Texas Instruments MSP430F47167IPZR

Overview

MSP430F47167IPZR from Texas Instruments is an ultralow-power mixed-signal microcontroller designed for polyphase electricity metering. It integrates seven 16-bit sigma-delta ADCs with differential PGA inputs, 92KB Flash/4KB RAM, a 16-bit RISC CPU, integrated LCD driver (160 segments), four USCI modules (UART/IrDA/SPI/I²C), and real-time clock capability. It operates from 1.8 V to 3.6 V and supports active-mode current of 350 µA at 1 MHz.

For engineers reviewing the MSP430F47167IPZR datasheet, MSP430F47167IPZR pinout, MSP430F47167IPZR application, or MSP430F47167IPZR equivalent, key selection criteria include sigma-delta ADC channel count (7), LCD segment drive capacity (160), QFP-100 package compatibility, and metering-specific peripherals including SD16_A input pairs A0–A6 and SVS/brownout protection for grid-connected reliability.

Technical Context

The MSP430F47167IPZR implements a 16-bit RISC CPU with constant generators and 16 general-purpose registers, enabling single-cycle register operations. Its FLL+ digitally controlled oscillator achieves sub-6 µs wake-up from standby mode, supporting rapid response in energy measurement events.

It features three-channel internal DMA, dual 16-bit timers (Timer_A3 and Timer_B3 with shadow registers), and a dedicated SD16_A module with seven independent sigma-delta converters-each with programmable gain and differential input pairs-optimized for simultaneous voltage/current sampling in Class 0.2/0.5 metering applications.

Key Specifications

Pinout & Package

Package: 100-pin plastic quad flatpack (QFP), surface-mount, RoHS-compliant, thermal pad not included. Pin pitch: 0.5 mm. Body size: 14 mm × 14 mm.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F47167IPZR, the MSP430F47177IPZR offers double RAM for enhanced algorithm buffering, while the MSP430F47187IPZR adds 24 KB Flash for expanded firmware scope-both retain identical ADC performance, LCD drive, and QFP-100 footprint for drop-in scalability.

Availability

MSP430F47167IPZR is available at Aetrix Electronics and suitable for smart metering, revenue-grade monitoring, and grid-edge sensing applications requiring stable component supply, long-term lifecycle assurance, and TI-qualified production traceability.

Supply support for MSP430F47167IPZR 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 system-level reliability.

The MSP430F471xx product line is engineered specifically for precision electricity metering, integrating metrology-grade sigma-delta ADCs, RTC, LCD drivers, and low-power operation to meet IEC 62053 and ANSI C12 compliance requirements.

FAQ

What is the maximum number of simultaneous analog input channels supported by the MSP430F47167IPZR?

The MSP430F47167IPZR supports seven independent 16-bit sigma-delta analog-to-digital converters (SD16_A), each with differential PGA inputs. This allows true simultaneous sampling across seven analog input pairs (A0.0± through A6.0±), enabling full 3-phase + neutral + auxiliary sensor acquisition without time-division multiplexing. All seven channels are accessible in the MSP430F47167IPZR variant.

Does the MSP430F47167IPZR include an integrated real-time clock (RTC)?

Yes, the MSP430F47167IPZR integrates a Basic Timer module with real-time clock functionality. It supports calendar mode (year/month/day/hour/minute/second), alarm interrupts, and battery-backed operation when supplied from a separate low-power source. This RTC meets time-stamping requirements for IEC 62056-21 and ANSI C12.1 revenue metering standards.

What package type and pin count does the MSP430F47167IPZR use?

The MSP430F47167IPZR is housed in a 100-pin plastic quad flatpack (PZ package), with 0.5 mm pitch and 14 mm × 14 mm body dimensions. It is RoHS-compliant and designed for surface-mount reflow assembly. Pin functions include 68 GPIOs, seven SD16_A analog input pairs, dual crystal oscillator inputs (XT1/XT2), and dedicated LCD segment/Common outputs.

Can the MSP430F47167IPZR drive a 160-segment LCD directly without external components?

Yes, the MSP430F47167IPZR includes an integrated LCD_A peripheral capable of driving up to 160 segments with software-configurable bias and contrast control. It supports static, 2-, 3-, and 4-mux configurations and provides dedicated pins for COM0–COM3 and segments S0–S39. No external LCD bias generator or segment drivers are required for standard meter display implementations.

What low-power modes are available on the MSP430F47167IPZR, and what is the lowest current draw?

The MSP430F47167IPZR supports five software-selectable low-power modes (LPM0–LPM4). In LPM4 (full oscillator stop), it draws only 0.2 µA while retaining full 4 KB RAM content. Wake-up from LPM4 to active mode occurs in less than 6 µs via interrupt, making it ideal for battery-backed metering applications requiring ultra-low quiescent current between measurement cycles.