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Texas Instruments MSP430G2253IPW20R
- Part No.:
- MSP430G2253IPW20R
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MSP430G2253IPW20R.pdf
- Description:
- IC MCU 16BIT 2KB FLASH 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,364
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Product details
Overview
MSP430G2253IPW20R from Texas Instruments is an ultra-low-power 16-bit 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 capacitive-touch-enabled I/O. It operates from 1.8 V to 3.6 V and targets battery-powered sensor nodes and portable measurement systems.
For engineers reviewing the MSP430G2253IPW20R datasheet, MSP430G2253IPW20R pinout, MSP430G2253IPW20R application, or MSP430G2253IPW20R equivalent, key selection criteria include its 20-pin TSSOP package, integrated ADC10 channel count, Spy-Bi-Wire debug interface, low-power mode wake-up latency (<1 µs), and compatibility with TI's MSP430x2xx family toolchain and firmware libraries.
Technical Context
The MSP430G2253IPW20R implements a 16-bit RISC CPU with 62.5-ns instruction cycle time and constant generators for optimized code efficiency. Its clock system integrates a digitally controlled oscillator (DCO), internal LF oscillator, and external crystal support (32 kHz), enabling flexible MCLK/SMCLK/ACLK configuration.
It features dual 16-bit Timer_A modules (TA0 and TA1), each with three capture/compare registers, supporting PWM generation, input capture, and interval timing. The USCI peripherals provide hardware-configurable UART, SPI, and I²C communication without CPU overhead, while the ADC10 supports up to eight analog inputs with internal VREF+/VREF− and sample-and-hold.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 16 registers and 62.5-ns instruction cycle at 16 MHz |
| Flash / RAM | 16 KB flash memory for program storage; 256 B RAM for runtime variables and stack |
| ADC Resolution | 10-bit successive-approximation ADC with 200-ksps sampling rate and autoscan across 8 channels |
| Supply Voltage | 1.8 V to 3.6 V operation - enables direct use with single-cell Li-ion or two-cell alkaline batteries |
| Low-Power Modes | Five software-selectable modes including LPM4 (0.1 µA RAM retention) and sub-1-µs wake-up from standby |
| Communication | USCI_A0 (UART/LIN/IrDA/SPI) + USCI_B0 (SPI/I²C) - supports dual synchronous/asynchronous protocols simultaneously |
| Debug Interface | Spy-Bi-Wire (2-wire JTAG) - enables in-system programming and real-time debugging with minimal PCB footprint |
Pinout & Package
Package: 20-pin TSSOP (PW20), 0.65 mm pitch, body size 6.5 mm × 4.4 mm, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - DVCC | Digital supply voltage | Primary 1.8–3.6 V power rail 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 input A0, or comparator input CA0 |
| 5 - P1.3/ADC10CLK/CAOUT/VREF−/VEREF−/A3/CA3 | Analog reference & ADC input | Provides ADC negative reference (VREF−), ADC input A3, and comparator output (CAOUT) |
| 6 - P1.4/SMCLK/CA4/TCK/VREF+/VEREF+/A4/UCB0STE/UCA0CLK | Reference & clock I/O | Supplies ADC positive reference (VREF+), SMCLK output, JTAG TCK, and USCI clock/enable signals |
| 16 - RST/NMI/SBWTDIO | Reset & debug I/O | Active-low reset input, non-maskable interrupt, and bidirectional Spy-Bi-Wire data line |
| 17 - TEST/SBWTCK | Debug clock | JTAG test select and Spy-Bi-Wire clock input - required for programming and emulation |
| 19 - XIN/P2.6/TA0.1 | Clock input | Crystal oscillator input (32 kHz) or general-purpose I/O/timer input - must be paired with XOUT |
| 20 - DVSS | Digital ground | Return path for DVCC; must be connected to system ground plane with low-inductance path |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low active current | 230 µA at 1 MHz and 2.2 V - extends battery life in always-on sensing applications |
| Integrated ADC10 | 10-bit, 200-ksps, 8-channel autoscan with internal reference - eliminates external reference IC and reduces BOM |
| Capacitive touch I/O | Up to 24 pins support charge-transfer touch sensing - enables button/slider implementation without dedicated controller |
| Built-in comparator | 8-channel analog comparator (Comp_A+) with programmable hysteresis - supports threshold detection and slope A/D conversion |
| On-chip BSL | UART-based bootloader with password protection - allows field firmware updates without debugger hardware |
Applications
| Smart Sensor Node | Portable Medical Monitor |
|---|---|
Use Scenario: Battery-powered temperature/humidity sensor transmitting data via UART to a gateway. IC Role / Device Role / Timing Role: Main system controller executing sensor readout, ADC conversion, data formatting, and serial transmission. Use Value: Ultra-low standby current (0.5 µA) and fast wake-up (<1 µs) minimize energy per measurement cycle. | Use Scenario: Wearable pulse oximeter acquiring analog photodiode signals and computing SpO₂. IC Role / Device Role / Timing Role: Analog front-end controller performing synchronized ADC sampling, digital filtering, and LED drive timing. Use Value: Integrated 10-bit ADC with internal reference and autoscan enables precise ratiometric measurements without external components. |
| Industrial Control Panel | Energy Harvesting IoT Endpoint |
Use Scenario: Touch-enabled HMI on factory equipment with LED indicators and push-button feedback. IC Role / Device Role / Timing Role: Capacitive touch processor and GPIO manager driving LEDs and reading tactile inputs. Use Value: Native capacitive-touch I/O support eliminates external touch controller IC and reduces layer count. | Use Scenario: Solar- or thermal-harvested environmental monitor operating intermittently on µW-scale power budgets. IC Role / Device Role / Timing Role: Power-aware system orchestrator managing energy storage, sensor activation, and burst transmission. Use Value: LPM4 current of 0.1 µA with RAM retention preserves state between infrequent wake-ups, maximizing usable harvested energy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430G2553IPW20R | 512 B RAM (vs. 256 B); same 16 KB flash, ADC10, USCI, and pinout | Higher RAM enables larger buffers for communication stacks or signal processing | Select when application requires >256 B RAM for firmware complexity or protocol handling |
| MSP430G2233IPW20R | No ADC10; retains 16 KB flash, 256 B RAM, USCI, timers, and comparator | Targeted at digital-control-only applications where analog conversion is handled externally | Select when ADC functionality is unnecessary and cost reduction is prioritized |
Compared with MSP430G2253IPW20R, the MSP430G2553IPW20R offers double RAM for enhanced firmware scalability, while the MSP430G2233IPW20R removes ADC10 to reduce cost and power in purely digital control roles - both share identical 20-pin TSSOP packaging and peripheral feature set except ADC presence.
Availability
MSP430G2253IPW20R is available at Aetrix Electronics and suitable for smart sensor nodes, portable medical monitors, and industrial HMI panels requiring stable component supply, long-term manufacturability, and TI-qualified automotive-grade traceability.
Supply support for MSP430G2253IPW20R 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, reliability, and system integration.
The MSP430G2xx family is designed for ultra-low-power embedded applications including battery-operated sensors, portable instrumentation, and energy-constrained IoT endpoints - emphasizing rapid wake-up, integrated analog peripherals, and minimal active current.
FAQ
What is the maximum ADC sampling rate supported by the MSP430G2253IPW20R?
The MSP430G2253IPW20R supports a maximum ADC10 sampling rate of 200 ksps (kilo-samples per second) with internal reference and autoscan enabled. This rate assumes optimal clock configuration (e.g., ADC10CLK derived from SMCLK at ≥5 MHz) and no additional software overhead during conversion sequencing. Real-world throughput may vary based on channel count, reference source, and CPU load during sampling.
Does the MSP430G2253IPW20R support hardware UART with auto-baudrate detection?
Yes, the MSP430G2253IPW20R's USCI_A0 module supports enhanced UART with LIN-compatible auto-baudrate detection. This feature allows the MSP430G2253IPW20R to automatically synchronize to incoming serial frames without prior knowledge of the transmitter's baud rate, simplifying interoperability in multi-node sensor networks where timing precision varies.
Can the MSP430G2253IPW20R operate from a single 1.8-V supply?
Yes, the MSP430G2253IPW20R is fully specified to operate across 1.8 V to 3.6 V, including stable execution at 1.8 V. At this minimum voltage, it supports up to 1 MHz CPU frequency and all core peripherals including ADC10 (with reduced sampling rate), USCI, timers, and comparator - making it suitable for single-cell lithium primary or rechargeable battery systems.
How many I/O pins on the MSP430G2253IPW20R support capacitive touch sensing?
The MSP430G2253IPW20R supports capacitive touch sensing on up to 24 I/O pins across Ports P1, P2, and P3 - though only 16 are accessible in the 20-pin TSSOP package (PW20). Pins P1.0–P1.7, P2.0–P2.5, and P2.6–P2.7 are designated as touch-capable, enabling slider, wheel, or button implementations using TI's CapTIvate™ software library without external components.
Is the MSP430G2253IPW20R pin-compatible with other devices in the MSP430G2xx family?
Yes, the MSP430G2253IPW20R shares identical pinout and electrical characteristics with other 20-pin TSSOP variants in the MSP430G2xx family, including MSP430G2553IPW20R and MSP430G2233IPW20R. This allows drop-in replacement within the same package footprint when upgrading RAM or removing ADC functionality, provided firmware and schematic constraints (e.g., VREF usage) are verified.
MSP430G2253IPW20R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 20-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, IrDA, LINbus, SCI, SPI, UART/USART
- 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:
MSP430G2253IPW20R FAQ
1.How can I place an order for MSP430G2253IPW20R through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430G2253IPW20R 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 MSP430G2253IPW20R reliable?
The price and inventory of MSP430G2253IPW20R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430G2253IPW20R is usually 5 days.
3.What payment methods are accepted for MSP430G2253IPW20R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430G2253IPW20R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430G2253IPW20R?
MSP430G2253IPW20R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430G2253IPW20R 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 MSP430G2253IPW20R?
For technical support, including MSP430G2253IPW20R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430G2253IPW20R requirements.
6.How does Aetrix verify that MSP430G2253IPW20R is sourced from the original manufacturer or authorized distributors?
All MSP430G2253IPW20R 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 MSP430G2253IPW20R meets industry standards.
7.What is the process for return or replacement of MSP430G2253IPW20R?
All MSP430G2253IPW20R units undergo pre-shipment inspection (PSI). If there is an issue with MSP430G2253IPW20R, 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 MSP430G2253IPW20R part is unused and in its original packaging.
Return procedure for MSP430G2253IPW20R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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