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Texas Instruments MSP430G2152IPW14R
- Part No.:
- MSP430G2152IPW14R
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MSP430G2152IPW14R.pdf
- Description:
- IC MCU 16BIT 1KB FLASH 14TSSOP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MSP430G2152IPW14R from Texas Instruments is an ultra-low-power 16-bit RISC 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/I²C, and an on-chip 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 MSP430G2152IPW14R datasheet, MSP430G2152IPW14R pinout, MSP430G2152IPW14R application, or MSP430G2152IPW14R equivalent, key selection criteria include its 14-pin TSSOP package, ADC10 channel count (8), active-mode current (220 µA @ 1 MHz, 2.2 V), five power-saving modes, and Spy-Bi-Wire debug interface compatibility.
Technical Context
The MSP430G2152IPW14R implements a 16-bit CPU with seven addressing modes and 51 instructions, integrated with a basic clock module offering DCO (calibrated up to 16 MHz), LF oscillator, and 32-kHz crystal support. Its ADC10 uses a SAR architecture with internal reference and sample-and-hold, enabling autonomous conversions via the Data Transfer Controller (DTC).
It features two 8-bit I/O ports (P1 with 8 pins, P2 with 2 pins in 14-pin TSSOP), programmable pullup/pulldown resistors, capacitive-touch enable bits per pin, and interrupt capability on all P1/P2 pins. The USI module supports both 3-wire SPI and I²C protocols using shared SDA/SCL/SDO/SDI pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 16 general-purpose registers and constant generators for optimized code efficiency |
| Flash / RAM | 1 kB flash memory (512-byte segments) and 128 B RAM - sufficient for compact firmware with calibration data storage |
| ADC10 Resolution & Speed | 10-bit SAR ADC with 200-ksps sampling rate and autoscan - supports continuous multi-channel analog monitoring without CPU intervention |
| Power Consumption | 220 µA active mode @ 1 MHz/2.2 V; 0.5 µA standby; 0.1 µA off mode with RAM retention - enables multi-year battery life in coin-cell applications |
| Clock System | Digital Controlled Oscillator (DCO) with four factory-calibrated frequencies (1/8/12/16 MHz) and low-frequency oscillator - enables sub-µs wake-up from LPM4 |
| Debug Interface | Spy-Bi-Wire (2-pin) interface - allows in-system programming and emulation with minimal PCB footprint and no external voltage required |
| Operating Voltage | 1.8 V to 3.6 V supply range - compatible with single-cell Li-ion, LiFePO₄, and dual-AA alkaline systems |
Pinout & Package
Package: 14-pin TSSOP (PW), 5.0 mm × 4.4 mm, 0.65 mm pitch, surface-mount.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (DVCC) | Digital supply voltage | Primary 1.8–3.6 V power input for core 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 system timing and sensing |
| 3 (P1.1/TA0.0/A1/CA1) | Multi-function I/O | Timer capture/compare output, ADC channel 1, comparator input - supports PWM generation and analog signal acquisition |
| 4 (P1.2/TA0.1/A2/CA2) | Multi-function I/O | Timer capture/compare output, ADC channel 2, comparator input - extends timing and sensing capability across multiple channels |
| 5 (P1.3/ADC10CLK/CAOUT/A3/VREF-/VEREF-/CA3) | ADC & comparator terminal | ADC conversion clock output, comparator output, ADC negative reference, and analog input A3 - critical for precision ADC operation and threshold detection |
| 6 (P1.4/TA0.2/SMCLK/A4/VREF+/VEREF+/CA4/TCK) | Multi-function I/O | Timer capture/compare, SMCLK output, ADC positive reference, JTAG test clock - integrates clock distribution, reference control, and debug |
| 7 (P1.5/TA0.0/SCLK/A5/CA5/TMS) | Multi-function I/O | Timer compare output, USI clock, ADC channel 5, JTAG mode select - enables serial communication and boundary scan |
| 8 (P1.6/TA0.1/SDO/SCL/A6/CA6/TDI/TCLK) | Multi-function I/O | USI data output, I²C clock, ADC channel 6, comparator input, JTAG data input - consolidates communication, sensing, and programming |
| 9 (P1.7/SDI/SDA/CAOUT/A7/CA7/TDO/TDI) | Multi-function I/O | USI data input, I²C data, ADC channel 7, comparator output, JTAG data output - supports full-duplex SPI, bidirectional I²C, and debug |
| 10 (RST/NMI/SBWTDIO) | Reset & debug I/O | Active-low reset, non-maskable interrupt, and Spy-Bi-Wire bidirectional data - enables robust system initialization and 2-pin debugging |
| 11 (TEST/SBWTCK) | Debug clock input | Test mode select and Spy-Bi-Wire clock - required for programming and real-time emulation without JTAG header |
| 12 (XOUT/P2.7) | Oscillator output | Crystal oscillator output or general-purpose I/O - used with external 32-kHz crystal for RTC or low-power timing |
| 13 (XIN/P2.6/TA0.1) | Oscillator input | Crystal oscillator input or timer compare output - forms low-power clock source or extends timing functionality |
| 14 (DVSS) | Digital ground | Reference return path for DVCC; must be connected to system ground plane with low-inductance routing |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | Sub-µs wake-up from LPM4 and 0.1 µA RAM-retention mode enable multi-year operation on CR2032 batteries |
| Integrated 10-bit ADC10 | Hardware autoscan and DTC allow up to 8-channel sequential conversions stored directly to RAM without CPU involvement |
| Universal Serial Interface (USI) | Single hardware module supports both 3-wire SPI and I²C protocols - reduces peripheral count and firmware complexity |
| Capacitive-touch I/O capability | Individual pin-oscillator enable bits on P1.x allow low-cost touch-button implementation without external components |
| Factory-calibrated DCO | Four DCO frequencies (1/8/12/16 MHz) pre-stored in info memory eliminate need for external crystal in many timing-critical applications |
| Brownout detector | On-chip circuit generates reliable reset during power ramp-up/down - ensures deterministic startup and prevents erratic behavior |
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: MSP430G2152IPW14R serves as main controller, executing ADC sampling, USI-based sensor communication, and low-power sleep scheduling. Use Value: 0.5 µA standby current and 1 kB flash enable >3-year operation on a single CR2032 cell while supporting firmware updates. | Use Scenario: Wearable pulse oximeter acquiring analog photodiode signals and driving LED emitters. IC Role / Device Role / Timing Role: MSP430G2152IPW14R performs synchronized ADC sampling, LED timing control via Timer_A outputs, and I²C display communication. Use Value: Integrated 10-bit ADC with internal reference and autoscan eliminates external ADC and reference IC, reducing BOM cost by $0.32. |
| Industrial Control Panel | Energy Harvesting IoT Endpoint |
Use Scenario: DIN-rail mounted HMI panel with tactile buttons, status LEDs, and RS-485 backhaul via level-shifter. IC Role / Device Role / Timing Role: MSP430G2152IPW14R handles capacitive button scanning, LED PWM dimming, and UART-to-USI bridging for RS-485 transceiver control. Use Value: Programmable pullup/pulldown resistors and pin-oscillator enable simplify front-panel design and reduce external passive count by 12. | Use Scenario: Solar-powered soil moisture sensor transmitting data hourly via LoRaWAN gateway using energy harvesting PMIC. IC Role / Device Role / Timing Role: MSP430G2152IPW14R manages ultra-low-duty-cycle operation: wakes on timer interrupt, samples ADC, processes data, triggers RF transmission, then returns to LPM4. Use Value: 0.1 µA off-mode current with RAM retention preserves state across energy gaps, enabling reliable operation under intermittent light conditions. |
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 |
|---|---|---|---|
| MSP430G2252IPW14R | 2 kB flash, 256 B RAM, same peripherals and pinout - adds firmware headroom for larger sensor fusion algorithms | Required when application logic exceeds 1 kB flash or needs >128 B RAM for buffer-intensive tasks | Select for future-proofing firmware growth without PCB redesign |
| MSP430G2132IPW14R | No ADC10; includes 16-bit sigma-delta ADC (SD16A) instead - higher resolution (16-bit) but lower speed (200 sps max) | Suitable for precision DC measurements (e.g., strain gauge, thermopile) where resolution > speed | Choose when 16-bit accuracy is mandatory and 200-ksps sampling is unnecessary |
Compared with MSP430G2252IPW14R, the MSP430G2152IPW14R trades flash/RAM capacity for lower unit cost and identical low-power performance; versus MSP430G2132IPW14R, it prioritizes high-speed sampling over resolution - making it optimal for dynamic sensor data acquisition within tight BOM constraints.
Availability
MSP430G2152IPW14R is available at Aetrix Electronics and suitable for smart sensor nodes, portable medical monitors, industrial control panels, and energy harvesting IoT endpoints requiring stable component supply and long-term manufacturability.
Supply support for MSP430G2152IPW14R 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 for industrial, automotive, and personal electronics markets.
The MSP430G2xx family was designed specifically for ultra-low-power, cost-sensitive embedded applications - emphasizing rapid wake-up, integrated analog peripherals, and minimal external component requirements.
FAQ
What is the maximum ADC sampling rate supported by the MSP430G2152IPW14R?
The MSP430G2152IPW14R supports a maximum ADC10 sampling rate of 200 ksps (kilo-samples per second) using its 10-bit successive approximation register (SAR) architecture. This rate is achievable with internal reference and autoscan enabled, and is specified under typical conditions of VCC = 2.2 V and TA = 25°C. The MSP430G2152IPW14R achieves this performance while maintaining low power consumption, making it suitable for real-time sensor data acquisition in battery-constrained designs.
Does the MSP430G2152IPW14R support hardware UART communication?
No, the MSP430G2152IPW14R does not include a dedicated hardware UART peripheral. It features a Universal Serial Interface (USI) module that supports SPI and I²C protocols only. UART functionality must be implemented in firmware using GPIO bit-banging or timer-based software UART - a common practice in ultra-low-power applications where asynchronous serial is infrequent. The MSP430G2152IPW14R's USI is optimized for synchronous communication, not asynchronous start-stop framing.
How many I/O pins are available on the MSP430G2152IPW14R in its 14-pin TSSOP package?
The MSP430G2152IPW14R provides 8 programmable I/O pins on Port 1 (P1.0 through P1.7) and 2 additional I/O pins on Port 2 (P2.6 and P2.7), totaling 10 usable digital I/O pins in the 14-pin TSSOP (PW) package. Pins P2.0–P2.5 are not bonded out in this package variant, as confirmed in Table 1 and the PW package pinout diagram. All 10 I/Os support interrupt, pullup/pulldown enable, and capacitive-touch oscillator configuration.
Can the MSP430G2152IPW14R operate without an external crystal?
Yes, the MSP430G2152IPW14R can operate without an external crystal. Its integrated digitally controlled oscillator (DCO) provides factory-calibrated frequencies of 1 MHz, 8 MHz, 12 MHz, and 16 MHz, enabling full functionality including ADC, USI, and Timer_A operation. An external 32-kHz crystal is optional and only required if precise real-time clock (RTC) functionality or ultra-low-jitter ACLK is needed. The MSP430G2152IPW14R's DCO achieves sub-µs wake-up from LPM4, making crystal-free operation viable for most low-power sensing applications.
What debug interface does the MSP430G2152IPW14R use, and how many pins are required?
The MSP430G2152IPW14R uses the Spy-Bi-Wire (SBW) debug interface, which requires only two pins: RST/NMI/SBWTDIO (pin 10) and TEST/SBWTCK (pin 11). This 2-pin interface supports full in-system programming, real-time emulation, and breakpoint debugging - eliminating the need for a 4-pin JTAG header. The MSP430G2152IPW14R does not require external programming voltage, simplifying development and field firmware updates.
MSP430G2152IPW14R 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:
- 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:
MSP430G2152IPW14R FAQ
1.How can I place an order for MSP430G2152IPW14R through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430G2152IPW14R 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 MSP430G2152IPW14R reliable?
The price and inventory of MSP430G2152IPW14R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430G2152IPW14R is usually 5 days.
3.What payment methods are accepted for MSP430G2152IPW14R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430G2152IPW14R transactions.
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4.How is shipping managed for MSP430G2152IPW14R?
MSP430G2152IPW14R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430G2152IPW14R 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 MSP430G2152IPW14R?
For technical support, including MSP430G2152IPW14R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430G2152IPW14R requirements.
6.How does Aetrix verify that MSP430G2152IPW14R is sourced from the original manufacturer or authorized distributors?
All MSP430G2152IPW14R 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 MSP430G2152IPW14R meets industry standards.
7.What is the process for return or replacement of MSP430G2152IPW14R?
All MSP430G2152IPW14R units undergo pre-shipment inspection (PSI). If there is an issue with MSP430G2152IPW14R, 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 MSP430G2152IPW14R part is unused and in its original packaging.
Return procedure for MSP430G2152IPW14R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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