Texas Instruments MSP430FG4618IZQWT

Overview

MSP430FG4618IZQWT from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller featuring 116KB+256B flash, 8KB RAM, a 12-bit ADC with 12 channels, dual 12-bit DACs, three configurable op amps, integrated 160-segment LCD driver with regulated charge pump, and dual 16-bit timers (Timer_A3 and Timer_B7). It operates from 1.8 V to 3.6 V and targets portable medical devices and electronic metering systems requiring long battery life and analog signal conditioning.

For engineers reviewing the MSP430FG4618IZQWT datasheet, MSP430FG4618IZQWT pinout, MSP430FG4618IZQWT application, or MSP430FG4618IZQWT equivalent, key selection considerations include its MicroStar Junior™ BGA-113 package, 80 I/O pins with LCD segment control, integrated analog peripherals (ADC/DAC/op-amps), real-time clock capability, and support for UART, SPI, I²C, and IrDA via two serial interfaces (USCI_A0 and USCI_B0).

Technical Context

The MSP430FG4618IZQWT implements a 16-bit RISC CPU with constant generators and a digitally controlled oscillator (DCO), enabling wake-up from standby mode in under 6 µs. Its architecture integrates three-channel DMA, hardware multiplier, and FLL+ for clock stabilization across multiple oscillators (LFXT1, XT2, DCO).

It supports simultaneous analog acquisition and processing via the 12-bit ADC with internal reference and autoscan, synchronized dual DAC outputs for waveform generation, and programmable op-amp configurations (inverting/non-inverting, gain control) - all operating within five low-power modes optimized for battery-powered measurement applications.

Key Specifications

Pinout & Package

Package: MicroStar Junior™ BGA-113 (7 mm × 7 mm), ball pitch 0.5 mm. Pinout validated per TI SLAS508K Rev. May 2020, Figure 4-2 and Table 4-1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430FG4619IZQW and MSP430FG4617IZQW, the MSP430FG4618IZQWT uniquely balances high flash (116KB) and ample RAM (8KB), making it optimal for applications requiring both complex algorithms and real-time data buffering - such as multi-sensor medical diagnostics or advanced energy metering with harmonic analysis.

Availability

MSP430FG4618IZQWT is available at Aetrix Electronics and suitable for portable medical devices, electronic meters, and industrial sensor nodes requiring stable component supply, long-term lifecycle support, and verified ultra-low-power performance.

Supply support for MSP430FG4618IZQWT 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 specializing in analog, embedded processing, and connectivity technologies with leadership in low-power design and industrial-grade reliability.

The MSP430FG461x product line was designed for ultra-low-power portable measurement applications - integrating high-precision analog peripherals, LCD support, and robust timing subsystems into a single chip for battery-operated instrumentation.

FAQ

What is the package type and pin count of the MSP430FG4618IZQWT?

The MSP430FG4618IZQWT uses the MicroStar Junior™ BGA-113 package with 113 solder balls in a 7 mm × 7 mm footprint and 0.5 mm pitch. This package supports 80 general-purpose I/O pins plus dedicated analog, power, clock, and debug signals - confirmed in TI's SLAS508K datasheet, Section 4.1 and Table 3-1.

Does the MSP430FG4618IZQWT support real-time clock (RTC) functionality?

Yes, the MSP430FG4618IZQWT includes a Basic Timer module with real-time clock capability, supporting calendar/timekeeping using either a 32.768-kHz crystal or the internal very-low-power oscillator (VLO). This feature is documented in Section 1.1 and Figure 1-1 of the SLAS508K datasheet.

Can the MSP430FG4618IZQWT drive a 160-segment LCD without external components?

Yes, the MSP430FG4618IZQWT integrates an LCD_A module with a regulated charge pump, enabling direct drive of up to 160 segments using only an external capacitor on the LCDCAP pin. No external voltage boosters or bias resistors are required - as specified in Section 1.1 and Table 4-1 of the SLAS508K datasheet.

What communication interfaces are available on the MSP430FG4618IZQWT?

The MSP430FG4618IZQWT provides two independent universal serial interfaces: USCI_A0 (supporting UART, IrDA, SPI) and USCI_B0 (supporting SPI and I²C), plus USART1 (UART/SPI). These allow concurrent use - for example, UART to host, I²C to sensor, and SPI to display - as detailed in Sections 1.1 and 4.2 of SLAS508K.

Is the MSP430FG4618IZQWT pin-compatible with other devices in the MSP430FG461x family?

Yes, all MSP430FG461x devices in the ZQW package - including MSP430FG4616IZQW, MSP430FG4617IZQW, MSP430FG4618IZQW, and MSP430FG4619IZQW - share identical pinouts and package dimensions. This allows firmware reuse and hardware scalability across flash/RAM variants, per TI's Device Comparison Table (Table 3-1) and Pin Diagram (Figure 4-2).