My Inquiry
My Account
Texas Instruments MSP430G2533IPW20
- Part No.:
- MSP430G2533IPW20
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MSP430G2533IPW20.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,810
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MSP430G2533IPW20 from Texas Instruments is a 16-bit ultra-low-power mixed-signal microcontroller featuring 16 KB Flash, 512 B RAM, a 10-bit 200-ksps ADC with 8 channels, two 16-bit Timer_A modules, USCI with UART/LIN/IrDA/SPI/I²C, and capacitive-touch-capable I/O. It operates from 1.8 V to 3.6 V and targets battery-powered sensor nodes and portable measurement systems.
For engineers reviewing the MSP430G2533IPW20 datasheet, MSP430G2533IPW20 pinout, MSP430G2533IPW20 application, or MSP430G2533IPW20 equivalent, key selection criteria include its 20-pin TSSOP package, integrated ADC reference, Spy-Bi-Wire debug interface, low-power wake-up timing (<1 µs), and compatibility with TI's MSP430G2x33 family toolchain and firmware libraries.
Technical Context
The MSP430G2533IPW20 implements a 16-bit RISC CPU with constant generators and a digitally controlled oscillator (DCO) calibrated to 1 MHz, 8 MHz, 12 MHz, and 16 MHz. Its clock system supports internal VLO, external 32-kHz crystal, and high-frequency external digital sources - enabling flexible trade-offs between accuracy, power, and startup time.
Peripherals are tightly integrated via the USCI module (dual independent channels supporting UART, SPI, and I²C), two Timer_A units each with three capture/compare registers, and an ADC10 with autoscan, internal reference, and sample-and-hold - all directly memory-mapped and interrupt-capable for deterministic real-time operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 16 registers and constant generators; enables compact, efficient C code execution in resource-constrained embedded applications. |
| Flash / RAM | 16 KB Flash program memory and 512 B RAM; sufficient for standalone sensor firmware with ADC data buffering and communication stack. |
| ADC Resolution & Speed | 10-bit, 200-ksps SAR ADC with 8 input channels, internal reference, and autoscan; supports simultaneous analog monitoring of multiple sensors without external muxing. |
| Power Consumption | 230 µA active at 1 MHz/2.2 V; 0.5 µA standby; 0.1 µA off-mode with RAM retention - extends coin-cell battery life to multi-year operation. |
| Timer Resources | Two 16-bit Timer_A modules, each with three capture/compare registers; enables precise PWM generation, input capture for pulse-width measurement, and interval timing. |
| Communication Interfaces | USCI_A0 (UART/LIN/IrDA/SPI) + USCI_B0 (SPI/I²C); supports dual-protocol connectivity - e.g., UART to host MCU and I²C to local sensors - on shared pins. |
| Supply Voltage Range | 1.8 V to 3.6 V operating range; compatible with single-cell Li-ion, LiFePO₄, or alkaline battery systems without external regulation. |
Pinout & Package
TSSOP-20 package (6.5 mm × 4.4 mm), lead pitch 0.65 mm, surface-mount; suitable for compact PCB layouts and automated assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0/TA0CLK/ACLK/A0 | Multi-function I/O | Primary ACLK output, Timer0_A clock input, or ADC channel 0 - configurable per system timing or sensing needs. |
| P1.3/ADC10CLK/VREF-/VEREF-/A3 | Analog reference & ADC input | Provides ADC negative reference (VREF−) and serves as analog input A3; enables ratiometric measurements using internal or external references. |
| P1.4/SMCLK/UCB0STE/UCA0CLK/A4 | System clock & peripheral control | Outputs SMCLK for synchronous peripherals; controls USCI slave transmit enable and provides UART/SPI clock - critical for coordinated serial timing. |
| P1.5/TA0.0/UCB0CLK/UCA0STE/A5 | Timer & USCI control | Delivers Timer0_A compare output 0 and acts as USCI clock/STE signal - supports PWM-driven peripherals or hardware flow control. |
| RST/NMI/SBWTDIO | Reset & debug I/O | Single-pin Spy-Bi-Wire bidirectional debug interface; eliminates need for dedicated JTAG header, saving board space and cost. |
| XIN/XOUT | Crystal oscillator terminals | Supports 32-kHz crystal for accurate real-time clock (RTC) or low-power sleep mode timing; internal load capacitance reduces external component count. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-fast wake-up | Sub-1 µs transition from LPM3 standby to active mode - enables duty-cycled sensing with minimal latency and energy overhead. |
| Capacitive touch I/O | Up to 24 pins support capacitive touch sensing without external components - simplifies human-interface design in wearables and controls. |
| Built-in brownout detection | Monitors VCC and triggers reset if supply drops below safe operating threshold - prevents erratic behavior during battery depletion or transient dips. |
| On-chip emulation logic | Integrated Spy-Bi-Wire interface allows full-speed debugging and flash programming via two-wire connection - reduces development footprint and cost. |
| Calibrated DCO frequencies | Factory-trimmed DCO supports 1/8/12/16 MHz operation without external crystal - accelerates bring-up and lowers BOM for non-precision timing apps. |
Applications
| Smart Sensor Node | Portable Medical Monitor |
|---|---|
|
Use Scenario: Battery-powered environmental sensor collecting temperature, humidity, and light data at 10-second intervals. IC Role / Device Role / Timing Role: Central controller executing ADC sampling, data preprocessing, and UART transmission to Bluetooth module. Use Value: 0.1 µA off-mode with RAM retention preserves state across sleep cycles; 10-bit ADC enables 0.1°C resolution thermistor readings without external amplifier. |
Use Scenario: Wearable pulse oximeter requiring low-noise analog front-end and real-time LED current control. IC Role / Device Role / Timing Role: Analog acquisition engine managing photodiode signal conditioning, LED drive timing, and I²C communication with display driver. Use Value: Dual Timer_A units generate precise, phase-aligned PWM for red/IR LED drive; internal VREF ensures stable ADC reference despite battery voltage sag. |
| Capacitive Touch Remote | Industrial Data Logger |
|
Use Scenario: Handheld remote with 8-button capacitive keypad and IR transmitter for HVAC control. IC Role / Device Role / Timing Role: Touch controller scanning electrodes and encoding button events into IR carrier bursts. Use Value: Dedicated capacitive-touch I/O eliminates external RC networks; USCI_A0 generates 38-kHz IR carrier via UART LIN mode with automatic baud-rate detection. |
Use Scenario: Ruggedized field logger recording vibration, pressure, and ambient temperature every minute for 30 days. IC Role / Device Role / Timing Role: Low-power data aggregator managing sensor polling, timestamping via ACLK, and SPI flash writes. Use Value: 512 B RAM buffers 128 samples before SPI write; LPM4 mode draws only 0.1 µA - extending CR2032 battery life beyond 12 months. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430G2433IPW20 | 8 KB Flash, same 512 B RAM, identical peripherals and pinout - no ADC10 calibration data stored in info memory. | Suitable for cost-sensitive designs where 8 KB firmware footprint suffices and factory ADC calibration is not required. | Select when firmware size <8 KB and ADC linearity tolerance >±2 LSB is acceptable. |
| MSP430G2553IPW20 | Same 16 KB Flash/RAM, but adds comparator_A+ and enhanced USCI features; pin-compatible with identical TSSOP-20 layout. | Preferred for designs needing analog window comparison or higher UART reliability (e.g., automotive diagnostics). | Choose when comparator-based event triggering or robust LIN bus compliance is required - no PCB change needed. |
Compared with MSP430G2433IPW20, the MSP430G2533IPW20 offers double Flash and factory ADC calibration for improved measurement consistency; versus MSP430G2553IPW20, it omits comparator_A+ but maintains identical power profile and debug interface - making it optimal for pure sensor-to-serial applications.
Availability
MSP430G2533IPW20 is available at Aetrix Electronics and suitable for smart sensor nodes, portable medical monitors, capacitive touch remotes, and industrial data loggers requiring stable component supply and long-term production continuity.
Supply support for MSP430G2533IPW20 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 energy efficiency and system integration.
The MSP430G2x33 product line targets ultra-low-power, cost-optimized embedded applications - specifically designed for battery-operated sensor interfaces, portable instrumentation, and human-interface devices where sub-µA sleep and integrated analog capability are essential.
FAQ
What is the maximum system clock frequency supported by the MSP430G2533IPW20?
The MSP430G2533IPW20 supports up to 16 MHz MCLK when VCC ≥ 3.3 V and duty cycle is 50% ±10%. At 2.7 V, max frequency is 12 MHz; at 1.8 V, it is limited to 6 MHz. These limits are defined in the Recommended Operating Conditions table and ensure reliable timing margin across voltage and temperature ranges. The DCO is factory-calibrated to these frequencies.
Does the MSP430G2533IPW20 include hardware debug capability?
Yes, the MSP430G2533IPW20 integrates Spy-Bi-Wire (SBW) emulation logic accessible via the RST/NMI/SBWTDIO and TEST/SBWTCK pins. This two-wire interface supports full-speed debugging, flash programming, and real-time register inspection using TI's MSP-FET or compatible tools - no external JTAG header required.
How many analog input channels does the ADC10 in the MSP430G2533IPW20 support?
The ADC10 in the MSP430G2533IPW20 supports 8 analog input channels (A0–A7), mapped to P1.0, P1.1, P1.2, P1.3, P1.4, P1.5, P1.6, and P1.7 respectively. All channels share the same 10-bit SAR architecture and can be scanned automatically in sequence using the autoscan feature.
Can the MSP430G2533IPW20 operate from a single 1.8-V supply?
Yes, the MSP430G2533IPW20 is fully specified to operate from 1.8 V to 3.6 V. At 1.8 V, it delivers 6 MHz system clock performance, 230 µA active current at 1 MHz, and retains full peripheral functionality including ADC, timers, and USCI - making it ideal for single-cell lithium or alkaline battery systems.
Is the MSP430G2533IPW20 pin-compatible with other devices in the MSP430G2x33 family?
Yes, the MSP430G2533IPW20 in TSSOP-20 package shares identical pinout and electrical characteristics with MSP430G2433IPW20 and MSP430G2333IPW20. This allows direct substitution within the same footprint when adjusting Flash size or ADC requirements - provided firmware accommodates memory and calibration differences.
MSP430G2533IPW20 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, 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:
MSP430G2533IPW20 FAQ
1.How can I place an order for MSP430G2533IPW20 through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430G2533IPW20 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 MSP430G2533IPW20 reliable?
The price and inventory of MSP430G2533IPW20 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430G2533IPW20 is usually 5 days.
3.What payment methods are accepted for MSP430G2533IPW20?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430G2533IPW20 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430G2533IPW20?
MSP430G2533IPW20 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430G2533IPW20 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 MSP430G2533IPW20?
For technical support, including MSP430G2533IPW20 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430G2533IPW20 requirements.
6.How does Aetrix verify that MSP430G2533IPW20 is sourced from the original manufacturer or authorized distributors?
All MSP430G2533IPW20 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 MSP430G2533IPW20 meets industry standards.
7.What is the process for return or replacement of MSP430G2533IPW20?
All MSP430G2533IPW20 units undergo pre-shipment inspection (PSI). If there is an issue with MSP430G2533IPW20, 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 MSP430G2533IPW20 part is unused and in its original packaging.
Return procedure for MSP430G2533IPW20:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MSP430G2533IPW20 Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
