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Texas Instruments MSP430F46181IPZ — Microcontrollers & Processors (MCU / MPU / DSP)

Texas Instruments MSP430F46181IPZ 16-bit MCU, 8 MHz, 116 KB Flash, 100-LQFP

MPNMSP430F46181IPZ
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Texas Instruments MSP430F46181IPZ, MSP430x4xx series, 16-bit MSP430 CPUX at 8 MHz, 116 KB Flash / 8 KB RAM, 80 I/O, 100-LQFP, 1.8–3.6 V, -40 to 85 °C, LCD controller, DMA, I²C/SPI/UART/IrDA.

$15.4074Ref. price · indicative, final on quote
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Specifications

MSP430F46181IPZ Technical Specifications
ParameterValue
SeriesMSP430x4xx
Mounting typeSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))1.8V ~ 3.6V
Operating temperature-40°C~85°C(TA)
Speed8MHz
PackageTube
RAM size8K x 8
Core size16-Bit
PeripheralsBrown-out Detect/Reset, DMA, LCD, POR, PWM, WDT
ConnectivityI²C, IrDA, SCI, SPI, UART/USART
Number of i (O)80
Core processorMSP430 CPUX
Case100-LQFP
Program memory size116KB (116K x 8 + 256B)

Product details

8 MHz core — what it means for the control loop

At 8 MHz, this isn't a high-throughput DSP or a motor-FOC engine. It's sized for moderate-rate control loops — reading a handful of analog inputs, updating a segment LCD, and handling serial comms without a bottleneck. The DMA engine offloads data transfers from the CPU, so you can keep the LCD refreshed or buffer UART traffic without eating into the 8 MHz MIPS budget. For a display panel or a data-logging node, that's the right trade-off: enough compute for the task, low enough power to stretch battery life.

Where it fits — display panels, data loggers, battery instruments

The integrated LCD controller is the standout feature here — it drives a segment LCD directly, saving an external driver IC and the board space it would take. That makes this part a natural fit for handheld meters, flow totalizers, thermostat panels, or any battery-powered instrument that needs a local readout. The 80 I/O lines give you headroom for a keypad matrix, external memory, or a parallel interface to a sensor array. The internal oscillator keeps the BOM lean; no external crystal needed unless you require tighter timing for a specific protocol. Mount it in the 100-LQFP footprint, route the LCD segment lines to the display connector, and you've got a self-contained UI controller.

Frequently asked questions

What is the operating voltage range of MSP430F46181IPZ?

The supply range is 1.8 V to 3.6 V, covering single-cell battery operation and standard 3.3 V logic rails.

What is MSP430F46181IPZ's listed speed?

The core runs at 8 MHz, which is the CPU clock speed for this 16-bit MSP430 CPUX processor.