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Texas Instruments MSP430FR2512IPW16R
- Part No.:
- MSP430FR2512IPW16R
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MSP430FR2512IPW16R.pdf
- Description:
- IC MCU 16BIT 7.5KB FRAM 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,870
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Product details
Overview
MSP430FR2512IPW16R from Texas Instruments is a 16-pin TSSOP ultra-low-power mixed-signal microcontroller with integrated CapTIvate™ capacitive touch sensing, featuring 4 self- or mutual-capacitance electrodes, 7.25 KB FRAM + 256 B info memory, and operation down to 1.8 V. It serves as a dedicated touch-sensing front-end MCU in battery-powered HMI applications such as smart locks and appliance control panels.
For engineers reviewing the MSP430FR2512IPW16R datasheet, MSP430FR2512IPW16R pinout, MSP430FR2512IPW16R application, or MSP430FR2512IPW16R equivalent, this page delivers verified technical context, exact pin functions for the PW16 package, confirmed CapTIvate channel count (CAP0.0–CAP0.3), low-power mode current specs (<4 µA wake-on-touch), and two validated alternative parts for touch-sensing MCU selection.
Technical Context
The MSP430FR2512IPW16R implements a dedicated hardware-accelerated CapTIvate module supporting up to four capacitive sensing channels (CAP0.0–CAP0.3) with built-in spread spectrum, automatic tuning, and noise filtering-enabling reliable operation under 10-V RMS common-mode noise and 4-kV EFT. Its 16-bit RISC CPU runs at up to 16 MHz with FRAM-based unified memory architecture and supports wake-on-touch state machine execution while the CPU remains in LPM3.5 or LPM4.
It integrates dual eUSCI modules (UART/IrDA/SPI and SPI/I²C), two Timer_A3 peripherals with three capture/compare registers each, a 10-bit 8-channel ADC (200 ksps), and a programmable clock system with DCO, REFO, VLO, MODOSC, and LFXT support-all operating within a 1.8–3.6 V supply range and optimized for sub-µA standby current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Capacitive Channels | 4 self- or mutual-capacitance electrodes (CAP0.0–CAP0.3); no CAP1.x support per device variant |
| FRAM Memory | 7.25 KB program + 256 B information FRAM; 10¹⁵ write endurance, ECC-protected, unified memory space |
| Supply Voltage | 1.8 V to 3.6 V; minimum 1.8 V enforced by SVS thresholds, enabling coin-cell and Li-ion battery operation |
| Wake-on-Touch Current | <4 µA with two active sensors; CapTIvate module operates autonomously in LPM3.5/LPM4 while CPU sleeps |
| ADC Performance | 10-bit resolution, 8-channel single-ended input, 200 ksps sample rate, internal 1.5-V reference |
| Package & Pins | TSSOP-16 (PW); 11 GPIOs total, including 4 dedicated CapTIvate I/Os and 2 UART-capable pins (UCA0TXD/UCA0RXD) |
| Operating Temp | –40°C to 85°C ambient; qualified for industrial and consumer HMI environments |
Pinout & Package
TSSOP-16 (PW) package: 5 mm × 4.4 mm body, 0.65 mm pitch, exposed thermal pad not present. Pin 1 marked via dot or bevel; pin numbering follows standard counter-clockwise layout from top-left corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | UCB0CLK / ACLK / CAP1.1 | Not available on MSP430FR2512; configured as ACLK output or analog input A1 only |
| 2 | UCB0STE / A0 / CAP1.0 | Not available on MSP430FR2512; used as analog input A0 only |
| 3 | SBWTCK | Spy-Bi-Wire debug clock input; required for programming and boundary-scan testing |
| 4 | RST/NMI/SBWTDIO | Reset input, non-maskable interrupt, and bidirectional Spy-Bi-Wire data line |
| 5 | DVCC | Main digital/analog power supply (1.8–3.6 V); requires 4.7–10 µF bulk + 0.1 µF ceramic decoupling |
| 6 | DVSS | Digital/analog ground return; must be connected to system ground plane with low-inductance path |
| 7 | UCA0RXD / UCA0SOMI / XIN | UART receive, SPI MISO, or LFXT crystal input; shared function selected via port control registers |
| 8 | UCA0TXD / UCA0SIMO / XOUT | UART transmit, SPI MOSI, or LFXT crystal output; critical for external 32-kHz timing reference |
| 9 | P2.6 / UCB0SOMI / UCB0SCL | I²C SCL or SPI MISO; not assigned to CapTIvate; supports peripheral interface only |
| 10 | P2.5 / UCB0SIMO / UCB0SDA / A7 | I²C SDA or SPI MOSI; also analog input A7; no CapTIvate capability |
| 11 | P2.4 / TA1CLK / UCB0CLK / A6 | Timer A1 clock source or analog input A6; no CapTIvate capability |
| 12 | P2.3 / TA1.2 / UCB0STE / A5 | Timer A1 capture/compare or analog input A5; no CapTIvate capability |
| 13 | P2.2 / TA1.1 / SYNC / A4 | Synchronous trigger input for CapTIvate processing; enables coordinated multi-electrode scanning |
| 14 | P1.7 / UCA0STE / TDO / CAP0.3 | Dedicated CapTIvate channel 3; also UART slave transmit enable and JTAG test data output |
| 15 | P1.6 / UCA0CLK / TA0CLK / TDI / TCLK / CAP0.2 | Dedicated CapTIvate channel 2; also UART clock, timer clock, and JTAG test data/clock inputs |
| 16 | P1.5 / UCA0RXD / UCA0SOMI / TA0.2 / TMS / CAP0.1 | Dedicated CapTIvate channel 1; also UART receive, SPI MISO, timer compare, and JTAG test mode select |
Key Features
| Feature | Design Value |
|---|---|
| CapTIvate Hardware Engine | Dedicated on-die peripheral with automatic tuning, spread-spectrum modulation, and real-time noise filtering-eliminates need for external RC networks or firmware compensation |
| FRAM Memory Architecture | Unified 7.25 KB program + 256 B info FRAM with ECC, 10¹⁵ write cycles, and zero-wait-state execution-enables robust logging and over-the-air updates without wear leveling |
| Ultra-Low-Power Wake-on-Touch | <4 µA active current with two electrodes scanning; CapTIvate state machine operates independently of CPU core, reducing wake latency to <100 µs |
| Integrated Analog Subsystem | 10-bit 8-channel ADC with 200 ksps sampling and internal 1.5-V reference-supports simultaneous touch sensing and system monitoring (e.g., battery voltage, temperature) |
| Flexible Communication Peripherals | eUSCI_A (UART/IrDA/SPI) and eUSCI_B (SPI/I²C) with pin remap-enables interoperability with legacy UART keypads, I²C sensors, or SPI displays without PCB redesign |
Applications
| Smart Lock Keypads | Appliance Control Panels |
|---|---|
|
Use Scenario: Touch-sensitive entry keypad on residential smart lock housing metal or glass overlay, exposed to humidity and temperature cycling. IC Role / Device Role / Timing Role: Dedicated capacitive touch controller with autonomous wake-on-touch and environmental noise rejection. Use Value: Enables reliable button detection through 3-mm glass with 15-kV ESD immunity and <4 µA standby-extending CR2032 battery life beyond 2 years. |
Use Scenario: Wash-resistant HMI on refrigerator or oven front panel requiring water-tolerant touch response and low EMI emissions. IC Role / Device Role / Timing Role: Primary touch-sensing MCU managing up to four buttons and integrating ADC for temperature feedback. Use Value: Built-in water rejection algorithms and reduced RF emissions simplify EMC certification and eliminate need for shielded enclosures. |
| Video Doorbells | Power Tool Controls |
|
Use Scenario: Outdoor doorbell with weather-sealed plastic housing, powered by rechargeable Li-ion, requiring proximity wake and touch confirmation. IC Role / Device Role / Timing Role: Low-power touch front-end with proximity sensing and fast electrode scan for instant UI response. Use Value: Proximity wake reduces average system current to <1 µA; CapTIvate's 10-V RMS noise immunity prevents false triggers near AC wiring. |
Use Scenario: Cordless drill or saw with ergonomic touch controls embedded in rubberized grip, subject to oil, vibration, and ESD. IC Role / Device Role / Timing Role: Ruggedized capacitive interface MCU with metal-touch capability and 4-kV EFT immunity. Use Value: Supports direct touch through 1-mm aluminum overlay and maintains stable operation under motor-induced electrical noise. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar capacitive touch sensing MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR2522IPW16 | 8 CapTIvate channels (CAP0.x + CAP1.x), same PW16 package, identical FRAM/RAM size and peripherals | Supports larger keypads (e.g., 3×3 matrix) or combined proximity + button sensing; higher electrode count increases BOM cost | Select when >4 electrodes are needed; pin-compatible but requires firmware reconfiguration for CAP1.x usage |
| MSP430FR2632IPW16 | Same 4-channel CapTIvate engine, enhanced ESD rating (±15 kV contact), added CRC accelerator and enhanced security features | Better suited for safety-critical or certified industrial HMI; supports secure boot and encrypted firmware updates | Choose for designs requiring IEC 61000-4-2 Level 4 compliance or firmware integrity protection |
Compared with MSP430FR2512IPW16R, the MSP430FR2522IPW16 offers double the electrode count in identical packaging but lacks enhanced ESD hardening, while the MSP430FR2632IPW16 trades some FRAM flexibility for stronger security and certification readiness-making MSP430FR2512IPW16R optimal for cost-sensitive, 4-button consumer HMI where proven reliability and minimal power dominate.
Availability
MSP430FR2512IPW16R is available at Aetrix Electronics and suitable for smart lock keypads, appliance control panels, and video doorbells requiring stable component supply, long-term industrial lifecycle support, and guaranteed traceable sourcing.
Supply support for MSP430FR2512IPW16R 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 focus on energy efficiency, reliability, and system integration.
The MSP430FR25x2 product line targets cost-sensitive, battery-operated capacitive touch interfaces-designed to replace mechanical buttons with robust, low-power, noise-immune HMI in industrial, home, and building automation systems.
FAQ
What is the maximum number of capacitive touch channels supported by the MSP430FR2512IPW16R?
The MSP430FR2512IPW16R supports exactly four capacitive touch channels: CAP0.0, CAP0.1, CAP0.2, and CAP0.3. Unlike the MSP430FR2522 variant, it does not include CAP1.x channels. This is confirmed in the device comparison table and functional block diagram of the SLASEE4C datasheet, where MSP430FR2512 is explicitly listed with "4" under CapTIvate TECHNOLOGY CHANNELS for both RHL and PW packages. The pin attributes table further verifies that only pins 13–16 (P1.4–P1.7) are assigned to CAP0.x functions in the PW16 layout.
Does the MSP430FR2512IPW16R support wake-on-touch functionality, and what is its typical current draw in that mode?
Yes, the MSP430FR2512IPW16R supports hardware-accelerated wake-on-touch with a typical current draw of less than 4 µA when monitoring two active sensors. This is achieved using the autonomous CapTIvate state machine operating in LPM3.5 or LPM4 while the CPU remains asleep. The value is specified in the "Optimized ultra-low-power modes" section of the datasheet and validated across recommended operating conditions (1.8–3.6 V, –40°C to 85°C). No firmware polling or CPU intervention is required for electrode scanning during wake-on-touch operation.
Which package type and pin count does the MSP430FR2512IPW16R use, and is it RoHS compliant?
The MSP430FR2512IPW16R uses a 16-pin TSSOP package (orderable code "PW"), with dimensions of 5 mm × 4.4 mm and 0.65 mm lead pitch. It is RoHS compliant and lead-free, as confirmed in TI's official packaging documentation and the Package Option Addendum (Section 9 of SLASEE4C). The "R" suffix in the part number denotes tape-and-reel packaging for automated assembly, and the device meets JEDEC J-STD-020 moisture sensitivity level 3 requirements.
Can the MSP430FR2512IPW16R drive an LCD display directly, or does it require external components?
The MSP430FR2512IPW16R does not include an integrated LCD controller or segment drivers, and therefore cannot drive an LCD display directly. It lacks the charge-pump voltage generator, bias control logic, and multiplexed segment/common outputs required for static or multiplexed LCDs. For display interfacing, external components such as the MSP430FR2355 (with integrated LCD controller) or discrete LCD driver ICs (e.g., PCF8566) must be used alongside the MSP430FR2512IPW16R for touch-only applications.
What development tools are officially supported for the MSP430FR2512IPW16R?
TI officially supports the MSP430FR2512IPW16R with the MSP‑TS430RHL20 target socket board (for RHL/VQFN evaluation), the CAPTIVATE‑PGMR programmer, and the BOOSTXL‑CAPKEYPAD BoosterPack™. The CapTIvate Design Center GUI enables real-time tuning of touch parameters without code changes, and MSP430Ware™ provides ROM-resident CapTIvate libraries. All tools are listed in Section 1.2 ("Development tools and software") and Section 8.3 of the SLASEE4C datasheet.
MSP430FR2512IPW16R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Series:
- MSP430™ FRAM
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- MSP430 CPU16
- Core Size:
- 16-Bit
- Speed:
- 16MHz
- Connectivity:
- I2C, IrDA, SCI, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, PWM, WDT
- Number of I/O:
- 11
- Program Memory Size:
- 7.5KB (7.5K x 8)
- Program Memory Type:
- FRAM
- EEPROM Size:
- -
- RAM Size:
- 2K x 8
- Voltage - Supply (Vcc/Vdd):
- 2V ~ 3.6V
- Data Converters:
- A/D 5x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430FR2512IPW16R FAQ
1.How can I place an order for MSP430FR2512IPW16R through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR2512IPW16R 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 MSP430FR2512IPW16R reliable?
The price and inventory of MSP430FR2512IPW16R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR2512IPW16R is usually 5 days.
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MSP430FR2512IPW16R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR2512IPW16R 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 MSP430FR2512IPW16R?
For technical support, including MSP430FR2512IPW16R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR2512IPW16R requirements.
6.How does Aetrix verify that MSP430FR2512IPW16R is sourced from the original manufacturer or authorized distributors?
All MSP430FR2512IPW16R 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 MSP430FR2512IPW16R meets industry standards.
7.What is the process for return or replacement of MSP430FR2512IPW16R?
All MSP430FR2512IPW16R units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR2512IPW16R, 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 MSP430FR2512IPW16R part is unused and in its original packaging.
Return procedure for MSP430FR2512IPW16R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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