Texas Instruments MSP430F6633IZQWT

Overview

MSP430F6633IZQWT from Texas Instruments is a 16-bit ultra-low-power mixed-signal microcontroller featuring 128 KB Flash, 16 KB + 2 KB RAM, full-speed USB 2.0 interface, 12-bit ADC with 16 channels (12 external, 4 internal), dual 12-bit DACs, LCD driver for up to 160 segments, and 74 GPIO pins in a 113-pin BGA package. It operates from 1.8 V to 3.6 V and targets battery-powered sensor systems and portable meters.

For engineers reviewing the MSP430F6633IZQWT datasheet, MSP430F6633IZQWT pinout, MSP430F6633IZQWT application, or MSP430F6633IZQWT equivalent, key selection criteria include USB integration, low-power RTC operation (1.1 µA in LPM3.5), 3 µs wake-up time from standby, and support for simultaneous analog sensing (ADC+DAC) and LCD display control in compact BGA form factor.

Technical Context

The MSP430F6633IZQWT implements a unified clock system with FLL stabilization, dual crystal oscillators (XT1 for 32-kHz, XT2 up to 32 MHz), and three internal sources (VLO, REFO, DCO). Its CPUXV2 core executes instructions at up to 20 MHz with constant generators for optimized code efficiency.

Peripherals are tightly integrated via a 6-channel DMA controller and shared memory map: USB buffer (512 B), backup RAM (8 B), and dedicated USB power system (3.3-V/1.8-V regulators + USB-PLL). The device supports real-time analog acquisition (200 ksps ADC with autoscan) synchronized to dual DAC outputs and LCD refresh timing.

Key Specifications

Pinout & Package

Package: 113-pin ZQW (7 mm × 7 mm BGA) with 0.5-mm pitch, RoHS-compliant, moisture sensitivity level 3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F6633IZQWT, MSP430F6634IZQWT trades DAC capability for +64 KB Flash-ideal for protocol-heavy USB devices without analog output needs-while MSP430F6636IZQWT retains all features with +128 KB Flash, enabling advanced sensor fusion or bootloader-resident firmware updates.

Availability

MSP430F6633IZQWT is available at Aetrix Electronics and suitable for smart metering, portable medical instrumentation, industrial HMI panels, and environmental data loggers requiring stable component supply across multi-year production cycles.

Supply support for MSP430F6633IZQWT 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 technologies with emphasis on power efficiency and system integration.

The MSP430F663x product line targets ultra-low-power portable measurement systems, integrating high-precision analog peripherals (ADC/DAC), USB connectivity, and LCD control into a single chip to minimize size and power in battery-operated devices.

FAQ

What is the maximum operating frequency of the MSP430F6633IZQWT?

The MSP430F6633IZQWT supports a maximum system clock frequency of 20 MHz via its digitally controlled oscillator (DCO) or external XT2 crystal up to 32 MHz. This enables real-time signal processing while maintaining ultra-low power consumption in active mode (270 µA/MHz at 8 MHz, 3.0 V). The MSP430F6633IZQWT achieves this performance without external PLL components thanks to its integrated FLL control loop.

Does the MSP430F6633IZQWT support USB device enumeration without external components?

Yes, the MSP430F6633IZQWT integrates a full-speed USB 2.0 PHY, 3.3-V and 1.8-V USB power regulators, and USB-PLL-enabling complete USB device functionality with only passive ESD protection on DP/DM lines. The MSP430F6633IZQWT uses its internal 1.5-kΩ pull-up resistor on PU.0/DP for bus enumeration, eliminating external resistors and voltage translators required by most USB-capable MCUs.

How many analog input channels does the MSP430F6633IZQWT ADC support?

The MSP430F6633IZQWT features a 12-bit ADC12_A module with 16 total input channels: 12 external analog inputs (A0–A11) and 4 internal sources (temperature sensor, supply voltage, VREF, and VMID). This configuration allows simultaneous monitoring of multiple sensors and system parameters without multiplexer hardware, and the autoscan feature enables autonomous sequencing across selected channels.

What packaging and thermal characteristics define the MSP430F6633IZQWT?

The MSP430F6633IZQWT is offered exclusively in the 113-pin ZQW BGA package (7 mm × 7 mm, 0.5-mm pitch) with a thermal resistance (θ_JA) of 35.6°C/W. Its compact footprint supports high-density PCB layouts in space-constrained applications like handheld meters, and the BGA construction provides superior thermal dissipation compared to QFP alternatives-critical for sustained USB and LCD operation.

Can the MSP430F6633IZQWT operate from a single-cell lithium battery?

Yes, the MSP430F6633IZQWT operates across 1.8 V to 3.6 V, making it compatible with single-cell Li-ion (3.0–3.7 V) or LiFePO₄ (2.5–3.65 V) batteries throughout their discharge curve. Its programmable LDO allows dynamic core voltage scaling down to 1.8 V, and LPM4.5 shutdown current of 0.3 µA ensures minimal self-discharge-enabling multi-year operation in battery-backed applications such as utility meters or remote sensors.