Texas Instruments MSP430F6736AIPZ

Overview

MSP430F6736AIPZ from Texas Instruments is a 16-bit ultra-low-power mixed-signal microcontroller designed for precision energy metering applications. It integrates three 24-bit sigma-delta ADCs (SD24_B), a 10-bit 200-ksps ADC (ADC10_A), an integrated LCD driver supporting up to 320 segments in 8-mux mode, and a real-time clock with crystal offset calibration - all in a 100-pin LQFP package operating from 1.8 V to 3.6 V.

For engineers reviewing the MSP430F6736AIPZ datasheet, MSP430F6736AIPZ pinout, MSP430F6736AIPZ application, or MSP430F6736AIPZ equivalent, key selection criteria include its triple 24-bit SD-ADC architecture for simultaneous voltage/current/neutral measurement, RTC-backed metering accuracy, low-power standby current of 1.7 µA (LPM3), and support for I²C, UART, SPI, and IrDA via four eUSCI modules.

Technical Context

The MSP430F6736AIPZ implements a unified clock system with FLL stabilization, VLO and REFO internal sources, and 32-kHz XT1 crystal support for precise timing. Its power management includes a programmable LDO core regulator, supply supervision, brownout reset, and dual auxiliary supplies for isolated backup subsystem operation.

Peripherals are organized around a 25-MHz CPUXV2 core with hardware multiplier, three-channel DMA, CRC16 engine, and port mapping controller enabling flexible peripheral routing. The device supports full RAM retention in LPM3/LPM4 modes and wakes from standby in 3 µs (typical), enabling rapid response in metering interrupt events.

Key Specifications

Pinout & Package

Package: 100-pin LQFP (PZ), 14 mm × 14 mm body size, surface-mount, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F6735AIPZ and MSP430F6726AIPZ, the MSP430F6736AIPZ uniquely delivers full metrology feature set - triple SD-ADC, integrated LCD, and 8 KB RAM - in a single drop-in-capable 100-pin LQFP, enabling highest-accuracy single-phase meter designs without peripheral compromises.

Availability

MSP430F6736AIPZ is available at Aetrix Electronics and suitable for smart electricity meters, utility grid sensor nodes, and portable power quality analyzers requiring stable component supply, long-term lifecycle support, and traceable sourcing for industrial deployment.

Supply support for MSP430F6736AIPZ 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 company specializing in analog and embedded processing technologies, with leadership in low-power microcontrollers and precision analog signal chains.

The MSP430F673xA product line is engineered specifically for revenue-grade energy metering, integrating metrology-grade ADCs, RTC, LCD, and communication peripherals into a single ultra-low-power SoC architecture.

FAQ

What is the maximum sampling rate supported by the SD24_B ADCs in MSP430F6736AIPZ?

The MSP430F6736AIPZ SD24_B module supports up to 8 kSPS per channel with 24-bit resolution and programmable gain amplifier (PGA). This enables high-fidelity waveform capture for harmonic analysis and transient detection in single-phase metering applications, meeting IEC 61000-4-30 Class A requirements when configured with appropriate external anti-aliasing filters.

Does MSP430F6736AIPZ support direct connection to a 32.768-kHz crystal for RTC operation?

Yes, MSP430F6736AIPZ supports direct connection of a 32.768-kHz crystal to pins XIN (pin 24) and XOUT (pin 25). The integrated RTC_C module uses this crystal source with automatic load capacitance tuning and temperature compensation to maintain ±2 ppm accuracy from -40°C to +85°C - satisfying IEC 62053-21 timekeeping specifications without external components.

How many I/O pins does MSP430F6736AIPZ provide, and are they 5-V tolerant?

MSP430F6736AIPZ provides 72 general-purpose I/O pins in its 100-pin LQFP package. All digital I/Os are LVCMOS-compatible with maximum input voltage of DVCC + 0.3 V and are not 5-V tolerant. Operation requires strict adherence to the 1.8 V–3.6 V DVCC supply range; interfacing with 5-V systems necessitates level-shifting circuitry.

Can MSP430F6736AIPZ operate from a single 3.3-V supply, and how is analog/digital isolation maintained?

Yes, MSP430F6736AIPZ operates from a single 3.3-V supply applied to DVCC, while AVCC must be supplied separately at same nominal voltage (3.3 V) but with dedicated low-noise filtering. Analog and digital domains are isolated internally via separate power pins (AVCC/AVSS vs DVCC/DVSS) and substrate separation - requiring physically separated PCB planes and ferrite-bead-filtered AVCC routing to achieve <10 µV RMS noise floor for 24-bit ADC performance.

What development tools are officially supported for MSP430F6736AIPZ firmware development?

Texas Instruments officially supports the EVM430-F6736 evaluation module, Energy Measurement Design Center software, and MSP430Ware peripheral driver library for MSP430F6736AIPZ development. Code generation and debugging are enabled via IAR Embedded Workbench, TI Code Composer Studio v12+, and MSP-FET debugger - all validated for metrology calibration, RTC configuration, and SD24_B register initialization sequences.