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Texas Instruments MSP430G2553IN20
- Part No.:
- MSP430G2553IN20
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 20-DIP (0.300", 7.62mm)
- Datasheet:
-
MSP430G2553IN20.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 20DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,095
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Product details
Overview
MSP430G2553IN20 from Texas Instruments is a 16-bit ultra-low-power mixed-signal microcontroller in 20-pin PDIP package, featuring 16 KB flash, 512 B RAM, 10-bit 200-ksps ADC with internal reference, two 16-bit Timer_A modules, USCI_A0 (UART/LIN/IrDA/SPI) and USCI_B0 (SPI/I²C), and capacitive-touch-enabled I/O. It targets battery-powered sensor nodes and portable measurement systems.
For engineers reviewing the MSP430G2553IN20 datasheet, MSP430G2553IN20 pinout, MSP430G2553IN20 application, or MSP430G2553IN20 equivalent, key selection criteria include its 20-pin PDIP footprint, integrated ADC10 channel count, Spy-Bi-Wire debug interface, brownout detection, and five low-power modes with sub-1-µs wake-up.
Technical Context
The MSP430G2553IN20 implements a 16-bit RISC CPU with 62.5-ns instruction cycle time, digitally controlled oscillator (DCO) calibrated to 1 MHz/8 MHz/12 MHz/16 MHz, and dual USCI modules supporting asynchronous UART with auto-baudrate detection and synchronous SPI/I²C. Its clock system integrates ACLK (32-kHz crystal or LF oscillator), SMCLK, and MCLK.
It includes an 8-channel analog comparator (Comp_A+) with rail-to-rail input, programmable hysteresis, and slope A/D conversion capability; Timer_A modules support capture/compare with up to three registers each; and port P1/P2 provide interrupt-capable I/O with individually configurable pullup/pulldown resistors and capacitive-touch oscillator enable.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 16 registers and constant generators for optimized code efficiency |
| Flash / RAM | 16 KB flash memory (512-byte segments) and 512 B RAM for firmware storage and runtime variables |
| ADC10 | 10-bit SAR converter with 200-ksps sampling rate, internal reference, sample-and-hold, and autoscan across 8 channels |
| Power Modes | Active mode (230 µA @ 1 MHz, 2.2 V), LPM4 (0.1 µA RAM retention), and five software-selectable low-power modes |
| USCI Peripherals | USCI_A0 supports UART (LIN-compatible), IrDA, SPI; USCI_B0 supports SPI and I²C master/slave operation |
| Debug Interface | Spy-Bi-Wire 2-wire interface (RST/NMI/SBWTDIO and TEST/SBWTCK pins) for programming and emulation |
| Supply Range | 1.8 V to 3.6 V operation enables direct use with single Li-ion, AA/AAA, or coin-cell batteries |
Pinout & Package
Package: 20-pin Plastic Dual In-line Package (PDIP), 0.300-inch body width, through-hole mounting compatible with prototyping and legacy PCB assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 – DVCC | Digital supply voltage | Primary 1.8–3.6 V power input for digital core and I/O banks |
| 2 – P1.0/TA0CLK/ACLK/A0/CA0 | Multi-function I/O | Configurable as timer clock input, ACLK output, ADC channel 0, or comparator input CA0 |
| 5 – P1.3/ADC10CLK/CAOUT/VREF−/VEREF−/A3/CA3 | Analog peripheral terminal | ADC10 conversion clock output, comparator output, negative reference, and ADC channel 3 input |
| 6 – P1.4/SMCLK/CA4/TCK/VREF+/VEREF+/A4/UCB0STE/UCA0CLK | Multi-function I/O | SMCLK output, JTAG test clock, ADC channel 4, positive reference, and USCI clock/enable control |
| 7 – P1.5/TA0.0/A5/CA5/TMS/UCB0CLK/UCA0STE | Multi-function I/O | Timer compare output, ADC channel 5, JTAG test mode select, and USCI clock/enable |
| 8 – P2.0/TA1.0 | Timer peripheral I/O | Timer1_A capture/compare input/output on CCI0A channel |
| 9 – P2.1/TA1.1 | Timer peripheral I/O | Timer1_A capture/compare input/output on CCI1A channel |
| 10 – P2.2/TA1.1 | Timer peripheral I/O | Timer1_A capture/compare input/output on CCI1B channel |
| 11 – P2.3/TA1.0 | Timer peripheral I/O | Timer1_A capture/compare input/output on CCI0B channel |
| 12 – P2.4/TA1.2 | Timer peripheral I/O | Timer1_A capture/compare input/output on CCI2A channel |
| 13 – P2.5/TA1.2 | Timer peripheral I/O | Timer1_A capture/compare input/output on CCI2B channel |
| 16 – RST/NMI/SBWTDIO | System control | Reset input, non-maskable interrupt, and Spy-Bi-Wire bidirectional data line |
| 17 – TEST/SBWTCK | Debug interface | JTAG test select and Spy-Bi-Wire clock input for programming and emulation |
| 18 – XOUT/P2.7 | Oscillator terminal | Crystal oscillator output or general-purpose I/O when crystal not used |
| 19 – XIN/P2.6/TA0.1 | Oscillator terminal | Crystal oscillator input or Timer0_A compare output |
| 20 – DVSS | Digital ground | Reference return path for digital supply and I/O circuits |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.1 µA in LPM4 with RAM retention enables multi-year battery life in remote sensors |
| Integrated 10-bit ADC | 200-ksps sampling with internal reference and autoscan eliminates external ADC and reference ICs |
| Capacitive-touch I/O | Up to 24 pins support touch sensing via built-in oscillator-no external components required |
| Two independent 16-bit timers | Each with three capture/compare registers enables simultaneous PWM generation, input capture, and interval timing |
| Universal Serial Communication | Dual USCI modules support UART, SPI, and I²C on shared pins-reduces pin count and simplifies protocol switching |
| On-chip emulation | Spy-Bi-Wire interface allows full debugging and flash programming with only two pins and no external voltage |
Applications
| Smart Sensor Node | Portable Data Logger |
|---|---|
Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and light using analog sensors. IC Role / Device Role / Timing Role: Central controller executing sensor acquisition, ADC conversion, data processing, and UART transmission to gateway. Use Value: Integrated ADC10, low-power timers, and 0.1 µA LPM4 extend operational life beyond 5 years on CR2032 coin cell. | Use Scenario: Handheld device recording voltage, current, and acceleration over time for field diagnostics. IC Role / Device Role / Timing Role: Real-time data acquisition unit with timestamping via ACLK-driven Timer_A and flash-based logging. Use Value: 16 KB flash stores >10,000 samples; 230 µA active current at 1 MHz enables responsive UI while preserving battery. |
| Low-Cost Motor Controller | Industrial Panel Interface |
Use Scenario: Fan speed regulator using PWM output and thermal feedback loop. IC Role / Device Role / Timing Role: Closed-loop controller generating precise PWM via Timer_A compare outputs and reading thermistor via ADC10. Use Value: Two independent Timer_A modules allow concurrent PWM generation and sensor sampling without CPU overhead. | Use Scenario: Front-panel keypad and LED display for HVAC or PLC subsystems. IC Role / Device Role / Timing Role: Human interface processor managing capacitive-touch keys, LED drivers, and RS-232 communication. Use Value: 24 capacitive-touch enabled I/O pins eliminate mechanical switches and reduce BOM cost by $0.35 per unit. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430G2453IN20 | Same 20-pin PDIP package, but 8 KB flash, 512 B RAM, no ADC10 module | Lacks integrated 10-bit ADC-requires external ADC for analog sensing | Select when analog acquisition is unnecessary and cost reduction is critical |
| MSP430G2553IPW20 | Identical core specs and peripherals, but in 20-pin TSSOP package (4.4 mm × 6.5 mm) | Smaller footprint and surface-mount compatibility-unsuitable for through-hole prototyping | Select for space-constrained PCBs where PDIP socketing is not required |
Compared with MSP430G2453IN20, the MSP430G2553IN20 adds essential ADC10 functionality for analog signal digitization; compared with MSP430G2553IPW20, it retains the same electrical performance while enabling breadboard evaluation and legacy manufacturing.
Availability
MSP430G2553IN20 is available at Aetrix Electronics and suitable for smart sensor nodes, portable data loggers, low-cost motor controllers, and industrial panel interfaces requiring stable component supply across design, prototype, and production phases.
Supply support for MSP430G2553IN20 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 consumer markets.
The MSP430G2xx family delivers ultra-low-power mixed-signal microcontrollers optimized for battery-operated sensing, measurement, and control applications-designed to maximize energy efficiency without sacrificing performance.
FAQ
What is the maximum operating frequency of the MSP430G2553IN20?
The MSP430G2553IN20 features a digitally controlled oscillator (DCO) calibrated to operate at up to 16 MHz. This maximum frequency is achievable under specified conditions (VCC ≥ 2.2 V, TA = 25°C) and is supported by factory-stored calibration data in information memory segment A. The DCO can be configured via RSEL and DCO bits to select among 16 frequency ranges, with modulation enabling fine resolution.
Does the MSP430G2553IN20 support hardware UART with auto-baudrate detection?
Yes, the MSP430G2553IN20 supports enhanced UART functionality within its USCI_A0 module, including auto-baudrate detection for LIN-compliant communication. This feature allows the MSP430G2553IN20 to automatically synchronize to incoming serial frames without prior knowledge of the transmitter's baud rate, reducing host-side configuration complexity in sensor networks and diagnostic tools.
How many ADC channels does the MSP430G2553IN20 support, and what is its sampling rate?
The MSP430G2553IN20 supports eight analog input channels (A0–A7) via its integrated 10-bit ADC10 module, with a maximum sampling rate of 200 ksps. It includes internal voltage reference (1.5 V or 2.5 V), sample-and-hold circuitry, and autoscan mode-enabling continuous conversion across multiple channels without CPU intervention.
Can the MSP430G2553IN20 be programmed in-circuit using the PDIP package pins?
Yes, the MSP430G2553IN20 supports in-system programming via its Spy-Bi-Wire interface using only two pins: RST/NMI/SBWTDIO (pin 16) and TEST/SBWTCK (pin 17). No external programming voltage is required-the MSP430G2553IN20 uses the DVCC supply for flash programming, enabling field updates and eliminating dedicated programming fixtures.
What low-power modes are available on the MSP430G2553IN20, and what is the lowest current draw?
The MSP430G2553IN20 offers five software-selectable low-power modes (LPM0–LPM4). In LPM4 (RAM retention only), it draws just 0.1 µA at 2.2 V and 25°C. Wake-up from LPM4 to active mode occurs in less than 1 µs via interrupt, making it ideal for intermittent-sensing applications such as wireless sensor nodes powered by coin cells.
MSP430G2553IN20 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 20-DIP (0.300", 7.62mm)
- Series:
- MSP430G2xx
- Packaging:
- Tube
- 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:
- 16KB (16K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 512 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:
- Through Hole
- Supplier Device Package:
MSP430G2553IN20 FAQ
1.How can I place an order for MSP430G2553IN20 through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430G2553IN20 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 MSP430G2553IN20 reliable?
The price and inventory of MSP430G2553IN20 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430G2553IN20 is usually 5 days.
3.What payment methods are accepted for MSP430G2553IN20?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430G2553IN20 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430G2553IN20?
MSP430G2553IN20 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430G2553IN20 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 MSP430G2553IN20?
For technical support, including MSP430G2553IN20 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430G2553IN20 requirements.
6.How does Aetrix verify that MSP430G2553IN20 is sourced from the original manufacturer or authorized distributors?
All MSP430G2553IN20 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 MSP430G2553IN20 meets industry standards.
7.What is the process for return or replacement of MSP430G2553IN20?
All MSP430G2553IN20 units undergo pre-shipment inspection (PSI). If there is an issue with MSP430G2553IN20, 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 MSP430G2553IN20 part is unused and in its original packaging.
Return procedure for MSP430G2553IN20:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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