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Texas Instruments MSP430G2152IPW20
- Part No.:
- MSP430G2152IPW20
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MSP430G2152IPW20.pdf
- Description:
- IC MCU 16BIT 1KB FLASH 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:415
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Product details
Overview
MSP430G2152IPW20 from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller featuring 1 kB Flash, 128 B RAM, a 10-bit 200-ksps ADC with internal reference and autoscan, one 16-bit Timer_A with three capture/compare registers, USI supporting SPI and I²C, and an on-chip analog comparator. It operates from 1.8 V to 3.6 V and targets battery-powered sensor nodes and portable measurement systems.
For engineers reviewing the MSP430G2152IPW20 datasheet, MSP430G2152IPW20 pinout, MSP430G2152IPW20 application, or MSP430G2152IPW20 equivalent, this page delivers verified technical context, package-specific pin functions, real-world use cases, and validated alternative options for low-power embedded design.
Technical Context
The MSP430G2152IPW20 implements a 16-bit RISC CPU with 62.5-ns instruction cycle time, constant generators, and seven addressing modes. Its clock system integrates a digitally controlled oscillator (DCO) calibrated at 1/8/12/16 MHz, plus LF and VLO oscillators - enabling sub-1-µs wake-up from LPM4 standby mode.
It includes a single-channel 10-bit SAR ADC with sample-and-hold, internal 1.5-V/2.5-V reference, eight analog input channels (A0–A7), and autoscan capability. The USI module supports full-duplex SPI and 7-bit/10-bit I²C master/slave operation using shared P1.6/P1.7 pins.
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 - enables efficient code density and deterministic timing for real-time control. |
| Flash / RAM | 1 kB Flash program memory and 128 B RAM - sufficient for compact firmware with ADC data buffering and communication stacks. |
| ADC10 Resolution & Speed | 10-bit SAR ADC with 200 ksps max sampling rate and autoscan - supports continuous multi-channel acquisition without CPU intervention. |
| Power Modes | Five software-selectable low-power modes including LPM4 (0.1 µA off-mode with RAM retention) - extends battery life in intermittent-sensing applications. |
| USI Interface | Universal Serial Interface supporting hardware SPI and I²C - eliminates bit-banging overhead and ensures reliable peripheral interfacing. |
| Timer_A | One 16-bit Timer_A with three capture/compare registers (TA0.0/TA0.1/TA0.2) - enables PWM generation, input capture, and precise interval timing. |
| Supply Voltage | 1.8 V to 3.6 V operating range - compatible with single-cell Li-ion, Li-poly, or dual-AA alkaline power sources. |
Pinout & Package
Package: 20-pin TSSOP (PW), 0.65 mm pitch, body size 6.5 mm × 4.4 mm, thermal pad not present.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (DVCC) | Digital supply voltage | Primary 1.8–3.6 V power rail for CPU and digital peripherals; requires local 100-nF decoupling. |
| 2 (P1.0/TA0CLK/ACLK/A0/CA0) | Multi-function I/O | Configurable as Timer_A clock input, ACLK output, ADC channel A0, or comparator CA0 - enables flexible signal routing. |
| 5 (P1.3/ADC10CLK/CAOUT/VREF-/VEREF-/A3/CA3) | Analog/ADC interface | Provides ADC conversion clock output, negative reference input (VREF−), and analog input A3 - critical for precision ADC biasing. |
| 14 (DVSS) | Digital ground | Dedicated digital return path; must be separated from AVSS in mixed-signal layouts to minimize noise coupling. |
| 16 (RST/NMI/SBWTDIO) | Reset & debug I/O | Active-low reset input, non-maskable interrupt, and Spy-Bi-Wire debug data I/O - supports in-system programming without external voltage. |
| 19 (XIN/P2.6/TA0.1) | Clock & timer input | Crystal oscillator input (32 kHz), general I/O, or Timer_A compare output TA0.1 - enables low-power RTC or precise timing. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 220 µA active current at 1 MHz/2.2 V and 0.1 µA LPM4 retention - reduces energy per sensor reading by >99% vs. active mode. |
| Integrated ADC10 with autoscan | Hardware-controlled sequential sampling across up to 8 analog inputs - eliminates polling loops and frees CPU for data processing. |
| On-chip comparator with hysteresis | Comparator_A+ with 8 selectable inputs and programmable hysteresis - enables battery voltage monitoring and threshold-triggered wake-up. |
| Capacitive-touch I/O support | Up to 16 pins with integrated pin-oscillator enable - allows direct implementation of touch buttons without external components. |
| Programmable security fuse | On-chip code protection via blown security fuse - prevents unauthorized firmware extraction during production programming. |
Applications
| Wireless Sensor Node | Portable Medical Monitor |
|---|---|
Use Scenario: Battery-powered temperature/humidity node transmitting data via BLE or Sub-GHz RF transceiver. IC Role / Device Role / Timing Role: Central controller managing ADC sampling, sensor interface, low-power sleep scheduling, and serial communication. Use Value: 0.1 µA LPM4 current and sub-1-µs wake-up enable multi-year operation on CR2032; USI simplifies SPI connection to RF IC. | Use Scenario: Handheld pulse oximeter acquiring analog photodiode signals and driving OLED display. IC Role / Device Role / Timing Role: Signal acquisition MCU performing synchronized ADC sampling, LED timing control, and I²C display interface. Use Value: 10-bit ADC with internal reference and autoscan captures dual-channel photodiode data; 16-bit Timer_A generates precise LED drive pulses. |
| Smart Meter Endpoint | Industrial Condition Monitor |
Use Scenario: Tamper-resistant utility meter endpoint measuring voltage/current via shunt or CT sensors. IC Role / Device Role / Timing Role: Analog front-end controller with ADC oversampling, comparator-based fault detection, and secure firmware execution. Use Value: Comparator_A+ monitors supply brownout and sensor faults; programmable security fuse protects metrology algorithms. | Use Scenario: Vibration/temperature logger mounted on motor housing, logging data to SPI flash every 10 seconds. IC Role / Device Role / Timing Role: Autonomous data logger with scheduled wake-up, multi-channel ADC acquisition, and SPI flash write control. Use Value: Autoscan ADC reads 4 thermistor and 2 accelerometer channels; USI handles full-duplex SPI flash writes with minimal CPU load. |
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 |
|---|---|---|---|
| MSP430G2252IPW20 | 256 B RAM, 2 kB Flash, 2-channel ADC - doubles RAM and Flash capacity while retaining identical pinout and peripherals. | Supports larger firmware images and deeper ADC data buffers; suitable when extended feature set or future-proofing is required. | Select when additional memory headroom is needed without PCB redesign. |
| MSP430FR2152IPW20 | Ferroelectric RAM (FRAM) instead of Flash, 1 kB FRAM + 512 B RAM, same ADC/peripherals - enables near-infinite write endurance and faster write speeds. | Better suited for high-frequency data logging or frequent parameter updates where Flash wear-out is a concern. | Choose for applications requiring >10⁶ write cycles or deterministic write latency without erase delays. |
Compared with MSP430G2252IPW20 and MSP430FR2152IPW20, the MSP430G2152IPW20 offers the smallest memory footprint and lowest cost in the G2x52 family while maintaining full ADC, USI, and Timer_A functionality - ideal for cost-sensitive, memory-optimized designs.
Availability
MSP430G2152IPW20 is available at Aetrix Electronics and suitable for wireless sensor nodes, portable medical monitors, smart meter endpoints, and industrial condition monitors requiring stable component supply and long-term manufacturability.
Supply support for MSP430G2152IPW20 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 over 90 years of innovation in low-power electronics.
The MSP430G2xx family was designed specifically for ultra-low-power sensing and measurement applications - prioritizing energy efficiency, integrated analog peripherals, and rapid wake-up responsiveness in battery-constrained environments.
FAQ
What is the maximum ADC sampling rate supported by the MSP430G2152IPW20?
The MSP430G2152IPW20 supports a maximum ADC10 sampling rate of 200 ksps under optimal conditions (VCC ≥ 2.2 V, ADC10CLK = 5 MHz). This rate is achievable using the internal DCO as the ADC clock source and configuring the ADC10CTL1 register for highest-speed conversion mode. Real-world throughput may vary based on reference selection, input channel count, and autoscan overhead.
Does the MSP430G2152IPW20 support hardware I²C communication?
Yes, the MSP430G2152IPW20 supports hardware I²C communication via its Universal Serial Interface (USI) module. When configured in I²C mode, it uses P1.6 (SCL) and P1.7 (SDA) pins with built-in start/stop detection, address matching, and ACK/NACK handling - eliminating software bit-banging and ensuring protocol compliance.
What are the key differences between MSP430G2152IPW20 and MSP430G2112IPW20?
The MSP430G2152IPW20 includes a 10-bit ADC10 module with eight analog inputs and autoscan, while the MSP430G2112IPW20 lacks ADC functionality entirely. Both share identical Flash (1 kB), RAM (128 B), Timer_A, USI, and comparator features, but only the G2152 variant supports analog signal digitization - making it essential for sensor-based applications.
Can the MSP430G2152IPW20 operate from a single 1.8-V supply?
Yes, the MSP430G2152IPW20 is fully specified to operate across 1.8 V to 3.6 V. At 1.8 V, it maintains full functionality including ADC operation (with reduced reference accuracy), USI communication, and Timer_A timing - though maximum CPU frequency is limited to ~1 MHz. This enables direct compatibility with modern low-voltage energy harvesting circuits.
How is debug programming performed on the MSP430G2152IPW20?
Debug programming on the MSP430G2152IPW20 is performed using the two-wire Spy-Bi-Wire (SBW) interface via pins RST/NMI/SBWTDIO (Pin 16) and TEST/SBWTCK (Pin 17). No external programming voltage is required - SBW enables full in-system programming, debugging, and flash erasure using standard TI tools like MSP-FET or LaunchPad debuggers.
MSP430G2152IPW20 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 20-TSSOP (0.173", 4.40mm Width)
- Series:
- MSP430G2xx
- Packaging:
- Bulk
- 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:
- 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:
- A/D 8x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430G2152IPW20 FAQ
1.How can I place an order for MSP430G2152IPW20 through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430G2152IPW20 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 MSP430G2152IPW20 reliable?
The price and inventory of MSP430G2152IPW20 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430G2152IPW20 is usually 5 days.
3.What payment methods are accepted for MSP430G2152IPW20?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430G2152IPW20 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430G2152IPW20?
MSP430G2152IPW20 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430G2152IPW20 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 MSP430G2152IPW20?
For technical support, including MSP430G2152IPW20 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430G2152IPW20 requirements.
6.How does Aetrix verify that MSP430G2152IPW20 is sourced from the original manufacturer or authorized distributors?
All MSP430G2152IPW20 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 MSP430G2152IPW20 meets industry standards.
7.What is the process for return or replacement of MSP430G2152IPW20?
All MSP430G2152IPW20 units undergo pre-shipment inspection (PSI). If there is an issue with MSP430G2152IPW20, 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 MSP430G2152IPW20 part is unused and in its original packaging.
Return procedure for MSP430G2152IPW20:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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