STM32L151RBT6 STMicroelectronics, STM32L151RBT6 Datasheet - Page 23

• Manufacturer Part Number: STM32L151RBT6
• Description: MCU ARM 128KB FLASH 64LQFP
• Manufacturer: STMicroelectronics
• Series: STM32r

Specifications of STM32L151RBT6

• Core Processor: ARM® Cortex-M3™
• Core Size: 32-Bit
• Speed: 32MHz
• Connectivity: I²C, IrDA, LIN, SPI, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT
• Number Of I /o: 51
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Eeprom Size: -
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 1.65 V ~ 3.6 V
• Data Converters: A/D 20x12b; D/A 2x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-LFQFP
• Processor Series: STM32L151
• Core: ARM Cortex M3
• Data Bus Width: 32 bit
• Data Ram Size: 16 KB
• Interface Type: I2C, SPI, USART
• Maximum Clock Frequency: 32 MHz
• Number Of Programmable I/os: 51
• Number Of Timers: 6
• Operating Supply Voltage: 1.8 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Cpu Family: STM32
• Device Core: ARM
• Device Core Size: 32b
• Frequency (max): 32MHz
• Total Internal Ram Size: 16KB
• # I/os (max): 51
• Number Of Timers - General Purpose: 8
• Operating Supply Voltage (typ): 2.5/3.3V
• Operating Supply Voltage (max): 3.6V
• Operating Supply Voltage (min): 1.8V
• On-chip Adc: 20-chx12-bit
• On-chip Dac: 2(2-chx12-bit)
• Instruction Set Architecture: RISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 64
• Package Type: LQFP
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 497-11193

STM32L151xx, STM32L152xx
3.15
3.15.1
3.15.2
3.15.3
3.15.4
3.16
Communication interfaces
I²C bus
Up to two I²C bus interfaces can operate in multimaster and slave modes. They can support
standard and fast modes.
They support dual slave addressing (7-bit only) and both 7- and 10-bit addressing in master
mode. A hardware CRC generation/verification is embedded.
They can be served by DMA and they support SM Bus 2.0/PM Bus.
Universal synchronous/asynchronous receiver transmitter (USART)
All USART interfaces are able to communicate at speeds of up to 4 Mbit/s. They provide
hardware management of the CTS and RTS signals. They support IrDA SIR ENDEC, are
ISO 7816 compliant and have LIN Master/Slave capability.
All USART interfaces can be served by the DMA controller.
Serial peripheral interface (SPI)
Up to two SPIs are able to communicate at up to 16 Mbits/s in slave and master modes in
full-duplex and simplex communication modes. The 3-bit prescaler gives 8 master mode
frequencies and the frame is configurable to 8 bits or 16 bits. The hardware CRC
generation/verification supports basic SD Card/MMC modes.
Both SPIs can be served by the DMA controller.
Universal serial bus (USB)
The STM32L15xxx embeds a USB device peripheral compatible with the USB full-speed
12 Mbit/s. The USB interface implements a full-speed (12 Mbit/s) function interface. It has
software-configurable endpoint setting and supports suspend/resume. The dedicated
48 MHz clock is generated from the internal main PLL (the clock source must use a HSE
crystal oscillator).
CRC (cyclic redundancy check) calculation unit
The CRC (cyclic redundancy check) calculation unit is used to get a CRC code from a 32-bit
data word and a fixed generator polynomial.
Among other applications, CRC-based techniques are used to verify data transmission or
storage integrity. In the scope of the EN/IEC 60335-1 standard, they offer a means of
verifying the Flash memory integrity. The CRC calculation unit helps compute a signature of
the software during runtime, to be compared with a reference signature generated at link-
time and stored at a given memory location.
Doc ID 17659 Rev 4
Functional overview
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