STMicroelectronics · Electronic Components
STM32WB55CG
Ultra-low-power dual core Arm Cortex-M4 MCU 64 MHz, Cortex-M0+ 32 MHz with 1 Mbyte of Flash memory, Bluetooth LE 5.4, 802.15.4, Zigbee, Thread, Matter, USB, LCD, AES-256
Part NumberSTM32WB55CG
ManufacturerSTMicroelectronics
AvailabilityAvailable to order — request a quote
Specifications
SeriesSTM32WB
PackageUFQFPN 48 7x7x0.55 mm
CoreArm Cortex-M4
Frequency Mhz64
Flash Kb1024.0
Ram Kb256.0
InterfacesI2C: 2; SPI: 1; USART: 1; UART: 1; USB: USB FS; External memory: Quad SPI; Additional: SAI
AnalogADC12: 1 conv / 13 ch; Comparators: 2
Timers16-bit timers: 5; 32-bit timers: 1; Other: Dual Watchdog, LP timer, RTC, SysTick
SecurityCrypto: AES, ECC, RSA, TRNG; Security: Abnormal Situation Handling, Application Lifecycle, Crypto Engine, Isolation Dual
Supply Voltage1.71–3.6 V
Temp Range-40.0 to 105.0 °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 STM32WB55CG available?
We can source STM32WB55CG 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 STM32WB55CG by STMicroelectronics obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If STM32WB55CG 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 STM32WB55CG?
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 STM32WB55CG?
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.