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Texas Instruments MSP430G2353IPW20
- Part No.:
- MSP430G2353IPW20
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MSP430G2353IPW20.pdf
- Description:
- IC MCU 16BIT 4KB FLASH 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:317
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Product details
Overview
MSP430G2353IPW20 from Texas Instruments is an ultra-low-power 16-bit RISC mixed-signal microcontroller featuring 16 KB flash, 256 B RAM, a 10-bit 200-ksps ADC with internal reference and autoscan, two 16-bit Timer_A modules, USCI_A0 (UART/LIN/IrDA/SPI) and USCI_B0 (SPI/I²C), and on-chip comparator for analog signal processing. It operates from 1.8 V to 3.6 V and targets battery-powered sensor nodes and portable measurement systems.
For engineers reviewing the MSP430G2353IPW20 datasheet, MSP430G2353IPW20 pinout, MSP430G2353IPW20 application, or MSP430G2353IPW20 equivalent, key selection criteria include its 20-pin TSSOP package, ADC10 channel count (8-channel), standby current (0.5 µA), wake-up time (<1 µs), and integrated Spy-Bi-Wire debug interface - all critical for low-energy embedded control designs.
Technical Context
The MSP430G2353IPW20 implements a 16-bit CPU with constant generators and seven addressing modes, enabling efficient code execution in resource-constrained environments. Its clock system integrates a digitally controlled oscillator (DCO), internal LF oscillator, and external crystal support (32 kHz), delivering MCLK/SMCLK/ACLK with sub-1-µs DCO wake-up.
Peripherals are memory-mapped and accessible via standard instructions. The device supports five low-power modes (LPM0–LPM4), with LPM4 drawing only 0.1 µA (RAM retention), and features interrupt-driven I/O on P1/P2 pins, configurable pullup/pulldown resistors, and capacitive-touch enable bits per port pin.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 62.5-ns instruction cycle; enables deterministic real-time control in compact firmware. |
| Flash / RAM | 16 KB flash / 256 B RAM; sufficient for sensor fusion algorithms and local data buffering without external memory. |
| ADC10 | 10-bit, 200-ksps, 8-channel with internal reference and autoscan; supports simultaneous sampling of multiple analog sensors. |
| Power Modes | Five software-selectable low-power modes; LPM4 draws 0.1 µA with RAM retention - ideal for multi-year battery life. |
| USCI Peripherals | USCI_A0 (UART/LIN/IrDA/SPI) + USCI_B0 (SPI/I²C); enables dual-protocol communication with host MCU or sensors. |
| Debug Interface | Spy-Bi-Wire (2-wire JTAG); allows in-system programming and debugging using minimal PCB footprint and pins. |
| Supply Range | 1.8 V to 3.6 V; compatible with single-cell Li-ion, LiFePO₄, and alkaline battery stacks without regulation. |
Pinout & Package
Package: 20-pin TSSOP (PW20), 0.65 mm pitch, body size 6.5 × 4.4 mm, JEDEC MO-153 compliant.
| 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 signal routing. |
| 5 - P1.3/ADC10CLK/CAOUT/VREF-/VEREF-/A3/CA3 | Analog subsystem terminal | Provides ADC conversion clock, comparator output, negative reference, and ADC channel 3 - central to analog front-end design. |
| 6 - P1.4/SMCLK/CA4/TCK/VREF+/VEREF+/A4/UCB0STE/UCA0CLK | System clock & analog I/O | Delivers SMCLK, positive ADC reference, and USCI clocking - simplifies clock tree and reference sharing. |
| 16 - RST/NMI/SBWTDIO | Reset & debug I/O | Active-low reset, non-maskable interrupt, and bidirectional Spy-Bi-Wire data - supports single-pin debug and robust fault recovery. |
| 17 - TEST/SBWTCK | Debug clock | Test mode select and Spy-Bi-Wire clock - enables production programming and field firmware updates. |
| 19 - XIN/P2.6/TA0.1 | Clock input | Accepts 32.768 kHz crystal or external clock for precision timing; also serves as Timer0_A compare output. |
| 20 - DVSS | Digital ground | Reference return path for digital circuitry; must be connected to system ground plane with low-inductance path. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low standby current | 0.5 µA in LPM3 - extends battery life in intermittently active sensor nodes. |
| Sub-1-µs wake-up | From LPM4 to active mode in <1 µs via DCO - enables rapid response to external events with minimal latency. |
| Integrated ADC reference | Internal 1.5 V or 2.5 V selectable reference eliminates need for external voltage reference IC. |
| Capacitive-touch I/O | Individual pin oscillator enable bits on all P1/P2 pins - supports up to 16-button touch interface without dedicated controller. |
| Built-in brownout detector | Monitors DVCC and asserts reset below threshold - prevents erratic operation during battery sag or cold start. |
Applications
| Smart Sensor Node | Portable Data Logger |
|---|---|
Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and light intensity at 10-minute intervals. IC Role / Device Role / Timing Role: Central controller executing sensor polling, ADC conversion, data preprocessing, and UART transmission to gateway. Use Value: 0.1 µA LPM4 current and 16 KB flash allow >5 years operation on CR2032; integrated ADC and USCI reduce BOM by 3 components. | Use Scenario: Handheld industrial tool logging vibration, pressure, and ambient temperature during equipment maintenance. IC Role / Device Role / Timing Role: Real-time data acquisition engine with timestamping via ACLK and burst-mode SPI storage to SD card. Use Value: 200-ksps ADC captures transient events; 256 B RAM buffers 128 samples before offloading; Spy-Bi-Wire enables field firmware updates. |
| Low-Cost Motor Controller | Energy Harvesting Endpoint |
Use Scenario: Fan speed regulator in HVAC duct using thermistor feedback and PWM-driven MOSFET gate driver. IC Role / Device Role / Timing Role: Closed-loop controller performing analog sensing, PID calculation, and 16-bit Timer_A PWM generation. Use Value: Two independent Timer_A modules provide synchronized PWM and capture for tachometer feedback - no external timer IC needed. | Use Scenario: Wireless node powered by solar cell + supercapacitor, transmitting soil moisture readings every 2 hours. IC Role / Device Role / Timing Role: Energy-aware scheduler managing sleep/wake cycles, ADC sampling, and RF transmit bursts. Use Value: LPM4 + RAM retention preserves state across energy gaps; internal DCO ensures timing accuracy without crystal - reduces component count and leakage paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430G2453IPW20 | 512 B RAM (vs. 256 B), same peripherals and package | Supports larger firmware images and deeper sensor data buffers | Select when application requires >256 B RAM for algorithm state or temporary storage. |
| MSP430G2253IPW20 | No ADC10 module (only comparator), 2 KB flash (vs. 16 KB) | Limited to comparator-based threshold detection, no analog digitization | Select for pure digital control or binary-sensing applications where ADC is unnecessary. |
Compared with MSP430G2453IPW20 and MSP430G2253IPW20, the MSP430G2353IPW20 delivers optimal balance of ADC capability, memory, and power efficiency for mid-tier sensor nodes - offering full 10-bit conversion without over-provisioning RAM or sacrificing ultra-low standby current.
Availability
MSP430G2353IPW20 is available at Aetrix Electronics and suitable for smart sensor nodes, portable data loggers, and low-cost motor controllers requiring stable component supply, long-term lifecycle assurance, and TI-qualified manufacturing traceability.
Supply support for MSP430G2353IPW20 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 emphasis on power efficiency and system integration.
The MSP430G2x53 product line was designed specifically for ultra-low-power mixed-signal applications including battery-operated sensors, portable instrumentation, and energy-harvesting endpoints - prioritizing nanowatt operation and integrated analog peripherals.
FAQ
What is the maximum ADC sampling rate supported by the MSP430G2353IPW20?
The MSP430G2353IPW20 supports a maximum ADC10 sampling rate of 200 ksps (kilo-samples per second) with internal reference and autoscan enabled. This rate is achievable when using the internal ADC10CLK derived from the DCO or external source, and is specified under typical conditions (VCC = 3.0 V, TA = 25°C). The MSP430G2353IPW20's 10-bit resolution and sample-and-hold circuit ensure accurate digitization of fast-changing analog signals in sensor and control applications.
Does the MSP430G2353IPW20 include hardware support for capacitive touch sensing?
Yes, the MSP430G2353IPW20 includes dedicated hardware support for capacitive touch sensing on all P1 and P2 I/O pins. Each pin has an individually programmable oscillator enable bit that activates an internal relaxation oscillator for RC-based touch measurement. This eliminates the need for external touch controller ICs and enables implementation of up to 16-button touch interfaces directly within the MSP430G2353IPW20 firmware using the built-in comparator and Timer_A resources.
What debug interface does the MSP430G2353IPW20 use, and how many pins are required?
The MSP430G2353IPW20 uses the Spy-Bi-Wire (SBW) interface, a 2-wire variant of JTAG, requiring only two pins: RST/NMI/SBWTDIO (pin 16) and TEST/SBWTCK (pin 17). This interface supports full in-circuit emulation, flash programming, and real-time debugging while minimizing PCB footprint and connector complexity - a key advantage for space-constrained designs using the MSP430G2353IPW20.
Can the MSP430G2353IPW20 operate without an external crystal?
Yes, the MSP430G2353IPW20 can operate without an external crystal. It integrates an internal digitally controlled oscillator (DCO) calibrated to deliver stable frequencies up to 16 MHz, plus an internal very-low-power low-frequency oscillator (VLO) for ACLK. Crystal-free operation is fully supported for both active and low-power modes, making the MSP430G2353IPW20 suitable for cost-sensitive and high-reliability applications where crystal aging or board-level stress could compromise timing.
What is the function of the P1.3 pin on the MSP430G2353IPW20?
The P1.3 pin on the MSP430G2353IPW20 serves multiple functions: ADC10CLK (ADC conversion clock output), CAOUT (comparator output), VREF-/VEREF- (ADC negative reference), A3 (ADC channel 3 input), and CA3 (comparator input). Its multifunctionality enables tight integration of analog signal chain elements - for example, using the same pin to drive ADC timing, provide reference, and acquire sensor voltage - reducing external component count and routing complexity in the MSP430G2353IPW20-based design.
MSP430G2353IPW20 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:
- Verified
- Core Processor:
- MSP430 CPU16
- Core Size:
- 16-Bit
- Speed:
- 16MHz
- Connectivity:
- I2C, IrDA, LINbus, SCI, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, DMA, POR, PWM, WDT
- Number of I/O:
- 16
- Program Memory Size:
- 4KB (4K 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:
MSP430G2353IPW20 FAQ
1.How can I place an order for MSP430G2353IPW20 through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430G2353IPW20 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 MSP430G2353IPW20 reliable?
The price and inventory of MSP430G2353IPW20 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430G2353IPW20 is usually 5 days.
3.What payment methods are accepted for MSP430G2353IPW20?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430G2353IPW20 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430G2353IPW20?
MSP430G2353IPW20 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430G2353IPW20 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 MSP430G2353IPW20?
For technical support, including MSP430G2353IPW20 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430G2353IPW20 requirements.
6.How does Aetrix verify that MSP430G2353IPW20 is sourced from the original manufacturer or authorized distributors?
All MSP430G2353IPW20 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 MSP430G2353IPW20 meets industry standards.
7.What is the process for return or replacement of MSP430G2353IPW20?
All MSP430G2353IPW20 units undergo pre-shipment inspection (PSI). If there is an issue with MSP430G2353IPW20, 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 MSP430G2353IPW20 part is unused and in its original packaging.
Return procedure for MSP430G2353IPW20:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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