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Texas Instruments MSP430G2252IPW20
- Part No.:
- MSP430G2252IPW20
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MSP430G2252IPW20.pdf
- Description:
- IC MCU 16BIT 2KB FLASH 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:535
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Product details
Overview
MSP430G2252IPW20 from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller featuring a 10-bit ADC, Universal Serial Interface (USI) for SPI/I²C, one 16-bit Timer_A with three capture/compare registers, on-chip comparator, and 256 B RAM in a 20-pin TSSOP package. It operates from 1.8 V to 3.6 V and supports capacitive-touch I/O for low-cost sensor systems.
For engineers reviewing the MSP430G2252IPW20 datasheet, MSP430G2252IPW20 pinout, MSP430G2252IPW20 application, or MSP430G2252IPW20 equivalent, key selection criteria include ADC channel count, USI interface support, standby current (0.5 µA), brownout detection, and Spy-Bi-Wire debug capability - all critical for battery-powered measurement and sensing designs.
Technical Context
The MSP430G2252IPW20 implements a 16-bit RISC CPU with constant generators and seven addressing modes, enabling single-cycle register operations. Its clock system integrates a digitally controlled oscillator (DCO) calibrated at 1/8/12/16 MHz, plus LF and external crystal options, supporting sub-1 µs wake-up from LPM4.
It features two 8-bit I/O ports (P1 and P2), with individually programmable pullup/pulldown resistors and pin-oscillator enable for capacitive touch. The ADC10 module includes internal reference, sample-and-hold, autoscan, and DMA-capable data transfer - exclusively available on the G2x52 series.
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 time - enables efficient C code execution and deterministic real-time response. |
| ADC Resolution & Speed | 10-bit SAR ADC with 200-ksps sampling rate and autoscan - supports simultaneous multi-channel analog monitoring without CPU overhead. |
| Supply Voltage Range | 1.8 V to 3.6 V - compatible with single-cell Li-ion, coin-cell, and regulated 3.3 V rails in portable instrumentation. |
| Low-Power Modes | Five software-selectable modes including LPM4 (0.1 µA RAM retention) - extends battery life in intermittent-sensing applications. |
| Communication Interface | Universal Serial Interface (USI) supporting hardware SPI and I²C - eliminates need for external level shifters or protocol translators. |
| Debug Interface | Spy-Bi-Wire (2-wire JTAG) with on-chip emulation logic - enables in-system programming and debugging using minimal PCB footprint. |
| Flash / RAM | 2 KB flash memory and 256 B RAM - sufficient for firmware with ADC data processing, communication stack, and sensor calibration routines. |
Pinout & Package
Package: 20-pin TSSOP (PW), 0.65 mm pitch, body size 6.5 × 4.4 mm, thermal pad not required.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 16, 15 | DVCC / AVCC | Digital and analog supply pins - require separate 100-nF decoupling near each pin; AVCC must be clean for ADC accuracy. |
| 14, 20, 13 | DVSS / AVSS | Digital and analog ground returns - star-grounding recommended to minimize ADC noise coupling. |
| 2–9, 11–12, 17–19 | P1.x / P2.x I/O | 16 total GPIOs (8 on P1, 8 on P2); P1.0–P1.7 support USI, Timer_A, ADC10, comparator, and capacitive touch functions. |
| 10, 11 | RST/NMI/SBWTDIO, TEST/SBWTCK | Spy-Bi-Wire debug interface - enables programming and real-time debugging with TI MSP-FET or LaunchPad tools. |
| 18–19 | XIN/P2.6, XOUT/P2.7 | Crystal oscillator inputs - support 32.768 kHz watch crystal for precise RTC or low-power timing; internal DCO used otherwise. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low standby current | 0.5 µA in LPM3 mode - enables multi-year operation on CR2032 coin cells in wireless sensor nodes. |
| Integrated 10-bit ADC | Hardware autoscan across up to 8 channels with internal reference - eliminates external voltage reference IC and reduces BOM cost. |
| Capacitive-touch I/O | Up to 16 pins support pin-oscillator mode - enables button/slider implementation without dedicated touch controller IC. |
| Brownout detector | Programmable threshold with interrupt capability - prevents erratic operation during battery voltage sag and enables graceful shutdown. |
| On-chip comparator | 8-channel analog comparator with selectable hysteresis - supports battery voltage monitoring, windowed threshold detection, and slope ADC. |
Applications
| Smart Sensor Node | Portable Medical Monitor |
|---|---|
Use Scenario: Battery-powered environmental sensor collecting temperature, humidity, and light data at 10-second intervals. IC Role / Device Role / Timing Role: Central controller managing ADC sampling, USI-based sensor communication, low-power sleep/wake scheduling, and SPI flash logging. Use Value: 0.1 µA off-mode current and integrated ADC reduce average system power to <10 µA, enabling >5-year CR2032 lifetime. | Use Scenario: Wearable pulse oximeter requiring analog front-end signal conditioning and optical LED control. IC Role / Device Role / Timing Role: Signal acquisition MCU handling photodiode ADC conversion, LED timing via Timer_A PWM, and I²C display interface. Use Value: Internal 1.5 V reference and 10-bit resolution support ±1% SpO₂ accuracy; LPM3 mode minimizes heat generation during continuous monitoring. |
| Industrial Control Panel | Energy Harvesting Node |
Use Scenario: DIN-rail mounted HMI with tactile buttons, status LEDs, and RS-485 gateway connectivity. IC Role / Device Role / Timing Role: Local intelligence unit performing capacitive button scanning, LED PWM dimming, and UART-to-USI protocol translation. Use Value: Pin-oscillator touch capability replaces mechanical switches; USI simplifies isolated RS-485 transceiver interfacing via SPI. | Use Scenario: Solar-powered soil moisture sensor transmitting data via LoRaWAN every 6 hours. IC Role / Device Role / Timing Role: Power-aware coordinator activating ADC only during solar charge peaks, storing samples in flash, and triggering RF transmission. Use Value: Sub-1 µs wake-up from LPM4 ensures minimal energy loss during ADC trigger events; 2 KB flash stores calibration tables and firmware updates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430G2452IPW20 | 4 KB flash, 8-channel ADC, same pinout and peripherals - adds 2 more ADC inputs and doubles program storage. | Supports more complex sensor fusion algorithms and larger communication stacks (e.g., BLE over UART). | Select when firmware size exceeds 2 KB or additional analog inputs are needed without changing PCB layout. |
| MSP430FR2152IPW20 | Ferroelectric RAM (FRAM) instead of flash, 2 KB FRAM + 128 B RAM, same 20-pin TSSOP - enables faster write endurance and lower active power. | Superior for frequent data logging (e.g., 1000+ writes/sec) and real-time parameter updates without wear leveling. | Choose for high-write-cycle applications where flash endurance or write latency is limiting, accepting slightly higher cost. |
Compared with MSP430G2452IPW20, the MSP430G2252IPW20 offers identical peripheral set and pin compatibility at lower flash density and cost; versus MSP430FR2152IPW20, it trades FRAM's write speed and endurance for proven flash reliability and broader toolchain support in legacy designs.
Availability
MSP430G2252IPW20 is available at Aetrix Electronics and suitable for smart sensor nodes, portable medical monitors, industrial control panels, and energy harvesting nodes requiring stable component supply and long-term manufacturability.
Supply support for MSP430G2252IPW20 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 digital signal processing technologies, with decades of expertise in ultra-low-power design.
The MSP430G2xx family targets cost-sensitive, battery-operated measurement applications - delivering optimized power efficiency, integrated analog peripherals, and streamlined development for sensor and control systems.
FAQ
What is the maximum ADC sampling rate supported by the MSP430G2252IPW20?
The MSP430G2252IPW20 supports a maximum ADC10 sampling rate of 200 ksps under optimal conditions (internal reference, 2.2 V supply, 1 MHz MCLK). Actual throughput depends on clock source stability, reference selection, and conversion mode - autoscan across multiple channels reduces effective per-channel rate due to sequencing overhead.
Does the MSP430G2252IPW20 support hardware UART communication?
No, the MSP430G2252IPW20 does not include a dedicated UART peripheral. It provides a Universal Serial Interface (USI) module that supports SPI and I²C protocols natively. UART functionality can be implemented in software using Timer_A and GPIO, but this consumes CPU resources and lacks hardware flow control or error detection.
Can the MSP430G2252IPW20 operate from a 3.3 V supply while maintaining full ADC accuracy?
Yes, the MSP430G2252IPW20 operates across 1.8 V to 3.6 V and maintains full 10-bit ADC accuracy at 3.3 V when using the internal 1.5 V reference or external VREF+. At 3.3 V, the ADC's full-scale range is 1.5 V (with internal reference) or user-defined (with external reference), and INL/DNL specifications remain within datasheet limits per SLAS722G.
How many I/O pins on the MSP430G2252IPW20 support capacitive touch sensing?
The MSP430G2252IPW20 supports capacitive touch sensing on up to 16 I/O pins - all eight pins of Port 1 (P1.0–P1.7) and all eight pins of Port 2 (P2.0–P2.7) can be individually enabled for pin-oscillator mode. This allows flexible implementation of sliders, wheels, or multi-button interfaces without external components.
Is the MSP430G2252IPW20 pin-compatible with other devices in the MSP430G2x52 family?
Yes, the MSP430G2252IPW20 is pin-compatible with all 20-pin TSSOP variants in the MSP430G2x52 family, including MSP430G2352IPW20 and MSP430G2452IPW20. They share identical pin functions, electrical characteristics, and package dimensions - enabling drop-in replacement for firmware upgrades or feature scaling without PCB revision.
MSP430G2252IPW20 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 20-TSSOP (0.173", 4.40mm Width)
- Series:
- MSP430G2xx
- Packaging:
- Tube
- 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:
- 16
- 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:
MSP430G2252IPW20 FAQ
1.How can I place an order for MSP430G2252IPW20 through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430G2252IPW20 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 MSP430G2252IPW20 reliable?
The price and inventory of MSP430G2252IPW20 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430G2252IPW20 is usually 5 days.
3.What payment methods are accepted for MSP430G2252IPW20?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430G2252IPW20 transactions.
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4.How is shipping managed for MSP430G2252IPW20?
MSP430G2252IPW20 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430G2252IPW20 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 MSP430G2252IPW20?
For technical support, including MSP430G2252IPW20 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430G2252IPW20 requirements.
6.How does Aetrix verify that MSP430G2252IPW20 is sourced from the original manufacturer or authorized distributors?
All MSP430G2252IPW20 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 MSP430G2252IPW20 meets industry standards.
7.What is the process for return or replacement of MSP430G2252IPW20?
All MSP430G2252IPW20 units undergo pre-shipment inspection (PSI). If there is an issue with MSP430G2252IPW20, 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 MSP430G2252IPW20 part is unused and in its original packaging.
Return procedure for MSP430G2252IPW20:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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