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昂瑞微電子旗下OM6651A——第二顆車規(guī)級低功耗藍(lán)牙芯片,成功通過涵蓋機(jī)械應(yīng)力、溫濕度循環(huán)等7大類共41項極限測試,斬獲賽寶實驗室頒發(fā)的AEC Q-100 Grade1認(rèn)證(-40~125℃)。這顆采用3x2.7x0.5mm極薄LGA封裝的芯片,以超低功耗與越級穩(wěn)定性突破國產(chǎn)車規(guī)級芯片性能邊界,確保在極寒、高溫等極端工況下依然穩(wěn)定運(yùn)行,重新定義車載無線連接的技術(shù)標(biāo)桿。 OM6651A 是一款功率優(yōu)化的片上系統(tǒng)(SOC)解決方案,適用于藍(lán)牙低功耗(Bluetooth Low Energy)和專有 2.4GHz 頻段應(yīng)用場景。其核心集成特性如下: 集成高性能、低功耗的射頻(RF)收發(fā)器,同時包含藍(lán)牙基帶與豐富的外設(shè) IO 擴(kuò)展接口。 內(nèi)置電源管理單元(PMU),可實現(xiàn)高效的電源管理,降低整體功耗。 性能標(biāo)桿:搭載ARM Cortex M4內(nèi)核(64MHz主頻),配備80KB SRAM+1MB Flash,其高性能射頻收發(fā)機(jī)可支持無線BMS大規(guī)模組網(wǎng)應(yīng)用場景的超低延遲數(shù)據(jù)處理。 能效革命:峰值功耗僅4.2mA@0dBm(發(fā)射)/3.4mA@1Mbps(接收),在胎壓監(jiān)測應(yīng)用中可匹配輪胎全生命周期使用需求。-98dBm超高靈敏接收與8dBm強(qiáng)發(fā)射功率,確保復(fù)雜車載環(huán)境下的信號穿透力。 空間魔術(shù):較傳統(tǒng)方案減薄約41.18%,以0.5mm超薄封裝通過嚴(yán)苛的AEC Q-100 Grade1認(rèn)證測試,彰顯芯片可靠性設(shè)計的嚴(yán)謹(jǐn)性。 OM6651A性能特點(diǎn)如下: 射頻部分: ? -98dBm sensitivity @ 1Mbps GFSK ? TX Power -30 to +8dBm ? AGC (Auto Gain Control) ? RSSI (1dB Resolution) MCU部分: ? ARM? Cortex?-M4, max 64MHz ? SWD interface 存儲空間 ? EFUSE: 256-bit ? SRAM: 80KB ? Serial Flash: 1MB ? I-Cache RAM: 8KB 時鐘: ? 32MHz & 32.768kHz crystal oscillators ? 32MHz & 32.768kHz RC oscillators 無線鏈路: ? BT 5.4 LE PHY, link controller ? Proprietary 2.4-GHz link controller 電池管理單元 ? Single power supply voltage: 1.71V ~ 3.6V ? 3.4mA peak current in RX ? 4.2mA peak current in TX (0dBm) ? 1.2uA in sleep mode (with 16K RAM retention, 32KHz RC) ? Integrated DCDC BUCK Converter 支持的協(xié)議 ? Compatible with Bluetooth 5.4 ? Supported data rates: 1Mbps, 2Mbps (BLE) ? Multiple configurable air data rate from 25Kbps to 2Mbps (2.4G) ? Supports mesh network ? Sample applications and profiles ? Supports OTA 外設(shè)接口 ? Up to 15 General Purpose I/O pins ? 8 x DMA ? 2 x UART ? 1 x I2C interface (master only) ? 2 x SPI interface ? 1 x 16-bit Timer/Counter with 4 Compare/Capture/PWM channels ? 2 x 16-bit Timer/Counter with 4 Compare/PWM channels (These two timers can combine to one 32-bit PWM timer) ? 1 x 32-bit Real Time Counter with 3 Compare channels ? 1 x 16-bit Low Energy Timer with 2 Compare/PWM channels ? 1 x Watchdog Timer ? 8 channels single-end 12-bit GPADC, up to 333.3ksps (precision and sample rate can be configured) 安全與隱私 ? AES HW encryption ? Support AES-256/AES-128 key ? HW Random Number Generator 封裝及工作溫度 ? OM6651A: LGA 3mmx2.7mm ? AEC-Q100 Grade1 ? -40 ℃ ~ +125 ℃ 芯片引腳圖如下:
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