Texas Instruments MSP430F47193IPZR

Overview

MSP430F47193IPZR from Texas Instruments is an ultralow-power mixed-signal microcontroller designed for precision electricity metering applications. It integrates 120KB Flash, 4KB RAM, three 16-bit sigma-delta ADCs with differential PGA inputs, a 16-bit RISC CPU, four USCI modules (dual UART/IrDA/SPI and dual I²C/SPI), and an integrated LCD driver supporting up to 160 segments - enabling single-chip implementation of Class 0.2 polyphase watt-hour meters.

For engineers reviewing the MSP430F47193IPZR datasheet, MSP430F47193IPZR pinout, MSP430F47193IPZR application, or MSP430F47193IPZR equivalent, key selection criteria include its 3-channel sigma-delta ADC configuration (vs. 6/7-channel variants), 100-pin QFP package, 1.8–3.6 V supply range, active-mode current of 350 µA at 1 MHz/2.2 V, and real-time clock capability via Basic Timer.

Technical Context

The MSP430F47193IPZR implements a 16-bit RISC CPU with constant generators and 16 registers, achieving 62.5-ns instruction cycle time. Its SD16_A module supports three independent 16-bit sigma-delta ADCs, each with programmable gain amplifier (PGA) and differential input pairs (A0.0±, A1.0±, A2.0±), directly mapped to dedicated analog pins on the 100-pin PZ package.

Power management includes five software-selectable low-power modes (LPM0–LPM4), wake-up from standby in <6 µs, brownout detection, and supply voltage supervisor with programmable threshold. The device uses dual crystal oscillators (XT1 for ACLK, XT2 for MCLK/SMCLK) and integrates DMA for autonomous data transfer between ADC results and memory without CPU intervention.

Key Specifications

Pinout & Package

Package: 100-pin plastic quad flatpack (QFP), PZ package, surface-mount, 0.5 mm pitch, JEDEC MS-026AC compliant. Thermal pad not present; requires standard reflow profile per TI SNOA403.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F47183IPZR and MSP430F47196IPZR, the MSP430F47193IPZR offers optimal balance of Flash capacity and cost for single-phase metering, with identical 100-pin QFP packaging and full peripheral compatibility - simplifying design reuse across product tiers.

Availability

MSP430F47193IPZR is available at Aetrix Electronics and suitable for single-phase electricity meters, portable power analyzers, and smart grid endpoints requiring stable component supply, long-term lifecycle support, and TI-qualified metrology-grade silicon.

Supply support for MSP430F47193IPZR 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 power efficiency, reliability, and system-level integration.

The MSP430F471xx product line is engineered specifically for electricity metering applications, integrating metrology-optimized ADCs, RTC, LCD drivers, and ultra-low-power operation to meet IEC 62053 and ANSI C12 standards without external components.

FAQ

What is the maximum sampling rate supported by the sigma-delta ADCs in MSP430F47193IPZR?

The MSP430F47193IPZR's SD16_A module supports up to 100 kSPS effective sampling rate per channel when configured with minimum oversampling ratio and no digital filtering. Each of the three 16-bit sigma-delta ADCs operates independently with programmable conversion delay and hardware-triggered start, enabling synchronized acquisition across voltage and current channels in MSP430F47193IPZR-based meter designs.

Does MSP430F47193IPZR support hardware-accelerated cryptographic operations?

No, the MSP430F47193IPZR does not include dedicated cryptographic accelerators such as AES or SHA engines. Security relies on software-based implementations and the programmable security fuse that prevents Flash read-out. For applications requiring hardware crypto, TI recommends migrating to the MSP430FR59xx or MSP432P4xx families - MSP430F47193IPZR focuses on metrology precision and ultra-low-power operation instead.

Can MSP430F47193IPZR drive a 4-mux LCD with 160 segments using only internal resources?

Yes, MSP430F47193IPZR integrates LCD_A module supporting up to 160 segments with 1–4 multiplexing, internal charge pump, and programmable contrast control. It requires only external capacitors (LCDCAP, LCDREF) and no external bias generator. The device drives all segments and commons (COM0–COM3) directly from P5.x and P10.x/P9.x/P8.x/P7.x/P4.x pins - fully enabling Class 0.2 meter displays without additional ICs in MSP430F47193IPZR systems.

What is the function of the LCDCAP/R33 pin on MSP430F47193IPZR?

The LCDCAP/R33 pin on MSP430F47193IPZR serves as the connection point for the external capacitor required by the internal LCD charge pump circuit. It also functions as the most positive analog LCD voltage level (V1) output. Proper 2.2 µF ceramic capacitor placement between LCDCAP/R33 and AVSS is mandatory for stable LCD bias generation - omission causes display contrast collapse or segment dropout in MSP430F47193IPZR meter applications.

How many USCI modules does MSP430F47193IPZR include, and what protocols do they support?

MSP430F47193IPZR includes 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 concurrent communication with optical probe (UART), PLC modem (SPI), and external EEPROM (I²C) - all without CPU overhead due to automatic byte handling and DMA trigger capability in MSP430F47193IPZR firmware.