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Texas Instruments MSP430G2453IPW20R
- Part No.:
- MSP430G2453IPW20R
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MSP430G2453IPW20R.pdf
- Description:
- IC MCU 16BIT 8KB FLASH 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,396
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Product details
Overview
MSP430G2453IPW20R from Texas Instruments is a 16-bit ultra-low-power mixed-signal microcontroller featuring 16 KB flash, 512 B RAM, 10-bit ADC with 8-channel autoscan, two 16-bit Timer_A modules, USCI_A0 (UART/LIN/IrDA/SPI) and USCI_B0 (SPI/I²C), and capacitive-touch I/O capability. It operates from 1.8 V to 3.6 V and targets battery-powered sensor nodes and portable measurement systems.
For engineers reviewing the MSP430G2453IPW20R datasheet, MSP430G2453IPW20R pinout, MSP430G2453IPW20R application, or MSP430G2453IPW20R equivalent, key selection criteria include its 20-pin TSSOP package, integrated ADC10, Spy-Bi-Wire debug interface, five low-power modes, and verified compatibility with MSP430x2xx family development tools and firmware libraries.
Technical Context
The MSP430G2453IPW20R implements a 16-bit RISC CPU with 62.5-ns instruction cycle time, digitally controlled oscillator (DCO) calibrated for 1 MHz/8 MHz/12 MHz/16 MHz operation, and dual USCI modules supporting asynchronous UART, synchronous SPI, and I²C protocols. Its ADC10 includes internal reference, sample-and-hold, and autoscan across up to eight analog inputs.
Power management is centered on six operating modes - Active, LPM0–LPM4 - with standby current as low as 0.5 µA and off-mode (RAM retention) at 0.1 µA. Wake-up from LPM4 to active mode occurs in under 1 µs via the DCO, enabling rapid response in event-driven sensing applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 16 registers and constant generators; enables efficient C code execution and deterministic real-time control. |
| Flash / RAM | 16 KB flash memory with segment erase and 512 B RAM; supports in-system programming and data logging without external storage. |
| ADC10 Resolution | 10-bit SAR ADC with 200-ksps sampling rate, internal reference, and autoscan; eliminates need for external ADC in basic sensor signal acquisition. |
| USCI Peripherals | USCI_A0 (UART/LIN/IrDA/SPI) + USCI_B0 (SPI/I²C); provides dual serial interfaces for host communication and sensor bus connectivity. |
| Low-Power Modes | Five software-selectable low-power modes (LPM0–LPM4); allows sub-µA sleep current while retaining RAM and wake-up capability via GPIO/timer/USCI. |
| Supply Voltage | 1.8 V to 3.6 V operation; compatible with single-cell Li-ion, Li-polymer, and two-cell alkaline battery systems without regulation. |
| Debug Interface | Spy-Bi-Wire (2-wire JTAG) with SBWTDIO/SBWTCK pins; enables full-speed debugging and flash programming using TI MSP-FET or LaunchPad tools. |
Pinout & Package
Package: 20-pin TSSOP (PW20), 0.65 mm pitch, body size 6.5 mm × 4.4 mm, RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 – DVCC | Digital supply voltage input | Primary 1.8–3.6 V power rail for CPU and digital peripherals; requires local 100 nF decoupling. |
| 2 – P1.0/TA0CLK/ACLK/A0/CA0 | Multi-function I/O pin | Configurable as timer clock input, ACLK output, ADC channel 0, or comparator input; supports capacitive touch sensing. |
| 5 – P1.3/ADC10CLK/CAOUT/VREF-/VEREF-/A3/CA3 | Analog subsystem terminal | ADC10 conversion clock output, negative reference input, and analog input A3; shared with comparator output and CA3. |
| 6 – P1.4/SMCLK/CA4/TCK/VREF+/VEREF+/A4/UCB0STE/UCA0CLK | System clock & analog I/O | SMCLK output, JTAG test clock, ADC positive reference, analog input A4, 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; enables single-pin debug access. |
| 17 – TEST/SBWTCK | Debug clock input | JTAG test mode select during programming; functions as Spy-Bi-Wire clock for debug and flash programming. |
| 19 – XIN/P2.6/TA0.1 | Clock source input | Crystal oscillator input for 32.768 kHz watch crystal or external digital clock; also serves as Timer0_A compare output. |
| 20 – DVSS | Digital ground | Reference return path for digital circuitry; must be connected to system ground plane with low-inductance routing. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low standby current | 0.5 µA in LPM3 mode with ACLK active - extends battery life in periodic-sampling sensor nodes beyond 10 years on CR2032. |
| Integrated 10-bit ADC | 8-channel autoscan with internal 1.5 V/2.5 V reference and sample-and-hold - enables direct connection of thermistors, potentiometers, and bridge sensors. |
| Capacitive-touch I/O | Up to 24 pins support capacitive sensing without external components - reduces BOM cost and PCB area in human-interface designs. |
| Universal Serial Communication | Dual USCI modules with hardware UART, LIN, IrDA, SPI, and I²C - simplifies integration with BLE modules, displays, and environmental sensors. |
| On-chip emulation logic | Spy-Bi-Wire interface with 2-pin debug - eliminates need for dedicated JTAG header and supports field firmware updates. |
Applications
| Smart Sensor Node | Portable Medical Monitor |
|---|---|
Use Scenario: Battery-powered temperature/humidity node transmitting data over UART to gateway. IC Role / Device Role / Timing Role: Main controller executing sensor readout, ADC conversion, data formatting, and UART transmission; uses ACLK from 32.768 kHz crystal for precise timing. Use Value: 0.1 µA off-mode current preserves battery charge during idle periods; integrated ADC and USCI eliminate four discrete ICs. | Use Scenario: Wearable pulse oximeter with analog front-end and Bluetooth LE module interface. IC Role / Device Role / Timing Role: Signal conditioner and protocol bridge - reads analog photodiode outputs via ADC10, applies gain correction, and forwards data via USCI_A0 UART to BLE SoC. Use Value: 10-bit resolution and 200-ksps sampling capture fast pulse waveforms; 1.8 V minimum supply enables direct coin-cell operation. |
| Industrial Control Panel | Energy Harvesting IoT Endpoint |
Use Scenario: Low-cost HMI with capacitive buttons, LED indicators, and RS-485 backhaul. IC Role / Device Role / Timing Role: Human interface processor managing touch detection, LED PWM dimming via Timer_A, and RS-485 transceiver control via GPIO/USCI. Use Value: 24-capacitive-touch I/O pins drive full button matrix without external controller; USCI_B0 handles half-duplex RS-485 timing. | Use Scenario: Solar-powered soil moisture sensor reporting daily via LoRaWAN gateway. IC Role / Device Role / Timing Role: Energy-aware data concentrator - wakes on timer interrupt, reads ADC10, processes data, and triggers LoRa transceiver only when threshold exceeded. Use Value: Sub-µA LPM4 current matches typical energy harvesting output; fast DCO wake-up (<1 µs) minimizes active time and energy use. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430G2553IPW20 | 16 KB flash, 512 B RAM, identical pinout and peripherals, but adds BSL bootloader and enhanced USCI features. | Supports UART-based firmware updates in-field; required where remote reprogramming is mandatory. | Select MSP430G2553IPW20 if BSL functionality or additional USCI configuration flexibility is needed; otherwise MSP430G2453IPW20 offers identical core functionality at lower cost. |
| MSP430FR2433IPW20 | Ferroelectric RAM (FRAM) instead of flash; 16 KB FRAM, 2 KB RAM, same 20-pin TSSOP, but higher write endurance and faster write speed. | Better suited for high-frequency data logging or frequent parameter updates due to FRAM's 10¹⁴ write cycles and zero write latency. | Choose MSP430FR2433IPW20 for applications requiring frequent nonvolatile writes; MSP430G2453IPW20 remains optimal for cost-sensitive, fixed-firmware sensor nodes. |
Compared with MSP430G2553IPW20, the MSP430G2453IPW20 omits BSL but retains full debug and programming capability via Spy-Bi-Wire; versus MSP430FR2433IPW20, it trades FRAM endurance for lower unit cost and proven flash reliability in static firmware deployments.
Availability
MSP430G2453IPW20R 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, long-term manufacturability, and TI-qualified production lots.
Supply support for MSP430G2453IPW20R 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 was designed specifically for ultra-low-power, cost-sensitive embedded applications - emphasizing extended battery life, integrated analog peripherals, and minimal external component count in compact form factors.
FAQ
What is the maximum operating frequency of the MSP430G2453IPW20R?
The MSP430G2453IPW20R supports a maximum MCLK frequency of 16 MHz, achieved using the factory-calibrated digitally controlled oscillator (DCO). This is confirmed in the SLAS735J datasheet Section 4.1, where DCO calibration values for 16 MHz operation are stored in information memory segment A. The device maintains full functionality - including ADC10 sampling and USCI baud rate generation - at this clock rate.
Does the MSP430G2453IPW20R include an integrated ADC?
Yes, the MSP430G2453IPW20R includes 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 is explicitly stated in the device description and Table 1 of the SLAS735J datasheet, and is a distinguishing feature of the G2x53 series versus the G2x13 series.
What debug interface does the MSP430G2453IPW20R support?
The MSP430G2453IPW20R supports Spy-Bi-Wire (SBW), a 2-wire variant of JTAG, using pins RST/NMI/SBWTDIO (Pin 16) and TEST/SBWTCK (Pin 17). This interface enables full-speed debugging, flash programming, and real-time register inspection using TI's MSP-FET or compatible LaunchPad debuggers - no external JTAG header required.
Is the MSP430G2453IPW20R pin-compatible with other devices in the MSP430G2xx family?
Yes, the MSP430G2453IPW20R shares identical pinout and electrical characteristics with other 20-pin TSSOP variants in the G2x53 family, including MSP430G2553IPW20 and MSP430G2353IPW20. Pin functions, voltage tolerances, and drive strength are consistent across these parts, enabling drop-in replacement within the same package footprint.
What low-power modes are available on the MSP430G2453IPW20R?
The MSP430G2453IPW20R supports six operating modes: Active mode and five low-power modes (LPM0–LPM4). LPM4 achieves 0.1 µA current with RAM retention and wake-up via external interrupt or timer, while LPM3 draws 0.5 µA with ACLK active - both documented in Section 6.2 of SLAS735J. These modes are software-configurable via the status register (SR).
MSP430G2453IPW20R 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:
- 8KB (8K 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:
MSP430G2453IPW20R FAQ
1.How can I place an order for MSP430G2453IPW20R through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430G2453IPW20R 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 MSP430G2453IPW20R reliable?
The price and inventory of MSP430G2453IPW20R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430G2453IPW20R is usually 5 days.
3.What payment methods are accepted for MSP430G2453IPW20R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430G2453IPW20R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430G2453IPW20R?
MSP430G2453IPW20R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430G2453IPW20R 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 MSP430G2453IPW20R?
For technical support, including MSP430G2453IPW20R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430G2453IPW20R requirements.
6.How does Aetrix verify that MSP430G2453IPW20R is sourced from the original manufacturer or authorized distributors?
All MSP430G2453IPW20R 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 MSP430G2453IPW20R meets industry standards.
7.What is the process for return or replacement of MSP430G2453IPW20R?
All MSP430G2453IPW20R units undergo pre-shipment inspection (PSI). If there is an issue with MSP430G2453IPW20R, 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 MSP430G2453IPW20R part is unused and in its original packaging.
Return procedure for MSP430G2453IPW20R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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