关于 nRF51422
Nordic Semiconductor nRF51422 ANT SoC 是世界第一款ANT 应用的单芯片解决方案。应用在成本、功耗和尺寸受限(运动、健身以及保健传感器)的理想之选。它与 nRF51822 相同,但提供预编程的S210 ANT 协议堆栈。S210 协议堆栈功能包括:
异步和事件驱动SVC 的 API;
运行时保护;
广播、确认和突发(Burst)模式;
支持多达 8 个并行 ANT通道;
60kbps突发传输率(Burst rate) – 比上一代要快 300%;
少于 32kB 的代码和 2kB 的 RAM,为应用程序留有超过224kB 的闪存和 14kB 的 RAM。
nRF51422与nRF514 相互配合,提供全面的 ANT+ 配置文件、ANT FS 和示例应用集合。
nRF51422
ANT? System on Chip
Product Specification v1.2
Key Features
? re-programmed S210 SoftDevice featuring ANT? rotocol
? 2.4 GHz transceiver
? -90 dBm sensitivity in ANT mode
? 250 kbps, 1 Mbps, 2 Mbps supported data rates
? TX ower -20 to +4 dBm in 4 dB steps
? TX ower -30 dBm Whisper mode
? 13 mA peak RX, 10.5 mA peak TX (0 dBm)
? RSSI (1 dB resolution)
? ARM?-M0 32 bit processor
? 275 μA/MHz running from flash memory
? 150 μA/MHz running from RAM
? Serial Wire Debug (SWD)
? Memory
? 256 kB embedded flash program memory
? 16 kB RAM
? Support for non-concurrent multiprotocol operation
? On-air compatibility with nRF24L series
? Flexible ower Management
? Supply voltage range 1.8 V to 3.6 V
? 2.5 μs wake-up using 16 MHz RCOSC
? 0.4 μA @ 3 V OFF mode
? 0.5 μA @ 3 V in OFF mode + 1 region RAM
retention
? 2.3 μA @ 3 V ON mode, all blocks IDLE
? 8/9/10 bit ADC - 8 configurable channels
? 31 General urpose I/O ins
? One 32 bit and two 16 bit timers with counter mode
? SPI Master
? Two-wire Master (I2C compatible)
? UART (CTS/RTS)
? CPU independent rogrammable eripheral Interconnect
(PPI)
? Quadrature Decoder (QDEC)
? AES HW encryption
? Real Timer Counter (RTC)
? Package variants
? QFN48 package, 6 x 6 mm
? WLCSP package, 3.50 x 3.83 mm
Applications
? ersonal Area Networks
? Health/fitness sensor and monitor
devices
? Medical devices
? Key-fobs + wrist watch
? Home/industrial automation
? Environmental sensor networks
? Active RFID
? Logistics/goods tracking
? Audience-response systems
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