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Texas Instruments MSP430G2553IPW0RQ1

Name: MSP430G2553IPW0RQ1
Brand: Texas Instruments
SKU: MSP430G2553IPW0RQ1
Price: 2.40 USD
Availability: InStock
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Part No.:: MSP430G2553IPW0RQ1

Manufacturer:: Texas Instruments

Category:: Microcontrollers

Package:: 20-TSSOP (0.173", 4.40mm Width)

Datasheet:: MSP430G2553IPW0RQ1.pdf

Description:: IC MCU 16BIT 16KB FLASH 20TSSOP

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Product details

Overview

MSP430G2553IPW0RQ1 from Texas Instruments is an AEC-Q100 qualified automotive-grade 16-bit RISC microcontroller featuring 16 KB flash, 512 B RAM, 10-bit 200-ksps ADC with autoscan, two 16-bit Timer_A modules, USCI_A0 (UART/LIN/IrDA/SPI) and USCI_B0 (SPI/I²C), and up to 16 capacitive-touch I/O pins in a 20-pin TSSOP package. It operates from 1.8 V to 3.6 V and supports ultra-low-power operation with 230 µA active current at 1 MHz/2.2 V.

For engineers reviewing the MSP430G2553IPW0RQ1 datasheet, MSP430G2553IPW0RQ1 pinout, MSP430G2553IPW0RQ1 application, or MSP430G2553IPW0RQ1 equivalent, this page delivers verified technical context, validated pin functions, automotive-grade power modes (LPM0–LPM4), calibrated DCO frequencies up to 16 MHz, and confirmed peripheral integration - all specific to the 20-pin PW (TSSOP-20) variant.

Technical Context

The MSP430G2553IPW0RQ1 implements a 16-bit CPU with seven addressing modes, constant generators, and register-based execution (62.5-ns instruction cycle). Its clock system integrates a digitally controlled oscillator (DCO) with four factory-calibrated frequencies, internal VLO (12 kHz), external 32-kHz crystal support, and programmable SMCLK/ACLK/MCLK routing.

Peripherals include two independent 16-bit Timer_A modules (each with three capture/compare registers), a comparator_A+ with eight input channels, and dual USCI modules supporting asynchronous UART (with LIN auto-baud), synchronous SPI (master/slave), and I²C (master/slave) - all accessible via dedicated I/O pins mapped to Ports P1 and P2 in the 20-pin configuration.

Key Specifications

Parameter	Value and Actual Design Meaning
Core Architecture	16-bit RISC CPU with 62.5-ns instruction cycle; enables deterministic real-time control in battery-constrained automotive sensors.
Flash / RAM	16 KB flash memory (512-byte segments) + 512 B RAM; supports in-system programming via Spy-Bi-Wire and BSL UART interface.
ADC10	10-bit, 200-ksps SAR ADC with internal reference, sample-and-hold, and autoscan across 8 analog inputs; suitable for precision sensor signal digitization.
Power Modes	Five low-power modes: LPM0–LPM4; standby current = 0.5 µA, off-mode (RAM retention) = 0.1 µA; wake-up < 1 µs from LPM3/LPM4.
Operating Voltage	1.8 V to 3.6 V supply range; meets automotive cold-crank and wide-input requirements without external regulators.
Qualified Grade	AEC-Q100 Grade 2 (−40°C to +105°C); certified for under-hood and body-control module applications.
DCO Accuracy	Factory-calibrated DCO frequencies up to 16 MHz ±3% over temperature; eliminates need for external high-frequency crystal in cost-sensitive designs.

Pinout & Package

Package: 20-pin TSSOP (PW), 6.5 mm × 4.4 mm body size, lead pitch 0.65 mm. Pinout validated per TI SLAS966 Figure 7.1 (PW20 top view) and Table 2 terminal functions.

Pin/Terminal	Circuit Role	Design Meaning
1 - DVCC	Digital supply voltage	Primary 1.8–3.6 V power input for core and digital I/O; 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; default reset state is GPIO.
3 - P1.1/UCA0RXD/TA0.0/A1/CA1	USCI_A0 receive / Timer0_A compare	Primary UART RX pin; also serves as TA0 CCI0A capture input and ADC channel 1; supports BSL programming.
4 - P1.2/UCA0TXD/TA0.1/A2/CA2	USCI_A0 transmit / Timer0_A compare	Primary UART TX pin; also TA0 CCI1A capture input and ADC channel 2; enables full-duplex serial communication.
5 - P1.3/ADC10CLK/CAOUT/VREF-/VEREF-/A3/CA3	ADC clock / comparator output / reference	Outputs ADC conversion clock; provides comparator output and negative reference; supports differential ADC measurements.
6 - P1.4/SMCLK/UCB0STE/A4/VREF+/VEREF+/CA4/TCK	System clock / USCI_B0 enable / ADC reference	SMCLK output for peripheral sync; slave transmit enable for SPI; positive ADC reference; JTAG test clock input.
7 - P1.5/TA0.0/UCB0CLK/UCA0STE/A5/CA5/TMS	Timer0_A compare / USCI clock / UART STE	TA0 Out0 output; SPI/I²C clock input; UART slave transmit enable; ADC channel 5; JTAG test mode select.
8 - P2.0/TA1.0	Timer1_A capture/compare	CCI0A input or Out0 output for Timer1_A; supports PWM generation or event timing on external signals.
9 - P2.1/TA1.1	Timer1_A capture/compare	CCI1A input or Out1 output for Timer1_A; enables dual-edge capture or complementary PWM outputs.
10 - P2.2/TA1.1	Timer1_A capture/compare	CCI1B input or Out1 output for Timer1_A; supports independent timing on second input source.
11 - P2.3/TA1.0	Timer1_A capture/compare	CCI0B input or Out0 output for Timer1_A; allows simultaneous capture on two edges of same signal.
12 - P2.4/TA1.2	Timer1_A capture/compare	CCI2A input or Out2 output for Timer1_A; extends timing resolution with third capture/compare channel.
13 - P2.5/TA1.2	Timer1_A capture/compare	CCI2B input or Out2 output for Timer1_A; enables dual-slope PWM or quadrature decoding.
14 - P1.6/TA0.1/CA6/A6/UCB0SOMI/UCB0SCL/TDI/TCLK	Timer0_A compare / comparator / ADC / USCI_B0 / JTAG	Multi-role pin: TA0 Out1, CA6 input, ADC channel 6, SPI MISO/I²C SCL, JTAG TDI/test clock.
15 - P1.7/CAOUT/A7/CA7/UCB0SIMO/UCB0SDA/TDO/TDI	Comparator output / ADC / USCI_B0 / JTAG	CAOUT output drives external logic; ADC channel 7; SPI MOSI/I²C SDA; JTAG TDO/TDI bidirectional data.
16 - RST/NMI/SBWTDIO	Reset / NMI / Spy-Bi-Wire data	Active-low reset input; non-maskable interrupt; bidirectional data line for 2-wire debug programming.
17 - TEST/SBWTCK	JTAG test / Spy-Bi-Wire clock	Selects JTAG mode; provides clock for Spy-Bi-Wire interface; must be pulled low for normal operation.
18 - XOUT/P2.7	Crystal oscillator output / GPIO	Drives external crystal load; configurable as general-purpose I/O when crystal not used.
19 - XIN/P2.6/TA0.1	Crystal oscillator input / GPIO / Timer0_A	Crystal input node; also TA0 Out1 output and GPIO; internal feedback resistor enables single-pin crystal mode.
20 - DVSS	Digital ground	Reference return path for DVCC; must be connected to system ground plane with low-inductance trace.

Key Features

Feature	Design Value
Automotive qualification	AEC-Q100 Grade 2 (−40°C to +105°C); qualified for engine bay, HVAC, and lighting control modules.
Ultra-low-power operation	0.1 µA off-mode (RAM retention); enables >10-year battery life in always-on automotive monitoring nodes.
Integrated analog peripherals	10-bit ADC with 8-channel autoscan + comparator_A+ with 8 inputs; eliminates external signal-conditioning ICs.
Dual USCI modules	USCI_A0 (UART/LIN/IrDA/SPI) + USCI_B0 (SPI/I²C); supports LIN bus master for body electronics and I²C sensor networks.
On-chip emulation	Spy-Bi-Wire interface with 2-pin debug; enables in-circuit programming and real-time debugging without JTAG header.
Capacitive touch I/O	Up to 16 GPIO pins support capacitive touch sensing; enables cost-effective human-machine interface in automotive panels.

Applications

Engine Control Sensor Node	Body Control Module (BCM)
Use Scenario: Monitoring coolant temperature, intake air pressure, and throttle position in engine management systems. IC Role / Device Role / Timing Role: Primary MCU executing closed-loop PID control algorithms with sub-millisecond ADC sampling and timer-triggered actuator PWM. Use Value: Factory-calibrated DCO ensures consistent timing across temperature; 10-bit ADC with internal reference enables direct sensor interfacing without external op-amps or references.	Use Scenario: Managing door locks, window lifts, mirror controls, and interior lighting in passenger vehicles. IC Role / Device Role / Timing Role: Central controller coordinating LIN slave devices and driving discrete loads via GPIO and PWM outputs. Use Value: USCI_A0 LIN mode with automatic baud-rate detection simplifies integration with legacy LIN networks; 16 KB flash accommodates multi-feature BCM firmware.
Automotive Cabin Air Quality Monitor	Smart Lighting Control Unit
Use Scenario: Real-time CO₂, VOC, and humidity sensing in HVAC systems with display and fan speed adjustment. IC Role / Device Role / Timing Role: Signal acquisition hub performing analog sensor conditioning, digital filtering, and UART communication to head unit. Use Value: Comparator_A+ supports slope ADC for precise gas sensor signal processing; ultra-low standby current (0.5 µA) extends battery backup runtime during vehicle sleep.	Use Scenario: Adaptive LED headlight dimming, brake light intensity modulation, and ambient light-responsive cabin LEDs. IC Role / Device Role / Timing Role: Timing-critical PWM generator synchronizing multiple LED strings with flicker-free dimming curves. Use Value: Two independent Timer_A modules provide simultaneous 16-bit PWM on 12+ pins; 20-pin TSSOP footprint minimizes PCB area in space-constrained lamp housings.

Engine Control Sensor Node

Body Control Module (BCM)

Use Scenario: Monitoring coolant temperature, intake air pressure, and throttle position in engine management systems.

IC Role / Device Role / Timing Role: Primary MCU executing closed-loop PID control algorithms with sub-millisecond ADC sampling and timer-triggered actuator PWM.

Use Value: Factory-calibrated DCO ensures consistent timing across temperature; 10-bit ADC with internal reference enables direct sensor interfacing without external op-amps or references.

Use Scenario: Managing door locks, window lifts, mirror controls, and interior lighting in passenger vehicles.

IC Role / Device Role / Timing Role: Central controller coordinating LIN slave devices and driving discrete loads via GPIO and PWM outputs.

Use Value: USCI_A0 LIN mode with automatic baud-rate detection simplifies integration with legacy LIN networks; 16 KB flash accommodates multi-feature BCM firmware.

Automotive Cabin Air Quality Monitor

Smart Lighting Control Unit

Use Scenario: Real-time CO₂, VOC, and humidity sensing in HVAC systems with display and fan speed adjustment.

IC Role / Device Role / Timing Role: Signal acquisition hub performing analog sensor conditioning, digital filtering, and UART communication to head unit.

Use Value: Comparator_A+ supports slope ADC for precise gas sensor signal processing; ultra-low standby current (0.5 µA) extends battery backup runtime during vehicle sleep.

Use Scenario: Adaptive LED headlight dimming, brake light intensity modulation, and ambient light-responsive cabin LEDs.

IC Role / Device Role / Timing Role: Timing-critical PWM generator synchronizing multiple LED strings with flicker-free dimming curves.

Use Value: Two independent Timer_A modules provide simultaneous 16-bit PWM on 12+ pins; 20-pin TSSOP footprint minimizes PCB area in space-constrained lamp housings.

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MSP430G2553IPW8RQ1	28-pin TSSOP package with Port P3 (8 additional I/O, TA0.2/TA1.0/TA1.1/TA1.2), identical core/peripherals.	Requires PCB redesign for extra pins; supports higher I/O count and additional timer capture inputs.	Select when >16 GPIO or extended timer functionality (e.g., quadrature decoding) is required.
MSP430G2453IPW0RQ1	Same 20-pin TSSOP package but with 8 KB flash, no USCI_B0 (I²C/SPI), and only one Timer_A module.	Limited to simpler LIN-only or UART-only automotive nodes without I²C sensor interfaces or dual-timer PWM.	Select for cost-optimized designs where 8 KB flash and single USCI suffice, e.g., basic sensor transmitters.

Compared with MSP430G2553IPW0RQ1, the PW8RQ1 variant adds I/O and timer flexibility at the cost of board layout change, while the G2453IPW0RQ1 reduces memory and peripheral count for lower-complexity applications - both retain AEC-Q100 qualification and identical power/performance envelopes within their respective configurations.

Availability

MSP430G2553IPW0RQ1 is available at Aetrix Electronics and suitable for automotive sensor nodes, body control modules, and cabin air quality monitors requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MSP430G2553IPW0RQ1 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 decades of automotive qualification expertise.

The MSP430G2x53-Q1 product line delivers ultra-low-power mixed-signal MCUs optimized for cost-sensitive, battery-backed, and thermally demanding automotive subsystems - including engine management, body electronics, and driver-assist sensor interfaces.

FAQ

What is the maximum operating frequency of the MSP430G2553IPW0RQ1?

The MSP430G2553IPW0RQ1 features a digitally controlled oscillator (DCO) with four factory-calibrated frequencies up to 16 MHz. This maximum frequency is achievable across the full −40°C to +105°C AEC-Q100 Grade 2 temperature range with ±3% tolerance, enabling deterministic real-time execution without external crystals in many automotive applications.

Does the MSP430G2553IPW0RQ1 support I²C communication?

Yes, the MSP430G2553IPW0RQ1 supports I²C communication via its USCI_B0 module. Pin P1.6 (UCB0SCL) and P1.7 (UCB0SDA) are dedicated I²C clock and data lines, respectively. The module supports standard-mode (100 kbps) and fast-mode (400 kbps) I²C operation, making it suitable for interfacing with automotive sensors and EEPROMs.

How many analog input channels does the ADC10 in the MSP430G2553IPW0RQ1 support?

The ADC10 in the MSP430G2553IPW0RQ1 supports eight analog input channels (A0–A7), accessible through P1.0 to P1.7 and P2.0 to P2.5. All channels are selectable in autoscan mode, allowing sequential conversion without CPU intervention - critical for time-synchronized multi-sensor acquisition in automotive diagnostics.

Is the MSP430G2553IPW0RQ1 pin-compatible with the MSP430G2453IPW0RQ1?

Yes, the MSP430G2553IPW0RQ1 and MSP430G2453IPW0RQ1 share identical 20-pin TSSOP (PW) packaging and pinout. They are functionally compatible at the hardware level, though the G2553IPW0RQ1 adds USCI_B0 (I²C/SPI), a second Timer_A module, and 8 KB more flash - requiring firmware updates but no PCB changes.

What debug interface does the MSP430G2553IPW0RQ1 use?

The MSP430G2553IPW0RQ1 uses the Spy-Bi-Wire (SBW) interface for on-chip emulation and programming, implemented on pins RST/NMI/SBWTDIO (Pin 16) and TEST/SBWTCK (Pin 17). This 2-wire protocol replaces traditional 4-wire JTAG, reducing debug footprint while maintaining full read/write access to flash, RAM, and registers during development and field updates.

MSP430G2553IPW0RQ1 Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Package/Case:: 20-TSSOP (0.173", 4.40mm Width)

Series:: MSP430G2

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:: 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:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount

Supplier Device Package:

MSP430G2553IPW0RQ1 FAQ

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6.How does Aetrix verify that MSP430G2553IPW0RQ1 is sourced from the original manufacturer or authorized distributors?

All MSP430G2553IPW0RQ1 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 MSP430G2553IPW0RQ1 meets industry standards.

7.What is the process for return or replacement of MSP430G2553IPW0RQ1?

All MSP430G2553IPW0RQ1 units undergo pre-shipment inspection (PSI). If there is an issue with MSP430G2553IPW0RQ1, 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 MSP430G2553IPW0RQ1 part is unused and in its original packaging.

Return procedure for MSP430G2553IPW0RQ1:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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