Texas Instruments MSP430F47196IPZR

Overview

MSP430F47196IPZR from Texas Instruments is an ultralow-power mixed-signal microcontroller designed for polyphase electricity metering applications. It integrates six 16-bit sigma-delta ADCs with differential PGA inputs, 120KB flash, 4KB RAM, integrated LCD driver (160 segments), four USCI modules (UART/IrDA/SPI/I²C), and operates from 1.8 V to 3.6 V.

For engineers reviewing the MSP430F47196IPZR datasheet, MSP430F47196IPZR pinout, MSP430F47196IPZR application, or MSP430F47196IPZR equivalent, key selection criteria include ADC channel count, LCD segment support, low-power mode timing (sub-6 µs wake-up), sigma-delta resolution, and QFP-100 package compatibility with metering reference designs.

Technical Context

The MSP430F47196IPZR implements a 16-bit RISC CPU with 62.5-ns instruction cycle time, three-channel DMA, and dual 16-bit timers (Timer_A3 and Timer_B3) with shadow registers. Its SD16_A module supports six independent sigma-delta converters, each with programmable gain and differential input pairs - optimized for simultaneous voltage/current sampling in Class 0.2/0.5 energy meters.

It features dual crystal oscillator support (XT1 for RTC, XT2 for high-frequency operation), hardware multiplier (32×32), brownout detector, and supply voltage supervisor with programmable threshold. The device uses JTAG/EEM for on-chip emulation and supports serial bootloader without external programming voltage.

Key Specifications

Pinout & Package

Package: 100-pin Plastic Quad Flatpack (QFP), PZ package, 0.5 mm pitch, body size 14 mm × 14 mm.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F47186IPZR and MSP430F47197IPZR, the MSP430F47196IPZR offers optimal balance of flash capacity (120KB), RAM (4KB), and six metrology-grade ADCs - making it the preferred choice for cost-sensitive, high-volume Class 0.5 smart meters where seventh channel is unnecessary.

Availability

MSP430F47196IPZR is available at Aetrix Electronics and suitable for smart electricity metering, industrial energy monitoring, and AMI endpoint development requiring stable component supply and long-term lifecycle assurance.

Supply support for MSP430F47196IPZR 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 and embedded processing technologies, with decades of expertise in precision metrology and low-power design.

The MSP430F471xx series was engineered specifically for electricity metering applications, integrating sigma-delta ADCs, LCD drivers, and ultra-low-power modes to meet IEC 62053 and ANSI C12 standards out-of-the-box.

FAQ

What is the maximum sampling rate supported by each sigma-delta ADC in the MSP430F47196IPZR?

Each of the six SD16_A converters in the MSP430F47196IPZR supports up to 128 ksps effective sampling rate with 16-bit resolution and >90 dB SNR. This enables oversampling for noise shaping and supports IEC 62053-22 Class 0.2 accuracy requirements when paired with appropriate external anti-aliasing filters and shunt resistors.

Does the MSP430F47196IPZR support hardware-based encryption for secure firmware updates?

No, the MSP430F47196IPZR does not include dedicated cryptographic accelerators or hardware AES engines. Security relies on software-implemented protocols and the programmable code protection fuse. For secure boot and OTA updates, external secure elements (e.g., TI's TISCI-compliant companion ICs) are recommended alongside MSP430F47196IPZR.

Can the MSP430F47196IPZR drive a 4-mux LCD with full 160-segment coverage?

Yes, the MSP430F47196IPZR's integrated LCD_A module supports up to 160 segments in 1-, 2-, 3-, or 4-mux configurations. In 4-mux mode, it drives 40 commons (COM0–COM3) and 40 segments per common - fully utilizing all 160 segments with built-in contrast control and charge pump regulation.

What is the function of pins A3.0+ and A3.0− on the MSP430F47196IPZR?

A3.0+ and A3.0− are the fourth differential analog input pair for the SD16_A sigma-delta ADC subsystem. They are active and functional on the MSP430F47196IPZR (x6 variant), unlike the x3 family. Unused analog input pins must be shorted together and connected to AVSS per TI's layout guidance to prevent noise coupling.

Is the MSP430F47196IPZR pin-compatible with other devices in the MSP430F471xx family?

Yes, all MSP430F471xx devices in the PZ package - including MSP430F47196IPZR, MSP47186IPZR, and MSP430F47197IPZR - share identical 100-pin QFP footprints and pinouts. This allows hardware reuse across metering variants while differing only in flash/RAM allocation and ADC count (3/6/7 channels).