STM32L412C8U6 ARM Microcontrollers – MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 64 Kbytes na Flash, USB
♠ Bayanin samfur
| Siffar Samfur | Siffar Darajar |
| Mai ƙira: | STMicroelectronics |
| Rukunin samfur: | ARM Microcontrollers - MCU |
| RoHS: | Cikakkun bayanai |
| Jerin: | Saukewa: STM32L412C8 |
| Salon hawa: | SMD/SMT |
| Kunshin / Harka: | QFN-48 |
| Core: | ARM Cortex M4 |
| Girman Ƙwaƙwalwar Shirin: | 64kb ku |
| Fadin Bus Data: | 32 bit |
| Ƙimar ADC: | 2 x12 ku |
| Matsakaicin Matsakaicin agogo: | 80 MHz |
| Adadin I/Os: | 38 I/O |
| Girman RAM Data: | 40kb ku |
| Samar da Wutar Lantarki - Min: | 1.71 V |
| Ƙarfin Ƙarfafawa - Max: | 3.6 V |
| Mafi ƙarancin zafin aiki: | -40 C |
| Matsakaicin Yanayin Aiki: | + 85 C |
| Marufi: | Tire |
| Analog Supply Voltage: | 1.62 zuwa 3.6 V |
| Alamar: | STMicroelectronics |
| Nau'in RAM Data: | SRAM |
| Nau'in Mu'amala: | I2C, SPI, UART, USART, USB |
| Danshi Mai Hankali: | Ee |
| Adadin Tashoshin ADC: | Tashoshi 12 |
| Samfura: | MCU+FPU |
| Nau'in Samfur: | ARM Microcontrollers - MCU |
| Nau'in Ƙwaƙwalwar Shirin: | Filasha |
| Yawan Kunshin Masana'anta: | 1560 |
| Rukuni: | Microcontrollers - MCU |
| Sunan kasuwanci: | Saukewa: STM32 |
| Watchdog Timers: | Watchdog Timer, Windowed |
| Nauyin Raka'a: | 0.003517 oz |
♠ Ultra-low-power Arm® Cortex®-M4 32-bit MCU+FPU, 100DMIPS, har zuwa 128KB Flash, 40KB SRAM, analog, ext.SMPS
Na'urorin STM32L412xx masu sarrafa ƙananan ƙananan ƙarfi ne bisa babban aikin Arm® Cortex®-M4 32-bit RISC core wanda ke aiki a mitar har zuwa 80 MHz.Cortex-M4 core yana fasalta madaidaicin madaidaicin ruwa (FPU) wanda ke goyan bayan duk umarnin sarrafa bayanai guda ɗaya na Arm® da nau'ikan bayanai.Hakanan yana aiwatar da cikakken saitin umarnin DSP da naúrar kariyar ƙwaƙwalwar ajiya (MPU) wanda ke haɓaka amincin aikace-aikacen.
Na'urorin STM32L412xx sun haɗa manyan abubuwan tunawa masu sauri (Ƙwaƙwalwar Flash har zuwa 128 Kbyte, 40 Kbyte na SRAM), ƙa'idar ƙwaƙwalwar Quad SPI Flash (akwai akan duk fakiti) da babban kewayon haɓaka I/Os da na'urori masu alaƙa da bas ɗin APB guda biyu. , motocin bas guda biyu na AHB da matrix na bas mai 32-bit multi-AHB.
Na'urorin STM32L412xx sun haɗa hanyoyin kariya da yawa don shigar da ƙwaƙwalwar Flash da SRAM: kariyar karantawa, rubuta kariya, kariyar karanta lambar mallakar mallaka da Firewall.
Na'urorin suna ba da sauri 12-bit ADC (5 Msps), masu kwatanta guda biyu, amplifier ɗaya aiki, RTC mai ƙarancin ƙarfi, maƙasudin maƙasudi 32-bit mai ƙidayar lokaci ɗaya, mai ƙidayar PWM 16-bit wanda aka keɓe don sarrafa motar, gabaɗaya huɗu- manufa 16-bit masu ƙidayar lokaci, da masu ƙididdige ƙididdiga masu ƙarancin 16-bit guda biyu.
Bugu da kari, har zuwa tashoshi 12 masu iya ji suna samuwa.
Hakanan sun ƙunshi daidaitattun hanyoyin sadarwa na zamani da ci gaba, wato I2C guda uku, SPI biyu, USARTs uku da UART mai ƙarancin ƙarfi ɗaya, na'urar cikakken sauri na USB ɗaya ƙasa.
STM32L412xx yana aiki a cikin -40 zuwa +85 °C (+105 °C junction) da -40 zuwa +125 °C (+130 °C junction) zafin jiki ya tashi daga 1.71 zuwa 3.6V VDD wutar lantarki lokacin amfani da mai sarrafa LDO na ciki. da wutar lantarki 1.00 zuwa 1.32V VDD12 lokacin amfani da wadatar SMPS na waje.Cikakken tsari na hanyoyin ceton wutar lantarki yana ba da damar ƙirar aikace-aikacen ƙananan ƙarfi.
Ana goyan bayan wasu kayan wuta masu zaman kansu: shigarwar wadatar mai zaman kanta ta analog don ADC, OPAMP da kwatance.Shigar da VBAT yana ba da damar yin ajiyar RTC da rijistar madadin.Ana iya amfani da keɓantaccen kayan wuta na VDD12 don ƙetare mai sarrafa LDO na ciki lokacin da aka haɗa su zuwa SMPS na waje.
Iyalin STM32L412xx suna ba da fakiti shida daga fakiti 32 zuwa 64-pin.
• Ƙarfin ƙarfi-ƙananan ƙarfi tare da FlexPowerControl
- 1.71 V zuwa 3.6V samar da wutar lantarki
- -40 °C zuwa 85/125 °C kewayon zafin jiki
- 300 nA a cikin yanayin VBAT: wadata don RTC da 32 × 32-bit rajistan ayyukan
- Yanayin rufe 16 nA (filin farkawa 4)
- Yanayin jiran aiki 32 nA (filin farkawa 4)
- 245 nA Yanayin jiran aiki tare da RTC
- 0.7 µA Tsaya 2 yanayin, 0.95 µA tare da RTC
- Yanayin gudu 79 µA/MHz (Yanayin LDO)
- Yanayin gudu 28 μA/MHz (@3.3V Yanayin SMPS)
- Yanayin sayan tsari (BAM)
– 4µs farkawa daga Yanayin Tsaya
- Sake saitin launin ruwan kasa (BOR)
– Interconnect matrix
• Mahimmanci: Arm® 32-bit Cortex®-M4 CPU tare da FPU, Mai haɓakawa na ainihin-lokaci (ART Accelerator™) yana ba da izinin 0-jihar kisa daga ƙwaƙwalwar Flash, mita har zuwa 80 MHz, MPU, 100DMIPS da umarnin DSP
• Alamar aiki
- 1.25 DMIPS/MHz (Drystone 2.1)
- 273.55 CoreMark® (3.42 CoreMark/MHz @ 80 MHz)
• Ma'aunin makamashi
- 442 ULPMark-CP®
- 165 ULPMark-PP®
• Tushen agogo
- 4 zuwa 48 MHz crystal oscillator
- 32 kHz crystal oscillator don RTC (LSE)
- Na ciki 16 MHz masana'anta-datsa RC (± 1%)
- Ƙarfin ƙarfi na ciki 32 kHz RC (± 5%)
- Multispeed na ciki 100 kHz zuwa 48 MHz oscillator, LSE da aka gyara ta atomatik (mafi kyau ± 0.25% daidaito)
- 48 MHz na ciki tare da dawo da agogo
- PLL don agogon tsarin
• Har zuwa 52 mai sauri I/Os, mafi yawan 5 V-mai haƙuri
• RTC tare da kalanda HW, ƙararrawa da daidaitawa
• Har zuwa tashoshi masu ƙarfin ƙarfi 12: goyan bayan maɓallin taɓawa, madaidaiciya da firikwensin taɓawa
• Masu ƙidayar lokaci 10x: 1x 16-bit ci-gaba motor-control, 1x 32-bit da 2x 16-bit general manufa, 1x 16-bit asali, 2x low-power 16-bit masu ƙidayar lokaci (samuwa a Yanayin Tsayawa), 2x masu sa ido, SysTick mai lokaci
• Tunatarwa
- 128 KB Flash banki guda ɗaya, kariyar karanta bayanan mallakar mallakar
- 40 KB na SRAM gami da 8 KB tare da duba daidaiton kayan aiki
- Ƙwararren ƙwaƙwalwar Quad SPI tare da damar XIP
• wadatattun kayan aikin analog (samun mai zaman kansa)
- 2x 12-bit ADC 5 Msps, har zuwa 16-bit tare da oversampling hardware, 200 µA/Msps
- 2x amplifiers masu aiki tare da ginanniyar PGA
- 1x ultra-low-power comparator
- Madaidaicin 2.5 V ko 2.048 V nuni ƙarfin lantarki buffered fitarwa
• 12x sadarwa musaya
– USB 2.0 cikakken-gudun crystal kasa bayani tare da LPM da BCD
- 3x I2C FM+ (1 Mbit/s), SMBus/PMBus
- 3x USARTs (ISO 7816, LIN, IrDA, modem)
- 1 x LPUART (Dakatar da farkawa 2)
- 2x SPIs (da 1 x Quad SPI)
- IRTIM (Infrared dubawa)
• Mai sarrafa tashar DMA 14
• Gaskiya bazuwar lamba janareta
• Ƙungiyar lissafin CRC, ID na musamman na 96-bit
• Tallafin haɓakawa: serial debug waya (SWD), JTAG, Trace Macrocell™
