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Texas Instruments MSP430F1121AIRGER — Microcontrollers & Processors (MCU / MPU / DSP)
Texas Instruments

Texas Instruments MSP430F1121AIRGER 16-bit MCU, 8 MHz, 4 KB Flash

MPNMSP430F1121AIRGER
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Texas Instruments MSP430F1121AIRGER, 16-bit MSP430 CPU16 MCU, 8 MHz, 4 KB Flash, 256 B RAM, 14 I/O, slope A/D, internal oscillator, 1.8–3.6 V, −40 to 85 °C, 24-VFQFN (4×4 mm) exposed pad, Tape & Reel.

$2.6430Ref. price · indicative, final on quote
MSP430F1121AIRGER datasheet
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  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
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Specifications

MSP430F1121AIRGER Technical Specifications
ParameterValue
SeriesMSP430x1xx
Mounting typeSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))1.8V ~ 3.6V
Operating temperature-40°C~85°C(TA)
Speed8MHz
PackageTape & Reel (TR); Cut Tape (CT)
RAM size256 x 8
Core size16-Bit
PeripheralsPOR, WDT
Number of i (O)14
Core processorMSP430 CPU16
Case24-VFQFN Exposed Pad
Data convertersSlope A/D
Program memory size4KB (4K x 8 + 256B)

Product details

What this MSP430 brings to a low-power BOM

The Texas Instruments MSP430F1121AIRGER is a 16-bit MSP430 CPU16 microcontroller clocked at 8 MHz, with 4 KB of Flash program memory and 256 bytes of RAM. It packs 14 general-purpose I/O lines, a slope A/D converter, an internal oscillator, and basic peripherals — POR and WDT — into a 24-VFQFN exposed-pad package measuring 4×4 mm. This is a part sized for battery-operated sensor nodes, portable instruments, and simple control loops where every microamp and square millimeter counts.

Memory and speed — what fits in 4 KB Flash

At 8 MHz the CPU16 core delivers enough throughput for periodic ADC reads, button debouncing, and serial communication, but the 4 KB Flash and 256 B RAM are tight. Firmware must be lean — think a single UART protocol, a few calibration constants, and a state machine. The slope A/D converter is on-chip, so no external ADC is needed for slow analog inputs like temperature or battery voltage.

Supply range and temperature grade

Operates from 1.8 V to 3.6 V. The −40 °C to 85 °C range covers industrial enclosures.

Frequently asked questions

Does MSP430F1121AIRGER support slope A/D conversion?

Yes, the device includes a slope A/D converter on-chip, suitable for slow analog inputs such as temperature or battery voltage monitoring without an external ADC.

What is the pin configuration of MSP430F1121AIRGER?

The part comes in a 24-VFQFN exposed-pad package (4×4 mm). The supplier device package is 24-VQFN. For the exact pinout, refer to the datasheet — the evidence does not list pin assignments.