Texas Instruments MSP430F5634IZQWT

Overview

MSP430F5634IZQWT from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller with 192 KB flash, 16 KB + 2 KB RAM, USB 2.0 full-speed interface, dual USCI modules (UART/IrDA/SPI/I²C), 12-bit ADC with 16 channels, and four 16-bit timers. It operates from 1.8 V to 3.6 V and targets battery-powered sensor systems requiring RTC backup, fast wake-up (3 µs), and integrated analog peripherals.

For engineers reviewing the MSP430F5634IZQWT datasheet, MSP430F5634IZQWT pinout, MSP430F5634IZQWT application, or MSP430F5634IZQWT equivalent, this page delivers verified technical context, exact package mapping (MicroStar Junior BGA, 113-pin), confirmed low-power mode currents (1.8 µA in LPM3), USB PHY integration, and validated alternative options for migration or sourcing continuity.

Technical Context

The MSP430F5634IZQWT implements a 16-bit RISC CPUXV2 core with constant generators and hardware multiplier supporting 32-bit operations. Its unified clock system integrates FLL, VLO, REFO, XT1 (32 kHz), and XT2 (up to 32 MHz) with programmable LDO core regulation.

Peripherals include two USCIs (USCI_A0/A1 for UART/IrDA/SPI; USCI_B0/B1 for I²C/SPI), USB 2.0 full-speed PHY with integrated 3.3-V/1.8-V power system and USB-PLL, 12-bit ADC12_A with autoscan and internal reference (1.5/2.0/2.5 V), and RTC_B with battery backup support - all confirmed for the MSP430F5634 variant per Figure 4-2 and Table 6-1.

Key Specifications

Pinout & Package

Package: MicroStar Junior™ BGA (ZQW), 113-pin, 7 mm × 7 mm footprint. Pinout conforms to TI's official ZQW mechanical drawing for MSP430F563x family (SLAS650G, Fig. 7-4). All signals validated against functional block diagram for MSP430F5634 (Fig. 4-2) and signal descriptions in Section 7.2.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar ultra-low-power mixed-signal microcontroller applications.

Compared with MSP430F5634IZQWT, the MSP430F5635IZQWT offers greater firmware capacity without altering power profile or peripheral set, while the MSP430F5633IZQWT reduces cost and die size for simpler applications - all three share identical ZQW package, USB implementation, and low-power architecture.

Availability

MSP430F5634IZQWT is available at Aetrix Electronics and suitable for analog sensor systems, digital thermostats, and hand-held meters requiring stable component supply across industrial and medical OEM programs.

Supply support for MSP430F5634IZQWT 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 reliability.

The MSP430F563x product line targets ultra-low-power portable measurement and sensing applications, integrating USB, high-resolution analog peripherals, and robust real-time control capabilities in a single chip.

FAQ

What is the maximum system clock frequency supported by the MSP430F5634IZQWT?

The MSP430F5634IZQWT supports up to 20 MHz system clock frequency via its FLL-controlled DCO or external high-frequency crystal (XT2) up to 32 MHz. This is confirmed in the device description and functional block diagram (Figure 4-2), enabling real-time processing for USB, ADC, and motor control tasks without performance bottlenecks.

Does the MSP430F5634IZQWT include a hardware multiplier?

Yes, the MSP430F5634IZQWT includes a 32-bit hardware multiplier (MPY32) as part of its CPUXV2 core. This unit accelerates arithmetic-intensive operations such as PID control, FFT preprocessing, and cryptographic primitives - directly reducing CPU cycles and active-mode power consumption compared to software emulation.

What USB speed and compliance level does the MSP430F5634IZQWT support?

The MSP430F5634IZQWT supports USB 2.0 full-speed (12 Mbps) with integrated PHY, USB-PLL, and dual-voltage power system (3.3 V and 1.8 V). It complies with USB 2.0 specification for device enumeration, descriptor handling, and endpoint management - verified in the USB section of SLAS650G and functional block diagram (Figure 4-2).

How many I/O pins does the MSP430F5634IZQWT provide in the ZQW package?

The MSP430F5634IZQWT provides 74 general-purpose I/O pins in the MicroStar Junior BGA (ZQW) package, as documented in Table 6-1 (Device Comparison) and confirmed across functional diagrams (Figures 4-1 to 4-3). These include port groups P1–P9 with interrupt capability and peripheral multiplexing.

Is the MSP430F5634IZQWT pin-compatible with other MSP430F563x devices in the ZQW package?

Yes, the MSP430F5634IZQWT is pin-compatible with all other MSP430F563x variants offered in the ZQW package (e.g., MSP430F5635IZQWT, MSP430F5633IZQWT), sharing identical pin count, physical layout, and signal assignment per TI's ZQW mechanical drawing and signal descriptions in Section 7.2 of SLAS650G.