STM32L412C8U6 ARM Microcontrollers – MCU Mana Loa-haʻahaʻa FPU Arm Cortex-M4 MCU 80 MHz 64 Kbytes o Flash, USB
♠ wehewehe huahana
| Huahana Huahana | Waiwai Hiʻona |
| Mea hana: | STMicroelectronics |
| Māhele Huahana: | ARM Microcontrollers - MCU |
| RoHS: | Nā kikoʻī |
| moʻo: | STM32L412C8 |
| Kāila kau ʻana: | SMD/SMT |
| Pūʻolo / hihia: | QFN-48 |
| kumu: | ARM Cortex M4 |
| Ka nui o ka hoʻomanaʻo papahana: | 64 kB |
| ʻIkepili kaʻaahi laula: | 32 bit |
| Hoʻoholo ADC: | 2 x 12 bit |
| Ka nui o ka uaki: | 80 MHz |
| Ka helu o nā I/Os: | 38 I/O |
| Nui ʻikepili RAM: | 40 kB |
| Voltage Hoʻolako - Min: | 1.71 V |
| Voltage Hoʻolako - Max: | 3.6 V |
| Mahana hana liʻiliʻi loa: | - 40 C |
| ʻO ka wela hoʻohana kiʻekiʻe loa: | + 85 C |
| Packaging: | pā |
| Analog Supply Voltage: | 1.62 V a 3.6 V |
| Brand: | STMicroelectronics |
| ʻAno RAM ʻikepili: | SRAM |
| ʻAno Interface: | I2C, SPI, UART, USART, USB |
| ʻAi ʻoluʻolu: | ʻAe |
| Ka helu o nā kaha ADC: | 12 Kanal |
| Huahana: | MCU+FPU |
| ʻAno Huahana: | ARM Microcontrollers - MCU |
| ʻAno hoʻomanaʻo papahana: | Flash |
| Ka nui o ka waihona hale hana: | 1560 |
| Māhele ʻāpana: | Nā Microcontrollers - MCU |
| inoa kalepa: | STM32 |
| Nā hola kiaʻi: | ʻO ka manawa kiaʻi, puka makani |
| Huina Weight: | 0.003517 oz |
♠ Ultra-low-power Arm® Cortex®-M4 32-bit MCU+FPU, 100DMIPS, a hiki i 128KB Flash, 40KB SRAM, analog, ext.SMPS
ʻO nā polokalamu STM32L412xx nā microcontrollers ultra-low-power e pili ana i ka hana kiʻekiʻe Arm® Cortex®-M4 32-bit RISC core e hana ana ma ke alapine a hiki i 80 MHz.Hāʻawi ka Cortex-M4 core i kahi kikoʻi Floating point unit (FPU) e kākoʻo ana i nā ʻōlelo aʻoaʻo a me nā ʻano ʻikepili āpau o Arm®.Hoʻokomo pū ia i kahi pūʻulu piha o nā ʻōlelo aʻoaʻo DSP a me kahi ʻāpana pale hoʻomanaʻo (MPU) e hoʻonui ai i ka palekana noi.
Hoʻokomo nā mea STM32L412xx i nā hoʻomanaʻo kiʻekiʻe (Flash memory a hiki i 128 Kbyte, 40 Kbyte o SRAM), kahi Quad SPI Flash memory interface (loaʻa ma nā pūʻolo āpau) a me kahi ākea o nā I/Os i hoʻonui ʻia a me nā peripheral pili i ʻelua mau pahi APB. , ʻelua mau kaʻa kaʻa AHB a me kahi matrix kaʻaahi 32-bit multi-AHB.
Hoʻokomo nā mea STM32L412xx i kekahi mau mea pale no ka hoʻomanaʻo Flash i hoʻokomo ʻia a me SRAM: pale heluhelu, pale kākau, pale helu helu helu proprietary a me Firewall.
Hāʻawi nā hāmeʻa i ʻelua wikiwiki 12-bit ADC (5 Msps), ʻelua mea hoʻohālikelike, hoʻokahi amplifier hana, kahi RTC haʻahaʻa haʻahaʻa, hoʻokahi manawa 32-bit kumu nui, hoʻokahi manawa PWM 16-bit i hoʻolaʻa ʻia i ka mana kaʻa, ʻehā nui- manaʻo 16-bit timers, a me ʻelua 16-bit-mana haʻahaʻa timers.
Eia kekahi, hiki i ka 12 capacitive sensing channels i loaʻa.
Hōʻike pū lākou i nā pilina kamaʻilio maʻamau a me ka holomua, ʻo ia hoʻi ʻekolu I2C, ʻelua SPI, ʻekolu USARTs a me hoʻokahi UART Low-Power, hoʻokahi uila uila uila piha USB.
Hoʻohana ka STM32L412xx ma ka -40 a +85 °C (+105 °C junction) a me -40 a +125 °C (+130 °C junction) mai kahi 1.71 a 3.6 V VDD mana lako i ka wā e hoʻohana ai i loko o ka LDO regulator. a me kahi lako mana 1.00 a 1.32V VDD12 i ka wā e hoʻohana ai i ka lako SMPS waho.Hiki ke hoʻolālā ʻia nā noi mana haʻahaʻa i kahi pūʻulu piha o nā ʻano hoʻopakele mana.
Kākoʻo ʻia kekahi mau lako mana kūʻokoʻa: hoʻokomo kūʻokoʻa kūʻokoʻa analog no ADC, OPAMP a me ka mea hoʻohālikelike.Hiki i kahi hoʻokomo VBAT ke hiki ke hoʻopaʻa i ka RTC a me nā papa inoa hoʻopaʻa.Hiki ke hoʻohana ʻia nā lako mana VDD12 i hoʻolaʻa ʻia e kāʻalo i ka mea hoʻoponopono LDO kūloko ke hoʻopili ʻia i kahi SMPS waho.
Hāʻawi ka ʻohana STM32L412xx i ʻeono pūʻolo mai ka 32 a i ka 64-pin pūʻolo.
• Ka mana haʻahaʻa loa me FlexPowerControl
– 1.71 V a i ka 3.6 V mana lako
– -40 °C a hiki i ka 85/125 °C pae wela
- 300 nA ma ke ʻano VBAT: hāʻawi ʻia no ka RTC a me 32 × 32-bit hoʻopaʻa inoa.
- 16 nA ke ʻano hoʻopaʻa (4 mau ala ala)
- 32 nA mode Standby (4 wakeup pine)
- 245 nA ke ʻano kū hoʻokahi me RTC
– 0.7 µA Kāohi 2 mode, 0.95 μA me RTC
– 79 µA/MHz mode holo (LDO Mode)
– 28 μA/MHz mode holo (@3.3 V SMPS Mode)
- Ke ʻano loaʻa ʻana o ka hui (BAM)
- 4 µs ala mai ke ʻano Stop
- Hoʻoponopono hou i ka Brown out (BOR)
– Matrix pili
• Core: Arm® 32-bit Cortex®-M4 CPU me FPU, Adaptive real-time accelerator (ART Accelerator™) e ʻae ana i ka hoʻokō 0-wait-state mai ka hoʻomanaʻo Flash, alapine a hiki i 80 MHz, MPU, 100DMIPS a me nā kuhikuhi DSP
• ka hoailona hana
– 1.25 DMIPS/MHz (Drystone 2.1)
– 273.55 CoreMark® (3.42 CoreMark/MHz @ 80 MHz)
• ka pae ikehu
– 442 ULPMark-CP®
– 165 ULPMark-PP®
• Nā Punawai Uaki
– 4 a 48 MHz oscillator kristal
- 32 kHz crystal oscillator no RTC (LSE)
– RC i kālai ʻia i loko o ka hale hana 16 MHz (±1%)
– Ka mana haʻahaʻa o loko 32 kHz RC (±5%)
– ʻOi aku ka wikiwiki o loko 100 kHz a 48 MHz oscillator, ʻoki ʻoki ʻia e LSE (ʻoi aku ka maikaʻi ma mua o ± 0.25 % pololei)
- 48 MHz kūloko me ka hoʻihoʻi ʻana i ka uaki
- PLL no ka uaki ʻōnaehana
• A hiki i 52 wikiwiki I/Os, ka nui 5 V-hoomanawanui
• RTC me ka HW alemanaka, alarms a calibration
• A hiki i 12 capacitive sensing channels: kākoʻo touchkey, linear a rotary touch sensors
• 10x mau manawa: 1x 16-bit holomua kaʻa kaʻa, 1x 32-bit a me 2x 16-bit kumu nui, 1x 16-bit kumu, 2x mana haʻahaʻa 16-bit timers (loaʻa ma Stop mode), 2x kiaʻi, SysTick manawa manawa
• Hoʻomanaʻo
- 128 KB Flash panakō hoʻokahi, mālama ʻia ka helu helu helu
- 40 KB o SRAM me 8 KB me ka nānā ʻana i ka parity hardware
- ʻO ka hoʻomanaʻo hoʻomanaʻo Quad SPI me ka mana XIP
• Nā peripheral analog waiwai (mea kūʻokoʻa)
– 2x 12-bit ADC 5 Msps, a hiki i ka 16-bit me ka lako hana oversampling, 200 µA/Msps
- 2x hana hoʻonui me ka PGA i kūkulu ʻia
- 1x mea hoʻohālikelike ultra-haʻahaʻa
– ʻO ka 2.5 V a i ʻole 2.048 V hōʻike manaʻo i hoʻokuʻu ʻia
• 12x mau pilina pili
- USB 2.0 piha-wikiwiki piha hoʻonā liʻiliʻi me LPM a me BCD
– 3x I2C FM+(1 Mbit/s), SMBus/PMBus
- 3x USARTs (ISO 7816, LIN, IrDA, modem)
- 1x LPUART (Hoʻomaha 2 ala ala)
- 2x SPI (a me 1x Quad SPI)
- IRTIM (Infrared interface)
• 14-kanal DMA mana
• Mea hoʻoheheʻe helu random maoli
• Helu helu helu CRC, 96-bit unique ID
• Kākoʻo hoʻomohala: serial wire debug (SWD), JTAG, Embedded Trace Macrocell™
