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Texas Instruments MSP430G2252IPW14R

Name: MSP430G2252IPW14R
Brand: Texas Instruments
SKU: MSP430G2252IPW14R
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MSP430G2252IPW14R

Manufacturer:: Texas Instruments

Category:: Microcontrollers

Package:: 14-TSSOP (0.173", 4.40mm Width)

Datasheet:: MSP430G2252IPW14R.pdf

Description:: IC MCU 16BIT 2KB FLASH 14TSSOP

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Product details

Overview

MSP430G2252IPW14R from Texas Instruments is an ultra-low-power 16-bit RISC mixed-signal microcontroller in 14-pin TSSOP package, featuring 2 kB flash, 256 B RAM, 10-bit ADC with 8-channel autoscan, USI (SPI/I²C), Timer_A with three capture/compare registers, and integrated comparator. It targets battery-powered sensor nodes and portable measurement systems requiring sub-1-µs wake-up and <0.1 µA off-mode current.

For engineers reviewing the MSP430G2252IPW14R datasheet, MSP430G2252IPW14R pinout, MSP430G2252IPW14R application, or MSP430G2252IPW14R equivalent, key selection criteria include its 14-pin TSSOP footprint, 10-bit ADC availability (exclusive to G2x52 family), Spy-Bi-Wire debug interface, brownout detection, and five configurable low-power modes - all confirmed for this exact variant.

Technical Context

The MSP430G2252IPW14R implements a 16-bit CPU with seven addressing modes and 51 instructions, executing register-to-register operations in one CPU cycle. Its clock system integrates a digitally controlled oscillator (DCO) calibrated at 1/8/12/16 MHz, plus LF oscillator and 32-kHz crystal support - all accessible via BCSCTL registers.

Peripherals are memory-mapped and fully controllable by CPU instructions. The ADC10 module supports internal reference, sample-and-hold, and DMA-less data transfer; the USI handles synchronous SPI and I²C protocols using shared P1 pins; and Timer_A3 provides PWM, input capture, and interval timing with interrupt capability on overflow and each CCR.

Key Specifications

Parameter	Value and Actual Design Meaning
Core Architecture	16-bit RISC CPU with 16 general-purpose registers and constant generator; enables high code efficiency and deterministic 62.5-ns instruction cycle at 16 MHz.
Flash / RAM	2 kB flash program memory and 256 B RAM - sufficient for compact firmware with ADC data buffering and communication stacks.
ADC Resolution	10-bit SAR ADC with 8-channel autoscan and internal reference - delivers ±1 LSB INL/DNL for precision analog sensing without external components.
Low-Power Modes	Five software-selectable modes including LPM4 (0.1 µA) and ultra-fast wake-up (<1 µs) - extends battery life in intermittent-sampling applications.
Communication	Universal Serial Interface (USI) supporting hardware SPI and I²C - reduces firmware overhead for sensor interfacing and host communication.
Supply Voltage	1.8 V to 3.6 V operation - compatible with single-cell Li-ion, Li-polymer, or dual-AA alkaline power sources.
Package	14-pin TSSOP (PW) with 0.65 mm pitch - suitable for space-constrained PCB layouts while maintaining hand-solderability.

Pinout & Package

Package: 14-pin Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 5.0 mm × 4.4 mm body, 0.65 mm lead pitch.

Pin/Terminal	Circuit Role	Design Meaning
1 - DVCC	Digital supply voltage	Primary 1.8–3.6 V power rail for CPU and digital I/O; requires local 100 nF decoupling.
2 - P1.0/TA0CLK/ACLK/A0/CA0	Multi-function I/O	Configurable as timer clock input, ACLK output, ADC channel 0, or comparator input - enables flexible clock routing and analog front-end design.
3 - P1.1/TA0.0/A1/CA1	Multi-function I/O	Timer_A capture/compare 0, ADC channel 1, comparator input - supports synchronized timing and analog sampling.
4 - P1.2/TA0.1/A2/CA2	Multi-function I/O	Timer_A capture/compare 1, ADC channel 2, comparator input - allows dual-edge capture or differential analog sensing.
5 - P1.3/ADC10CLK/CAOUT/VREF-/VEREF-/A3/CA3	Analog control & I/O	ADC conversion clock output, comparator output, negative reference, ADC channel 3 - critical for reference stability and analog signal chain integrity.
6 - P1.4/TA0.2/SMCLK/A4/VREF+/VEREF+/CA4/TCK	Multi-function I/O	Timer_A capture/compare 2, SMCLK output, ADC positive reference, JTAG test clock - enables clock distribution and boundary-scan debugging.
7 - P1.5/TA0.0/SCLK/A5/CA5/TMS	Multi-function I/O	Timer_A compare output, USI serial clock, ADC channel 5, JTAG mode select - supports SPI master timing and debug access.
8 - P1.6/TA0.1/SDO/SCL/A6/CA6/TDI/TCLK	Multi-function I/O	Timer_A compare output, USI data out/I²C clock, ADC channel 6, JTAG data input - consolidates communication and timing functions on one pin.
9 - P1.7/SDI/SDA/CAOUT/A7/CA7/TDO/TDI	Multi-function I/O	USI data in/I²C data, comparator output, ADC channel 7, JTAG data output - enables full-duplex SPI or bidirectional I²C with analog monitoring.
10 - RST/NMI/SBWTDIO	Reset & debug I/O	Active-low reset, non-maskable interrupt, and Spy-Bi-Wire bidirectional debug data - supports in-system programming and low-pin-count debugging.
11 - TEST/SBWTCK	Debug clock	Test mode select and Spy-Bi-Wire clock input - required for flash programming and real-time emulation without JTAG header.
12 - XOUT/P2.7	Oscillator output	Crystal oscillator output or general-purpose I/O; must be left unconnected if external crystal not used - avoids unintended loading of oscillator circuit.
13 - XIN/P2.6/TA0.1	Oscillator input	Crystal oscillator input or Timer_A compare output - determines system clock source and enables low-jitter timing generation.
14 - DVSS	Digital ground	Reference return path for digital circuits; must be connected to system ground plane with low-inductance path to minimize noise coupling into analog sections.

Key Features

Feature	Design Value
Ultra-low-power operation	0.1 µA off-mode (RAM retention), 0.5 µA standby, and 220 µA active at 1 MHz/2.2 V - enables multi-year battery life in wireless sensors.
Integrated 10-bit ADC	8-channel autoscan, internal reference, sample-and-hold, and programmable conversion clock - eliminates need for external ADC and reference ICs.
Programmable DCO	Digitally controlled oscillator with factory-calibrated frequencies at 1/8/12/16 MHz - ensures accurate timing without external crystal in cost-sensitive designs.
Spy-Bi-Wire debug	Two-wire (SBWTDIO + SBWTCK) in-circuit programming and emulation - reduces debug footprint versus 4-pin JTAG and simplifies production programming.
Capacitive-touch I/O	Up to 16 pins support pin-oscillator enable for low-cost touch-button implementation - enables human-interface features without dedicated touch controller.
Brownout protection	On-chip voltage monitor with hysteresis triggers reset below programmable threshold - prevents erratic operation during battery discharge or supply transients.

Applications

Wireless Sensor Node	Portable Medical Monitor
Use Scenario: Battery-powered temperature/humidity sensor transmitting data via sub-GHz RF link every 30 seconds. IC Role / Device Role / Timing Role: Central controller managing ADC sampling, RF interface timing, sleep/wake scheduling, and low-power state transitions. Use Value: Sub-1-µs wake-up and 0.1 µA off-mode current extend CR2032 battery life beyond 3 years; integrated USI simplifies SPI connection to RF transceiver.	Use Scenario: Handheld pulse oximeter acquiring analog photodiode signals and driving OLED display. IC Role / Device Role / Timing Role: Signal acquisition engine performing synchronized dual-channel ADC conversions and real-time SpO₂ calculation. Use Value: 10-bit ADC with internal reference and autoscan enables precise ratiometric measurements; 256 B RAM buffers waveform data before display update.
Smart Utility Meter Interface	Industrial Condition Monitor
Use Scenario: Tamper-detection module monitoring enclosure switch status and logging events to EEPROM. IC Role / Device Role / Timing Role: Low-power event logger with interrupt-driven I/O, flash-based nonvolatile storage, and watchdog supervision. Use Value: Five low-power modes and brownout detector ensure reliable operation across wide supply range (1.8–3.6 V); programmable security fuse protects firmware IP.	Use Scenario: Vibration sensor node on motor housing capturing accelerometer data and triggering alerts on threshold exceedance. IC Role / Device Role / Timing Role: Edge-triggered interrupt processor sampling analog accelerometer output via ADC10 and comparing against stored thresholds. Use Value: Comparator_A+ module performs analog threshold detection without CPU intervention; P1/P2 interrupt flags enable immediate response to mechanical anomalies.

Wireless Sensor Node

Portable Medical Monitor

Use Scenario: Battery-powered temperature/humidity sensor transmitting data via sub-GHz RF link every 30 seconds.

IC Role / Device Role / Timing Role: Central controller managing ADC sampling, RF interface timing, sleep/wake scheduling, and low-power state transitions.

Use Value: Sub-1-µs wake-up and 0.1 µA off-mode current extend CR2032 battery life beyond 3 years; integrated USI simplifies SPI connection to RF transceiver.

Use Scenario: Handheld pulse oximeter acquiring analog photodiode signals and driving OLED display.

IC Role / Device Role / Timing Role: Signal acquisition engine performing synchronized dual-channel ADC conversions and real-time SpO₂ calculation.

Use Value: 10-bit ADC with internal reference and autoscan enables precise ratiometric measurements; 256 B RAM buffers waveform data before display update.

Smart Utility Meter Interface

Industrial Condition Monitor

Use Scenario: Tamper-detection module monitoring enclosure switch status and logging events to EEPROM.

IC Role / Device Role / Timing Role: Low-power event logger with interrupt-driven I/O, flash-based nonvolatile storage, and watchdog supervision.

Use Value: Five low-power modes and brownout detector ensure reliable operation across wide supply range (1.8–3.6 V); programmable security fuse protects firmware IP.

Use Scenario: Vibration sensor node on motor housing capturing accelerometer data and triggering alerts on threshold exceedance.

IC Role / Device Role / Timing Role: Edge-triggered interrupt processor sampling analog accelerometer output via ADC10 and comparing against stored thresholds.

Use Value: Comparator_A+ module performs analog threshold detection without CPU intervention; P1/P2 interrupt flags enable immediate response to mechanical anomalies.

Equivalent & Alternatives

The following parts are listed as comparable options for similar ultra-low-power mixed-signal microcontroller applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MSP430G2232IPW14R	No ADC10 module; only comparator and USI; same 2 kB flash/256 B RAM and 14-pin TSSOP.	Lacks analog-to-digital conversion capability - unsuitable where sensor digitization is required.	Select when only analog comparison or digital I/O is needed; lower cost where ADC is unnecessary.
MSP430G2252IPW20R	Identical core specs but in 20-pin TSSOP; adds P2.0–P2.5 I/O and AVCC/AVSS pins for improved analog separation.	Enables more complex analog front-ends and additional GPIO without multiplexing constraints.	Select when additional I/O or dedicated analog supply rails are required; same firmware compatibility.

Compared with MSP430G2232IPW14R, the MSP430G2252IPW14R adds essential 10-bit ADC functionality for sensor digitization; compared with MSP430G2252IPW20R, it trades I/O count and analog supply isolation for smaller board area and lower component count in space-limited designs.

Availability

MSP430G2252IPW14R is available at Aetrix Electronics and suitable for wireless sensor nodes, portable medical monitors, smart utility meter interfaces, and industrial condition monitors requiring stable component supply, long-term lifecycle support, and consistent parametric performance.

Supply support for MSP430G2252IPW14R 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 ultra-low-power microcontrollers.

The MSP430G2xx family was designed specifically for battery-operated portable instrumentation and sensing applications, emphasizing nanowatt-level power management, integrated analog peripherals, and minimal external component requirements.

FAQ

What is the maximum ADC sampling rate supported by the MSP430G2252IPW14R?

The MSP430G2252IPW14R ADC10 module supports up to 200 kS/s conversion rate when driven by its internal ADC10CLK. This maximum rate assumes optimal configuration: internal reference enabled, sample-and-hold active, and no wait states in flash execution. Real-world throughput depends on system clock setup and software overhead, but the hardware limit remains 200 kS/s as specified in the SLAS722G datasheet.

Does the MSP430G2252IPW14R support hardware UART communication?

No, the MSP430G2252IPW14R does not include a dedicated UART peripheral. It features a Universal Serial Interface (USI) that supports hardware SPI and I²C protocols only. UART functionality must be implemented in firmware using timer-generated bit-banging or USI in SPI mode with external level-shifting, as no UART-specific registers or baud-rate generators exist in this device.

What debug interface does the MSP430G2252IPW14R use, and what pins are required?

The MSP430G2252IPW14R uses the two-wire Spy-Bi-Wire (SBW) interface for debugging and programming. It requires only two pins: RST/NMI/SBWTDIO (Pin 10) for bidirectional data and TEST/SBWTCK (Pin 11) for clock. This eliminates the need for a full 4-pin JTAG header and enables in-system programming with minimal PCB footprint.

Can the MSP430G2252IPW14R operate from a 3.3 V supply, and is it 5 V tolerant?

Yes, the MSP430G2252IPW14R operates across 1.8 V to 3.6 V, making 3.3 V a fully supported supply voltage. However, it is not 5 V tolerant: all I/O pins have absolute maximum ratings of –0.3 V to VCC + 0.3 V. Applying 5 V signals directly will damage the device; level shifters are required for interfacing with 5 V peripherals.

How many I/O pins are available on the MSP430G2252IPW14R, and which ports do they belong to?

The MSP430G2252IPW14R provides eight general-purpose I/O pins: P1.0 through P1.7 (Pins 2–9), plus P2.6 and P2.7 (Pins 13–12). Port P2 has only two usable pins in the 14-pin TSSOP package, as confirmed in Table 1 and the PW package pinout diagram of SLAS722G. No P2.0–P2.5 are bonded out in this variant.

MSP430G2252IPW14R Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Package/Case:: 14-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:: 10

Program Memory Size:: 2KB (2K x 8)

Program Memory Type:: FLASH

EEPROM Size:: -

RAM Size:: 256 x 8

Voltage - Supply (Vcc/Vdd):: 1.8V ~ 3.6V

Data Converters:: A/D 8x10b

Oscillator Type:: Internal

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:

MSP430G2252IPW14R FAQ

1.How can I place an order for MSP430G2252IPW14R through Aetrix?

Please submit a Request for Quotation (RFQ) for MSP430G2252IPW14R 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 MSP430G2252IPW14R reliable?

The price and inventory of MSP430G2252IPW14R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430G2252IPW14R is usually 5 days.

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MSP430G2252IPW14R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MSP430G2252IPW14R 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 MSP430G2252IPW14R?

For technical support, including MSP430G2252IPW14R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430G2252IPW14R requirements.

6.How does Aetrix verify that MSP430G2252IPW14R is sourced from the original manufacturer or authorized distributors?

All MSP430G2252IPW14R 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 MSP430G2252IPW14R meets industry standards.

7.What is the process for return or replacement of MSP430G2252IPW14R?

All MSP430G2252IPW14R units undergo pre-shipment inspection (PSI). If there is an issue with MSP430G2252IPW14R, 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 MSP430G2252IPW14R part is unused and in its original packaging.

Return procedure for MSP430G2252IPW14R:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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