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Texas Instruments MSP430A142IRHAR — Microcontrollers & Processors (MCU / MPU / DSP)
Texas Instruments

TI MSP430A142IRHAR 16-bit MCU, 16 MHz, 32 KB Flash, 40-VQFN

MPNMSP430A142IRHAR
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Texas Instruments MSP430A142IRHAR, 16-bit MSP430 MCU, 16 MHz, 32 KB Flash, 1 KB RAM, 32 I/O, I²C/SPI/UART, 1.8 V to 3.6 V, -40°C to 85°C, 40-VQFN.

$3.7155Ref. price · indicative, final on quote
MSP430A142IRHAR datasheet
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Specifications

MSP430A142IRHAR Technical Specifications
ParameterValue
SeriesMSP430F2xx
Mounting typeSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))1.8V ~ 3.6V
Operating temperature-40°C~85°C(TA)
Speed16MHz
PackageTape & Reel (TR)
RAM size1K x 8
Core size16-Bit
PeripheralsBrown-out Detect/Reset, POR, PWM, WDT
ConnectivityI²C, IrDA, LINbus, SCI, SPI, UART/USART
Number of i (O)32
Core processorMSP430
Case40-VFQFN Exposed Pad
Data convertersA/D 12x10b
Program memory size32KB (32K x 8 + 256B)

Product details

What this MSP430 brings to a battery-powered control board

The Texas Instruments MSP430A142IRHAR is a 16-bit MSP430 MCU running at 16 MHz, with 32 KB of Flash program memory and 1 KB of RAM. It carries 32 I/O lines and a full set of serial interfaces — I²C, IrDA, LINbus, SCI, SPI, and UART/USART.

16 MHz — enough for control loops, not overkill for battery life

At 16 MHz, this core handles sensor polling, PID loops, and communication stacks.

32 KB Flash with 256 B info memory — firmware and calibration storage

The 32 KB Flash (32K x 8 plus 256 bytes) holds firmware for moderate-complexity applications — a multi-sensor data logger, a Modbus RTU slave, or a simple motor controller. The separate 256-byte info memory segment is useful for storing calibration coefficients, serial numbers, or configuration parameters that survive firmware updates.

Frequently asked questions

What is the operating voltage range of MSP430A142IRHAR?

The supply voltage range is 1.8 V to 3.6 V, covering single Li-ion cell or two alkaline cells.

What is the closest pin-compatible alternative to MSP430A142IRHAR?

Within the MSP430F2xx family, devices with the same 40-VQFN footprint and similar peripheral sets are pin-compatible. Check the base product number MSP430A142 for memory and peripheral variants that share the package and pinout.