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Texas Instruments MSP430G2312IPW20R
- Part No.:
- MSP430G2312IPW20R
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MSP430G2312IPW20R.pdf
- Description:
- IC MCU 16BIT 4KB FLASH 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,805
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Product details
Overview
MSP430G2312IPW20R from Texas Instruments is an ultra-low-power 16-bit RISC mixed-signal microcontroller in 20-pin TSSOP package, featuring 4 KB flash, 256 B RAM, one 16-bit Timer_A with three capture/compare registers, Universal Serial Interface (USI) for SPI/I²C, and an on-chip analog comparator. It operates from 1.8 V to 3.6 V and supports five power-saving modes - ideal for battery-powered sensor nodes and portable instrumentation.
For engineers reviewing the MSP430G2312IPW20R datasheet, MSP430G2312IPW20R pinout, MSP430G2312IPW20R application, or MSP430G2312IPW20R equivalent, key selection criteria include its 4 KB flash capacity, 256 B RAM, USI-based serial communication, comparator-only analog front-end (no ADC10), and TSSOP-20 footprint compatibility with legacy MSP430G2x12 designs.
Technical Context
The MSP430G2312IPW20R implements a 16-bit CPU with seven addressing modes and 51 instructions, executing register-to-register operations in one CPU clock cycle. Its basic clock module integrates DCO (calibrated up to 16 MHz), LF oscillator, and external crystal support via XIN/XOUT pins.
It features two 8-bit I/O ports (P1 and P2), each with individually configurable pullup/pulldown resistors, interrupt edge select, and capacitive-touch enable bits. The USI module supports both 3-wire SPI and I²C protocols using shared SDA/SCL/SDO/SDI pins on Port 1, while the Comparator_A+ module provides eight selectable input channels and programmable hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 16 general-purpose registers and constant generators for optimized code efficiency |
| Flash / RAM | 4 KB flash memory for firmware storage; 256 B RAM for runtime variables and stack - sufficient for compact sensor firmware |
| Supply Voltage | 1.8 V to 3.6 V operation - enables direct use with single-cell Li-ion, alkaline, or coin-cell batteries |
| Power Modes | Five software-selectable low-power modes including LPM4 (0.1 µA off-mode with RAM retention) |
| Timer | One 16-bit Timer_A (TA0) with three capture/compare registers - supports PWM generation, input capture, and interval timing |
| Serial Interface | Universal Serial Interface (USI) supporting hardware SPI and I²C - reduces CPU overhead for sensor communication |
| Analog Peripherals | Comparator_A+ with eight input channels and programmable reference - enables battery monitoring, threshold detection, and slope ADC |
Pinout & Package
Package: 20-pin TSSOP (PW), 0.65 mm pitch, body size 6.5 mm × 4.4 mm, thermal pad not required.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (DVCC) | Supply voltage input | Primary digital supply rail - must be decoupled locally with 100 nF ceramic capacitor |
| 2 (P1.0/TA0CLK/ACLK/A0/CA0) | Multi-function I/O | Configurable as timer clock input, ACLK output, analog comparator input CA0, or general-purpose I/O |
| 16 (DVSS) | Digital ground | Digital reference return path - requires low-impedance connection to system ground plane |
| 19 (XIN/P2.6/TA0.1) | Clock input / I/O | Crystal oscillator input or Timer_A compare output TA0.1 - internal pullup enabled when used as GPIO |
| 20 (DVSS) | Digital ground | Second digital ground pin - improves noise immunity in high-speed or mixed-signal layouts |
| RST/NMI/SBWTDIO (Pin 10) | Reset / debug I/O | Active-low reset input, non-maskable interrupt, and Spy-Bi-Wire data I/O - enables in-system programming without external voltage |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low standby current | 0.5 µA in LPM3 mode - extends battery life in wake-on-event sensor applications |
| Fast wake-up time | <1 µs from standby to active mode - enables responsive real-time event handling |
| On-chip emulation logic | Spy-Bi-Wire interface with two-wire debug - eliminates need for JTAG header space and simplifies PCB layout |
| Capacitive-touch I/O | Up to 16 pins support pin-oscillator mode - allows implementation of touch buttons without external components |
| Programmable security fuse | Code protection via blown security fuse - prevents unauthorized firmware readout in production units |
Applications
| Smart Sensor Node | Battery-Powered Metering |
|---|---|
Use Scenario: Compact environmental sensor node measuring temperature and humidity with periodic wireless transmission. IC Role / Device Role / Timing Role: Main controller managing sensor polling, data preprocessing, low-power sleep scheduling, and USI-driven communication with RF transceiver. Use Value: 0.5 µA standby current and sub-1 µs wake-up minimize energy per measurement cycle, extending coin-cell life beyond 5 years. | Use Scenario: Portable water/gas meter with tamper detection and local display. IC Role / Device Role / Timing Role: System supervisor monitoring battery voltage via Comparator_A+, driving LCD segments, and logging events to flash memory. Use Value: Integrated comparator eliminates external voltage monitor IC; 4 KB flash accommodates firmware + calibration tables + event logs. |
| Industrial Control Panel | Capacitive Touch Interface |
Use Scenario: Local HMI for HVAC or lighting control with push-button inputs and LED feedback. IC Role / Device Role / Timing Role: Input scanner and LED driver controller interfacing with mechanical switches and discrete LEDs via Port 1/2. Use Value: Eight individually configurable I/O pins per port with programmable pullups reduce BOM count; LPM3 mode cuts idle power to near-zero. | Use Scenario: Appliance control panel with touch-sensitive buttons replacing mechanical switches. IC Role / Device Role / Timing Role: Capacitive-touch engine using built-in pin-oscillator circuitry on P1.x/P2.x pins to detect finger proximity. Use Value: No external RC network or dedicated touch controller required - reduces layer count and assembly cost in TSSOP-based designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430G2212IPW20 | 2 KB flash, 128 B RAM, same peripherals and pinout | Limited firmware complexity; insufficient for feature-rich sensor fusion or protocol stacks | Select when firmware size ≤2 KB and RAM usage <128 B - reduces cost without changing PCB |
| MSP430G2332IPW20 | 4 KB flash, 256 B RAM, adds 10-bit ADC10 module (8-channel) | Enables direct analog sensor interfacing without external ADC; increases power during conversion | Choose when analog signal acquisition (e.g., thermistor, potentiometer) is required alongside comparator functions |
Compared with MSP430G2212IPW20, the MSP430G2312IPW20R offers double flash and RAM for enhanced firmware capability; compared with MSP430G2332IPW20, it omits ADC10 to reduce conversion-related current draw and silicon cost - making it optimal for comparator-centric, ultra-low-quiescent systems.
Availability
MSP430G2312IPW20R is available at Aetrix Electronics and suitable for smart sensor nodes, battery-powered metering, industrial control panels, and capacitive touch interfaces requiring stable component supply and long-term manufacturability.
Supply support for MSP430G2312IPW20R 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 with emphasis on energy efficiency and system integration.
The MSP430G2x12 product line targets ultra-low-power embedded applications where extended battery life, minimal BOM count, and robust analog sensing (via comparator) are critical - such as portable instrumentation and maintenance-free IoT endpoints.
FAQ
Does MSP430G2312IPW20R include an analog-to-digital converter (ADC)?
No, MSP430G2312IPW20R does not integrate an ADC10 module. It belongs to the G2x12 series, which features only the Comparator_A+ peripheral - confirmed by TI's SLAS722G datasheet Table 1 and functional block diagrams. For ADC functionality, consider MSP430G2352IPW20 or MSP430G2332IPW20. The MSP430G2312IPW20R relies on external ADCs or comparator-based slope-conversion techniques.
What is the maximum operating frequency of MSP430G2312IPW20R?
The MSP430G2312IPW20R supports a digitally controlled oscillator (DCO) calibrated up to 16 MHz, as documented in TI's SLAS722G datasheet Section "Oscillator and System Clock". This frequency is achievable across the full 1.8–3.6 V supply range and specified temperature conditions, enabling real-time processing in time-critical sensor applications using the MSP430G2312IPW20R.
Can MSP430G2312IPW20R be programmed in-circuit without external voltage?
Yes, MSP430G2312IPW20R supports serial onboard programming via Spy-Bi-Wire using only the RST/NMI/SBWTDIO and TEST/SBWTCK pins - no external programming voltage is required. This capability is explicitly stated in the "FEATURES" section of SLAS722G and enables field firmware updates and simplified production programming of the MSP430G2312IPW20R.
How many I/O pins does MSP430G2312IPW20R provide in the TSSOP-20 package?
In the 20-pin TSSOP (PW) package, MSP430G2312IPW20R provides 16 usable I/O pins: eight on Port 1 (P1.0–P1.7) and eight on Port 2 (P2.0–P2.7), as verified in Table 2 ("Terminal Functions") and the PW package pinout diagram of SLAS722G. Pins 1 (DVCC), 16 (DVSS), 19 (XIN/P2.6), and 20 (DVSS) are power/ground/clock and not general-purpose I/O.
Is MSP430G2312IPW20R pin-compatible with other devices in the MSP430G2x12 family?
Yes, MSP430G2312IPW20R shares identical pinout and electrical characteristics with all other MSP430G2x12 variants in the 20-pin TSSOP (PW20) package - including MSP430G2212IPW20 and MSP430G2412IPW20 - as confirmed by TI's SLAS722G Table 1 and "DEVICE PINOUTS" section. This allows direct substitution within the same footprint when flash/RAM or peripheral requirements align.
MSP430G2312IPW20R 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, SPI, USI
- Peripherals:
- Brown-out Detect/Reset, DMA, POR, PWM, WDT
- Number of I/O:
- 16
- Program Memory Size:
- 4KB (4K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 256 x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- -
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430G2312IPW20R FAQ
1.How can I place an order for MSP430G2312IPW20R through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430G2312IPW20R 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 MSP430G2312IPW20R reliable?
The price and inventory of MSP430G2312IPW20R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430G2312IPW20R is usually 5 days.
3.What payment methods are accepted for MSP430G2312IPW20R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430G2312IPW20R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430G2312IPW20R?
MSP430G2312IPW20R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430G2312IPW20R 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 MSP430G2312IPW20R?
For technical support, including MSP430G2312IPW20R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430G2312IPW20R requirements.
6.How does Aetrix verify that MSP430G2312IPW20R is sourced from the original manufacturer or authorized distributors?
All MSP430G2312IPW20R 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 MSP430G2312IPW20R meets industry standards.
7.What is the process for return or replacement of MSP430G2312IPW20R?
All MSP430G2312IPW20R units undergo pre-shipment inspection (PSI). If there is an issue with MSP430G2312IPW20R, 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 MSP430G2312IPW20R part is unused and in its original packaging.
Return procedure for MSP430G2312IPW20R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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