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Texas Instruments MSP430G2101IN14
- Part No.:
- MSP430G2101IN14
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
MSP430G2101IN14.pdf
- Description:
- IC MCU 16BIT 1KB FLASH 14DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,861
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Product details
Overview
MSP430G2101IN14 from Texas Instruments is an ultralow-power 16-bit RISC microcontroller in a 14-pin PDIP package, featuring 1 kB Flash, 128 B RAM, a 16-bit Timer_A with two capture/compare registers, and operation across 1.8–3.6 V. It delivers 220 µA active current at 1 MHz/2.2 V and supports five power-saving modes including sub-1 µs wake-up from standby - ideal for battery-powered sensor nodes and portable instrumentation.
For engineers reviewing the MSP430G2101IN14 datasheet, MSP430G2101IN14 pinout, MSP430G2101IN14 application, or MSP430G2101IN14 equivalent, this page provides verified technical context, validated pin functions, real-world use cases, and confirmed alternative options - all aligned to TI's SLAS695I (Feb 2013) specification for the exact IN14 PDIP variant.
Technical Context
The MSP430G2101IN14 implements a 16-bit RISC CPU with constant generators and seven addressing modes, executing register-to-register operations in one CPU cycle. Its clock system 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.
This device belongs to the MSP430G2x01 series and lacks the Comparator_A+ module present in G2x11 variants. It supports Spy-Bi-Wire programming via TEST/SBWTCK and RST/NMI/SBWTDIO pins, and includes brownout detection, watchdog timer (WDT+), and I/O with individually configurable pullup/pulldown resistors on all 10 GPIO pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 16 registers and 51-instruction set - enables compact, deterministic code execution for real-time embedded control. |
| Memory | 1 kB Flash (main memory) + 256 B information memory + 128 B RAM - sufficient for firmware storage, calibration data, and runtime variables in small-footprint applications. |
| Supply Voltage | 1.8 V to 3.6 V - compatible with single-cell Li-ion, alkaline, or coin-cell batteries without external regulation. |
| Active Current | 220 µA at 1 MHz, 2.2 V - enables multi-year operation in always-on sensor monitoring with periodic wake-up. |
| Low-Power Modes | LPM4 draws 0.1 µA (RAM retention) - preserves state during extended sleep while minimizing battery drain. |
| Timer Resource | 16-bit Timer_A2 with two capture/compare registers - supports PWM generation, input capture, interval timing, and interrupt-driven event sequencing. |
| I/O Count | 10 GPIO pins (P1.0–P1.7, P2.6–P2.7) - provides sufficient digital interface for sensors, LEDs, buttons, and basic communication peripherals. |
Pinout & Package
Package: 14-pin Plastic Dual Inline Package (PDIP), N suffix, 0.3-inch body width, through-hole mounting.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (DVCC) | Power supply | Positive supply rail (1.8–3.6 V); must be decoupled locally to reduce noise and ensure stable core operation. |
| 14 (DVSS) | Ground reference | Digital ground return path; requires low-impedance connection to system ground plane. |
| 10 (RST/NMI/SBWTDIO) | Reset & debug I/O | Active-low reset input; also serves as bidirectional Spy-Bi-Wire data line for programming and debugging. |
| 11 (TEST/SBWTCK) | Debug clock input | Input for Spy-Bi-Wire clock signal; used exclusively during programming and emulation - not for general-purpose I/O. |
| P1.0–P1.7 | General-purpose I/O | Eight programmable digital I/O pins with interrupt capability, edge-selectable triggers, and configurable pullup/pulldown resistors. |
| P2.6, P2.7 | General-purpose I/O | Two additional digital I/O pins; P2.6 supports TA0.1 output; P2.7 supports XOUT function when crystal oscillator is enabled. |
| XIN/P2.6 | Clock input | Crystal oscillator input terminal; shared with P2.6 - requires external 32.768 kHz crystal and load capacitors for low-power real-time clock operation. |
| XOUT/P2.7 | Clock output | Crystal oscillator output terminal; shared with P2.7 - completes crystal circuit when external watch crystal is used. |
Key Features
| Feature | Design Value |
|---|---|
| Ultralow-power operation | 0.1 µA in LPM4 with RAM retention - extends battery life in maintenance-free remote sensing deployments. |
| Fast wake-up capability | <1 µs transition from standby to active mode - enables responsive event-driven behavior without latency penalties. |
| On-chip debug interface | Spy-Bi-Wire over two pins (TEST/SBWTCK and RST/NMI/SBWTDIO) - eliminates need for dedicated JTAG header, saving PCB space and cost. |
| Integrated clock system | DCO calibrated to 1 MHz ±2% at 2.2 V, plus LF oscillator and crystal support - removes external clock components in most designs. |
| Programmable code protection | Security fuse prevents unauthorized readout of Flash contents - protects firmware IP in production devices. |
Applications
| Smart Sensor Node | Portable Data Logger |
|---|---|
|
Use Scenario: Battery-powered temperature/humidity sensor collecting readings every 30 seconds and transmitting via UART or RF link. IC Role / Device Role / Timing Role: Central controller managing ADC sampling, data formatting, low-power scheduling, and serial interface timing. Use Value: LPM4 current of 0.1 µA enables >5-year operation on a CR2032 coin cell, while sub-1 µs wake-up ensures precise sampling intervals. |
Use Scenario: Handheld environmental monitor logging CO₂, light, and motion data to internal Flash for later USB retrieval. IC Role / Device Role / Timing Role: Real-time data aggregator with timestamping via ACLK-driven Timer_A, Flash write management, and button-triggered wake-up. Use Value: 1 kB Flash stores ~2000 timestamped samples; brownout detector prevents corruption during battery voltage sag. |
| Industrial Control Panel | Energy Harvesting Endpoint |
|
Use Scenario: DIN-rail mounted status indicator with LED drivers, pushbutton inputs, and RS-485 interface for factory floor equipment. IC Role / Device Role / Timing Role: I/O expander and protocol handler - debounces switches, drives LEDs, and manages half-duplex RS-485 timing via Timer_A outputs. Use Value: 10 GPIO pins directly interface to 8 LEDs + 2 buttons; 16-bit Timer_A generates precise 9600-baud bit timing without external components. |
Use Scenario: Solar-powered soil moisture sensor using photovoltaic cell and supercapacitor, waking only when threshold crossed. IC Role / Device Role / Timing Role: Power-aware supervisor - monitors harvested voltage, initiates measurement only above 2.2 V, and enters LPM4 between cycles. Use Value: Minimum 2.2 V Flash programming voltage matches typical supercapacitor operating range; ultra-low LPM3 current (0.5 µA) minimizes leakage loss. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430G2201IN14 | 2 kB Flash, same 128 B RAM, identical pinout and peripherals - no comparator, same Timer_A2 and clock system. | Supports larger firmware images (e.g., added BLE stack layer or enhanced diagnostics) without changing PCB layout. | Select when future firmware growth is anticipated but analog comparison is unnecessary. |
| MSP430G2111IN14 | Includes 8-channel Comparator_A+ module; otherwise identical Flash/RAM, pinout, and power specs. | Enables slope A/D conversion, battery voltage supervision, or zero-crossing detection without external op-amps. | Select when analog signal monitoring (e.g., battery health, thermistor biasing) is required alongside core MCU functions. |
Compared with MSP430G2201IN14, the MSP430G2101IN14 trades Flash capacity for cost-sensitive deployment; compared with MSP430G2111IN14, it omits the comparator to reduce silicon area and unit price - making it optimal for pure digital control tasks where analog front-end is handled externally.
Availability
MSP430G2101IN14 is available at Aetrix Electronics and suitable for smart sensor nodes, portable data loggers, and industrial control panels requiring stable component supply, long-term manufacturability, and consistent parametric performance across temperature and voltage ranges.
Supply support for MSP430G2101IN14 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 decades of expertise in low-power microcontrollers and industrial-grade reliability.
The MSP430G2xx family was designed specifically for ultralow-power, cost-sensitive embedded applications - emphasizing extended battery life, minimal external components, and seamless integration into sensor, metering, and portable instrumentation systems.
FAQ
What is the maximum operating frequency of the MSP430G2101IN14?
The MSP430G2101IN14 supports a maximum MCLK frequency of 16 MHz at VCC ≥ 3.3 V with 50% ±10% duty cycle. At 2.2 V, the maximum is 6 MHz. The DCO is factory-calibrated to 1 MHz at 2.2 V, and higher frequencies require software tuning. All timing-critical peripherals - including Timer_A2 and UART - derive clocks from MCLK, SMCLK, or ACLK, so system-level timing must respect these limits. The MSP430G2101IN14 does not include hardware PLL or frequency multiplier.
Does the MSP430G2101IN14 support in-system programming?
Yes, the MSP430G2101IN14 supports in-system programming via its integrated Spy-Bi-Wire interface using only two pins: TEST/SBWTCK and RST/NMI/SBWTDIO. No external programming voltage is required - VCC powers the entire process. Flash memory can be erased and reprogrammed in segments (512-byte main memory or 64-byte information memory), and security fuse programming prevents unauthorized readback. This capability enables field firmware updates and eliminates the need for socketed programming fixtures.
How many GPIO pins does the MSP430G2101IN14 provide?
The MSP430G2101IN14 provides 10 GPIO pins: eight on Port 1 (P1.0–P1.7) and two on Port 2 (P2.6 and P2.7). All pins support digital input/output, interrupt-on-change, and individually configurable pullup/pulldown resistors. P1.0–P1.2 and P1.4–P1.7 also serve secondary functions including Timer_A signals (TA0CLK, TA0.0, TA0.1), SMCLK, and JTAG/Spy-Bi-Wire test signals. P2.6 and P2.7 double as XIN and XOUT for crystal oscillator support.
Is the MSP430G2101IN14 pin-compatible with other MSP430G2x01 variants in PDIP?
Yes, the MSP430G2101IN14 is fully pin-compatible with all other MSP430G2x01 and MSP430G2x11 devices offered in the 14-pin PDIP (N) package, including MSP430G2201IN14 and MSP430G2111IN14. Pin assignments for DVCC, DVSS, RST/NMI/SBWTDIO, TEST/SBWTCK, XIN/P2.6, XOUT/P2.7, and P1.0–P1.7 are identical across these variants. Functional differences (e.g., Flash size, comparator presence) do not affect physical layout - enabling drop-in replacement during design iteration or qualification.
What power-saving modes are available on the MSP430G2101IN14?
The MSP430G2101IN14 offers five software-selectable low-power modes: LPM0 through LPM4. LPM0 disables the CPU but keeps SMCLK and ACLK active; LPM3 stops MCLK and SMCLK while retaining ACLK (e.g., from 32-kHz crystal); LPM4 disables all clocks and draws just 0.1 µA with RAM retention. Wake-up from any mode occurs in under 1 µs via interrupts from Timer_A, GPIO, or comparator (if present). These modes are controlled via SCG1, SCG0, OSCOFF, and CPUOFF bits in the status register.
MSP430G2101IN14 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 14-DIP (0.300", 7.62mm)
- Series:
- MSP430G2xx
- Packaging:
- Bulk
- 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:
- 1KB (1K 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:
- Through Hole
- Supplier Device Package:
MSP430G2101IN14 FAQ
1.How can I place an order for MSP430G2101IN14 through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430G2101IN14 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 MSP430G2101IN14 reliable?
The price and inventory of MSP430G2101IN14 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430G2101IN14 is usually 5 days.
3.What payment methods are accepted for MSP430G2101IN14?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430G2101IN14 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430G2101IN14?
MSP430G2101IN14 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430G2101IN14 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 MSP430G2101IN14?
For technical support, including MSP430G2101IN14 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430G2101IN14 requirements.
6.How does Aetrix verify that MSP430G2101IN14 is sourced from the original manufacturer or authorized distributors?
All MSP430G2101IN14 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 MSP430G2101IN14 meets industry standards.
7.What is the process for return or replacement of MSP430G2101IN14?
All MSP430G2101IN14 units undergo pre-shipment inspection (PSI). If there is an issue with MSP430G2101IN14, 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 MSP430G2101IN14 part is unused and in its original packaging.
Return procedure for MSP430G2101IN14:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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