{"id":83197,"date":"2020-05-29T13:41:57","date_gmt":"2020-05-29T11:41:57","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/dostupna-plata-raspberry-pi-4-s-8-gb-ozu"},"modified":"2020-05-29T13:41:57","modified_gmt":"2020-05-29T11:41:57","slug":"dostupna-plata-raspberry-pi-4-s-8-gb-ozu","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pt\/blog\/news\/dostupna-plata-raspberry-pi-4-s-8-gb-ozu","title":{"rendered":"Placa Raspberry Pi 4 com 8 GB de RAM agora dispon\u00edvel","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Projeto Raspberry Pi anunciou<\/a><\/noindex> uma vers\u00e3o ampliada da placa Raspberry Pi 4, que vem com 8 GB de RAM. O pre\u00e7o da nova vers\u00e3o da placa \u00e9<\/a><\/noindex> $75. Em compara\u00e7\u00e3o, as placas com 2 e 4 GB de RAM s\u00e3o vendidas por 35 e 55 d\u00f3lares, respectivamente. <\/p>\n

O chip BCM2711 usado na placa permite endere\u00e7ar at\u00e9 16 GB de mem\u00f3ria, mas durante o desenvolvimento da placa no ano passado, n\u00e3o havia chips LPDDR4 SDRAM adequados dispon\u00edveis no mercado. Agora a Micron lan\u00e7ou os chips necess\u00e1rios com 8 GB, sobre os quais a nova vers\u00e3o da Raspberry Pi 4 foi constru\u00edda. O fornecimento do chip LPDDR4 SDRAM de 8 GB, mais exigente em termos de energia, tamb\u00e9m exigiu uma pequena atualiza\u00e7\u00e3o dos circuitos de alimenta\u00e7\u00e3o e a realoca\u00e7\u00e3o do conversor de impulso da \u00e1rea pr\u00f3xima \u00e0s portas USB 2.0 para a \u00e1rea pr\u00f3xima ao USB-C.<\/p>\n

Lembramos que a placa Raspberry Pi 4 \u00e9 equipada com o SoC BCM2711 e inclui quatro n\u00facleos ARMv8 Cortex-A72 de 64 bits, operando a uma frequ\u00eancia de 1,5 GHz, e um processador gr\u00e1fico VideoCore VI, que suporta OpenGL ES 3.0 e \u00e9 capaz de decodificar v\u00eddeo H.265 com qualidade 4Kp60 (ou 4Kp30 em dois monitores). A placa possui mem\u00f3ria LPDDR4, um controlador PCI Express, Ethernet gigabit, duas portas USB 3.0 (mais duas portas USB 2.0), duas portas Micro HDMI (4K), GPIO de 40 pinos, DSI (conex\u00e3o de tela sens\u00edvel ao toque), CSI (conex\u00e3o de c\u00e2mera) e um chip de comunica\u00e7\u00e3o sem fio, que suporta o padr\u00e3o 802.11ac, opera nas frequ\u00eancias de 2.4GHz e 5GHz e Bluetooth 5.0. A alimenta\u00e7\u00e3o pode ser fornecida atrav\u00e9s da porta USB-C (anteriormente era utilizada a USB micro-B), atrav\u00e9s do GPIO ou por meio de um m\u00f3dulo adicional PoE HAT (Power over Ethernet). Nos testes de desempenho, a Raspberry Pi 4 ultrapassa a Raspberry Pi 3B+ de 2 a 4 vezes, e a Raspberry Pi 1 em 40 vezes.
\n

\"Placa<\/a><\/noindex><\/center><\/p>\n

<\/a><\/noindex><\/p>\n

Fonte: opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u041f\u0440\u043e\u0435\u043a\u0442 Raspberry Pi \u0430\u043d\u043e\u043d\u0441\u0438\u0440\u043e\u0432\u0430\u043b \u0440\u0430\u0441\u0448\u0438\u0440\u0435\u043d\u043d\u044b\u0439 \u0432\u0430\u0440\u0438\u0430\u043d\u0442 \u043f\u043b\u0430\u0442\u044b Raspberry Pi 4, \u043f\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u043c\u044b\u0439 \u0441 8 \u0413\u0411 \u041e\u0417\u0423. \u0421\u0442\u043e\u0438\u043c\u043e\u0441\u0442\u044c \u043d\u043e\u0432\u043e\u0433\u043e \u0432\u0430\u0440\u0438\u0430\u043d\u0442\u0430 \u043f\u043b\u0430\u0442\u044b \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 $75. \u0414\u043b\u044f \u0441\u0440\u0430\u0432\u043d\u0435\u043d\u0438\u044f \u043f\u043b\u0430\u0442\u044b \u0441 2 \u0438 4 \u0413\u0431 \u041e\u0417\u0423 \u043f\u0440\u043e\u0434\u0430\u044e\u0442\u0441\u044f \u0437\u0430 35 \u0438 55 \u0434\u043e\u043b\u043b\u0430\u0440\u043e\u0432 \u0421\u0428\u0410 \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0435\u043d\u043d\u043e. \u0418\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u043c\u044b\u0439 \u0432 \u043f\u043b\u0430\u0442\u0435 \u0447\u0438\u043f BCM2711 \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u0430\u0434\u0440\u0435\u0441\u043e\u0432\u0430\u0442\u044c \u0434\u043e 16 \u0413\u0411 \u043f\u0430\u043c\u044f\u0442\u0438, \u043d\u043e \u0432 \u043c\u043e\u043c\u0435\u043d\u0442 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u043f\u043b\u0430\u0442\u044b \u0432 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