Texas Instruments MSP430F4152IRGZ

Overview

MSP430F4152IRGZ from Texas Instruments is an ultralow-power 16-bit RISC mixed-signal microcontroller featuring 16 KB Flash, 512 B RAM, integrated 144-segment LCD driver, 10-bit 200-ksps ADC, two USCI modules (UART/IrDA/SPI and I²C/SPI), and dual 16-bit timers - deployed in battery-powered sensor interfaces and portable instrumentation.

For engineers reviewing the MSP430F4152IRGZ datasheet, MSP430F4152IRGZ pinout, MSP430F4152IRGZ application, or MSP430F4152IRGZ equivalent, key selection criteria include its 48-pin QFN (RGZ) package, 1.8–3.6 V supply range, sub-6 µs wake-up from LPM4, integrated LCD bias generation, and absence of USCI_B0 in RGZ-package variants.

Technical Context

The MSP430F4152IRGZ implements a 16-bit CPU with constant generator and seven addressing modes, executing register-to-register instructions in one MCLK cycle. Its FLL+ clock system locks the DCO to programmable multiples of ACLK (e.g., 32.768 kHz crystal), enabling stable MCLK/SMCLK/ACLK derivation with <6 µs active-mode wake-up.

Peripherals are memory-mapped and accessible via all CPU instructions. The device integrates a hardware-based Basic Timer1 with real-time clock calendar logic, analog comparator with slope-A/D capability, supply voltage supervisor with programmable threshold, and brownout detection - all operating within five software-selectable low-power modes.

Key Specifications

Pinout & Package

Package: 48-pin QFN (RGZ), 7 × 7 mm, 0.5 mm pitch, thermal pad (recommended connection to DVSS).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F4152IRGZ, the F4132IRGZ offers identical low-power performance and LCD/ADC features at lower cost but reduced code capacity, while the F4152IPM enables I²C and extra I/O at the expense of package size and layout complexity.

Availability

MSP430F4152IRGZ is available at Aetrix Electronics and suitable for hand-held metering, remote sensor nodes, and thermostat controllers requiring stable component supply, long-term lifecycle support, and consistent parametric performance across temperature ranges.

Supply support for MSP430F4152IRGZ 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 low-power MCU innovation.

The MSP430F41x2 product line targets ultra-low-power portable instrumentation and human-interface devices, emphasizing extended battery life, integrated analog peripherals, and simplified system design through on-chip LCD and sensor interface capabilities.

FAQ

What is the maximum ADC sampling rate supported by the MSP430F4152IRGZ?

The MSP430F4152IRGZ features a 10-bit successive approximation ADC with a maximum sampling rate of 200 ksamples per second. This specification is achieved under optimal conditions including internal reference, sample-and-hold enabled, and autoscan disabled. The ADC10CLK source must be configured to support this rate, and actual throughput depends on conversion mode, reference selection, and software overhead. MSP430F4152IRGZ delivers this performance while maintaining 0.1 µA LPM4 current draw for energy-constrained applications.

Does the MSP430F4152IRGZ support I²C communication?

No, the MSP430F4152IRGZ does not support I²C communication in its 48-pin QFN (RGZ) package. Although the USCI_B0 module is present in the MSP430F41x2 family, the datasheet explicitly states that USCI_B0 is not available in RGZ-package devices. Pins P6.1 and P6.2 retain GPIO functionality but cannot be used for I²C SCL/SDA. MSP430F4152IRGZ retains full USCI_A0 functionality (UART/IrDA/SPI), making it suitable for UART-based sensor networks where I²C is not required.

How many LCD segments can the MSP430F4152IRGZ drive, and what LCD types are supported?

The MSP430F4152IRGZ integrates the LCD_A peripheral capable of driving up to 144 segments using static, 2-MUX, 3-MUX, or 4-MUX configurations. It supports common backplane outputs (COM0–COM3) and provides software-controllable contrast via an internal regulated charge pump. The module includes dedicated segment memory and automatic refresh logic, eliminating CPU polling. MSP430F4152IRGZ achieves this with no external bias components, reducing BOM cost and PCB area in portable displays.

What debug interface does the MSP430F4152IRGZ use, and is JTAG available?

The MSP430F4152IRGZ uses the Spy-Bi-Wire (SBW) interface for debugging and programming, accessed via RST/NMI/SBWTDIO and TEST/SBWTCLK pins - a 2-wire subset of JTAG. Full 4-wire JTAG is not supported on this device. SBW enables in-circuit emulation, flash programming, and real-time debugging with minimal pin count. MSP430F4152IRGZ is compatible with TI's MSP-FET430UIF debugger and supports BSL UART programming via P1.0/P1.1 as a secondary option.

What is the wake-up time from lowest power mode on the MSP430F4152IRGZ?

The MSP430F4152IRGZ wakes up from Low-Power Mode 4 (LPM4) - its deepest retention mode drawing only 0.1 µA - in less than 6 microseconds. This fast wake-up is enabled by the digitally controlled oscillator (DCO) stabilized by the FLL+ module, which achieves frequency lock without external crystal startup delay. MSP430F4152IRGZ leverages this capability for event-driven sensing applications where responsiveness and energy efficiency are both critical.