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Texas Instruments MSP430G2233IPW20R
- Part No.:
- MSP430G2233IPW20R
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MSP430G2233IPW20R.pdf
- Description:
- IC MCU 16BIT 2KB FLASH 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,736
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Product details
Overview
MSP430G2233IPW20R from Texas Instruments is an ultra-low-power 16-bit RISC mixed-signal microcontroller with 2 KB flash, 256 B RAM, 10-bit 8-channel ADC, two 16-bit Timer_A modules, USCI (UART/I²C/SPI), and capacitive-touch I/O capability - deployed in battery-powered sensor nodes and portable measurement systems operating from 1.8 V to 3.6 V.
For engineers reviewing the MSP430G2233IPW20R datasheet, MSP430G2233IPW20R pinout, MSP430G2233IPW20R application, or MSP430G2233IPW20R equivalent, key selection criteria include active-mode current at 1 MHz (230 µA @ 2.2 V), wake-up time from standby (<1 µs), ADC resolution and channel count, USCI interface flexibility, and TSSOP-20 package compatibility with space-constrained PCB layouts.
Technical Context
The MSP430G2233IPW20R implements a 16-bit CPU with constant generators and a digitally controlled oscillator (DCO) supporting calibrated frequencies up to 16 MHz. Its clock system integrates internal LF oscillator, 32-kHz crystal support, and external digital clock input - enabling precise timing control across five low-power modes.
Peripherals include two independent Timer_A modules (each with three capture/compare registers), a 10-bit ADC with internal reference and autoscan, and dual USCI modules: USCI_A0 (UART/LIN/IrDA/SPI) and USCI_B0 (SPI/I²C). All I/O pins support interrupt capability and configurable pullup/pulldown resistors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 62.5-ns instruction cycle time - enables deterministic real-time execution for sensor sampling and control loops. |
| Flash / RAM | 2 KB flash memory and 256 B RAM - sufficient for compact firmware with ADC data buffering and basic communication stacks. |
| ADC Resolution | 10-bit SAR ADC with 8 input channels and autoscan - supports simultaneous multi-sensor analog acquisition without CPU intervention. |
| Supply Voltage | 1.8 V to 3.6 V operating range - compatible with single-cell Li-ion, Li-polymer, or two-cell alkaline battery systems. |
| Active Current | 230 µA at 1 MHz, 2.2 V - enables >1-year operation on a CR2032 coin cell in duty-cycled sensor applications. |
| Wake-up Time | <1 µs from standby mode - critical for responsive event-driven sensing and ultra-low-duty-cycle operation. |
| USCI Interfaces | USCI_A0 (UART/LIN/IrDA/SPI) + USCI_B0 (SPI/I²C) - provides native connectivity to UART sensors, I²C temperature/humidity ICs, and SPI flash or displays. |
Pinout & Package
TSSOP-20 package (6.5 mm × 4.4 mm body size), lead pitch 0.65 mm, RoHS-compliant, surface-mountable with exposed thermal pad not present - optimized for automated assembly and thermal performance in compact industrial and consumer modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - DVCC | Digital supply voltage | Primary 1.8–3.6 V power input for core logic and digital I/O banks. |
| 2 - P1.0/TA0CLK/ACLK/A0 | Multi-function I/O | Configurable as timer clock input, ACLK output, or ADC channel 0 - enables flexible clock tree routing and analog front-end integration. |
| 5 - P1.3/ADC10CLK/VREF-/VEREF-/A3 | Analog reference & ADC input | Provides ADC negative reference (VREF−), conversion clock output, and analog input A3 - supports ratiometric measurements and internal reference calibration. |
| 6 - P1.4/SMCLK/UCB0STE/UCA0CLK/A4 | System clock & USCI control | Delivers SMCLK to peripherals, controls USCI_B0 slave transmit enable, and serves as ADC input A4 - unifies timing and interface control in minimal-pin-count designs. |
| 16 - RST/NMI/SBWTDIO | Reset & debug I/O | Combines reset assertion, non-maskable interrupt, and Spy-Bi-Wire bidirectional debug data - eliminates need for dedicated debug header in production units. |
| 17 - TEST/SBWTCK | JTAG/Spy-Bi-Wire clock | Enables in-system programming and debugging via 2-wire interface - reduces test point count and simplifies board layout. |
| 19 - XIN/P2.6/TA0.1 | Clock input & timer I/O | Accepts 32-kHz crystal input or external clock signal while doubling as Timer0_A compare output - supports precision RTC and PWM generation. |
| 20 - DVSS | Digital ground | Reference return path for digital supply - must be connected to low-impedance ground plane to maintain noise immunity for ADC and timers. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power standby mode | 0.5 µA consumption - extends battery life in always-on wake-on-event sensor monitors. |
| Capacitive-touch I/O capability | Up to 24 pins support CTSxx library - enables direct implementation of touch buttons/sliders without external controller. |
| Built-in brownout detector | Monitors VCC and triggers reset below programmable threshold - prevents erratic operation during battery sag or power ramp-up. |
| On-chip emulation logic | Integrated Spy-Bi-Wire interface - allows full-speed debugging and flash programming using only two pins (SBWTDIO, SBWTCK). |
| Programmable code protection | Security fuse disables JTAG access after programming - protects firmware IP in high-volume OEM deployments. |
Applications
| Smart Sensor Node | Capacitive Touch Interface |
|---|---|
|
Use Scenario: Battery-powered environmental sensor collecting temperature, humidity, and light data every 10 seconds, then transmitting via UART to a gateway. IC Role / Device Role: Central controller managing ADC sampling, data processing, USCI_A0 UART transmission, and ultra-low-power sleep/wake scheduling. Use Value: 230 µA active current and sub-1 µs wake-up minimize energy per measurement cycle, enabling >2-year operation on a single CR2032 cell. |
Use Scenario: Touch-sensitive control panel for HVAC or lighting with 8-button layout and proximity wake-up. IC Role / Device Role: Dedicated capacitive-touch processor scanning electrodes, debouncing inputs, and communicating button states over I²C. Use Value: Native CTSxx peripheral support eliminates external touch controller, reducing BOM cost and PCB area by 30% versus discrete solutions. |
| Portable Medical Monitor | Low-Cost Industrial Data Logger |
|
Use Scenario: Handheld pulse oximeter acquiring analog photodiode signals, computing SpO₂, and displaying results on segmented LCD. IC Role / Device Role: Mixed-signal SoC performing 10-bit ADC acquisition, digital filtering, algorithm execution, and LCD segment driving via GPIO. Use Value: Integrated 10-bit ADC with internal reference and autoscan handles dual-channel synchronous sampling without external op-amps or muxes. |
Use Scenario: DIN-rail mounted temperature logger recording ambient readings every minute and storing 72 hours of data in flash. IC Role / Device Role: Standalone data acquisition engine controlling DS18B20 1-Wire sensors, managing flash wear leveling, and supporting USB-to-UART host upload. Use Value: USCI_A0 UART with automatic baud-rate detection (LIN mode) simplifies host-side driver development and enables plug-and-play configuration via terminal. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430G2333IPW20R | 4 KB flash, 256 B RAM, same peripherals and pinout - higher firmware capacity for complex sensor fusion or BLE stack integration. | Preferred when firmware exceeds 2 KB or requires bootloader-resident OTA update capability. | Select for future-proofing firmware growth without PCB redesign. |
| MSP430G2213IPW20R | No ADC10 module - retains 2 KB flash, 256 B RAM, timers, USCI, but lacks analog front-end. | Suitable for purely digital control tasks (e.g., LED drivers, relay sequencers) where analog sensing is handled externally. | Choose when cost reduction is critical and ADC functionality is unnecessary or implemented off-chip. |
Compared with MSP430G2333IPW20R, the MSP430G2233IPW20R trades flash capacity for lower unit cost and identical low-power performance; versus MSP430G2213IPW20R, it adds integrated 10-bit ADC capability at minimal power penalty - making it optimal for analog-intensive, cost-sensitive edge nodes.
Availability
MSP430G2233IPW20R is available at Aetrix Electronics and suitable for smart sensor nodes, capacitive touch interfaces, portable medical monitors, and low-cost industrial data loggers requiring stable component supply, long-term manufacturability, and TI-qualified automotive-grade traceability.
Supply support for MSP430G2233IPW20R 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 technologies - with over 50 years of microcontroller innovation focused on energy efficiency and system integration.
The MSP430G2x33 product line targets ultra-low-power, cost-optimized embedded applications including battery-powered sensing, human interface, and industrial monitoring - emphasizing minimal BOM count, fast time-to-market, and robust field reliability.
FAQ
What is the maximum system clock frequency supported by the MSP430G2233IPW20R?
The MSP430G2233IPW20R supports up to 16 MHz MCLK when VCC ≥ 3.3 V, 12 MHz at 2.7 V, and 6 MHz at 1.8 V - with DCO calibration providing four factory-trimmed frequencies. This allows scalable performance tuning based on supply voltage and power budget constraints in the final design.
Does the MSP430G2233IPW20R include hardware support for capacitive touch sensing?
Yes, the MSP430G2233IPW20R supports capacitive touch sensing on up to 24 I/O pins using the built-in CTSxx peripheral and TI's CapTIvate™ software library - eliminating external RC networks or dedicated touch controllers while maintaining ultra-low active and standby current.
Can the MSP430G2233IPW20R operate from a single 1.8-V supply?
Yes, the MSP430G2233IPW20R is fully specified for operation from 1.8 V to 3.6 V, including flash programming (minimum 2.2 V required for write/erase) and all peripheral functions - making it ideal for single-cell lithium or two-cell alkaline battery systems with wide discharge curves.
How many ADC channels does the MSP430G2233IPW20R support, and what is its resolution?
The MSP430G2233IPW20R integrates a 10-bit successive-approximation ADC (ADC10) with 8 selectable input channels (A0–A7), internal reference, sample-and-hold, and autoscan mode - enabling efficient multi-channel analog acquisition without CPU overhead.
Is the MSP430G2233IPW20R pin-compatible with other devices in the MSP430G2x33 family?
Yes, the MSP430G2233IPW20R shares identical TSSOP-20 pinout with MSP430G2333IPW20R and MSP430G2433IPW20R - allowing drop-in replacement for flash capacity upgrades without PCB modification, provided firmware accommodates increased memory size.
MSP430G2233IPW20R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 20-TSSOP (0.173", 4.40mm Width)
- Series:
- MSP430G2xx
- 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, PWM, WDT
- Number of I/O:
- 16
- Program Memory Size:
- 2KB (2K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 256 x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 8x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430G2233IPW20R FAQ
1.How can I place an order for MSP430G2233IPW20R through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430G2233IPW20R 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 MSP430G2233IPW20R reliable?
The price and inventory of MSP430G2233IPW20R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430G2233IPW20R is usually 5 days.
3.What payment methods are accepted for MSP430G2233IPW20R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430G2233IPW20R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430G2233IPW20R?
MSP430G2233IPW20R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430G2233IPW20R 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 MSP430G2233IPW20R?
For technical support, including MSP430G2233IPW20R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430G2233IPW20R requirements.
6.How does Aetrix verify that MSP430G2233IPW20R is sourced from the original manufacturer or authorized distributors?
All MSP430G2233IPW20R 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 MSP430G2233IPW20R meets industry standards.
7.What is the process for return or replacement of MSP430G2233IPW20R?
All MSP430G2233IPW20R units undergo pre-shipment inspection (PSI). If there is an issue with MSP430G2233IPW20R, 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 MSP430G2233IPW20R part is unused and in its original packaging.
Return procedure for MSP430G2233IPW20R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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