Texas Instruments MSP430F47197IPZR

Overview

MSP430F47197IPZR from Texas Instruments is an ultralow-power mixed-signal microcontroller designed for poly-phase electricity metering applications. It integrates 120KB Flash, 4KB RAM, seven 16-bit sigma-delta ADCs with differential PGA inputs, a 16-bit RISC CPU, four USCI modules (dual UART/IrDA/SPI + dual I²C/SPI), and an integrated LCD driver supporting up to 160 segments.

For engineers reviewing the MSP430F47197IPZR datasheet, MSP430F47197IPZR pinout, MSP430F47197IPZR application, or MSP430F47197IPZR equivalent, key selection considerations include its 7-channel high-precision ADC architecture, 100-pin QFP package with dedicated analog input pairs (A0.0± through A6.0±), real-time clock capability, and support for E-meter reference designs per SLAA409.

Technical Context

The MSP430F47197IPZR implements a 16-bit RISC CPU with constant generators and 62.5-ns instruction cycle time, paired with three-channel DMA for efficient data movement between peripherals and memory. Its SD16_A module provides seven independent 16-bit sigma-delta converters, each with programmable gain and differential inputs-enabling simultaneous sampling of voltage and current channels in multi-element watt-hour meters.

Power management is centered on five software-selectable low-power modes, with wake-up from standby in under 6 µs. The device uses dual supply domains (DVCC/DVSS and AVCC/AVSS), includes a hardware multiplier, brownout detector, and supply voltage supervisor with programmable threshold-ensuring robust operation in utility-grade metering environments.

Key Specifications

Pinout & Package

Package: 100-pin plastic quad flatpack (QFP), PZ package, RoHS-compliant, -40°C to +85°C operating range.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F47196IPZR and MSP430F47187IPZR, the MSP430F47197IPZR uniquely balances maximum Flash (120KB) and full 7-channel ADC capability-making it optimal for future-proofed, feature-rich poly-phase meter designs requiring both code space and analog channel density.

Availability

MSP430F47197IPZR is available at Aetrix Electronics and suitable for smart electricity metering, industrial power monitoring, and energy gateway applications requiring stable component supply and long-term lifecycle support.

Supply support for MSP430F47197IPZR 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 for industrial, automotive, and energy applications.

The MSP430F471xx product line is engineered specifically for high-accuracy electricity metering, integrating metrology-grade ADCs, real-time clocks, and low-power operation to meet IEC 62053 and ANSI C12 standards.

FAQ

What is the ADC resolution and architecture of the MSP430F47197IPZR?

The MSP430F47197IPZR features seven independent 16-bit sigma-delta analog-to-digital converters (SD16_A) with differential programmable-gain amplifier inputs. Each channel supports 16-bit effective resolution at 128–256 SPS with built-in offset/gain calibration registers-optimized for precision metrology in electricity meters per IEC 62053-22 Class 0.5 requirements.

Does the MSP430F47197IPZR support real-time clock functionality?

Yes, the MSP430F47197IPZR includes a Basic Timer module with real-time clock (RTC) capability. It supports calendar mode with seconds, minutes, hours, day-of-week, date, month, and year registers, and can operate from the 32.768-kHz ACLK crystal-even in LPM3/LPM4 low-power modes-enabling accurate time-stamped load profiling.

How many USCI modules does the MSP430F47197IPZR integrate, and what protocols do they support?

The MSP430F47197IPZR integrates four Universal Serial Communication Interface (USCI) modules: USCI_A0 and USCI_A1 support enhanced UART with auto-baudrate detection and IrDA encoding/decoding; USCI_B0 and USCI_B1 support I²C and synchronous SPI. This enables dual isolated communication paths-for example, optical port + RS-485-without external transceivers.

What is the package type and pin count of the MSP430F47197IPZR?

The MSP430F47197IPZR is housed in a 100-pin plastic quad flatpack (PZ package), with exposed pad for thermal dissipation. It features a 0.5-mm pitch, 14 mm × 14 mm body size, and operates across –40°C to +85°C ambient temperature-meeting industrial metering environmental requirements.

Can the MSP430F47197IPZR drive an LCD display directly?

Yes, the MSP430F47197IPZR includes an integrated LCD_A peripheral supporting up to 160 segments with static, 2-, 3-, or 4-mux configurations. It provides programmable contrast control, internal charge pump, and segment/common outputs-eliminating need for external LCD bias ICs in meter display subsystems.