Texas Instruments MSP430F5633IZQWT

Overview

MSP430F5633IZQWT from Texas Instruments is a 16-bit ultra-low-power mixed-signal microcontroller with 128 KB flash, 16 KB + 2 KB RAM, USB 2.0 interface, 12-bit ADC (12 external + 4 internal channels), dual USCI modules (UART/IrDA/SPI/I²C), four 16-bit timers, RTC with battery backup, and 74 GPIO pins. It operates from 1.8 V to 3.6 V and targets portable sensor systems requiring long battery life and integrated USB connectivity.

For engineers reviewing the MSP430F5633IZQWT datasheet, MSP430F5633IZQWT pinout, MSP430F5633IZQWT application, or MSP430F5633IZQWT equivalent, key selection criteria include USB-capable BGA packaging, LPM3.5 RTC retention current (1.1 µA), 20-MHz system clock support, 12-bit ADC sampling at 200 ksps, and compatibility with TI's MSP430F5xx toolchain and firmware libraries.

Technical Context

The MSP430F5633IZQWT implements a CPUXV2 core with constant generators and 16-bit registers for optimized code density. Its unified clock system integrates FLL, VLO, REFO, XT1 (32-kHz crystal), and XT2 (up to 32-MHz crystal) sources, enabling precise frequency control across power modes.

Power management includes an on-chip LDO with programmable core voltage, supply supervision (SVS/SVM), brownout reset, and five low-power modes-LPM0–LPM4.5-with wake-up from LPM3 in 3 µs (typical) and shutdown RTC mode (LPM3.5) drawing only 1.1 µA at 3.0 V.

Key Specifications

Pinout & Package

Package: MicroStar Junior™ BGA (ZQW), 113-pin, 7 mm × 7 mm footprint with 0.5-mm pitch. Designed for space-constrained portable applications and compatible with standard BGA reflow profiles.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F5634IZQWT and MSP430F5636IZQWT, the MSP430F5633IZQWT provides optimal balance of USB integration, ultra-low-power RTC operation, and 128 KB flash for compact firmware-making it ideal for cost-sensitive, battery-powered sensor nodes where DAC or extra flash capacity is unnecessary.

Availability

MSP430F5633IZQWT is available at Aetrix Electronics and suitable for portable sensor systems, digital thermostats, and hand-held meters requiring stable component supply, long-term lifecycle support, and BGA packaging for miniaturized designs.

Supply support for MSP430F5633IZQWT 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 company headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and consumer applications.

The MSP430F563x product line was designed for ultra-low-power, USB-integrated sensing and measurement applications-emphasizing extended battery life, integrated analog peripherals, and seamless firmware update capability via native USB.

FAQ

What is the maximum system clock frequency supported by the MSP430F5633IZQWT?

The MSP430F5633IZQWT supports a maximum system clock (MCLK) frequency of 20 MHz. This is achieved using the integrated FLL with XT2 crystal input up to 32 MHz or internal DCO calibration. The 20-MHz limit ensures reliable operation within specified voltage (1.8–3.6 V) and temperature ranges while maintaining ultra-low-power characteristics across all active and low-power modes. All timing-critical peripherals-including ADC, timers, and USB-are fully functional at this clock rate.

Does the MSP430F5633IZQWT include an integrated USB physical layer?

Yes, the MSP430F5633IZQWT includes a fully integrated USB 2.0 full-speed PHY with on-die termination resistors, differential driver/receiver circuitry, and dedicated 3.3-V and 1.8-V USB power regulation. This eliminates the need for external USB transceivers or voltage translators. The device also integrates a USB-PLL for clock synthesis and supports eight endpoints-four IN and four OUT-for flexible data transfer configurations in the MSP430F5633IZQWT.

How many analog input channels does the 12-bit ADC support on the MSP430F5633IZQWT?

The MSP430F5633IZQWT features the ADC12_A module with 16 total input channels: 12 external analog inputs (A0–A11) and 4 internal sources (temperature sensor, VCC/2, VeREF+, and VREF−). Channel selection is controlled via the ADC12MCTLx registers, and autoscan mode allows sequential conversion of up to 16 channels without CPU intervention-enabling efficient multi-sensor monitoring in the MSP430F5633IZQWT.

What is the typical current consumption of the MSP430F5633IZQWT in RTC-only low-power mode?

In LPM3.5 (shutdown RTC mode), the MSP430F5633IZQWT draws 1.1 µA at 3.0 V with the RTC_B module active and a 32-kHz crystal running. This mode retains RTC registers and alarms while powering down the CPU, flash, RAM, and most peripherals-making it ideal for timekeeping in battery-backed applications. The value is measured under typical conditions and reflects actual silicon behavior documented in the SLAS650G datasheet for the MSP430F5633IZQWT.

Is the MSP430F5633IZQWT pin-compatible with other devices in the MSP430F563x family?

Yes, the MSP430F5633IZQWT is pin-compatible with all other MSP430F563x devices offered in the 113-pin ZQW package-including MSP430F5634IZQWT, MSP430F5636IZQWT, and MSP430F5638IZQWT. Pin functions, power domains, and peripheral mappings are identical across these variants. Firmware developed for one ZQW variant can be reused on another with only flash/RAM size and optional peripheral (e.g., DAC) awareness-ensuring design scalability and BOM flexibility for the MSP430F5633IZQWT.