Texas Instruments MSP430F6658IZQWT

Overview

MSP430F6658IZQWT from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller featuring 384 KB flash, 32 KB + 2 KB RAM, USB 2.0 full-speed interface, 12-bit ADC (200 ksps, 16 channels), dual 12-bit DACs, integrated LCD driver (160 segments), and four 16-bit timers - deployed in battery-powered sensor nodes and portable metering systems requiring sub-2 µA LPM3 standby current and 3 µs wake-up.

For engineers reviewing the MSP430F6658IZQWT datasheet, MSP430F6658IZQWT pinout, MSP430F6658IZQWT application, or MSP430F6658IZQWT equivalent, key selection criteria include USB PHY integration, MicroStar Junior BGA (113-pin) package compatibility, LPM3.5 RTC retention at 1.1 µA, 74 GPIO count, and absence of integrated LDO (unlike F645x/F535x variants).

Technical Context

The MSP430F6658IZQWT implements a 16-bit RISC CPUXV2 core with constant generators and hardware multiplier supporting 32-bit operations. Its unified clock system includes FLL-controlled DCO, VLO, REFO, XT1 (32 kHz), and XT2 (up to 32 MHz), enabling precise timing across active and low-power modes.

Power management integrates supply voltage supervision (SVS), brownout reset (BOR), and programmable core regulation via external LDO control - distinct from F645x/F535x families that embed an on-chip LDO. The device supports six low-power modes (LPM0–LPM4.5), with LPM3.5 retaining RTC + crystal at 1.1 µA and LPM4.5 achieving 0.45 µA shutdown.

Key Specifications

Pinout & Package

MicroStar Junior™ BGA package (ZQW), 113-pin, 7 mm × 7 mm body size, 0.5-mm pitch. Pin mapping conforms to TI's standardized ZQW footprint for MSP430F665x series.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F6658IZQW, MSP430F6659IZQW offers higher memory headroom without altering power profile or peripheral set, while MSP430F5658IZQW removes LCD overhead and simplifies power design at the expense of display capability - both require no PCB changes due to identical ZQW pinout and thermal footprint.

Availability

MSP430F6658IZQW is available at Aetrix Electronics and suitable for smart metering, portable medical devices, and industrial sensor nodes requiring stable component supply and long-term lifecycle support.

Supply support for MSP430F6658IZQW 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 ultra-low-power MCU innovation.

The MSP430F665x product line targets battery-critical applications demanding integrated USB, high-resolution analog peripherals, and sub-microamp sleep modes - optimized for portable instrumentation and energy infrastructure.

FAQ

What is the package type and pin count of the MSP430F6658IZQW?

The MSP430F6658IZQW uses the MicroStar Junior™ BGA (ZQW) package with 113 pins and a 7 mm × 7 mm body size. This package is designed for space-constrained portable applications and shares mechanical and thermal characteristics with other ZQW-orderable MSP430F665x/F645x/F565x devices. Pin compatibility is confirmed across the ZQW family, including MSP430F6659IZQW and MSP430F5658IZQW.

Does the MSP430F6658IZQW include an integrated LDO regulator?

No, the MSP430F6658IZQW does not integrate an LDO regulator. Unlike the MSP430F645x and MSP430F535x series, it relies on an external LDO controlled via dedicated PU.0/PU.1 pins. This architecture allows designers to select optimal external regulators for specific voltage and current requirements, improving flexibility in power system design.

What USB capabilities does the MSP430F6658IZQW support?

The MSP430F6658IZQW supports full-speed USB 2.0 (12 Mbps) with an integrated PHY, 3.3-V/1.8-V USB power system, USB-PLL, and eight bidirectional endpoints. It handles standard USB classes including CDC (virtual COM port), HID, and MSC without external transceivers - verified in TI's MSP430 USB Developer's Package and supported by TI's USB stack v4.x.

How many I/O pins does the MSP430F6658IZQW provide, and what are their key electrical features?

The MSP430F6658IZQW provides 74 general-purpose I/O pins distributed across ports P1–P9 and PJ. Each pin supports Schmitt-trigger inputs, programmable drive strength (full/reduced), interrupt capability, and configurable pull-up/pull-down. Electrical specs include ±2 mA full-drive output at 3 V and leakage <50 nA in LPM4 - validated per Section 8.10–8.12 of SLAS700E.

What is the lowest power consumption mode available on the MSP430F6658IZQW, and what functions remain active?

The lowest power mode is LPM4.5, drawing 0.45 µA at 3.0 V with all clocks and RAM disabled. In this state, only the RST/NMI pin and supply supervisor remain functional - no RTC, no I/O retention, no wake-up sources except external reset. For RTC-backed operation, LPM3.5 draws 1.1 µA while maintaining RTC with 32-kHz crystal and 8-byte backup RAM.