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Texas Instruments MSP430G2453IN20
- Part No.:
- MSP430G2453IN20
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 20-DIP (0.300", 7.62mm)
- Datasheet:
-
MSP430G2453IN20.pdf
- Description:
- IC MCU 16BIT 8KB FLASH 20DIP
- Quantity:
- Payment:
- Shipping:
Inventory:233
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Product details
Overview
MSP430G2453IN20 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, 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 MSP430G2453IN20 datasheet, MSP430G2453IN20 pinout, MSP430G2453IN20 application, or MSP430G2453IN20 equivalent, key selection criteria include its 20-pin PDIP package, ADC10 availability (vs. G2x13 series), Spy-Bi-Wire debug interface, five low-power modes, and integrated capacitive-touch I/O capability.
Technical Context
The MSP430G2453IN20 implements a 16-bit RISC CPU with 62.5-ns instruction cycle time and constant generators for code efficiency. Its clock system integrates a digitally controlled oscillator (DCO), internal LF oscillator, and external crystal support (32 kHz), enabling sub-1-µs wake-up from LPM4.
Peripherals include two independent 16-bit Timer_A modules (TA0 and TA1), each with three capture/compare registers, and dual USCI modules supporting asynchronous UART/LIN/IrDA and synchronous SPI/I²C protocols - all accessible via memory-mapped registers and interrupt-driven operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 16 general-purpose registers and 62.5-ns instruction cycle at 16 MHz |
| Flash / RAM | 16 KB flash program memory and 512 B RAM - sufficient for standalone sensor firmware with ADC data buffering |
| ADC10 | 10-bit, 200-ksps SAR ADC with internal reference, sample-and-hold, autoscan, and 8-channel input multiplexing |
| Power Modes | Five software-selectable low-power modes; standby current 0.5 µA, off-mode (RAM retention) 0.1 µA |
| USCI Peripherals | USCI_A0 supports UART (with auto-baud LIN detection), IrDA, SPI; USCI_B0 supports SPI and I²C master/slave |
| Operating Voltage | 1.8 V to 3.6 V - compatible with single-cell Li-ion, alkaline, or coin-cell power sources |
| Debug Interface | Spy-Bi-Wire 2-wire interface - enables in-system programming and real-time debugging using minimal PCB footprint |
Pinout & Package
Package: 20-pin PDIP (N20), 7.62 mm × 20.32 mm body, 2.54 mm pitch, through-hole mounting.
| 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 CA0 |
| 5 (P1.3/ADC10CLK/CAOUT/VREF−/VEREF−/A3/CA3) | Analog peripheral terminal | ADC10 conversion clock output; negative reference input; analog input A3; comparator output/CA3 |
| 6 (P1.4/SMCLK/CA4/TCK/VREF+/VEREF+/A4/UCB0STE/UCA0CLK) | Multi-function I/O | SMCLK output, JTAG TCK, ADC positive reference, analog input A4, USCI clock/STE control |
| 16 (RST/NMI/SBWTDIO) | Reset & debug I/O | Active-low reset, non-maskable interrupt, and bidirectional Spy-Bi-Wire data line |
| 17 (TEST/SBWTCK) | Debug clock input | JTAG TEST pin repurposed as Spy-Bi-Wire clock; required for programming and debug access |
| 19 (XIN/P2.6/TA0.1) | Clock input | Crystal oscillator input or external clock source; also serves as Timer_A0 compare output |
| 20 (DVSS) | Digital ground | Reference return path for digital circuitry; must be connected to system ground plane |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | Active mode: 230 µA at 1 MHz/2.2 V; LPM4 (RAM retention): 0.1 µA - extends battery life in intermittent-sensing applications |
| Integrated analog subsystem | 10-bit ADC10 with internal reference and 8-channel autoscan + 8-channel analog comparator - eliminates need for external signal conditioning in basic sensor interfaces |
| Capacitive-touch I/O | Up to 24 pins support capacitive touch sensing via built-in oscillator enable bits - enables direct implementation of touch buttons without external ICs |
| Universal Serial Communication | Dual USCI modules support UART (LIN-capable), IrDA, SPI, and I²C - simplifies connectivity to displays, sensors, and host controllers |
| On-chip emulation | Spy-Bi-Wire interface with 2-pin debug access - reduces development cost and board space vs. full 4-pin JTAG |
Applications
| Environmental Sensor Node | Portable Medical Monitor |
|---|---|
Use Scenario: Battery-powered temperature/humidity sensor collecting analog signals and transmitting data wirelessly via UART to a gateway. IC Role / Device Role / Timing Role: Primary MCU executing sensor polling, ADC conversion, data formatting, and UART transmission; uses ACLK for precise timing and LPM3 during sleep intervals. Use Value: 0.5 µA standby current and integrated ADC reduce BOM count and extend 2-AA battery life beyond 2 years in 1-minute sampling intervals. | Use Scenario: Handheld pulse oximeter acquiring analog photodiode signals and driving an OLED display via SPI. IC Role / Device Role / Timing Role: Signal acquisition controller managing ADC10 sampling, comparator-based threshold detection, and SPI display updates; leverages Timer_A for LED pulse timing. Use Value: On-chip comparator enables real-time saturation detection without external op-amps; 16 KB flash accommodates calibration algorithms and UI logic. |
| Industrial Control Panel | Smart Meter Interface Module |
Use Scenario: DIN-rail mounted HMI panel monitoring relay status and controlling actuators via GPIO and PWM outputs. IC Role / Device Role / Timing Role: Local intelligence unit handling button debouncing, LED/PWM control, and RS-485 communication via USCI_A0 UART with LIN auto-baud detection. Use Value: Dual Timer_A modules provide independent PWM generation and input-capture for encoder feedback, eliminating external timers. | Use Scenario: Sub-metering module interfacing with current/voltage sensors and communicating metering data over I²C to a main controller. IC Role / Device Role / Timing Role: Sensor interface MCU performing simultaneous multi-channel ADC sampling, CRC calculation, and I²C slave communication using USCI_B0. Use Value: Integrated 10-bit ADC with internal reference ensures stable measurement accuracy across 1.8–3.6 V supply range without external voltage references. |
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 | Same 20-pin TSSOP package; adds BSL bootloader and enhanced USCI features including IrDA encoding/decoding | Preferred where field firmware updates via UART are required or IrDA physical layer support is needed | Select MSP430G2553IPW20 when BSL-enabled in-system programming or IrDA protocol compliance is mandatory |
| MSP430G2413IN20 | Identical 20-pin PDIP package and core peripherals but lacks ADC10 module and has only 256 B RAM | Suitable for pure digital control tasks without analog sensing; lower cost where ADC is unnecessary | Choose MSP430G2413IN20 for cost-sensitive digital I/O or timing-only applications without analog conversion needs |
Compared with MSP430G2453IN20, MSP430G2553IPW20 offers enhanced communication flexibility and programmability in a surface-mount package, while MSP430G2413IN20 provides identical mechanical compatibility at reduced analog capability and memory - enabling trade-offs between feature depth, upgrade path, and bill-of-materials cost.
Availability
MSP430G2453IN20 is available at Aetrix Electronics and suitable for environmental sensor nodes, portable medical monitors, industrial control panels, and smart meter interface modules requiring stable component supply, long-term manufacturability, and TI's extended product lifecycle support.
Supply support for MSP430G2453IN20 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 applications.
The MSP430G2xx family delivers ultra-low-power mixed-signal microcontrollers optimized for battery-operated sensing, measurement, and control systems - emphasizing energy efficiency, integrated analog peripherals, and compact packaging.
FAQ
What is the maximum ADC sampling rate supported by the MSP430G2453IN20?
The MSP430G2453IN20 features the ADC10 module, which supports up to 200 ksamples per second (ksps) under optimal conditions - specifically with internal reference enabled, maximum ADC10CLK frequency, and no conversion delay overhead. This rate is achievable when using the internal 5-MHz DCO-derived clock and autoscan mode across fewer than eight channels.
Does the MSP430G2453IN20 support hardware UART with automatic baud-rate detection?
Yes, the MSP430G2453IN20 supports automatic baud-rate detection in UART mode via its USCI_A0 module. This LIN-compliant feature allows the MSP430G2453IN20 to detect incoming break characters and synchronize to unknown baud rates - critical for interoperability in automotive and industrial networks where master node timing varies.
What debug interface does the MSP430G2453IN20 use, and how many pins are required?
The MSP430G2453IN20 uses the Spy-Bi-Wire (SBW) interface for debugging and programming, requiring only two pins: RST/NMI/SBWTDIO (Pin 16) and TEST/SBWTCK (Pin 17). This 2-wire interface replaces full JTAG, reducing PCB routing complexity while maintaining full read/write memory access and real-time breakpoint capability.
Can the MSP430G2453IN20 operate from a single 1.8-V supply, and what are the implications for peripheral functionality?
Yes, the MSP430G2453IN20 operates across 1.8 V to 3.6 V. At 1.8 V, all core functions remain active - including CPU, flash, RAM, ADC10 (with internal reference), USCI modules, and Timer_A - though maximum clock frequency is limited to approximately 8 MHz. The ADC10 maintains 10-bit resolution and 200-ksps capability down to 1.8 V, validated per TI's SLAS735J specification.
How many I/O pins on the MSP430G2453IN20 support capacitive touch sensing?
The MSP430G2453IN20 supports capacitive touch sensing on up to 24 I/O pins - specifically all P1.x, P2.x, and P3.x pins (where available). In the 20-pin PDIP package (N20), Port P3 is not implemented; thus, capacitive touch is available on all 16 GPIO pins (P1.0–P1.7 and P2.0–P2.7), each with individually configurable oscillator enable bits for RC-oscillator-based touch measurement.
MSP430G2453IN20 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:
- 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:
- Through Hole
- Supplier Device Package:
MSP430G2453IN20 FAQ
1.How can I place an order for MSP430G2453IN20 through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430G2453IN20 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 MSP430G2453IN20 reliable?
The price and inventory of MSP430G2453IN20 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430G2453IN20 is usually 5 days.
3.What payment methods are accepted for MSP430G2453IN20?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430G2453IN20 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430G2453IN20?
MSP430G2453IN20 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430G2453IN20 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 MSP430G2453IN20?
For technical support, including MSP430G2453IN20 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430G2453IN20 requirements.
6.How does Aetrix verify that MSP430G2453IN20 is sourced from the original manufacturer or authorized distributors?
All MSP430G2453IN20 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 MSP430G2453IN20 meets industry standards.
7.What is the process for return or replacement of MSP430G2453IN20?
All MSP430G2453IN20 units undergo pre-shipment inspection (PSI). If there is an issue with MSP430G2453IN20, 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 MSP430G2453IN20 part is unused and in its original packaging.
Return procedure for MSP430G2453IN20:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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