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Texas Instruments MSP430G2253IPW28
- Part No.:
- MSP430G2253IPW28
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 28-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MSP430G2253IPW28.pdf
- Description:
- IC MCU 16BIT 2KB FLASH 28TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:427
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Product details
Overview
MSP430G2253IPW28 from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller featuring 2 kB flash, 256 B RAM, a 10-bit 200-ksps ADC with internal reference and autoscan, two 16-bit Timer_A modules with three capture/compare registers each, and USCI_A0 (UART/LIN/IrDA/SPI) and USCI_B0 (SPI/I²C) interfaces. It operates from 1.8 V to 3.6 V and supports capacitive-touch I/O on up to 24 pins - used in battery-powered sensor nodes and portable data loggers.
For engineers reviewing the MSP430G2253IPW28 datasheet, MSP430G2253IPW28 pinout, MSP430G2253IPW28 application, or MSP430G2253IPW28 equivalent, key selection criteria include its 28-pin TSSOP package, ADC10 channel count (8), standby current (0.5 µA), wake-up time (<1 µs), and Spy-Bi-Wire debug interface compatibility.
Technical Context
The MSP430G2253IPW28 implements a 16-bit RISC CPU with 62.5-ns instruction cycle time, digitally controlled oscillator (DCO) calibrated for 1–16 MHz operation, and five software-selectable low-power modes including LPM4 (0.1 µA off-mode with RAM retention). Its clock system integrates ACLK (32-kHz crystal or LF oscillator), MCLK (CPU), and SMCLK (peripherals).
Peripherals include an 8-channel analog comparator (Comp_A+), brownout detector, on-chip BSL for UART-based programming, and port P3 (available only on 28-/32-pin variants) enabling additional timer compare outputs and I/O. The device lacks hardware multiplier and DMA but supports single-cycle register operations and seven addressing modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 16 registers and constant generators; enables high code efficiency and deterministic timing for real-time sensor control. |
| Flash / RAM | 2 kB flash memory (512-byte segments) and 256 B RAM; sufficient for compact firmware with ADC data buffering and communication stacks. |
| ADC10 | 10-bit, 200-ksps SAR ADC with internal reference, sample-and-hold, autoscan, and 8 input channels; supports direct sensor-to-digital conversion without external components. |
| Power Modes | Five low-power modes: active (230 µA @ 1 MHz, 2.2 V), standby (0.5 µA), and off (0.1 µA with RAM retention); extends coin-cell battery life to multi-year operation. |
| USCI Peripherals | USCI_A0 (UART/LIN/IrDA/SPI) and USCI_B0 (SPI/I²C); enables dual-protocol serial connectivity for host interfacing and sensor network bridging. |
| Timer System | Two 16-bit Timer_A modules (TA0, TA1), each with three capture/compare registers; supports PWM generation, input capture, interval timing, and quadrature decoding. |
| Debug Interface | Spy-Bi-Wire (2-wire JTAG) with SBWTDIO/SBWTCK pins; allows in-system programming and full-speed debugging using low-pin-count hardware. |
Pinout & Package
Package: 28-pin TSSOP (PW28), 0.65 mm pitch, body size 9.7 × 4.4 mm. Pinout validated per TI SLAS735J Rev. May 2013, Figure "Device Pinout, MSP430G2x13 and MSP430G2x53, 28-Pin Devices, TSSOP".
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 28 | DVCC / DVSS | Digital supply (1.8–3.6 V) and ground; decoupling capacitor required at Pin 1 for stable core operation. |
| 2, 3, 4, 5, 6, 7, 14, 15 | P1.0–P1.7 | Port 1 bidirectional I/O with interrupt, pullup/down, and capacitive-touch enable; P1.1/P1.5 serve as BSL UART TX/RX. |
| 8, 9, 10, 11, 12, 13, 16, 17, 18, 19, 20, 21 | P2.0–P2.7, P3.0–P3.7 | Port 2/3 I/O (P3 available only on 28-/32-pin); support timer compare outputs (e.g., TA0.0–TA0.2, TA1.0–TA1.2) and USCI signals. |
| 22, 23 | RST/NMI/SBWTDIO, TEST/SBWTCK | Spy-Bi-Wire debug interface; enables programming, reset, and non-maskable interrupt via shared pins - no external debugger header needed. |
| 24, 25, 26, 27 | XIN/P2.6, XOUT/P2.7, AVCC, AVSS | 32-kHz crystal connection (XIN/XOUT), analog supply (AVCC = DVCC), and analog ground; critical for precision ADC and low-jitter timing. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low standby current | 0.5 µA in LPM3 mode with ACLK active - enables years of operation on CR2032 batteries in wireless sensors. |
| Integrated ADC10 with autoscan | 8-channel 10-bit sampling at 200 ksps with internal reference and automatic channel sequencing - eliminates external mux and reference ICs. |
| Capacitive-touch I/O capability | Individual pin oscillator enable on all P1/P2 pins - supports touch-button and slider interfaces without dedicated controller IC. |
| USCI dual-serial interface | Independent USCI_A0 (UART/LIN/IrDA/SPI) and USCI_B0 (SPI/I²C) - permits simultaneous host UART comms and sensor I²C bus management. |
| On-chip BSL with UART | Bootloader accessible via P1.1/P1.5 with user-defined password - enables field firmware updates without JTAG hardware. |
Applications
| Smart Sensor Node | Portable Data Logger |
|---|---|
Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and light via analog sensors. IC Role / Device Role / Timing Role: Central MCU executing ADC sampling, data preprocessing, and UART transmission to gateway every 10 seconds. Use Value: 0.5 µA standby current and <1 µs wake-up allow >5-year CR2032 life; integrated ADC10 and USCI reduce BOM by 3 discrete ICs. | Use Scenario: Handheld industrial logger capturing vibration, pressure, and voltage waveforms during equipment maintenance. IC Role / Device Role / Timing Role: Real-time signal acquisition controller with 200-ksps ADC sampling, timestamping via Timer_A, and SPI storage to microSD. Use Value: 2 kB flash stores firmware + 1 kB ring buffer; 16-bit Timer_A provides precise 100-µs sampling intervals without jitter. |
| Low-Cost Touch Interface | Energy-Harvesting IoT Endpoint |
Use Scenario: Appliance control panel with 8 capacitive buttons and LED feedback. IC Role / Device Role / Timing Role: Dedicated touch controller managing debounce, proximity detection, and LED PWM dimming. Use Value: Built-in capacitive-touch oscillator on all P1/P2 pins eliminates external RC networks and reduces layout area by 40%. | Use Scenario: Solar- or thermal-harvested node transmitting soil moisture readings hourly via LoRaWAN gateway. IC Role / Device Role / Timing Role: Power-gated system manager waking on timer interrupt, acquiring ADC data, and triggering RF module. Use Value: 0.1 µA off-mode (RAM retention) ensures state persistence between harvest events; Spy-Bi-Wire enables post-deployment firmware tuning. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430G2453IPW28 | 4 kB flash, 512 B RAM, same peripherals and pinout - double memory capacity with identical power profile. | Required for larger firmware (e.g., BLE stack + sensor fusion) where MSP430G2253IPW28's 2 kB flash is insufficient. | Select when firmware growth exceeds 2 kB or RAM buffering needs exceed 256 B - no PCB change needed. |
| MSP430G2553IPW28 | 16 kB flash, 512 B RAM, same peripherals and pinout - quadruple flash, higher ADC throughput (same 200 ksps), identical low-power behavior. | Suitable for complex edge-processing tasks (FFT, filtering) or dual-protocol gateways requiring large code space. | Choose for future-proofing or when migrating from G2253 to accommodate feature expansion without layout revision. |
Compared with MSP430G2453IPW28 and MSP430G2553IPW28, the MSP430G2253IPW28 delivers optimal cost/performance for minimal-footprint sensor nodes where 2 kB flash and 256 B RAM suffice - preserving design simplicity while meeting ultra-low-power requirements.
Availability
MSP430G2253IPW28 is available at Aetrix Electronics and suitable for smart sensor nodes, portable data loggers, capacitive-touch interfaces, and energy-harvesting IoT endpoints requiring stable component supply and long-term manufacturability.
Supply support for MSP430G2253IPW28 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 energy efficiency and system integration.
The MSP430G2xx family targets ultra-low-power embedded applications - designed specifically for battery-operated sensor systems, portable instrumentation, and energy-constrained IoT endpoints where sub-µA sleep current and fast wake-up are mandatory.
FAQ
What is the maximum operating frequency of the MSP430G2253IPW28?
The MSP430G2253IPW28 supports a digitally controlled oscillator (DCO) calibrated for frequencies up to 16 MHz, with factory-trimmed settings stored in information memory segment A. Its instruction cycle time is 62.5 ns at 16 MHz, enabling deterministic real-time execution for time-critical sensor sampling and control loops within the MSP430G2253IPW28.
Does the MSP430G2253IPW28 include hardware UART support?
Yes, the MSP430G2253IPW28 includes USCI_A0, which provides full hardware UART functionality with auto-baudrate detection, LIN support, IrDA encoding/decoding, and synchronous SPI - all accessible via P1.1 (UCA0RXD) and P1.2 (UCA0TXD) pins. This eliminates bit-banged UART overhead and ensures reliable communication in the MSP430G2253IPW28.
How many ADC input channels does the MSP430G2253IPW28 support?
The MSP430G2253IPW28 integrates a 10-bit ADC10 module with 8 analog input channels (A0–A7), selectable via the ADC10CTL1 register. All channels are accessible on P1.x pins (e.g., A0 on P1.0, A3 on P1.3), and autoscan mode enables sequential conversion without CPU intervention - a core capability of the MSP430G2253IPW28.
Can the MSP430G2253IPW28 be programmed in-system without a JTAG emulator?
Yes, the MSP430G2253IPW28 includes an on-chip bootstrap loader (BSL) accessible via UART using P1.1 (TX) and P1.5 (RX). With a valid password, users can erase, program, and verify flash memory in-system - enabling field firmware updates without JTAG hardware, a key feature of the MSP430G2253IPW28.
What low-power modes are available on the MSP430G2253IPW28?
The MSP430G2253IPW28 offers five software-selectable low-power modes: LPM0–LPM4. LPM3 draws 0.2 µA (ACLK active), LPM4 draws 0.1 µA (all clocks off, RAM retained), and wake-up from standby occurs in <1 µs. These modes are central to the MSP430G2253IPW28's ultra-low-power architecture for extended battery life.
MSP430G2253IPW28 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 28-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, IrDA, LINbus, SCI, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, DMA, POR, PWM, WDT
- Number of I/O:
- 24
- 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:
MSP430G2253IPW28 FAQ
1.How can I place an order for MSP430G2253IPW28 through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430G2253IPW28 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 MSP430G2253IPW28 reliable?
The price and inventory of MSP430G2253IPW28 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430G2253IPW28 is usually 5 days.
3.What payment methods are accepted for MSP430G2253IPW28?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430G2253IPW28 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430G2253IPW28?
MSP430G2253IPW28 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430G2253IPW28 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 MSP430G2253IPW28?
For technical support, including MSP430G2253IPW28 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430G2253IPW28 requirements.
6.How does Aetrix verify that MSP430G2253IPW28 is sourced from the original manufacturer or authorized distributors?
All MSP430G2253IPW28 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 MSP430G2253IPW28 meets industry standards.
7.What is the process for return or replacement of MSP430G2253IPW28?
All MSP430G2253IPW28 units undergo pre-shipment inspection (PSI). If there is an issue with MSP430G2253IPW28, 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 MSP430G2253IPW28 part is unused and in its original packaging.
Return procedure for MSP430G2253IPW28:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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