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Texas Instruments MSP430F5500IRGZT — Microcontrollers & Processors (MCU / MPU / DSP)

TI MSP430F5500IRGZT 16-bit MCU, 25 MHz, 8 KB Flash, 48-VQFN

MPNMSP430F5500IRGZT
Active

Texas Instruments MSP430F5xx series, MSP430F5500IRGZT, 16-bit MSP430 CPUXV2 MCU, 25 MHz, 8KB Flash, 6K x 8 RAM, USB/I²C/SPI/UART, 48-VFQFN exposed pad, -40°C to 85°C.

$4.2600Ref. price · indicative, final on quote
Texas Instruments MSP430F5500IRGZT datasheet (PDF)
Packaging48-VFQFN Exposed Pad
RoHSROHS3 Compliant
SeriesMSP430F5xx
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

MSP430F5500IRGZT specifications
ParameterValue
SeriesMSP430F5xx
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))1.8V ~ 3.6V
Operating temperature-40°C~85°C(TA)
Speed25MHz
PackageTape & Reel (TR); Cut Tape (CT)
RAM size6K x 8
Core size16-Bit
PeripheralsBrown-out Detect/Reset, DMA, POR, PWM, WDT
ConnectivityI²C, IrDA, LINbus, SCI, SPI, UART/USART, USB
Number of i (O)31
Core processorMSP430 CPUXV2
Case48-VFQFN Exposed Pad
Program memory size8KB (8K x 8)

Product details

25 MHz MSP430 with USB — the BOM-fit tier

It packs 8 KB of Flash and 6 KB of RAM — enough for a USB bridge, a sensor hub, or a simple control loop, without paying for the 128 KB parts in the same family.

8 KB Flash — fit check before you commit

8 KB of program Flash is the tight end of the MSP430F5xx range. If your firmware already compiles to 6 KB on a similar part, this is the cost-optimized choice. If you are porting code from a larger MSP430, expect to strip out unused drivers or move lookup tables to external serial Flash. The 6 KB RAM is organized as 6K x 8 — enough for a modest USB buffer and a few sensor arrays, but not for large frame buffers or audio recording.

USB + serial — the interface mix

This MCU includes a full-speed USB 2.0 module with an integrated PHY, plus I²C, SPI, UART, and LINbus. The USB block handles up to eight endpoints and supports suspend/resume with a dedicated oscillator. For designs that need to talk to a PC over USB and also poll sensors over I²C or SPI, the MSP430F5500IRGZT handles both without an external bridge chip.

Surface-mount only, so no socketed prototyping — budget for an adapter board or a small-run QFN breakout.

Frequently asked questions

Is MSP430F5500IRGZT discontinued or end of life?

No. The lifecycle status is Active — no discontinuation notice, no last-time-buy deadline. It is safe to qualify for production or replenish existing BOM lines.

What is MSP430F5500IRGZT's listed speed?

The core runs at 25 MHz. That is the CPU clock speed for the MSP430 CPUXV2 — enough for USB polling, sensor reads, and real-time control loops that do not need a 100 MHz Cortex-M.

Is MSP430F5500IRGZT compatible with MSP430F5529?

Pin-compatible across the 48-pin VQFN package option? Not exactly — the F5529 has a different peripheral set and larger memory. Code written for the F5529's USB and serial blocks will port, but the Flash and RAM footprint is smaller here. Check the TI migration guide before assuming drop-in firmware compatibility.