Texas Instruments MSP430F6436IPZR

Overview

MSP430F6436IPZR from Texas Instruments is an ultra-low-power 16-bit RISC microcontroller with integrated 3.3-V LDO, 128 KB flash, 18 KB RAM, 12-bit ADC (200 ksps, 16 channels), dual 12-bit DACs, LCD driver (160 segments), RTC, four 16-bit timers, two USCIs (UART/IrDA/SPI/I²C), and 74 GPIO pins - deployed in battery-powered sensor systems and portable meters.

For engineers reviewing the MSP430F6436IPZR datasheet, MSP430F6436IPZR pinout, MSP430F6436IPZR application, or MSP430F6436IPZR equivalent, key selection criteria include standby current (1.8 µA @ 3.0 V), wake-up time (3 µs), ADC resolution and scan capability, LCD segment count, DAC synchronization, and LQFP-100 package compatibility for space-constrained embedded designs.

Technical Context

The MSP430F6436IPZR implements a unified clock system with FLL stabilization, VLO and REFO internal sources, XT1 (32 kHz) and XT2 (up to 32 MHz) crystal support, and programmable core voltage via integrated LDO. Its five low-power modes (LPM0–LPM4.5) are managed by the power-management module with supply supervision, brownout detection, and SVM/SVS circuitry.

Peripherals include two USCI modules - USCI_A0/A1 supporting enhanced UART with auto-baud detection and IrDA, and USCI_B0/B1 supporting I²C and SPI - plus DMA-driven ADC12_A with autoscan, hardware multiplier (MPY32), CRC16 engine, and RTC_B with alarm and battery backup capability.

Key Specifications

Pinout & Package

LQFP-100 package (14 mm × 14 mm), thermally enhanced, RoHS-compliant, with 74 general-purpose I/O pins, dedicated JTAG/SBW debug interface, and segregated analog/digital power domains (DVCC/DVSS, AVCC/AVSS).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar ultra-low-power microcontroller applications.

Compared with MSP430F6438IPZR, the MSP430F6436IPZR offers identical peripheral set and package but reduced flash capacity; versus MSP430F6435IPZR, it adds dual DACs essential for analog stimulus generation, making it the optimal choice for mixed-signal closed-loop systems.

Availability

MSP430F6436IPZR is available at Aetrix Electronics and suitable for smart energy meters, portable medical devices, industrial sensor nodes, and programmable thermostats requiring stable component supply across long-lifecycle industrial programs.

Supply support for MSP430F6436IPZR 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 integration.

The MSP430F6436IPZR belongs to the MSP430F6xx ultra-low-power MCU family, designed specifically for battery-operated measurement and sensing applications where extended runtime, precision analog integration, and minimal external components are critical.

FAQ

What is the maximum operating frequency of the MSP430F6436IPZR?

The MSP430F6436IPZR supports a maximum system clock frequency of 20 MHz, achieved using the FLL-controlled DCO or external high-frequency crystal (XT2) up to 32 MHz. The CPU executes instructions at this rate, and all peripherals-including ADC, timers, and USCI-are clocked synchronously to ensure deterministic timing and throughput within the specified voltage range (1.8 V to 3.6 V). This frequency enables responsive real-time control while maintaining ultra-low power consumption.

Does the MSP430F6436IPZR support hardware debugging?

Yes, the MSP430F6436IPZR supports hardware debugging via the Spy-Bi-Wire (SBW) interface using the RST/NMI/SBWTDIO and TEST/SBWTCK pins. This two-wire interface enables full JTAG-like functionality-including breakpoint setting, register inspection, and flash programming-without requiring a dedicated 4-pin JTAG header. It is compatible with TI's MSP-FET and third-party debug probes, and requires no external voltage beyond the device's DVCC supply.

How many analog input channels does the ADC12_A module support on the MSP430F6436IPZR?

The ADC12_A module on the MSP430F6436IPZR supports 16 total input channels: 12 external analog inputs (A0–A11) accessible through P6.x and P7.x pins, and 4 internal sources - including temperature sensor, supply voltage (VCC), reference voltage (VeREF+), and VMID. Channel selection, sample timing, and conversion sequencing are fully configurable via registers, and autoscan mode allows automatic cycling through multiple channels without CPU intervention.

What LCD configuration options does the MSP430F6436IPZR provide?

The MSP430F6436IPZR integrates the LCD_B module supporting up to 160 segments in static, 2-mux, 3-mux, or 4-mux configurations. It includes programmable contrast control, charge pump for bias voltage generation, and direct mapping to P5.x, P7.x, and P9.x pins. The driver operates independently of the CPU and supports automatic blinking, charge redistribution, and low-power modes - enabling sharp, readable displays in handheld instruments without external drivers.

Is the MSP430F6436IPZR pin-compatible with other devices in the MSP430F643x family?

Yes, the MSP430F6436IPZR is fully pin-compatible with the MSP430F6438IPZR, MSP430F6435IPZR, and MSP430F6433IPZR in the LQFP-100 (PZ) package. All share identical pin assignments, electrical characteristics, and peripheral mappings. Firmware developed for one can run on another with only flash/RAM size and DAC presence differences requiring software awareness - enabling scalable design reuse across product tiers.