Texas Instruments MSP430F6459IPZR

Overview

MSP430F6459IPZR from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller featuring 512 KB flash, 66 KB RAM, four 16-bit timers, a 12-bit 200-ksps ADC with 16 channels (12 external + 4 internal), two 12-bit DACs, and integrated LCD driver for up to 160 segments - deployed in battery-powered sensor systems and digital thermostats.

For engineers reviewing the MSP430F6459IPZR datasheet, MSP430F6459IPZR pinout, MSP430F6459IPZR application, or MSP430F6459IPZR equivalent, key selection criteria include LDO-integrated power management, RTC with battery backup, USB absence (vs. F665x/F565x), and LQFP-100 packaging for industrial control and handheld metering designs.

Technical Context

The MSP430F6459IPZR implements a 16-bit RISC CPUXV2 core with constant generators and hardware multiplier supporting 32-bit operations. Its unified clock system integrates DCO, VLO, REFO, XT1 (32-kHz crystal), and XT2 (up to 32-MHz crystal) with FLL stabilization - enabling wake-up from LPM3 in 3 µs (typical).

Power architecture includes a fully integrated programmable LDO, supply voltage supervisor (SVS), brownout reset (BOR), and five low-power modes (LPM0–LPM4.5). Peripherals are managed via six-channel DMA and three USCIs - USCI_A0/A1/A2 support UART/IrDA/SPI; USCI_B0/B1/B2 support I²C/SPI; no USB PHY or USB endpoints are present.

Key Specifications

Pinout & Package

LQFP-100 package (14 mm × 14 mm), thermally enhanced with exposed thermal pad; 74 GPIO pins distributed across Ports P1–P9 and PJ, plus dedicated analog, power, and clock terminals.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F6459IPZR, MSP430F6659IPZR adds USB but removes LCD support, while MSP430F5359IPZR omits both USB and LCD - making MSP430F6459IPZR optimal for LCD-equipped, USB-free portable instrumentation requiring integrated power regulation.

Availability

MSP430F6459IPZR is available at Aetrix Electronics and suitable for smart thermostat control, handheld digital multimeters, industrial sensor nodes, and digital timer/event logger designs requiring stable component supply and long-term production continuity.

Supply support for MSP430F6459IPZR 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 delivering analog, embedded processing, and connectivity solutions for industrial, automotive, and consumer markets.

The MSP430F6459IPZR belongs to TI's ultra-low-power mixed-signal MCU family optimized for extended battery life in portable measurement and sensing applications - emphasizing integrated analog peripherals, intelligent power management, and minimal active/standby current.

FAQ

Does MSP430F6459IPZR support USB connectivity?

No, MSP430F6459IPZR does not include a USB PHY, USB-PLL, or USB endpoints. It is part of the F645x series, which explicitly omits USB functionality - unlike the F665x and F565x variants. Designs requiring USB must use MSP430F6659IPZR or add an external USB-to-UART bridge. The MSP430F6459IPZR retains all other core peripherals including ADC, DAC, timers, and LCD driver.

What is the maximum operating frequency of MSP430F6459IPZR?

The MSP430F6459IPZR supports a maximum system clock (MCLK) of 20 MHz, achieved using the integrated digitally controlled oscillator (DCO) or high-frequency crystals up to 32 MHz via XT2. At 20 MHz and 3.0 V, active-mode current is 295 µA/MHz (typical) during flash execution - verified per SLAS700E datasheet Section 8.4.

How many I/O pins does MSP430F6459IPZR provide?

MSP430F6459IPZR provides 74 general-purpose I/O pins across Ports P1–P9 and PJ in its LQFP-100 package. All pins support interrupt capability and multiple peripheral functions (e.g., USCI, ADC, timer capture), with configurable drive strength and Schmitt-trigger inputs on most ports - detailed in Section 7.2 of the SLAS700E datasheet.

Is MSP430F6459IPZR compatible with the MSP430F6659IPZR pinout?

Yes, MSP430F6459IPZR and MSP430F6659IPZR share identical LQFP-100 pinouts and package dimensions (14 mm × 14 mm), enabling mechanical compatibility. However, USB-related pins (DP/DM) on MSP430F6659IPZR are No Connect (NC) on MSP430F6459IPZR - requiring firmware and schematic review before substitution.

What LCD segment count does MSP430F6459IPZR support?

MSP430F6459IPZR integrates the LCD_B module supporting up to 160 segments with programmable contrast control and static/multiplexed drive modes. This enables direct driving of alphanumeric or custom segment displays in handheld meters and thermostats without external LCD controllers - confirmed in Section 1, Features and Figure 4-1 of SLAS700E.