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Texas Instruments MSP430G2201IRSA16R
- Part No.:
- MSP430G2201IRSA16R
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 16-VQFN Exposed Pad
- Datasheet:
-
MSP430G2201IRSA16R.pdf
- Description:
- IC MCU 16BIT 2KB FLASH 16QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,020
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Product details
Overview
MSP430G2201IRSA16R from Texas Instruments is an ultralow-power 16-bit RISC microcontroller with 2 KB flash, 128 B RAM, and a 16-bit Timer_A featuring two capture/compare registers. It operates from 1.8 V to 3.6 V, achieves active-mode current of 220 µA at 1 MHz/2.2 V, and supports five power-saving modes - including sub-1-µs wake-up from standby - for battery-powered sensor nodes and portable instrumentation.
For engineers reviewing the MSP430G2201IRSA16R datasheet, MSP430G2201IRSA16R pinout, MSP430G2201IRSA16R application, or MSP430G2201IRSA16R equivalent, key selection criteria include its QFN-16 package, absence of integrated analog comparator (distinguishing it from G2x11 variants), verified 16-MHz DCO performance at ≥3.3 V, and Spy-Bi-Wire debug interface compatibility.
Technical Context
The MSP430G2201IRSA16R implements a 16-bit CPU with seven addressing modes and 51-instruction set, executing register-to-register operations in one MCLK cycle. Its basic clock module integrates a digitally controlled oscillator (DCO), internal low-frequency oscillator (VLO), and external 32-kHz crystal support - enabling flexible clock sourcing for ACLK, SMCLK, and MCLK domains.
It features a single 8-bit I/O port (P1) with full interrupt capability on all pins, plus two P2 I/O bits, each with individually configurable pullup/pulldown resistors and edge-selectable interrupts. The device lacks Comparator_A+ circuitry - confirmed by Table 1 and functional block diagrams - and omits CAx input multiplexing present in MSP430G2x11 family members.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 16 general-purpose registers; enables efficient C code execution and deterministic real-time response. |
| Flash / RAM | 2 KB flash program memory + 128 B RAM; sufficient for compact firmware with limited data buffering in sensor edge nodes. |
| Supply Range | 1.8 V to 3.6 V; supports direct connection to single-cell Li-ion (3.0–3.6 V) or dual-cell alkaline (2.4–3.2 V) batteries. |
| Active Current | 220 µA at 1 MHz, 2.2 V; enables >1-year operation on CR2032 coin cell in duty-cycled sensing applications. |
| Low-Power Modes | LPM4 draws 0.1 µA (RAM retention); allows indefinite sleep between wake-up events without data loss. |
| Max System Clock | 16 MHz at VCC ≥3.3 V; provides adequate throughput for UART communication, PWM generation, and ADC sampling control. |
| Debug Interface | Spy-Bi-Wire (2-wire JTAG); reduces PCB footprint vs. 4-pin JTAG and enables in-system programming via TEST/SBWTCK pins. |
Pinout & Package
Package: 16-pin QFN (RSA), 3 mm × 3 mm, 0.4 mm pitch, exposed thermal pad recommended to be connected to DVSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 / DVCC | Power supply | Main digital supply input; requires local 100-nF decoupling to ground. |
| 14 / DVSS | Ground reference | Digital ground return; must be connected to PCB ground plane with low-inductance path. |
| 10 / RST/NMI/SBWTDIO | Reset & debug I/O | Active-low reset input; also serves as bidirectional data line for Spy-Bi-Wire programming. |
| 11 / TEST/SBWTCK | Debug clock input | Input-only clock for Spy-Bi-Wire; pulled high internally; no external pull required during normal operation. |
| 12 / XOUT/P2.7 | Oscillator output / GPIO | Crystal oscillator output terminal; functions as general-purpose I/O when LFXT1 is disabled. |
| 13 / XIN/P2.6/TA0.1 | Oscillator input / timer output | Crystal input or external clock source; also outputs TA0.1 compare signal when configured. |
| P1.0–P1.7 | General-purpose I/O | Eight programmable digital I/O pins with interrupt, pullup/down, and peripheral function multiplexing (e.g., TA0CLK, SMCLK). |
Key Features
| Feature | Design Value |
|---|---|
| Ultralow-power operation | 0.1 µA LPM4 current enables multi-year battery life in intermittent-sensing systems without external power management ICs. |
| Fast wake-up from LPM3/LPM4 | <1 µs wake-up time from standby allows precise timing-critical event response (e.g., RF packet reception, sensor trigger). |
| Integrated clock system | Calibrated DCO + VLO + crystal support eliminates need for external clock components in most timing-sensitive applications. |
| On-chip flash programming | Single-supply in-system programming via Spy-Bi-Wire enables field firmware updates without dedicated programmers or high-voltage sources. |
| Hardware timer subsystem | Timer_A2 with two capture/compare registers supports PWM generation, input capture, interval timing, and quadrature decoding. |
Applications
| Wireless Sensor Node | Portable Medical Monitor |
|---|---|
|
Use Scenario: Battery-powered temperature/humidity node transmitting data via sub-GHz RF transceiver on scheduled intervals. IC Role / Device Role / Timing Role: Main controller managing sensor readout, data formatting, low-power RF transmission timing, and deep-sleep scheduling. Use Value: 0.1 µA LPM4 current extends CR2032 battery life beyond 2 years; 16-MHz DCO ensures accurate UART baud rate generation for RF IC interface. |
Use Scenario: Handheld pulse oximeter requiring low-noise analog front-end control and LED drive timing. IC Role / Device Role / Timing Role: System manager coordinating LED pulsing sequence, ADC sampling synchronization, and display refresh. Use Value: Sub-1-µs wake-up guarantees precise inter-pulse timing; 2 KB flash accommodates calibration tables and BLE advertising stack. |
| Industrial Control Panel | Smart Meter Tamper Detection |
|
Use Scenario: DIN-rail mounted HMI with pushbuttons, LEDs, and RS-485 communication in factory environments. IC Role / Device Role / Timing Role: Local intelligence handling button debouncing, LED status sequencing, and protocol translation. Use Value: Five low-power modes reduce standby consumption during idle periods; 16-pin QFN simplifies layout in space-constrained enclosures. |
Use Scenario: Electricity meter detecting enclosure opening or magnetic tampering using reed switch and Hall sensor inputs. IC Role / Device Role / Timing Role: Always-on monitor sampling discrete inputs and triggering secure log entries upon violation. Use Value: Brownout detector prevents erratic behavior during voltage dips; 0.5 µA LPM3 current permits continuous monitoring on backup capacitor. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430G2231IRSA16 | Includes 10-channel 10-bit ADC; same 2 KB flash, 128 B RAM, QFN-16 package. | Required where analog sensor interfacing (e.g., thermistor, potentiometer) is needed without external ADC. | Select when analog measurement capability is mandatory; otherwise MSP430G2201IRSA16 offers lower cost and identical power/performance for digital-only tasks. |
| MSP430G2553IRHA40 | 40-pin QFN; adds USCI (UART/SPI/I²C), 16-channel ADC, and 16 KB flash; higher pin count and larger footprint. | Suitable for designs needing multiple serial interfaces or expanded I/O beyond 10 pins. | Choose only if additional peripherals justify larger package and increased BOM cost; not a drop-in replacement due to pinout and package mismatch. |
Compared with MSP430G2231IRSA16 and MSP430G2553IRHA40, the MSP430G2201IRSA16 delivers optimal cost and power efficiency for pure digital control tasks - trading ADC and serial interfaces for minimal die size, lowest active/standby current, and smallest PCB footprint in QFN-16.
Availability
MSP430G2201IRSA16R is available at Aetrix Electronics and suitable for wireless sensor nodes, portable medical monitors, and industrial control panels requiring stable component supply across extended production lifecycles.
Supply support for MSP430G2201IRSA16R 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 specializing in analog, embedded processing, and connectivity technologies with over 90 years of innovation in low-power design.
The MSP430G2xx series targets cost-sensitive, battery-operated applications demanding ultralow power, integrated peripherals, and rapid development - exemplified by the MSP430G2201IRSA16R's optimized balance of flash, I/O, and energy efficiency.
FAQ
What is the maximum operating frequency of the MSP430G2201IRSA16R?
The MSP430G2201IRSA16R supports up to 16 MHz system clock (MCLK) when VCC ≥3.3 V, with DCO calibration data pre-programmed in flash segment A. At 2.2 V, maximum frequency is limited to 6 MHz per the recommended operating conditions table. This frequency governs CPU instruction rate, Timer_A timing resolution, and peripheral clock speeds - all directly scalable with DCO tuning.
Does the MSP430G2201IRSA16R include an analog comparator or ADC?
No, the MSP430G2201IRSA16R does not integrate an analog comparator or ADC. It belongs to the G2x01 subfamily, which excludes Comparator_A+ circuitry - confirmed by Table 1 (Comp_A+ column shows "–") and functional block diagrams. For analog sensing, external components or migration to MSP430G2x11/G2x31 variants is required.
What debug interface does the MSP430G2201IRSA16R support?
The MSP430G2201IRSA16R uses the 2-wire Spy-Bi-Wire (SBW) interface, accessible via pins RST/NMI/SBWTDIO (Pin 10) and TEST/SBWTCK (Pin 11). This interface enables full in-system programming and debugging without requiring a 4-pin JTAG header, reducing PCB routing complexity and board area versus legacy JTAG implementations.
How many I/O pins does the MSP430G2201IRSA16R provide?
The MSP430G2201IRSA16R provides ten usable I/O pins: eight from Port 1 (P1.0–P1.7) and two from Port 2 (P2.6 and P2.7). All ten support interrupt-on-change, individually configurable pullup/pulldown resistors, and peripheral function multiplexing - such as Timer_A outputs or crystal connections - as defined in Table 2 of the SLAS695I datasheet.
What power-saving modes are available on the MSP430G2201IRSA16R?
The MSP430G2201IRSA16R implements six operating modes: Active Mode (AM) and five low-power modes (LPM0–LPM4). LPM4 draws just 0.1 µA at 2.2 V with RAM retention, while LPM3 consumes 0.5–1.5 µA depending on ACLK source. These modes are software-selectable via SR register bits and enable precise trade-offs between responsiveness and energy conservation in battery-powered systems.
MSP430G2201IRSA16R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 16-VQFN Exposed Pad
- Series:
- MSP430G2xx
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- MSP430 CPU16
- Core Size:
- 16-Bit
- Speed:
- 16MHz
- Connectivity:
- -
- Peripherals:
- Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O:
- 10
- Program Memory Size:
- 2KB (2K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 128 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:
MSP430G2201IRSA16R FAQ
1.How can I place an order for MSP430G2201IRSA16R through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430G2201IRSA16R 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 MSP430G2201IRSA16R reliable?
The price and inventory of MSP430G2201IRSA16R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430G2201IRSA16R is usually 5 days.
3.What payment methods are accepted for MSP430G2201IRSA16R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430G2201IRSA16R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430G2201IRSA16R?
MSP430G2201IRSA16R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430G2201IRSA16R 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 MSP430G2201IRSA16R?
For technical support, including MSP430G2201IRSA16R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430G2201IRSA16R requirements.
6.How does Aetrix verify that MSP430G2201IRSA16R is sourced from the original manufacturer or authorized distributors?
All MSP430G2201IRSA16R 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 MSP430G2201IRSA16R meets industry standards.
7.What is the process for return or replacement of MSP430G2201IRSA16R?
All MSP430G2201IRSA16R units undergo pre-shipment inspection (PSI). If there is an issue with MSP430G2201IRSA16R, 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 MSP430G2201IRSA16R part is unused and in its original packaging.
Return procedure for MSP430G2201IRSA16R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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