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Texas Instruments MSP430F2001IRSAT
- Part No.:
- MSP430F2001IRSAT
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 16-VQFN Exposed Pad
- Datasheet:
-
MSP430F2001IRSAT.pdf
- Description:
- IC MCU 16BIT 1KB FLASH 16QFN
- Quantity:
- Payment:
- Shipping:
Inventory:526
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Product details
Overview
MSP430F2001IRSAT from Texas Instruments is an ultra-low-power 16-bit RISC mixed-signal microcontroller featuring 1KB flash + 256B RAM, 128B SRAM, a 16-bit Timer_A with two capture/compare registers, and an analog comparator. It operates from 1.8 V to 3.6 V and supports five power-saving modes, enabling sub-1 µs wake-up from standby - ideal for battery-powered sensor nodes and portable measurement systems.
For engineers reviewing the MSP430F2001IRSAT datasheet, MSP430F2001IRSAT pinout, MSP430F2001IRSAT application, or MSP430F2001IRSAT equivalent, key selection criteria include its 14-pin TSSOP (RSAT) package, Spy-Bi-Wire debug interface, absence of ADC or USI peripherals, and compatibility with TI's MSP430x2xx toolchain and low-power firmware frameworks.
Technical Context
The MSP430F2001IRSAT implements a 16-bit CPU with seven addressing modes and constant generators for high code efficiency. Its basic clock module integrates a digitally controlled oscillator (DCO) calibrated to ±1% at 1 MHz, 8 MHz, 12 MHz, and 16 MHz, plus internal LF and external crystal (32 kHz) support - all configurable via software-controlled register settings.
It features a single 8-bit I/O port (P1) with individually programmable pullup/pulldown resistors and edge-selectable interrupts on all pins, plus two P2 I/O bits. The analog comparator supports eight input channels (CA0–CA7), rail-to-rail operation, and output routing to P1.3 or P1.7 - used for threshold detection or slope A/D conversion without ADC hardware.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 16 general-purpose registers and 62.5-ns instruction cycle at 16 MHz |
| Memory | 1KB flash (main) + 256B information memory + 128B RAM - supports in-system programming via Spy-Bi-Wire |
| Supply Voltage | 1.8 V to 3.6 V - enables direct operation from single-cell Li-ion or two-cell alkaline batteries |
| Ultra-Low Power | Active mode: 220 µA @ 1 MHz / 2.2 V; Standby: 0.5 µA; Off mode (RAM retention): 0.1 µA |
| Wake-Up Time | <1 µs from LPM4 to active mode - critical for duty-cycled sensor sampling with minimal latency |
| Comparator | Single analog comparator with 8-channel input mux (CA0–CA7), programmable hysteresis, and output routing |
| Timer | 16-bit Timer_A2 with two capture/compare registers, supporting PWM, interval timing, and event counting |
Pinout & Package
Package: 14-pin TSSOP (RSAT), RoHS-compliant, 5.0 mm × 4.4 mm footprint with 0.65 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0/TACLK/ACLK/CA0 | Port 1 bit 0 / Timer clock / ACLK output / Comparator input | Primary system clock input path; also serves as comparator channel CA0 and ACLK source for low-frequency peripherals |
| P1.1/TA0/CA1 | Port 1 bit 1 / Timer_A CCI0A / Comparator input | Supports capture of external events or comparator-triggered timing; dual-role simplifies signal routing in compact designs |
| P1.2/TA1/CA2 | Port 1 bit 2 / Timer_A CCI1A / Comparator input | Second capture input for differential timing or independent comparator channel CA2 |
| P1.3/CAOUT/CA3 | Port 1 bit 3 / Comparator output / Comparator input | Dedicated comparator output pin; also accepts CA3 input - enables self-test or feedback configurations |
| P1.4/SMCLK/CA4/TCK | Port 1 bit 4 / SMCLK output / Comparator input / JTAG clock | Provides sub-main clock to peripherals; shares pin with JTAG test clock - requires careful debug vs. runtime pin assignment |
| P1.5/TA0/CA5/TMS | Port 1 bit 5 / Timer_A CCI0A / Comparator input / JTAG mode select | Shared timer/comparator/JTAG function - TMS must be held stable during debug initialization |
| P1.6/TA1/CA6/TDI/TCLK | Port 1 bit 6 / Timer_A CCI1A / Comparator input / JTAG data in | Enables synchronized debugging and timer capture on same pin; TDI functionality active only during Spy-Bi-Wire session |
| P1.7/CAOUT/CA7/TDO/TDI | Port 1 bit 7 / Comparator output / Comparator input / JTAG data out/in | Configurable as comparator output (CAOUT) or bidirectional JTAG data - selected via JTAG instruction |
| XIN/P2.6/TA1 | Clock input / Port 2 bit 6 / Timer_A CCI1A | Accepts 32-kHz crystal or external clock; doubles as Timer_A input - supports low-power real-time clocking |
| XOUT/P2.7 | Clock output / Port 2 bit 7 | Drives crystal oscillator; usable as general I/O only after disabling oscillator driver via P2SEL register |
| RST/NMI/SBWTDIO | Reset / Non-maskable interrupt / Spy-Bi-Wire data I/O | Multi-function pin: resets device on low pulse; accepts NMI; carries bidirectional debug data in Spy-Bi-Wire mode |
| TEST/SBWTCK | Test mode select / Spy-Bi-Wire clock | Activates JTAG/Spy-Bi-Wire interface when pulled high; required for programming and in-circuit debugging |
| VCC | Power supply | Core and I/O supply (1.8–3.6 V); must be decoupled with 100 nF ceramic capacitor near pin |
| VSS | Ground reference | Digital ground return; connects to PCB ground plane with low-inductance path for noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| Five software-selectable low-power modes | Enables precise power-state control - LPM4 draws only 0.1 µA with RAM retention, extending coin-cell life to years |
| On-chip emulation logic with Spy-Bi-Wire interface | Eliminates need for external JTAG adapter; uses only two pins (RST/SBWTCK) for full debug and flash programming |
| Factory-calibrated DCO with four frequencies | Provides 1/8/12/16 MHz clock accuracy within ±1% without external crystal - reduces BOM cost and board space |
| Code protection via security fuse | Prevents unauthorized read-out of flash contents; once blown, flash memory becomes permanently inaccessible |
| Individual pullup/pulldown resistor control per I/O pin | Removes need for external biasing components; simplifies PCB layout and improves ESD robustness on unused inputs |
| 16-bit Timer_A2 with two capture/compare registers | Supports simultaneous PWM generation and input capture - e.g., motor control with position feedback in one peripheral |
Applications
| Temperature Sensor Node | Smart Smoke Detector |
|---|---|
Use Scenario: Battery-powered wireless node measuring ambient temperature every 30 seconds using thermistor or diode sensor. IC Role / Device Role / Timing Role: MSP430F2001IRSAT acts as system controller and analog threshold detector - comparator monitors sensor voltage against reference, triggering wake-up only on delta change. Use Value: Sub-1 µs wake-up and 0.1 µA off-mode current enable >5-year operation on CR2032; no ADC required reduces power and firmware complexity. |
Use Scenario: Standalone optical smoke detector with self-test, alarm drive, and low-battery warning. IC Role / Device Role / Timing Role: MSP430F2001IRSAT manages photodiode signal conditioning via comparator, drives piezo buzzer via Timer_A PWM, and monitors battery voltage using internal reference. Use Value: Integrated comparator eliminates external op-amp; 1.8 V minimum supply allows direct use of aging alkaline cells; brownout detector ensures reliable reset during voltage sag. |
| Industrial Pushbutton Interface | RF Remote Control Transmitter |
Use Scenario: DIN-rail mounted panel with 8 mechanical pushbuttons feeding into a centralized controller. IC Role / Device Role / Timing Role: MSP430F2001IRSAT serves as debounced I/O expander - scans P1 pins, filters contact bounce in firmware, and transmits state over UART or SPI to host MCU. Use Value: Eight programmable P1 I/O pins with edge-triggered interrupts eliminate polling overhead; internal pullups remove 8 external resistors. |
Use Scenario: Small-form-factor remote for HVAC or lighting, transmitting encoded commands via ASK/OOK RF link. IC Role / Device Role / Timing Role: MSP430F2001IRSAT encodes button presses, generates precise carrier timing via Timer_A, and controls RF transistor gate using P1.3 comparator output as digital switch. Use Value: Comparator output directly drives RF stage without buffer; 16 MHz DCO ensures accurate 315/433 MHz carrier timing; low active current extends AA battery life to >2 years. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F2011IRSAT | 2KB flash + 256B RAM; identical peripherals and pinout | Supports larger firmware images - e.g., BLE stack integration or multi-sensor fusion algorithms | Select when firmware size exceeds 1KB or future scalability is required; same PCB layout and debug workflow |
| MSP430F2002IRSAT | Adds 10-bit 200-ksps ADC with 8 channels and USI (SPI/I²C); same flash/RAM | Enables direct analog sensor interfacing (e.g., light, humidity) without external ADC; supports I²C sensor networks | Choose when analog signal acquisition is needed - trade-off is higher active current (250 µA vs. 220 µA) and added peripheral complexity |
Compared with MSP430F2001IRSAT, MSP430F2011IRSAT offers double flash capacity without altering power profile or pin compatibility, while MSP430F2002IRSAT adds essential analog and serial interfaces at the cost of increased design validation effort for new peripherals.
Availability
MSP430F2001IRSAT is available at Aetrix Electronics and suitable for battery-powered sensor nodes, industrial pushbutton interfaces, and standalone smoke detectors requiring stable component supply and long-term lifecycle support.
Supply support for MSP430F2001IRSAT 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 focused on analog and embedded processing technologies, serving industrial, automotive, and consumer markets with energy-efficient solutions.
The MSP430F20xx series was designed specifically for ultra-low-power portable measurement and sensing applications - prioritizing nanowatt operation, fast wake-up, and integrated analog functions to minimize external components.
FAQ
What is the maximum operating frequency of the MSP430F2001IRSAT?
The MSP430F2001IRSAT supports a maximum CPU clock frequency of 16 MHz via its factory-calibrated digitally controlled oscillator (DCO). This frequency is achievable across the full 1.8 V to 3.6 V supply range and is stable to ±1% without external crystal - verified in TI's SLAS491I datasheet revision December 2012. The MSP430F2001IRSAT does not include a PLL; all clock sources derive from the DCO, LF oscillator, or external crystal.
Does the MSP430F2001IRSAT include an analog-to-digital converter (ADC)?
No, the MSP430F2001IRSAT does not include an ADC. It belongs to the MSP430F20x1 family variant, which features only an analog comparator (Comparator_A+) with eight input channels (CA0–CA7) and output routing. ADC functionality is present only in the MSP430F20x2 (10-bit ADC10) and MSP430F20x3 (16-bit SD16_A) variants. This makes the MSP430F2001IRSAT optimal for threshold-based sensing where quantized voltage levels are unnecessary.
What debug interface does the MSP430F2001IRSAT support?
The MSP430F2001IRSAT supports the Spy-Bi-Wire (SBW) interface - a two-wire variant of JTAG - using pins RST/NMI/SBWTDIO and TEST/SBWTCK. It enables full in-system programming, flash erase/write, and real-time debugging without requiring a dedicated 4-pin JTAG header. TI's MSP-FET and compatible tools (e.g., MSP430 LaunchPad with SBW firmware) fully support the MSP430F2001IRSAT.
Can the MSP430F2001IRSAT operate from a single 1.8 V supply?
Yes, the MSP430F2001IRSAT is fully specified to operate from 1.8 V to 3.6 V. At 1.8 V, it maintains full functionality including 16 MHz DCO operation (calibrated), comparator performance, and Timer_A timing accuracy. Its ultra-low active current (220 µA @ 1 MHz) and 0.1 µA off-mode current make it especially suited for single-cell lithium or regulated 1.8 V systems where headroom is constrained.
Is the MSP430F2001IRSAT pin-compatible with other MSP430F20xx devices in TSSOP packages?
Yes, the MSP430F2001IRSAT is pin-compatible with all MSP430F20xx devices offered in the 14-pin TSSOP (PW/RSAT) package, including MSP430F2011IRSAT, MSP430F2002IRSAT, and MSP430F2012IRSAT. Pin functions match exactly per Table 2 of SLAS491I, allowing drop-in replacement for flash/RAM or peripheral upgrades - provided firmware accounts for differences in ADC, USI, or comparator-only behavior.
MSP430F2001IRSAT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 16-VQFN Exposed Pad
- Series:
- MSP430F2xx
- 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:
- 1KB (1K x 8 + 256B)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 128 x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- Slope A/D
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430F2001IRSAT FAQ
1.How can I place an order for MSP430F2001IRSAT through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F2001IRSAT 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 MSP430F2001IRSAT reliable?
The price and inventory of MSP430F2001IRSAT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F2001IRSAT is usually 5 days.
3.What payment methods are accepted for MSP430F2001IRSAT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F2001IRSAT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F2001IRSAT?
MSP430F2001IRSAT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F2001IRSAT 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 MSP430F2001IRSAT?
For technical support, including MSP430F2001IRSAT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F2001IRSAT requirements.
6.How does Aetrix verify that MSP430F2001IRSAT is sourced from the original manufacturer or authorized distributors?
All MSP430F2001IRSAT 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 MSP430F2001IRSAT meets industry standards.
7.What is the process for return or replacement of MSP430F2001IRSAT?
All MSP430F2001IRSAT units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F2001IRSAT, 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 MSP430F2001IRSAT part is unused and in its original packaging.
Return procedure for MSP430F2001IRSAT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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