Texas Instruments MSP430F5358IPZ

Overview

MSP430F5358IPZ from Texas Instruments is a 16-bit ultra-low-power mixed-signal microcontroller in LQFP-100 package, featuring 384 KB flash, 34 KB RAM, four 16-bit timers, 12-bit ADC (200 ksps, 16 channels), dual 12-bit DACs, USB 2.0 interface, and integrated LCD driver for up to 160 segments - deployed in battery-powered sensor systems and portable meters.

For engineers reviewing the MSP430F5358IPZ datasheet, MSP430F5358IPZ pinout, MSP430F5358IPZ application, or MSP430F5358IPZ equivalent, key selection criteria include LPM3 standby current (2.0 µA at 3.0 V), 3 µs wake-up time from LPM3, USB PHY integration, absence of on-chip USB transceiver, and LDO-based core regulation without external voltage scaling.

Technical Context

The MSP430F5358IPZ implements a 16-bit RISC CPU with constant generators and hardware multiplier supporting 32-bit operations. Its unified clock system integrates FLL, VLO, REFO, XT1 (32-kHz crystal), and XT2 (up to 32 MHz) with programmable LDO core regulation and brownout detection.

Peripherals include three USCIs (USCI_A0–A2 for UART/IrDA/SPI; USCI_B0–B2 for I²C/SPI), RTC_B with battery backup, 6-channel DMA, CRC16 engine, and Comp_B - all operating under five low-power modes optimized for sub-µA real-time operation with full RAM retention.

Key Specifications

Pinout & Package

LQFP-100 (14 mm × 14 mm) package with exposed thermal pad; 74 general-purpose I/O pins distributed across Ports P1–P9 and PJ, plus dedicated JTAG/SBW debug interface (TCK/TMS/TDI/TDO/RST/NMI).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F5358IPZ, the MSP430F5359IPZ trades USB capability for larger memory, while the MSP430F6458IPZ replaces USB with enhanced LCD drive and LDO - making MSP430F5358IPZ optimal for USB-enabled portable instrumentation where compact firmware and moderate RAM suffice.

Availability

MSP430F5358IPZ is available at Aetrix Electronics and suitable for portable hand-held meters, digital thermostats, and analog sensor signal conditioners requiring stable component supply, long-term lifecycle assurance, and TI-qualified production lots.

Supply support for MSP430F5358IPZ 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 over 50 years of microcontroller innovation.

The MSP430F535x series targets ultra-low-power portable measurement systems - designed to maximize battery life through intelligent power gating, fast wake-up, and integrated analog subsystems without sacrificing computational capability.

FAQ

Does MSP430F5358IPZ include an integrated USB transceiver?

No, the MSP430F5358IPZ integrates only the USB 2.0 PHY layer - not a full transceiver. External components including USB connector, ESD protection diodes, and 1.5-kΩ pull-up resistor on DP are required for USB enumeration. The device lacks internal USB voltage regulators beyond the PHY, so VBUS sensing must be implemented externally.

What is the maximum system clock frequency supported by MSP430F5358IPZ?

The MSP430F5358IPZ supports up to 25 MHz system clock via its FLL-controlled DCO or external XT2 crystal oscillator (up to 32 MHz). At 25 MHz, active-mode current is 295 µA/MHz (typical at 3.0 V), enabling real-time signal processing in battery-constrained applications without compromising power budget.

How many I/O pins does MSP430F5358IPZ provide, and what is their drive strength?

The MSP430F5358IPZ provides 74 general-purpose I/O pins across Ports P1–P9 and PJ. Each pin supports full-drive (6 mA sink/source at 3.0 V) and reduced-drive (1.5 mA) modes, configurable per pin via PxDS registers. Schmitt-trigger inputs ensure noise immunity on all digital inputs, critical for noisy industrial environments.

Can MSP430F5358IPZ operate without an external crystal?

Yes - the MSP430F5358IPZ can run entirely from internal oscillators: VLO (10 kHz), REFO (32.768 kHz), or DCO (calibrated up to 25 MHz). External crystals (XT1 for 32.768 kHz, XT2 for up to 32 MHz) are optional and used only when higher timing accuracy or USB synchronization is required.

What LCD segment count does MSP430F5358IPZ support, and how is bias generated?

The MSP430F5358IPZ supports up to 160 LCD segments using its integrated LCD_B module with software-configurable bias (static, 2-, 3-, or 4-mux) and contrast control. It generates internal bias voltages (VLCD) from DVCC and does not require external charge pumps or bias resistors - reducing BOM count for compact displays.