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Texas Instruments MSP430G2253IPW28R
- Part No.:
- MSP430G2253IPW28R
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 28-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MSP430G2253IPW28R.pdf
- Description:
- IC MCU 16BIT 2KB FLASH 28TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,967
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Product details
Overview
MSP430G2253IPW28R from Texas Instruments is a 16-bit ultra-low-power mixed-signal microcontroller featuring 2 kB flash, 256 B RAM, 10-bit ADC with 8-channel autoscan, two 16-bit Timer_A modules (each with three capture/compare registers), USCI_A0 (UART/LIN/IrDA/SPI) and USCI_B0 (SPI/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 instrumentation.
For engineers reviewing the MSP430G2253IPW28R datasheet, MSP430G2253IPW28R pinout, MSP430G2253IPW28R application, or MSP430G2253IPW28R equivalent, key selection criteria include its 28-pin TSSOP package, 2 kB flash/256 B RAM memory configuration, integrated 10-bit ADC with internal reference, dual USCI interfaces, and verified sub-1 µs wake-up from LPM4 standby mode.
Technical Context
The MSP430G2253IPW28R implements a 16-bit RISC CPU with 62.5-ns instruction cycle time, digitally controlled oscillator (DCO) calibrated for 1/8/12/16 MHz operation, and five software-selectable low-power modes (LPM0–LPM4). Its clock system sources ACLK from internal LF oscillator or external 32-kHz crystal, MCLK from DCO, and SMCLK from DCO or ACLK.
Peripherals include two independent 16-bit Timer_A modules (TA0 and TA1), each with three capture/compare registers and multiple clock sources; USCI_A0 supporting UART with auto-baud detection and LIN protocol; USCI_B0 supporting SPI and I²C master/slave; and an 8-channel analog comparator (Comp_A+) usable for slope A/D conversion or signal thresholding.
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 | 2 kB flash program memory and 256 B RAM - sufficient for compact firmware with real-time sensor processing |
| ADC10 | 10-bit, 200-ksps SAR ADC with internal reference, sample-and-hold, and 8-channel autoscan - enables multi-sensor analog acquisition without external mux |
| Power Modes | Five low-power modes including LPM4 (0.1 µA RAM retention) - extends battery life in intermittent-sampling applications |
| USCI Interfaces | USCI_A0 (UART/LIN/IrDA/SPI) + USCI_B0 (SPI/I²C) - supports dual-protocol communication for host connectivity and peripheral control |
| Timer Resources | Two 16-bit Timer_A modules (TA0, TA1), each with three capture/compare registers - provides flexible PWM generation, input capture, and interval timing |
| Supply Range | 1.8 V to 3.6 V operation - compatible with single-cell Li-ion, alkaline, or coin-cell power sources |
Pinout & Package
Package: 28-pin TSSOP (PW28), 0.65 mm pitch, body size 9.7 × 4.4 mm, exposed pad not present.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, DVCC | Digital supply voltage | Primary 1.8–3.6 V digital power rail; 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 clock routing and analog sensing |
| 5, P1.3/ADC10CLK/CAOUT/VREF-/VEREF-/A3/CA3 | Analog subsystem terminal | Provides ADC conversion clock output, comparator output, negative reference, and ADC channel 3 - supports self-timed conversions and reference sharing |
| 14, P1.6/TA0.1/CA6/TDI/TCLK/UCB0SOMI/UCB0SCL/A6 | Shared peripheral pin | Supports Timer_A compare, comparator input, JTAG test clock, SPI slave-out, I²C clock, and ADC channel 6 - enables compact board layout with multiplexed functions |
| 24, RST/NMI/SBWTDIO | Reset and debug interface | Active-low reset input, non-maskable interrupt, and bidirectional Spy-Bi-Wire data line - allows in-system programming and debugging without full JTAG |
| 27, XIN/P2.6/TA0.1 | Clock input | Accepts 32-kHz crystal or external clock source for ACLK; also serves as Timer_A compare output - eliminates need for dedicated clock buffer |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-fast wake-up | Sub-1 µs transition from LPM4 to active mode using DCO - critical for event-driven sensing with minimal latency |
| Integrated analog comparator | 8-channel Comp_A+ with programmable hysteresis and output routing - replaces discrete comparators in threshold-detection circuits |
| Capacitive touch I/O | Up to 24 pins support capacitive touch sensing via built-in oscillator enable bits - enables low-cost human-interface design without external ICs |
| On-chip BSL | UART-based bootloader with password protection - permits field firmware updates without debugger hardware |
| Brownout detector | Programmable threshold with interrupt capability - prevents erratic operation during brownout conditions and enables graceful shutdown |
Applications
| Smart Sensor Node | Portable Medical Monitor |
|---|---|
Use Scenario: Battery-powered environmental sensor collecting temperature, humidity, and light data at 10-second intervals, then transmitting via UART to a gateway. IC Role / Device Role / Timing Role: Central controller executing sensor polling, ADC conversion, data formatting, and UART transmission; uses LPM4 between samples and wakes on timer interrupt. Use Value: 0.1 µA LPM4 current draw extends CR2032 battery life beyond 2 years; integrated ADC and USCI eliminate external signal conditioning and level-shifting ICs. | Use Scenario: Handheld pulse oximeter acquiring analog photodiode signals, performing ratio calculation, and displaying results on segmented LCD. IC Role / Device Role / Timing Role: Signal processor handling synchronized dual-channel ADC sampling, digital filtering, and LCD segment drive via GPIO; uses TA0 for precise LED timing control. Use Value: 10-bit ADC with internal reference ensures stable measurement accuracy across voltage drop; 256 B RAM accommodates filter coefficients and display buffers. |
| Industrial Control Interface | Energy Harvesting IoT Endpoint |
Use Scenario: DIN-rail mounted device monitoring relay status and analog 4–20 mA loop current, communicating over RS-485 via level-shifted UART. IC Role / Device Role / Timing Role: Protocol translator and analog front-end controller; configures USCI_A0 for UART-to-RS485 conversion and reads current via precision resistor and ADC. Use Value: Dual USCI modules allow simultaneous UART and I²C (for local EEPROM) operation; 1.8 V minimum supply supports operation down to depleted backup battery voltage. | Use Scenario: Solar-charged soil moisture sensor waking every 5 minutes to measure capacitance, process result, and transmit via low-power RF module. IC Role / Device Role / Timing Role: Energy-aware coordinator managing ADC acquisition, capacitive touch measurement, and RF module enable sequencing; uses LPM3 with ACLK from 32-kHz crystal. Use Value: Sub-µA standby current minimizes quiescent drain; built-in comparator enables zero-power wake-on-threshold for immediate response to critical events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430G2453IPW28 | 4 kB flash, 512 B RAM, same peripherals and pinout | Supports larger firmware with more complex algorithms or additional protocol stacks | Select when firmware exceeds 2 kB or requires >256 B RAM for buffering or state storage |
| MSP430G2233IPW28 | No ADC10; retains comparator, timers, USCI, 2 kB flash, 256 B RAM | Suitable for purely digital control or comparator-based thresholding without analog digitization | Select when ADC functionality is unnecessary and cost reduction is prioritized over analog capability |
Compared with MSP430G2453IPW28 and MSP430G2233IPW28, the MSP430G2253IPW28R delivers optimal balance of analog integration (10-bit ADC), memory headroom, and ultra-low-power operation for mid-complexity sensor edge nodes - avoiding both under-provisioning and over-specification.
Availability
MSP430G2253IPW28R is available at Aetrix Electronics and suitable for smart sensor nodes, portable medical monitors, industrial control interfaces, and energy harvesting IoT endpoints requiring stable component supply, long-term manufacturability, and TI's qualified automotive-grade process.
Supply support for MSP430G2253IPW28R 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 and embedded processing solutions, with over 90 years of innovation in low-power design and mixed-signal integration.
The MSP430G2xx family was engineered specifically for ultra-low-power embedded sensing and control, emphasizing rapid wake-up, integrated analog peripherals, and energy-efficient execution in battery-constrained environments.
FAQ
What is the maximum operating frequency of the MSP430G2253IPW28R?
The MSP430G2253IPW28R supports a maximum MCLK frequency of 16 MHz, achieved via its digitally controlled oscillator (DCO) with factory-calibrated settings stored in information memory. This allows deterministic real-time performance while maintaining ultra-low power consumption in active mode (230 µA at 1 MHz, 2.2 V).
Does the MSP430G2253IPW28R include a hardware ADC?
Yes, the MSP430G2253IPW28R integrates a 10-bit successive approximation register (SAR) ADC (ADC10) with 8 input channels, internal reference (1.5 V or 2.5 V), sample-and-hold, and autoscan capability. This ADC is confirmed in Table 1 and functional block diagrams specific to the G2x53 series, distinguishing it from G2x13 variants.
How many I/O pins does the MSP430G2253IPW28R support?
The MSP430G2253IPW28R provides 24 programmable I/O pins: Port P1 (8 pins), Port P2 (8 pins), and Port P3 (8 pins), all accessible in the 28-pin TSSOP package. Each pin supports individually configurable pullup/pulldown resistors and interrupt capability on P1 and P2.
Can the MSP430G2253IPW28R be programmed in-circuit without a JTAG emulator?
Yes, the MSP430G2253IPW28R includes a factory-programmed bootstrap loader (BSL) accessible via UART using P1.1 (RX) and P1.5 (TX). This enables in-system programming without JTAG hardware, provided the BSL password is known or the security fuse remains unblown.
What low-power modes are supported by the MSP430G2253IPW28R?
The MSP430G2253IPW28R supports six operating modes: Active Mode (AM) and five low-power modes (LPM0–LPM4). LPM4 achieves 0.1 µA current with RAM retention, while wake-up from LPM4 to AM occurs in less than 1 µs - enabling responsive, energy-conscious designs.
MSP430G2253IPW28R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 28-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:
- 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:
MSP430G2253IPW28R FAQ
1.How can I place an order for MSP430G2253IPW28R through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430G2253IPW28R 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 MSP430G2253IPW28R reliable?
The price and inventory of MSP430G2253IPW28R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430G2253IPW28R is usually 5 days.
3.What payment methods are accepted for MSP430G2253IPW28R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430G2253IPW28R transactions.
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4.How is shipping managed for MSP430G2253IPW28R?
MSP430G2253IPW28R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430G2253IPW28R 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 MSP430G2253IPW28R?
For technical support, including MSP430G2253IPW28R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430G2253IPW28R requirements.
6.How does Aetrix verify that MSP430G2253IPW28R is sourced from the original manufacturer or authorized distributors?
All MSP430G2253IPW28R 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 MSP430G2253IPW28R meets industry standards.
7.What is the process for return or replacement of MSP430G2253IPW28R?
All MSP430G2253IPW28R units undergo pre-shipment inspection (PSI). If there is an issue with MSP430G2253IPW28R, 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 MSP430G2253IPW28R part is unused and in its original packaging.
Return procedure for MSP430G2253IPW28R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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