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Texas Instruments MSP430G2553IPW20
- Part No.:
- MSP430G2553IPW20
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MSP430G2553IPW20.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 20TSSOP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MSP430G2553IPW20 from Texas Instruments is a 16-bit ultra-low-power mixed-signal microcontroller featuring 16 KB flash, 512 B RAM, 10-bit 200-ksps ADC with internal reference, two 16-bit Timer_A modules with three capture/compare registers each, and USCI_A0 (UART/LIN/IrDA/SPI) + USCI_B0 (SPI/I²C). It operates from 1.8 V to 3.6 V and targets battery-powered sensor nodes and portable instrumentation.
For engineers reviewing the MSP430G2553IPW20 datasheet, MSP430G2553IPW20 pinout, MSP430G2553IPW20 application, or MSP430G2553IPW20 equivalent, key selection criteria include its 20-pin TSSOP package, integrated ADC10 with autoscan, Spy-Bi-Wire debug interface, capacitive-touch I/O capability, and five low-power modes enabling sub-1 µs wake-up from standby.
Technical Context
The MSP430G2553IPW20 implements a 16-bit RISC CPU with 62.5-ns instruction cycle time, digitally controlled oscillator (DCO) calibrated up to 16 MHz, and dual-clock system (ACLK, MCLK, SMCLK). Its USCI_A0 supports UART with auto-baudrate detection for LIN, IrDA encoding/decoding, and synchronous SPI; USCI_B0 supports SPI and I²C master/slave operation.
It integrates an 8-channel analog comparator (Comp_A+) with programmable hysteresis and slope A/D conversion, brownout detector, on-chip BSL for UART-based flash programming, and hardware multiplier (optional in ROM). Port P1 and P2 support individually configurable pullup/pulldown resistors and capacitive-touch sensing via pin oscillators.
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 control. |
| Flash / RAM | 16 KB flash memory with segment erase and 512 B RAM; supports in-system programming and data retention during LPM4. |
| ADC10 | 10-bit, 200-ksps SAR ADC with internal reference, sample-and-hold, autoscan, and 8 input channels; eliminates external reference and reduces BOM cost. |
| Power Modes | Five software-selectable low-power modes: active (230 µA @ 1 MHz, 2.2 V), LPM0–LPM3, and LPM4 (0.1 µA RAM retention); extends battery life in intermittent-sensing applications. |
| USCI Peripherals | USCI_A0 (UART/LIN/IrDA/SPI) + USCI_B0 (SPI/I²C); enables flexible communication with sensors, displays, and host controllers without external transceivers. |
| Debug Interface | Spy-Bi-Wire (2-wire JTAG) with on-chip emulation logic; allows full-speed debugging and flash programming using single-pin test access. |
| Operating Voltage | 1.8 V to 3.6 V supply range; compatible with coin-cell (e.g., CR2032) and single Li-ion battery systems without voltage 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 power supply | Connects to 1.8–3.6 V digital rail; requires local 100 nF decoupling capacitor. |
| 2 - P1.0/TA0CLK/ACLK/A0/CA0 | Multi-function I/O | Primary ADC input A0, timer clock source, ACLK output, or comparator input; configurable per application need. |
| 5 - P1.3/ADC10CLK/CAOUT/VREF−/VEREF−/A3/CA3 | Analog reference & ADC channel | Provides ADC negative reference (VREF−), comparator output (CAOUT), and analog input A3; enables ratiometric measurements. |
| 6 - P1.4/SMCLK/UCB0STE/UCA0CLK/A4/VREF+/VEREF+/CA4/TCK | System clock & communication control | Outputs SMCLK, controls USCI slave enable and clock, supplies ADC positive reference (VREF+), and serves as JTAG test clock. |
| 16 - RST/NMI/SBWTDIO | Reset & debug I/O | Active-low reset input, non-maskable interrupt, and bidirectional Spy-Bi-Wire data line; shared pin reduces debug footprint. |
| 17 - TEST/SBWTCK | Debug clock | JTAG test mode select and Spy-Bi-Wire clock input; enables 2-pin debug interface without dedicated JTAG header. |
| 19 - XIN/P2.6/TA0.1 | Clock input & timer function | Accepts 32.768 kHz crystal for ACLK or external digital clock; also functions as Timer0_A compare output TA0.1. |
| 20 - DVSS | Digital ground | Reference return for digital circuitry; must be connected to system ground plane with low-inductance path. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | Standby current of 0.5 µA and off-mode (RAM retention) at 0.1 µA enables multi-year battery life in wireless sensor endpoints. |
| Integrated 10-bit ADC | 200-ksps sampling with internal reference, autoscan, and 8-channel input eliminates external ADC and reference ICs in analog front-end designs. |
| Capacitive-touch I/O | Up to 24 pins support capacitive-touch sensing via built-in pin oscillators; enables touch buttons, sliders, and proximity detection without external ICs. |
| Universal Serial Communication | Dual USCI modules support UART (with LIN auto-baud), IrDA, SPI, and I²C - all configurable in firmware for flexible peripheral interfacing. |
| On-chip emulation & BSL | Spy-Bi-Wire debug interface and UART-based bootstrap loader allow field firmware updates and full-speed debugging with minimal PCB footprint. |
Applications
| Smart Sensor Node | Portable Medical Monitor |
|---|---|
Use Scenario: Battery-powered temperature/humidity sensor transmitting data via UART to gateway. IC Role / Device Role / Timing Role: Primary controller executing sensor readout, ADC conversion, data formatting, and low-power UART transmission. Use Value: 0.1 µA LPM4 current and sub-1 µs wake-up minimize energy per measurement cycle, extending CR2032 battery life beyond 5 years. | Use Scenario: Handheld pulse oximeter acquiring analog photodiode signals and driving OLED display. IC Role / Device Role / Timing Role: Analog front-end processor with ADC10, comparator for signal thresholding, and USCI_B0 for I²C OLED interface. Use Value: Integrated VREF+/VREF− and 8-channel autoscan reduce external components, while 1.8 V operation supports single-cell alkaline power. |
| Industrial Control Panel | Energy Harvesting IoT Endpoint |
Use Scenario: DIN-rail mounted HMI with tactile buttons, LED indicators, and RS-485 backhaul. IC Role / Device Role / Timing Role: Local UI controller managing capacitive-touch inputs, LED PWM outputs, and UART-to-RS485 bridge via USCI_A0. Use Value: P1/P2 capacitive-touch capability enables sealed front-panel design; USCI_A0 UART mode supports isolated RS-485 transceiver interface. | Use Scenario: Solar-powered environmental monitor harvesting microwatts and waking only on event. IC Role / Device Role / Timing Role: Event-driven system controller using comparator slope A/D to detect threshold crossings and trigger wake-up. Use Value: Comparator_A+ with slope A/D conversion consumes <1 µA during monitoring, enabling reliable wake-up from ambient light or vibration events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430G2453IPW20 | 8 KB flash, 512 B RAM, no ADC10 module; otherwise identical peripherals and pinout. | Not suitable for applications requiring analog digitization; appropriate for digital-only control or GPIO-intensive tasks. | Select when ADC functionality is unnecessary and cost reduction is prioritized over analog capability. |
| MSP430FR2355IPW20 | Ferroelectric RAM (6.25 KB FRAM), 2 KB RAM, enhanced USCI, 12-bit ADC, but requires 1.8–3.6 V and has different register mapping. | Superior write endurance and lower active power, but firmware migration required due to FRAM architecture and peripheral differences. | Choose for high-data-logging throughput or frequent nonvolatile writes where FRAM endurance outweighs requalification effort. |
Compared with MSP430G2453IPW20, the MSP430G2553IPW20 adds essential ADC10 capability for analog sensing; versus MSP430FR2355IPW20, it offers proven flash reliability and direct code compatibility within the MSP430G2xx family, simplifying legacy design upgrades.
Availability
MSP430G2553IPW20 is available at Aetrix Electronics and suitable for smart sensor nodes, portable medical monitors, industrial control panels, and energy harvesting IoT endpoints requiring stable component supply and long-term manufacturability.
Supply support for MSP430G2553IPW20 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 MSP430G2xx product line was designed specifically for ultra-low-power portable measurement and sensing applications, combining optimized mixed-signal peripherals with aggressive power gating and fast wake-up response.
FAQ
What is the maximum operating frequency of the MSP430G2553IPW20?
The MSP430G2553IPW20 features an internal digitally controlled oscillator (DCO) calibrated up to 16 MHz, supporting CPU execution at 16 MHz with 62.5-ns instruction cycle time. The DCO frequency is factory-trimmed and stored in information memory segment A for consistent performance across voltage and temperature.
Does the MSP430G2553IPW20 support capacitive-touch sensing?
Yes, the MSP430G2553IPW20 supports capacitive-touch sensing on up to 24 I/O pins using its built-in pin oscillators. This capability is implemented in hardware and requires no external components, enabling robust touch-button and slider interfaces in battery-constrained designs.
How many analog input channels does the ADC10 module in the MSP430G2553IPW20 support?
The ADC10 module in the MSP430G2553IPW20 supports eight analog input channels (A0–A7), selectable via the ADC10CTL1 register. All channels are accessible on the 20-pin TSSOP package, with A0–A5 routed to P1.x pins and A6–A7 to P1.6 and P1.7 respectively.
What debug interface does the MSP430G2553IPW20 use?
The MSP430G2553IPW20 uses the Spy-Bi-Wire (SBW) interface - a 2-wire subset of JTAG - for on-chip emulation, flash programming, and real-time debugging. It requires only two pins (RST/NMI/SBWTDIO and TEST/SBWTCK) and is supported by TI's MSP-FET and open-source tools like naken430loader.
Is the MSP430G2553IPW20 pin-compatible with other devices in the MSP430G2xx family?
Yes, the MSP430G2553IPW20 shares identical pinout and electrical characteristics with other 20-pin TSSOP variants in the G2x53 family (e.g., MSP430G2453IPW20, MSP430G2353IPW20), enabling drop-in replacement where ADC10 is not required or where flash size can be reduced.
MSP430G2553IPW20 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:
- 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:
- Surface Mount
- Supplier Device Package:
MSP430G2553IPW20 FAQ
1.How can I place an order for MSP430G2553IPW20 through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430G2553IPW20 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 MSP430G2553IPW20 reliable?
The price and inventory of MSP430G2553IPW20 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430G2553IPW20 is usually 5 days.
3.What payment methods are accepted for MSP430G2553IPW20?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430G2553IPW20 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430G2553IPW20?
MSP430G2553IPW20 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430G2553IPW20 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 MSP430G2553IPW20?
For technical support, including MSP430G2553IPW20 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430G2553IPW20 requirements.
6.How does Aetrix verify that MSP430G2553IPW20 is sourced from the original manufacturer or authorized distributors?
All MSP430G2553IPW20 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 MSP430G2553IPW20 meets industry standards.
7.What is the process for return or replacement of MSP430G2553IPW20?
All MSP430G2553IPW20 units undergo pre-shipment inspection (PSI). If there is an issue with MSP430G2553IPW20, 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 MSP430G2553IPW20 part is unused and in its original packaging.
Return procedure for MSP430G2553IPW20:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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