Texas Instruments MSP430F5333IPZR

Overview

MSP430F5333IPZR from Texas Instruments is an ultra-low-power 16-bit RISC microcontroller with integrated 3.3-V LDO, 128 KB flash, 10 KB RAM, 12-bit ADC (200 ksps, 16 channels), dual 12-bit DACs, two USCIs (UART/IrDA/SPI/I²C), four 16-bit timers, RTC with alarm, and 74 GPIO pins - deployed in battery-powered sensor systems and handheld meters.

For engineers reviewing the MSP430F5333IPZR datasheet, MSP430F5333IPZR pinout, MSP430F5333IPZR application, or MSP430F5333IPZR equivalent, key selection criteria include standby current (1.8 µA at 2.2 V), wake-up time (3 µs), ADC resolution and scan capability, DAC synchronization, and LQFP-100 package compatibility for space-constrained embedded designs.

Technical Context

The MSP430F5333IPZR 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 SVS/SVM supervision and brownout reset.

Peripherals include ADC12_A with autoscan and internal reference (1.5/2.0/2.5 V), Comp_B comparator, MPY32 hardware multiplier, 6-channel DMA, and USCI modules supporting simultaneous UART/IrDA/SPI on USCI_A and I²C/SPI on USCI_B - all operating under single-cycle CPUXV2 execution architecture.

Key Specifications

Pinout & Package

LQFP-100 package (14 mm × 14 mm) with exposed thermal pad; 74 multifunction I/O pins, including dedicated analog inputs (A0–A15), timer capture/compare (TAx/TBx), USCI signals (UCAx/UCAx), and RTC/backup supply (VBAT/VBAK).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F5333IPZR, MSP430F5336IPZR offers 8 KB more RAM and integrated DACs at identical pinout and power profile, while MSP430F5335IPZR doubles flash capacity without DAC - enabling trade-offs between code footprint, data buffering, and analog output needs.

Availability

MSP430F5333IPZR is available at Aetrix Electronics and suitable for remote controls, digital timers, and hand-held meters requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.

Supply support for MSP430F5333IPZR 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, embedded processing, and connectivity technologies with leadership in ultra-low-power design.

The MSP430F533x product line targets portable, battery-operated measurement and sensing applications where extended runtime, precision analog integration, and robust low-power operation are essential.

FAQ

What is the maximum system clock frequency supported by the MSP430F5333IPZR?

The MSP430F5333IPZR supports a maximum system clock frequency of 20 MHz. This is achieved using the FLL-controlled DCO or external high-frequency crystals up to 32 MHz on the XT2 oscillator. The device's CPUXV2 core and peripherals are fully rated for operation at 20 MHz, with timing parameters validated across the full 1.8 V to 3.6 V supply range per the SLAS721F datasheet Section 8.19.

Does the MSP430F5333IPZR include a hardware real-time clock (RTC) module?

Yes, the MSP430F5333IPZR integrates the RTC_B module with calendar function, alarm capability, and battery backup switching. It operates in LPM3.5 mode drawing only 1.1 µA at 3.0 V and retains time/date across main power loss when connected to VBAT. The RTC_B module is documented in Section 9.12.11 of the SLAS721F datasheet and supports direct register access and interrupt-driven alarms.

How many analog input channels does the ADC12_A module support on the MSP430F5333IPZR?

The ADC12_A module on the MSP430F5333IPZR supports 16 total input channels: 12 external analog inputs (A0–A11) and 4 internal sources (temperature sensor, VREF+, VeREF−, and AVCC/2). Channel selection, sample-and-hold timing, and autoscan sequencing are fully configurable via ADC12CTL0/1 registers as specified in Section 8.34–8.39 of the SLAS721F datasheet.

What debug interface does the MSP430F5333IPZR use, and is JTAG supported?

The MSP430F5333IPZR uses the Spy-Bi-Wire (SBW) interface for debugging and programming, accessible via the RST/NMI/SBWTDIO and TEST/SBWTCK pins. Full 4-wire JTAG is not implemented; SBW is a TI-proprietary 2-wire subset that provides equivalent functionality with reduced pin count. Debug support is confirmed in Section 7.2 and Section 9.8 of the SLAS721F datasheet.

Is the MSP430F5333IPZR pin-compatible with other devices in the MSP430F533x family?

Yes, the MSP430F5333IPZR is pin-compatible with MSP430F5335IPZR, MSP430F5336IPZR, and MSP430F5338IPZR in the LQFP-100 (PZ) package. All share identical pin functions, electrical characteristics, and mechanical dimensions per Figures 7-1 and 7-2 of the SLAS721F datasheet - enabling drop-in replacement within the same package variant when flash/RAM/DAC requirements align.