Apejuwe
Awọn ẹrọ STM32L452xx jẹ awọn oluṣakoso microcontroller-kekere ti o da lori iṣẹ giga Arm® Cortex®-M4 32-bit RISC mojuto ti n ṣiṣẹ ni igbohunsafẹfẹ ti o to 80 MHz.Kotesi-M4 mojuto ṣe ẹya ẹya aaye Lilefoofo kan (FPU) konge ẹyọkan ti o ṣe atilẹyin fun gbogbo Arm® awọn ilana ṣiṣe data-konge kanṣoṣo ati awọn iru data.O tun ṣe eto kikun ti awọn ilana DSP ati ẹyọ aabo iranti (MPU) eyiti o mu aabo ohun elo pọ si.Awọn ẹrọ STM32L452xx ṣe ifibọ awọn iranti iyara giga (Iranti filasi to 512 Kbyte, 160 Kbyte ti SRAM), wiwo awọn iranti iranti Quad SPI kan (wa lori gbogbo awọn idii) ati ibiti o gbooro ti I/Os imudara ati awọn agbeegbe ti o sopọ si awọn ọkọ akero APB meji , meji AHB akero ati ki o kan 32-bit olona-AHB akero matrix.Awọn ẹrọ STM32L452xx ṣe ọpọlọpọ awọn ọna aabo fun iranti Flash ifibọ ati SRAM: Idaabobo kika, kikọ aabo, aabo koodu kika ohun-ini ati ogiriina.Awọn ẹrọ naa nfunni ni iyara 12-bit ADC (5 Msps), awọn afiwera meji, ampilifaya iṣiṣẹ kan, ikanni DAC kan, ifipamọ itọkasi foliteji inu, RTC agbara kekere kan, akoko gbogbogbo 32-bit kan, aago PWM 16-bit kan igbẹhin si iṣakoso mọto, mẹrin-idi gbogbo-akoko 16-bit, ati awọn aago agbara kekere 16-bit meji.Ni afikun, to awọn ikanni oye agbara 21 wa.Wọn tun ṣe ẹya boṣewa ati awọn atọkun ibaraẹnisọrọ to ti ni ilọsiwaju, eyun I2Cs mẹrin, SPI mẹta, USARTs mẹta, UART kan ati UART Low-Power kan, SAI kan, SDMMC kan, CAN kan, ohun elo iyara kikun USB kan kere si.STM32L452xx n ṣiṣẹ ni -40 si +85 °C (+105 °C junction) ati -40 si +125 °C (+130 °C junction) awọn sakani iwọn otutu lati 1.71 si 3.6 VDD ipese agbara nigba lilo oluṣakoso LDO inu inu. ati ipese agbara 1.05 si 1.32V VDD12 nigba lilo ipese SMPS ita.Eto okeerẹ ti awọn ipo fifipamọ agbara jẹ ki apẹrẹ awọn ohun elo kekere le ṣee ṣe.Diẹ ninu awọn ipese agbara ominira ni atilẹyin: igbewọle ipese ominira afọwọṣe fun ADC, DAC, OPAMP ati awọn afiwera.A VBAT input mu ki o ṣee ṣe lati ṣe afẹyinti awọn RTC ati awọn iforukọsilẹ afẹyinti.Awọn ipese agbara VDD12 iyasọtọ le ṣee lo lati fori olutọsọna LDO inu nigba ti a ba sopọ si SMPS ita.Idile STM32L452xx nfunni ni awọn idii meje lati awọn idii 48 si 100-pin.
Awọn pato: | |
Iwa | Iye |
Ẹka | Awọn iyika Iṣọkan (ICs) |
Ifibọ - Microcontrollers | |
Mfr | STMicroelectronics |
jara | STM32L4 |
Package | Atẹ |
Ipo apakan | Ti nṣiṣe lọwọ |
mojuto ero isise | ARM® Cortex®-M4 |
Core Iwon | 32-Bit |
Iyara | 80MHz |
Asopọmọra | CANbus, I²C, IrDA, LINbus, QSPI, SAI, SPI, UART/USART, USB |
Awọn agbeegbe | Brown-jade Ṣawari/Tunto, DMA, PWM, WDT |
Nọmba ti I/O | 38 |
Eto Iwon Iranti | 512KB (512K x 8) |
Eto Iranti Iru | FILASI |
EEPROM Iwon | - |
Ramu Iwon | 160k x 8 |
Foliteji - Ipese (Vcc/Vdd) | 1.71V ~ 3.6V |
Data Converter | A/D 10x12b;D/A 1x12b |
Oscillator Iru | Ti abẹnu |
Awọn iwọn otutu ti nṣiṣẹ | -40°C ~ 85°C (TA) |
Iṣagbesori Iru | Oke Oke |
Package / Ọran | 48-UFQFN fara paadi |
Package Device Olupese | 48-UFQFPN (7x7) |
Nọmba Ọja mimọ | STM32L452 |