This is information on a product in full production.
February 2020 DS11929 Rev 6 1/183
STM32WB55xx
Multiprotocol wireless 32-bit MCU Arm
®
-based Cortex
®
-M4
with FPU, Bluetooth
®
5 and 802.15.4 radio solution
Datasheet - production data
Features
Includes ST state-of-the-art patented
technology
Radio
– 2.4 GHz
– RF transceiver supporting Bluetooth
®
5
specification, IEEE 802.15.4-2011 PHY
and MAC, supporting Thread and
ZigBee
®
3.0
– RX sensitivity: -96 dBm (Bluetooth
®
Low
Energy at 1 Mbps), -100 dBm (802.15.4)
– Programmable output power up to +6 dBm
with 1 dB steps
– Integrated balun to reduce BOM
– Support for 2 Mbps
– Dedicated Arm
®
32-bit Cortex
®
M0 + CPU
for real-time Radio layer
– Accurate RSSI to enable power control
– Suitable for systems requiring compliance
with radio frequency regulations ETSI EN
300 328, EN 300 440, FCC CFR47 Part 15
and ARIB STD-T66
– Support for external PA
– Available integrated passive device (IPD)
companion chip for optimized matching
solution (MLPF-WB55-01E3 or
MLPF-WB55-02E3)
Ultra-low-power platform
– 1.71 to 3.6 V power supply
– – 40 °C to 85 / 105 °C temperature ranges
– 13 nA shutdown mode
– 600 nA Standby mode + RTC + 32 KB
RAM
– 2.1 µA Stop mode + RTC + 256 KB RAM
– Active-mode MCU: < 53 µA / MHz when RF
and SMPS on
– Radio: Rx 4.5 mA / Tx at 0 dBm 5.2 mA
Core: Arm
®
32-bit Cortex
®
-M4 CPU with FPU,
adaptive real-time accelerator (ART
Accelerator) allowing 0-wait-state execution
from Flash memory, frequency up to 64 MHz,
MPU, 80 DMIPS and DSP instructions
Performance benchmark
– 1.25 DMIPS/MHz (Drystone 2.1)
– 219.48 CoreMark
®
(3.43 CoreMark/MHz at
64 MHz)
Energy benckmark
– 303 ULPMark™ CP score
Supply and reset management
– High efficiency embedded SMPS
step-down converter with intelligent bypass
mode
– Ultra-safe, low-power BOR (brownout
reset) with five selectable thresholds
– Ultra-low-power POR/PDR
– Programmable voltage detector (PVD)
–V
BAT
mode with RTC and backup registers
Clock sources
– 32 MHz crystal oscillator with integrated
trimming capacitors (Radio and CPU clock)
– 32 kHz crystal oscillator for RTC (LSE)
– Internal low-power 32 kHz (±5%) RC (LSI1)
– Internal low-power 32 kHz (stability
±500 ppm) RC (LSI2)
.
UFQFPN48
VFQFPN68
WLCSP100
0.4 mm pitch
7 x 7 mm solder pad
8 x 8 mm solder pad
UFBGA129
0.5 mm pitch
FBGA
www.st.com
STM32WB55xx
2/183 DS11929 Rev 6
– Internal multispeed 100 kHz to 48 MHz
oscillator, auto-trimmed by LSE (better than
±0.25% accuracy)
– High speed internal 16 MHz factory
trimmed RC (±1%)
– 2x PLL for system clock, USB, SAI and
ADC
Memories
– Up to 1 MB Flash memory with sector
protection (PCROP) against R/W
operations, enabling authentic Bluetooth
®
Low Energy and 802.15.4 SW stack
– Up to 256 KB SRAM, including 64 KB with
hardware parity check
– 20x32-bit backup register
– Boot loader supporting, USART, SPI, I2C
and USB interfaces
– OTA (over the air) Bluetooth
®
Low Energy
and 802.15.4 update
– Quad SPI memory interface with XIP
Rich analog peripherals (down to 1.62 V)
– 12-bit ADC 4.26 Msps, up to 16-bit with
hardware oversampling, 200 µA/Msps
– 2x ultra-low-power comparator
– Accurate 2.5 V or 2.048 V reference
voltage buffered output
System peripherals
– Inter processor communication controller
(IPCC) for communication with Bluetooth
®
Low Energy and 802.15.4
– HW semaphores for resources sharing
between CPUs
– 2x DMA controllers (7x channels each)
supporting ADC, SPI, I2C, USART, QSPI,
SAI, AES, timers
– 1x USART (ISO 7816, IrDA, SPI Master,
Modbus and Smartcard mode)
– 1x LPUART (low power)
– 2x SPI 32 Mbit/s
– 2x I2C (SMBus/PMBus)
– 1x SAI (dual channel high quality audio)
– 1x USB 2.0 FS device, crystal-less, BCD
and LPM
– Touch sensing controller, up to 18 sensors
– LCD 8x40 with step-up converter
– 1x 16-bit, four channels advanced timer
– 2x 16-bits, two channels timer
– 1x 32-bits, four channels timer
– 2x 16-bits ultra-low-power timer
– 1x independent Systick
– 1x independent watchdog
– 1x window watchdog
Security and ID
– Secure firmware installation (SFI) for
Bluetooth
®
Low Energy and 802.15.4 SW
stack
– 3x hardware encryption AES maximum
256-bit for the application, the Bluetooth
®
Low Energy and IEEE802.15.4
– Customer key storage / key manager
services
– HW public key authority (PKA)
– Cryptographic algorithms: RSA,
Diffie-Helman, ECC over GF(p)
– True random number generator (RNG)
– Sector protection against R/W operation
(PCROP)
– CRC calculation unit
– Die information: 96-bit unique ID
– IEEE 64-bit unique ID. Possibility to derive
802.15.4 64-bit and Bluetooth
®
Low Energy
48-bit EUI
Up to 72 fast I/Os, 70 of them 5 V-tolerant
Development support
– Serial wire debug (SWD), JTAG for the
Application processor
– Application cross trigger with input / output
– Embedded Trace Macrocell™ for
application
All packages are ECOPACK2 compliant
Table 1. Device summary
Reference Part numbers
STM32WB55xx
STM32WB55CC, STM32WB55RC, STM32WB55VC
STM32WB55CE, STM32WB55RE, STM32WB55VE
STM32WB55CG, STM32WB55RG, STM32WB55VG