Texas Instruments MSP430F47167IPZ

Overview

MSP430F47167IPZ from Texas Instruments is an ultralow-power mixed-signal microcontroller designed for poly-phase electricity metering, featuring a 16-bit RISC CPU, 92KB Flash, 4KB RAM, seven 16-bit sigma-delta ADCs with differential PGA inputs, integrated LCD driver for up to 160 segments, and four USCI modules supporting UART, IrDA, SPI, and I²C.

For engineers reviewing the MSP430F47167IPZ datasheet, MSP430F47167IPZ pinout, MSP430F47167IPZ application, or MSP430F47167IPZ equivalent, key selection considerations include its 7-channel sigma-delta ADC architecture, 100-pin QFP package with dedicated analog input pairs (A0.0± through A6.0±), real-time clock capability via Basic Timer, and support for E-meter reference designs per SLAA409.

Technical Context

The MSP430F47167IPZ implements a 16-bit RISC CPU with constant generators and 16 general-purpose registers, enabling single-cycle register operations and optimized code efficiency. Its FLL+ module provides fast wake-up (<6 µs) from LPM4 and stable clock generation across 1.8–3.6 V supply.

It integrates three independent DMA channels, dual 16-bit timers (Timer_A3 and Timer_B3) with capture/compare and shadow registers, and a hardware 32×32 multiplier for metering math acceleration. The SD16_A module supports programmable gain amplification and differential sampling on all seven ADC channels.

Key Specifications

Pinout & Package

Package: 100-pin plastic quad flatpack (QFP), PZ package, surface-mount, 0.5 mm pitch. Designed for industrial meter PCB layouts with thermal pad grounding and analog/digital supply separation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F47167IPZ, the MSP430F47177IPZ adds RAM headroom for dynamic data structures without changing layout, while the MSP430F47187IPZ provides scalable Flash for certified firmware variants - both retain identical ADC performance and metrology peripheral configuration.

Availability

MSP430F47167IPZ is available at Aetrix Electronics and suitable for smart metering, industrial energy monitoring, and revenue protection systems requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for MSP430F47167IPZ 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 expertise in precision metrology and low-power design.

The MSP430F471xx product line was engineered specifically for electricity metering applications, integrating sigma-delta ADCs, LCD drivers, and metrology-optimized peripherals to meet IEC 62053 and ANSI C12 standards.

FAQ

What is the maximum number of simultaneous analog input channels supported by the MSP430F47167IPZ?

The MSP430F47167IPZ supports seven independent 16-bit sigma-delta ADC channels (A0.0± through A6.0±), each with differential inputs and programmable gain. All seven channels can sample concurrently, enabling full 3-phase + neutral + auxiliary measurements without external multiplexing or timing skew - a core requirement for IEC 62053-22 Class 0.2 meters.

Does the MSP430F47167IPZ include hardware support for real-time clock functionality?

Yes, the MSP430F47167IPZ implements real-time clock (RTC) capability via its Basic Timer module, which can be clocked from a 32.768 kHz crystal (XT1) connected to XIN/XOUT pins. The RTC operates independently in LPM4 mode, maintaining accurate timekeeping for tariff switching and event logging while consuming only 1.1 µA in standby.

What package type and pin count does the MSP430F47167IPZ use?

The MSP430F47167IPZ uses a 100-pin plastic quad flatpack (QFP) package, designated PZ. It provides 68 general-purpose I/O pins, dedicated analog input terminals (A0.0± to A6.0±), LCD segment/common drivers (up to 160 segments), and separate analog/digital supply pins (AVCC/AVSS, DVCC1/DVCC2, DVSS1/DVSS2) for noise isolation in metrology designs.

Can the MSP430F47167IPZ drive an LCD display directly without external components?

Yes, the MSP430F47167IPZ integrates a programmable LCD_A driver supporting up to 160 segments and 4 commons. It includes internal charge pumps, contrast control registers, and segment mapping logic - enabling direct connection to segmented LCD glass used in utility meters without external bias generators or driver ICs.

What communication interfaces are available on the MSP430F47167IPZ for metering applications?

The MSP430F47167IPZ features four Universal Serial Communication Interface (USCI) modules: USCI_A0 and USCI_A1 support UART, IrDA, and SPI; USCI_B0 and USCI_B1 support I²C and SPI. This enables simultaneous optical probe (UART), PLC/HAN (I²C), and M-Bus (SPI) interfaces - meeting EN 13757-3/4 and DLMS/COSEM requirements out of the box.