Texas Instruments MSP430F5436IPZR

Overview

MSP430F5436IPZR from Texas Instruments is a 16-bit ultra-low-power mixed-signal microcontroller featuring 192 KB flash, 16 KB RAM, a 12-bit ADC with 14 external + 2 internal channels, three 16-bit timers (Timer_A ×2, Timer_B ×1), four USCI modules (2 UART/IrDA/SPI + 2 I²C/SPI), and real-time clock capability. It operates from 2.2 V to 3.6 V and supports battery-powered sensor systems requiring sub-µA standby current.

For engineers reviewing the MSP430F5436IPZR datasheet, MSP430F5436IPZR pinout, MSP430F5436IPZR application, or MSP430F5436IPZR equivalent, key selection criteria include LPM3 current (2.6 µA), 100-pin LQFP package compatibility, integrated LDO core regulation, RTC alarm support, and dual-USCI-A/B interface flexibility for multi-protocol embedded control.

Technical Context

The MSP430F5436IPZR implements a CPUXV2 16-bit RISC core with constant generators and extended memory addressing, paired with a Unified Clock System (UCS) supporting FLL-stabilized MCLK up to 18 MHz, programmable LDO core voltage, and multiple low-power modes (LPM0–LPM4). Its peripheral set includes DMA-driven ADC sampling, hardware multiplier for 32-bit operations, and JTAG/SBW debug interface.

It integrates dedicated analog functions including internal reference (REFO), VLO oscillator, crystal support for XT1 (32 kHz) and XT2 (up to 32 MHz), and Schmitt-trigger inputs on all general-purpose I/O pins. The device uses a segmented memory architecture with boot loader (BSL) support and TLV descriptor for factory-programmed calibration data.

Key Specifications

Pinout & Package

LQFP-100 package (14 mm × 14 mm, 0.5 mm pitch), thermally enhanced with exposed thermal pad. Pin count and signal mapping match MSP430F5438IPZ and MSP430F5419IPZ per TI SLAS612F.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F5436IPZR, the MSP430F5438IPZR offers headroom for complex firmware growth without changing PCB layout, while the MSP430F5419IPZR reduces flash cost where feature set remains unchanged - both share identical peripheral configuration and low-power behavior.

Availability

MSP430F5436IPZR is available at Aetrix Electronics and suitable for analog sensor systems, digital thermostats, and hand-held meters requiring stable component supply, long-term lifecycle assurance, and consistent parametric performance across production batches.

Supply support for MSP430F5436IPZR 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 delivering analog and embedded processing solutions, with leadership in low-power microcontrollers, precision analog, and power management ICs.

The MSP430F5436IPZR belongs to the MSP430F5xx ultra-low-power MCU family, designed specifically for portable and energy-constrained measurement applications where extended battery life, integrated analog peripherals, and deterministic real-time response are critical.

FAQ

What is the maximum system clock frequency supported by the MSP430F5436IPZR?

The MSP430F5436IPZR supports a maximum system clock (MCLK) frequency of 18 MHz, achieved via the FLL-controlled DCO using high-frequency crystal (XT2) or internal reference. This frequency is validated across the full operating voltage range (2.2 V–3.6 V) and ambient temperature (–40°C to 85°C), enabling real-time processing of sensor data and communication protocols without timing margin risk.

Does the MSP430F5436IPZR include an integrated real-time clock (RTC)?

Yes, the MSP430F5436IPZR includes a hardware RTC_A module with calendar mode, alarm interrupt, and battery-backup capability when connected to a 32-kHz crystal on XIN/XOUT. It operates autonomously in LPM3 with only 2.6 µA current draw, retaining time and date across deep sleep - no firmware polling or external RTC IC required.

How many universal serial communication interfaces (USCI) does the MSP430F5436IPZR have, and what protocols do they support?

The MSP430F5436IPZR has four USCI modules: USCI_A0 and USCI_A1 each support UART, IrDA, and SPI; USCI_B0 and USCI_B1 each support I²C and SPI. All operate independently with separate clock domains, allowing concurrent UART debug, SPI sensor reads, and I²C display updates without resource contention or software multiplexing.

What is the ADC resolution and channel count on the MSP430F5436IPZR?

The MSP430F5436IPZR features a 12-bit successive-approximation ADC (ADC12_A) with 14 external analog input channels and 2 internal channels (temperature sensor and VREF tap). It achieves 200 ksps maximum sample rate, supports autoscan mode for unattended multi-channel acquisition, and includes internal reference (REFO) and sample-and-hold - eliminating need for external reference or sample-hold circuitry.

Is the MSP430F5436IPZR pin-compatible with other devices in the MSP430F543x family?

Yes, the MSP430F5436IPZR is pin-compatible with MSP430F5438IPZR and MSP430F5419IPZR in the 100-pin LQFP (PZ) package. All share identical pin numbering, signal assignments, power/ground locations, and thermal pad layout - enabling direct PCB substitution where flash size requirements align, without layout revision or signal re-routing.