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Texas Instruments MSP430G2453IPW20
- Part No.:
- MSP430G2453IPW20
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MSP430G2453IPW20.pdf
- Description:
- IC MCU 16BIT 8KB FLASH 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,952
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Product details
Overview
MSP430G2453IPW20 from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller featuring 16 KB flash, 512 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, 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 measurement systems.
For engineers reviewing the MSP430G2453IPW20 datasheet, MSP430G2453IPW20 pinout, MSP430G2453IPW20 application, or MSP430G2453IPW20 equivalent, key selection criteria include its 20-pin TSSOP package, integrated ADC10 channel count (8 inputs), standby current (0.5 µA), wake-up time (<1 µs), and Spy-Bi-Wire debug interface compatibility.
Technical Context
The MSP430G2453IPW20 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, and 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 are memory-mapped and accessible via all CPU instructions. The device integrates a brownout detector, programmable code protection via security fuse, and on-chip emulation logic supporting Spy-Bi-Wire interface-enabling in-system programming without external voltage. Port P1 and P2 support capacitive-touch sensing with individually enabled 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 program memory and 512 B RAM; supports firmware updates and data logging in resource-constrained embedded designs. |
| ADC10 | 10-bit, 200-ksps SAR ADC with internal reference, sample-and-hold, autoscan, and 8-channel input multiplexing; eliminates need for external ADC in analog sensor interfaces. |
| Power Consumption | Active mode: 230 µA at 1 MHz/2.2 V; Standby: 0.5 µA; Off (RAM retention): 0.1 µA; enables multi-year battery life in wireless sensors. |
| Timers | Two 16-bit Timer_A modules (TA0, TA1), each with three capture/compare registers; supports PWM generation, input capture, and interval timing for motor control or signal conditioning. |
| Communication | USCI_A0 (UART/LIN/IrDA/SPI) + USCI_B0 (SPI/I²C); provides dual-protocol flexibility for host connectivity and peripheral expansion without external transceivers. |
| Debug Interface | Spy-Bi-Wire (2-wire JTAG); enables full-speed debugging and flash programming using only two pins, reducing PCB footprint and test access complexity. |
Pinout & Package
Package: 20-pin TSSOP (PW20), 0.65 mm pitch, body size 6.5 mm × 4.4 mm, JEDEC MO-153 compliant. Thermal pad not present. RoHS-compliant, lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 DVCC | Digital supply voltage | Primary digital power rail (1.8–3.6 V); must be decoupled locally with 100 nF ceramic capacitor. |
| 2 P1.0/TA0CLK/ACLK/A0/CA0 | Multi-function I/O | Configurable as timer clock input, ACLK output, ADC input A0, or comparator input CA0-supports flexible clock tree and analog front-end routing. |
| 5 P1.3/ADC10CLK/CAOUT/VREF-/VEREF-/A3/CA3 | Analog subsystem terminal | Provides ADC conversion clock output, comparator output, negative reference, and ADC input A3-enables self-referenced analog measurements. |
| 6 P1.4/SMCLK/UCB0STE/UCA0CLK/A4/VREF+/VEREF+/CA4/TCK | System clock & communication | Delivers SMCLK to peripherals, controls USCI slave timing, supplies UART/I²C clock, and serves as ADC positive reference or 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-enables single-pin debug and robust system initialization. |
| 17 TEST/SBWTCK | Debug clock | JTAG test mode select and Spy-Bi-Wire clock input; required for programming and boundary-scan testing. |
| 19 XIN/P2.6/TA0.1 | Clock input & timer | Accepts external 32-kHz crystal or digital clock source; also functions as Timer0_A compare output-reduces pin count for clocked applications. |
| 20 DVSS | Digital ground | Reference return path 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 sub-1-µs wake-up enable rapid response in energy-harvesting and coin-cell-powered devices. |
| Integrated 10-bit ADC | 200-ksps sampling rate with internal reference and autoscan allows simultaneous monitoring of up to 8 analog sensors without external components. |
| Capacitive-touch I/O | Individual pin oscillator enable on P1.x and P2.x supports low-cost touch-button implementation using only MCU resources-no dedicated touch controller needed. |
| Universal Serial Communication | Dual USCI modules support UART (with LIN auto-baud), IrDA, SPI, and I²C on shared pins-reducing BOM cost and simplifying protocol migration. |
| On-chip emulation | Spy-Bi-Wire interface uses only two pins (RST and TEST) for full debug, flash programming, and trace-minimizing test point requirements on space-constrained PCBs. |
Applications
| Industrial Sensor Node | Portable Medical Monitor |
|---|---|
Use Scenario: Battery-operated temperature/humidity sensor transmitting data over UART to gateway. IC Role / Device Role / Timing Role: Central controller managing ADC sampling, data processing, serial transmission, and ultra-low-power sleep scheduling. Use Value: 0.5 µA standby current extends 2xAA battery life beyond 5 years; integrated ADC10 and USCI_A0 eliminate discrete signal chain components. | Use Scenario: Wearable pulse oximeter acquiring analog photodiode signals and driving LED drivers. IC Role / Device Role / Timing Role: Analog front-end processor performing synchronized ADC sampling, LED timing control via Timer_A PWM, and BLE interface coordination. Use Value: 10-bit ADC with internal reference ensures stable measurement accuracy across voltage and temperature; 16-bit timers provide precise LED pulse width control. |
| Smart Utility Meter | Home Automation Controller |
Use Scenario: Electricity meter measuring voltage/current waveforms and calculating RMS values for billing. IC Role / Device Role / Timing Role: Real-time waveform acquisition engine using ADC10 autoscan and Timer_A capture for zero-crossing detection. Use Value: 200-ksps ADC sampling rate captures 50/60 Hz harmonics up to 10th order; 16-bit timers ensure sub-microsecond timing resolution for accurate energy computation. | Use Scenario: Zigbee-to-IR bridge converting RF commands into infrared remote signals for legacy appliances. IC Role / Device Role / Timing Role: Protocol translator executing UART-to-I²C bridging and generating precise IR carrier frequencies (38 kHz) via Timer_A output. Use Value: USCI_B0 supports I²C peripheral control while Timer_A generates stable 38 kHz carrier-eliminating external oscillator and logic ICs. |
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, same package; adds BSL bootloader and enhanced USCI features including IrDA encoder/decoder. | Required when field firmware updates via UART BSL or IrDA physical layer support are needed. | Select MSP430G2553IPW20 if bootloader capability or IrDA compliance is mandatory; otherwise MSP430G2453IPW20 offers identical core functionality at lower cost. |
| MSP430FR2476TPW20 | Ferroelectric RAM (64 KB FRAM), 4 KB RAM, 24 MHz max CPU speed, integrated 16-channel ADC, but no built-in comparator or LIN support. | Better suited for high-write-cycle data logging or faster real-time control; lacks analog comparator and LIN UART features. | Choose MSP430FR2476TPW20 for applications requiring frequent non-volatile data writes or higher throughput; retain MSP430G2453IPW20 for analog-rich, ultra-low-power sensor nodes with comparator-based threshold detection. |
Compared with MSP430G2553IPW20, the MSP430G2453IPW20 omits BSL and IrDA encoding-reducing code footprint and power in static deployments. Against MSP430FR2476TPW20, it trades FRAM endurance and speed for proven analog integration and lower active current in sub-1-MHz sensing tasks.
Availability
MSP430G2453IPW20 is available at Aetrix Electronics and suitable for industrial sensor nodes, portable medical monitors, smart utility meters, and home automation controllers requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for MSP430G2453IPW20 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 specializing in analog, embedded processing, and connectivity technologies with over 90 years of innovation in power management, signal chain, and microcontroller solutions.
The MSP430G2xx family was designed specifically for ultra-low-power mixed-signal applications where extended battery life, integrated analog peripherals, and minimal external components are critical-targeting sensor systems, portable instrumentation, and energy-harvesting devices.
FAQ
What is the maximum operating frequency of the MSP430G2453IPW20?
The MSP430G2453IPW20 supports a maximum CPU clock frequency of 16 MHz, achieved using the internal digitally controlled oscillator (DCO) with factory-calibrated settings stored in information memory segment A. This frequency is confirmed across the full 1.8 V to 3.6 V supply range and specified in the SLAS735J datasheet revision May 2013. The DCO can be configured for 1 MHz, 8 MHz, 12 MHz, or 16 MHz operation using RSEL and DCO bits, and its stability meets timing requirements for real-time control loops in the MSP430G2453IPW20.
Does the MSP430G2453IPW20 include a hardware bootloader?
No, the MSP430G2453IPW20 does not include a factory-programmed bootstrap loader (BSL). Unlike the MSP430G2553IPW20, which integrates BSL firmware enabling UART-based flash programming, the MSP430G2453IPW20 relies solely on Spy-Bi-Wire interface for in-system programming and debugging. This design reduces flash overhead and attack surface in secure deployments. All firmware updates for the MSP430G2453IPW20 must be performed via the RST/NMI/SBWTDIO and TEST/SBWTCK pins using standard JTAG/Spy-Bi-Wire tools.
How many ADC input channels does the MSP430G2453IPW20 support?
The MSP430G2453IPW20 supports eight analog input channels (A0–A7) for its integrated 10-bit ADC10 module, as confirmed in Table 1 and functional block diagrams of the SLAS735J datasheet. These channels are mapped to P1.0, P1.1, P1.2, P1.3, P1.4, P1.5, P1.6, and P1.7 pins. The ADC10 supports autoscan mode, allowing sequential conversion of all eight channels without CPU intervention-ideal for multi-sensor monitoring in the MSP430G2453IPW20.
Can the MSP430G2453IPW20 drive capacitive touch buttons directly?
Yes, the MSP430G2453IPW20 supports capacitive-touch sensing directly through its port pins. Each bit of ports P1 and P2 includes an individually programmable pin oscillator enable bit (P1IES.x, P2IES.x), allowing the MCU to generate oscillation on selected pins for RC decay-based touch detection. No external components are required beyond the touch electrode and series resistor. This capability is documented in the "Digital I/O" section of SLAS735J and enables low-cost human-interface designs using the MSP430G2453IPW20.
What debug interface does the MSP430G2453IPW20 use?
The MSP430G2453IPW20 uses the Spy-Bi-Wire (SBW) interface for debugging and programming, implemented on pins 16 (RST/NMI/SBWTDIO) and 17 (TEST/SBWTCK). This 2-wire variant of JTAG provides full-speed emulation, flash programming, and breakpoint support while occupying only two pins-critical for space-constrained layouts. SBW is supported by TI's MSP-FET and compatible third-party tools, and is explicitly referenced in the "On-Chip Emulation Logic" feature list for the MSP430G2453IPW20.
MSP430G2453IPW20 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 20-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:
- 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:
MSP430G2453IPW20 FAQ
1.How can I place an order for MSP430G2453IPW20 through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430G2453IPW20 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 MSP430G2453IPW20 reliable?
The price and inventory of MSP430G2453IPW20 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430G2453IPW20 is usually 5 days.
3.What payment methods are accepted for MSP430G2453IPW20?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430G2453IPW20 transactions.
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4.How is shipping managed for MSP430G2453IPW20?
MSP430G2453IPW20 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430G2453IPW20 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 MSP430G2453IPW20?
For technical support, including MSP430G2453IPW20 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430G2453IPW20 requirements.
6.How does Aetrix verify that MSP430G2453IPW20 is sourced from the original manufacturer or authorized distributors?
All MSP430G2453IPW20 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 MSP430G2453IPW20 meets industry standards.
7.What is the process for return or replacement of MSP430G2453IPW20?
All MSP430G2453IPW20 units undergo pre-shipment inspection (PSI). If there is an issue with MSP430G2453IPW20, 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 MSP430G2453IPW20 part is unused and in its original packaging.
Return procedure for MSP430G2453IPW20:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MSP430G2453IPW20 Tags
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