Product overview
Description
The STM32C55xxx devices are general purpose microcontrollers family (STM32C5 Series) based on the high‑performance Arm® Cortex®-M33 32-bit RISC core. They operate at a frequency of up to 144 MHz.
The Cortex®-M33 core features a single‑precision floating‑point unit (FPU), that supports all the Arm® single‑precision data‑processing instructions and all the data types.
The Cortex®-M33 core also implements a full set of digital signal processing (DSP) instructions and a memory protection unit (MPU) that enhances the application security.
The devices embed high‑speed memories (512‑Kbyte flash memory and 128‑Kbyte SRAM), and an extensive range of enhanced I/Os, peripherals connected to three APB buses, three AHB buses, and a 32‑bit multi‑AHB bus matrix.
The devices feature several protection mechanisms for embedded flash memory and SRAM: readout protection, write protection, and hide protection areas.
The devices embed several peripherals reinforcing security:
- HASH hardware accelerator
- True random number generator
The devices offer two 12‑bit ADCs, one DAC channel, one comparator, a low‑power RTC, two 32‑bit general‑purpose timers, two 16‑bit PWM timers dedicated to motor control, four 16‑bit general‑purpose timers, two 16‑bit basic timers, and one 16‑bit low‑power timer.
The devices also feature standard and advanced communication interfaces such as:
- Two I2Cs
- One I3C shared with I2C
- Three SPIs with multiplexed full-duplex I2S
- Three USARTs, two UARTs, and one low‑power UART
- One FDCAN
- One USB full‑speed
The devices operate in the –40 to +105 °C (+130 °C junction) temperature ranges from a 2.7 to 3.6 V power supply.
A comprehensive set of power‑saving modes allows the design of low‑power applications.
The devices offer multiple packages from 32 to 100 pins.
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All features
- Includes ST state-of-the-art patented technology.
- Core
- 32-bit Arm® Cortex®-M33 CPU with FPU, frequency up to 144 MHz, MPU, and DSP instructions
- Benchmarks
- ART Accelerator
- 8-Kbyte instruction cache enables 0-wait-state execution from flash memory at the CPU's maximum speed
- Memories
- Up to 512‑Kbyte flash memory with ECC, 2 banks read-while-write
- 128-Kbyte SRAM including 64-Kbyte with ECC
- 64-Kbyte flash memory area for software EEPROM emulation
- 4.5-Kbyte OTP (one-time programmable)
- Clock, reset, and supply management
- 2.7 V to 3.6 V application supply and I/O
- POR, PDR, and PVD
- Embedded regulator (LDO)
- Internal oscillators: 144 MHz HSI (with +/- 1% accuracy over temperature range [-20 °C : 130°C]), 160/144/100 MHz PSI, 32 kHz LSI
- External oscillators: 4 to 50 MHz HSE, 32.768 kHz LSE
- Low-power modes: Sleep, Stop, and Standby
- DMA controller to offload the CPU
- 2 x LPDMA with 12 channels (8 + 4)
- Analog
- 2 × 12-bit ADC (19 external channels and 2 internal), up to 2.25 MSPS, or up to 4.5 MSPS in dual interleaved mode
- 1 × 12-bit DAC (with output buffer)
- 1 × comparator (with configurable set of inputs)
- Up to 15 timers
- 9 × 16-bit (including 2 × 16-bit advanced motor control, 1 × low-power 16-bit timer available in Stop mode) and 2 × 32-bit timers
- 2 × watchdogs
- 1 × SysTick timer
- RTC with hardware calendar, alarms, and calibration
- Communication interfaces
- Up to 2 × I2C FM + interfaces (SMBus/PMBus)
- 1 × I3C
- Up to 3 × USARTs (ISO7816 interface, LIN, IrDA, modem control), 2 × UARTs, and 1 × LPUART
- Up to 3 × SPIs with full‑duplex I2S for audio-class accuracy through external clock, and up to 3 × additional SPIs derived from 3 × USARTs when configured in synchronous mode
- 1 × FDCAN
- 1 × USB 2.0 full-speed host and device
- Low-power modes
- Sleep, Stop, and Standby modes
- Up to 86 I/O ports with interrupt capability
- HASH (SHA-1, SHA-224, SHA-256), HMAC
- Mathematical coprocessor
- CORDIC for trigonometric functions acceleration
- 1 × True random number generator
- Bootloader support on USART, FDCAN, USB, and SPI interfaces
- Flexible life-cycle scheme with RDP and password-protected regression
- 96-bit unique ID
- All packages are ECOPACK2 compliant.
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STMicroelectronics - STM32C551KE
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Quality and Reliability
| Part Number | RoHS Compliance Grade | Grade | Material Declaration** |
|---|---|---|---|
| STM32C551KET6 | Ecopack2 | Industrial | |
| STM32C551KEU6 | Ecopack2 | Industrial | |
| STM32C551KEU6TR | Ecopack2 | Industrial | |
STM32C551KET6
Package:
IndustrialMaterial Declaration**:
STM32C551KEU6
Package:
IndustrialMaterial Declaration**:
STM32C551KEU6TR
Package:
IndustrialMaterial Declaration**:
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
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Sample & Buy
| Part Number | Marketing Status | Budgetary Price (US$)*/Qty | Order from ST | Order from distributors | Package | Packing Type | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Operating temperature (°C) | Operating Temperature (°C) (max) | D/A Converters (typ) (12-bit) | Timers (typ) (16-bit) | Timers (typ) (32-bit) | Number of Channels (typ) | SMPS | Number of Channels (typ) | UART (typ) | I/Os (High Current) | Integrated op-amps | Comparator | SPI (typ) | USART (typ) | Number of Channels (typ) | I2S (typ) | Advanced Motor Control Timers | CAN (2.0) | CAN (FD) | ||
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| STM32C551KEU6 | | | distributors No availability of distributors reported, please contact our sales office |
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| STM32C551KET6 | | | distributors No availability of distributors reported, please contact our sales office |
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| STM32C551KEU6TR | | | distributors No availability of distributors reported, please contact our sales office |
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STM32C551KEU6 Active
STM32C551KET6 Active
STM32C551KEU6TR Active
(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors