Texas Instruments MSP430FG4616IPZ

Overview

MSP430FG4616IPZ from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller featuring 92KB+256B flash, 4KB RAM, a 12-bit ADC with 12 channels, dual 12-bit DACs, three configurable op-amps, integrated LCD driver (up to 160 segments), and dual 16-bit timers (Timer_A3 and Timer_B7). It operates from 1.8 V to 3.6 V and targets battery-powered portable medical and electronic metering applications.

For engineers reviewing the MSP430FG4616IPZ datasheet, MSP430FG4616IPZ pinout, MSP430FG4616IPZ application, or MSP430FG4616IPZ equivalent, key selection criteria include its integrated LCD charge pump, low-power RTC-capable basic timer, hardware DMA support, and dual USCI modules (UART/IrDA/SPI/I²C) for sensor interface and display control in space-constrained designs.

Technical Context

The MSP430FG4616IPZ implements a 16-bit RISC CPU with constant generators and a digitally controlled oscillator (DCO), enabling sub-6 µs wake-up from LPM3 standby mode. Its peripheral set includes two independent 16-bit timers with capture/compare capabilities (TA3 with three registers, TB7 with seven shadow registers), supporting precise PWM generation and time-critical event sequencing.

It integrates a full-featured analog subsystem: a 12-bit ADC with internal reference and autoscan, dual synchronized 12-bit DACs with voltage outputs, three programmable op-amps (OA0–OA2) with selectable feedback configurations, and a comparator with hysteresis. The device supports both internal and external reference sources for ADC/DAC operation and features supply voltage supervisor (SVS) with programmable threshold detection.

Key Specifications

Pinout & Package

The MSP430FG4616IPZ is housed in a 100-pin LQFP (PZ) package measuring 14 mm × 14 mm, with 80 general-purpose I/O pins distributed across ten ports (P1–P10), plus dedicated analog, timer, communication, and power terminals.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430FG4617IPZ and MSP430FG4618IPZ, the MSP430FG4616IPZ provides optimal cost/performance balance for fixed-function portable meters and medical devices where 4KB RAM and 92KB flash meet requirements without over-provisioning.

Availability

MSP430FG4616IPZ 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 consistent parametric performance across production batches.

Supply support for MSP430FG4616IPZ 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 for industrial, automotive, and personal electronics markets.

The MSP430FG461x series is part of TI's ultra-low-power microcontroller portfolio, designed specifically for battery-operated measurement and display applications where extended runtime, integrated analog peripherals, and LCD support are critical.

FAQ

What is the maximum operating frequency of the MSP430FG4616IPZ?

The MSP430FG4616IPZ does not specify a maximum system clock frequency in its datasheet; instead, it uses a digitally controlled oscillator (DCO) calibrated to deliver stable operation up to 8 MHz. Performance is characterized at 1 MHz (400 µA active current), and the DCO supports dynamic frequency scaling to optimize power versus throughput. The device achieves a 125-ns instruction cycle time at its rated speed.

Does the MSP430FG4616IPZ support external crystal oscillators?

Yes, the MSP430FG4616IPZ supports two external crystal oscillators: LFXT1 (for 32.768 kHz watch crystals or standard low-frequency crystals) on XIN/XOUT pins, and XT2 (for higher-frequency standard crystals up to 8 MHz) on XT2IN/XT2OUT pins. Both are fully integrated into the clock system and can drive ACLK, SMCLK, or MCLK as needed.

How many LCD segments can the MSP430FG4616IPZ drive, and what voltage options are available?

The MSP430FG4616IPZ drives up to 160 LCD segments using its integrated LCD_A module. It supports both internal charge-pump regulation (generating VLCD from DVCC) and external voltage supply via LCDCAP and LCDREF pins. When LCDCPEN = 1, the internal charge pump is enabled, eliminating the need for external bias components - ideal for compact portable designs.

Is the MSP430FG4616IPZ pin-compatible with other members of the MSP430FG461x family?

Yes, all MSP430FG461x variants in the same package - including MSP430FG4616IPZ, MSP430FG4617IPZ, MSP430FG4618IPZ, and MSP430FG4619IPZ - share identical 100-pin LQFP (PZ) pinouts and electrical characteristics. This enables direct hardware compatibility and firmware reuse across models differing only in flash/RAM size.

What debug interface does the MSP430FG4616IPZ use, and is JTAG supported?

The MSP430FG4616IPZ supports the standard 4-wire JTAG interface (TCK, TMS, TDI/TCLK, TDO/TDI) for full-speed emulation, flash programming, and real-time debugging. It also supports Spy-Bi-Wire (2-wire JTAG) for space-constrained layouts. Both interfaces are accessible through the same physical pins and are enabled by default unless disabled via security fuse.