Texas Instruments MSP430F6458IPZR

Overview

MSP430F6458IPZR from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller with 384 KB flash, 34 KB RAM, integrated LDO, USB-free architecture, and 74 GPIOs. It features a 12-bit ADC (200 ksps, 16 channels), dual 12-bit DACs, RTC with battery backup, LCD driver (160 segments), and three USCI modules supporting UART/IrDA/SPI/I²C - deployed in portable sensor systems and handheld meters requiring long battery life.

For engineers reviewing the MSP430F6458IPZR datasheet, MSP430F6458IPZR pinout, MSP430F6458IPZR application, or MSP430F6458IPZR equivalent, this page delivers verified specifications, validated pin functions, confirmed low-power mode timing, exact package mapping (LQFP-100), and two technically documented alternative parts for design continuity.

Technical Context

The MSP430F6458IPZR implements the MSP430XV2 CPU core with constant generators and 16-bit RISC architecture, operating up to 20 MHz via FLL-stabilized DCO or external crystals (XT1/XT2). Its unified clock system integrates VLO and REFO internal sources, enabling sub-µA LPM3.5 (1.1 µA) and LPM4.5 (0.45 µA) operation with 3 µs wake-up from standby.

Power management includes a programmable LDO delivering regulated core voltage, supply supervision with brownout detection, and dedicated RTC_B module with crystal oscillator and backup domain. Peripheral integration centers on three USCI modules (two UART/IrDA/SPI + one I²C/SPI), ADC12_A with autoscan, and LCD_B controller with contrast control - all optimized for single-supply 1.8–3.6 V operation.

Key Specifications

Pinout & Package

LQFP-100 (14 mm × 14 mm) package with exposed thermal pad; 100-pin square outline, 0.5 mm pitch, JEDEC standard footprint.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F6458IPZR, MSP430F6459IPZR offers headroom for future firmware expansion without layout change, while MSP430F5358IPZR trades LCD capability for reduced silicon cost - both maintain identical low-power behavior and I/O count but differ in display and memory scalability.

Availability

MSP430F6458IPZR is available at Aetrix Electronics and suitable for portable sensor systems, digital handheld meters, and thermostats requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.

Supply support for MSP430F6458IPZR 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 ultra-low-power MCU innovation.

The MSP430F645x series was designed specifically for battery-operated measurement and display applications demanding sub-µA sleep currents, integrated analog peripherals, and robust real-time operation - targeting metering, sensing, and human-interface devices.

FAQ

What is the maximum system clock frequency supported by the MSP430F6458IPZR?

The MSP430F6458IPZR supports a maximum system clock frequency of 20 MHz, achieved via its digitally controlled oscillator (DCO) with FLL stabilization or through external high-frequency crystals up to 32 MHz on the XT2 oscillator. This frequency enables real-time signal processing and high-speed peripheral operation while maintaining ultra-low active-mode current of 295 µA/MHz at 3.0 V. The MSP430F6458IPZR's clock architecture ensures stable timing across voltage and temperature ranges without external PLL components.

Does the MSP430F6458IPZR include an integrated USB interface?

No, the MSP430F6458IPZR does not include an integrated USB interface. Unlike the MSP430F665x or MSP430F565x families, the MSP430F6458IPZR omits the USB-PHY, USB-PLL, and endpoint buffers - confirmed in the Device Comparison table and functional block diagram. Communication is handled exclusively via three USCI modules supporting UART, IrDA, SPI, and I²C. This omission reduces cost and power consumption, making the MSP430F6458IPZR ideal for USB-free portable instrumentation.

What LCD configuration does the MSP430F6458IPZR support?

The MSP430F6458IPZR integrates the LCD_B module capable of driving up to 160 segments in static, 2-, 3-, or 4-mux configurations. It includes programmable charge pump, contrast control, and blinking support - eliminating need for external LCD bias circuitry. All segment and common outputs are routed to dedicated pins on P1–P9 ports, with direct mapping to memory-mapped LCD registers. This capability is confirmed in the device description, functional block diagram, and electrical characteristics section of the SLAS700E datasheet.

How many capture/compare registers are available in the MSP430F6458IPZR's timer peripherals?

The MSP430F6458IPZR includes four 16-bit timers: Timer_A0 with five capture/compare registers, Timer_A1 and Timer_A2 each with three registers, and Timer_B0 with seven registers - totaling 18 capture/compare registers. These support simultaneous PWM generation, input capture for frequency measurement, and interval timing. The configuration is identical across the MSP430F645x family and explicitly listed in the Device Comparison table and functional block diagram for MSP430F6458IPZR.

What is the standby current consumption of the MSP430F6458IPZR in LPM3 mode?

The MSP430F6458IPZR consumes 2.0 µA in LPM3 (standby) mode at both 2.2 V and 3.0 V, with watchdog timer and supply supervisor active and full RAM retention enabled. Wake-up occurs in 3 µs (typical), verified in the "Ultra-low power consumption" feature list and Section 8.5 of the SLAS700E datasheet. This current level is measured with crystal oscillator running for RTC support and applies specifically to the MSP430F6458IPZR within its specified operating conditions.