STMicroelectronics · Electronic Components
STM32H543UG
High Performance Arm Cortex-M33 with TrustZone MCU, 250 MHz, 512 KB flash, 304 KB RAM, crypto, Ethenet, FDCAN, I3C, FMC, PLAY
Part NumberSTM32H543UG
ManufacturerSTMicroelectronics
LifecyclePreview
AvailabilityAvailable to order — request a quote
Specifications
SeriesSTM32H5
PackageWLCSP 63 3.0x3.0x0.58 P 0.35 mm
CoreArm Cortex-M33 with TrustZone
Frequency Mhz250
Flash Kb1024.0
Ram Kb304.0
InterfacesI2C: 3; SPI: 4; I2S: 3; USART: 3; UART: 4; USB: USB FS; CAN-FD: 2; I3C: 2; External memory: FMC, Octo SPI; Additional: S
AnalogADC12: 3 conv / 20 ch; DAC12: 1; Comparators: 1; Op amps: 1
Timers16-bit timers: 5; 32-bit timers: 2; Motor control timers: 2; Other: Dual Watchdog, RTC, SysTick
SecurityCrypto: AES, ECDSA, OTF DEC, PKA, S-AES, S-ECC, S-RSA, SHA-1, SHA-2, TRNG; Security: Abnormal Situation Handling, Applic
Supply Voltage1.62–3.6 V
Temp Range-40.0 to 85.0 °C
RH Electronics, Inc. — independent stocking distributor since 1982.
Every shipment inspected on receipt · ISO 9001:2015 · ANSI/ESD S20.20 · ERAI member since 1998 · GIDEP participant
Every shipment inspected on receipt · ISO 9001:2015 · ANSI/ESD S20.20 · ERAI member since 1998 · GIDEP participant
Frequently asked
Is STM32H543UG available?
We can source STM32H543UG even if it isn't in our active stock list. As an independent distributor we reach inventory outside the franchise channel — including hard-to-find and obsolete parts. Send us a quote request.
Is STM32H543UG by STMicroelectronics obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If STM32H543UG has been discontinued, we can often source remaining stock or qualified alternates. Contact us with your quantity and target date.
How does RH Electronics verify parts like STM32H543UG?
Every incoming shipment is inspected under our ISO 9001:2015 quality system — documentation, markings, and construction checked against known-good references. For deeper analysis, we direct work through accredited independent labs. We've been an ERAI member since 1998 and a GIDEP participant.
Can you find a cross-reference or alternate for STM32H543UG?
Yes. Our team reads part numbers the way they were designed — decoding family, speed, temperature grade, package, and reliability level — to identify acceptable alternates when the exact part isn't available. Submit a quote request and we'll advise.