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STM32WB55CC Datasheet(PDF) 12 Page - STMicroelectronics |
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STM32WB55CC Datasheet(HTML) 12 Page - STMicroelectronics |
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12 / 165 page  Description STM32WB55xx 12/165 DS11929 Rev 3 2 Description The STM32WB55xx multiprotocol wireless and ultra-low-power devices embed a powerful and ultra-low-power radio compliant with the Bluetooth® Low Energy SIG specification v5.0 and with IEEE 802.15.4-2011. They contain a dedicated Arm® Cortex® -M0+ for performing all the real-time low layer operation. The STM32WB55xx devices are designed to be extremely low-power and are based on the high-performance Arm® Cortex®-M4 32-bit RISC core operating at a frequency of up to 64 MHz. The Cortex®-M4 core features a Floating point unit (FPU) single precision that supports all Arm® single-precision data-processing instructions and data types. It also implements a full set of DSP instructions and a memory protection unit (MPU) that enhances application security. Enhanced inter-processor communication is provided by the IPCC with six bidirectional channels. The HSEM provides hardware semaphores used to share common resources between the two processors. The STM32WB55xx devices embed high-speed memories (Flash memory up to 1 Mbyte, up to 256 Kbyte of SRAM), a Quad-SPI Flash memory interface (available on all packages) and an extensive range of enhanced I/Os and peripherals. Direct data transfer between memory and peripherals and from memory to memory is supported by fourteen DMA channels with a full flexible channel mapping by the DMAMUX peripheral. The STM32WB55xx devices embed several mechanisms for embedded Flash memory and SRAM: readout protection, write protection and proprietary code readout protection. Portions of the memory can be secured for Cortex® -M0+ exclusive access. The two AES encryption engines, PKA and RNG enable lower layer MAC and upper layer cryptography. A customer key storage feature may be used to keep the keys hidden. The devices offer one fast 16-bit ADC and two ultra-low-power comparators associated with a high accuracy reference voltage generator The STM32WB55xx devices embed a low-power RTC, one advanced 16-bit timer, one general-purpose 32-bit timer, two general-purpose 16-bit timers, and two 16-bit low-power timers. In addition, up to 28 capacitive sensing channels are available. The devices also embed an integrated LCD driver up to 8x40 or 4x44, with internal step-up converter. They also feature standard and advanced communication interfaces: • one USART (ISO 7816, IrDA, Modbus and Smartcard mode) • one Low Power UART (LPUART) • two I2C (SMBus/PMBus) • two SPI (up to 32 MHz) • one Serial Audio Interface with two channels and three PDMs (SAI) • one USB 2.0 FS device with embedded crystal-less oscillator, supporting BCD and LPM • one Quad-SPI with Execute in Place (XIP) capability |
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