Texas Instruments MSP430F5335IPZR

Overview

MSP430F5335IPZR from Texas Instruments is an ultra-low-power 16-bit RISC microcontroller with 256 KB flash, 18 KB RAM, integrated 3.3-V LDO, 12-bit ADC (200 ksps, 16 channels), two USCI modules (UART/IrDA/SPI/I²C), four 16-bit timers, RTC with battery backup, and 74 GPIO pins in a 100-pin LQFP package - deployed in portable sensor systems and battery-powered thermostats.

For engineers reviewing the MSP430F5335IPZR datasheet, MSP430F5335IPZR pinout, MSP430F5335IPZR application, or MSP430F5335IPZR equivalent, key selection criteria include active-mode current (270 µA/MHz @ 8 MHz), standby LPM3 current (1.8 µA @ 2.2 V), wake-up time (3 µs), DAC absence, and LQFP-100 package compatibility for space-constrained embedded designs.

Technical Context

The MSP430F5335IPZR implements a unified clock system with FLL stabilization, dual crystal support (XT1 up to 32 kHz, XT2 up to 32 MHz), and internal oscillators (VLO, REFO). Its power-management subsystem integrates a programmable LDO core regulator, supply-voltage supervision, and five low-power modes optimized for intermittent sensing duty cycles.

Peripherals include two USCI_A modules supporting UART/IrDA/SPI and two USCI_B modules supporting I²C/SPI, a 12-bit ADC with autoscan and internal reference options (1.5/2.0/2.5 V), voltage comparator, hardware multiplier, 6-channel DMA, and RTC_B module with alarm and battery-backup capability - all operating across 1.8–3.6 V supply range.

Key Specifications

Pinout & Package

LQFP-100 package (14 mm × 14 mm), thermally enhanced with exposed thermal pad; pin-compatible with other MSP430F533x PZ variants including MSP430F5338IPZR and MSP430F5336IPZR.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F5336IPZR, the MSP430F5335IPZR provides double flash capacity without trade-offs in power or peripherals; versus MSP430F5338IPZR, it omits USB to reduce cost and simplify design where wired serial or wireless interfaces suffice.

Availability

MSP430F5335IPZR is available at Aetrix Electronics and suitable for portable sensor nodes, digital thermostats, and hand-held meters requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.

Supply support for MSP430F5335IPZR 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, with decades of expertise in ultra-low-power microcontrollers for industrial and sensing applications.

The MSP430F5335IPZR belongs to TI's MSP430F5xx mixed-signal MCU family, designed specifically for battery-powered measurement systems demanding nanowatt-level standby power, fast wake-up, and integrated analog peripherals.

FAQ

What is the maximum system clock frequency supported by the MSP430F5335IPZR?

The MSP430F5335IPZR supports a maximum system clock frequency of 20 MHz, achieved via its digitally controlled oscillator (DCO) or high-frequency crystal oscillator (XT2) up to 32 MHz. The device's CPUXV2 core and peripherals are fully rated for operation at 20 MHz, and all timing specifications in the datasheet assume this maximum frequency. MSP430F5335IPZR does not require external PLL circuitry to reach this speed.

Does the MSP430F5335IPZR include a digital-to-analog converter (DAC)?

No, the MSP430F5335IPZR does not include a DAC. Per the official device comparison table (SLAS721F), DAC12_A channels are marked as "–" for MSP430F5335 and MSP430F5333, confirming their omission. This distinguishes MSP430F5335IPZR from MSP430F5338IPZR and MSP430F5336IPZR, which each integrate two 12-bit DAC channels. All other analog features - including the 12-bit ADC and comparator - remain fully present.

What package type and dimensions does the MSP430F5335IPZR use?

The MSP430F5335IPZR uses a 100-pin LQFP (PZ) package measuring 14 mm × 14 mm with 0.5-mm lead pitch. It features an exposed thermal pad on the underside for improved heat dissipation and mechanical stability. This package is shared across the MSP430F533x family and is compatible with standard surface-mount reflow profiles per JEDEC J-STD-020.

How many universal serial communication interfaces (USCIs) does the MSP430F5335IPZR have, and what protocols do they support?

The MSP430F5335IPZR includes four USCIs: USCI_A0 and USCI_A1 each support UART, IrDA, and SPI; USCI_B0 and USCI_B1 each support I²C and SPI. This configuration enables simultaneous use of UART for debugging, I²C for sensor communication, and SPI for display or memory interfacing - all without protocol conflict or shared register contention.

What is the standby current consumption of the MSP430F5335IPZR in LPM3 mode?

In LPM3 (standby) mode with watchdog, crystal oscillator, and supply supervisor active plus full RAM retention, the MSP430F5335IPZR consumes 1.8 µA at 2.2 V and 2.1 µA at 3.0 V (typical values per SLAS721F). This ultra-low current enables multi-year operation on primary lithium batteries in applications such as wireless sensor endpoints and smart building controls.