KB of flash memory and 512 B of RAM. The extracted facts also identify one bootloader entry and one embedded emulation module entry for this device.
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.