Nanjing Branch of a micro-:
Si24R1 GFSK wireless transceiver chip
Si24R1 designed for low power wireless communications applications. Operating frequency is 2400MHz-2525MHz, a total of 126 channels 1MHz bandwidth; Typical applications: Active RFID, NFC, low-power wireless sensor network node, the smart grid, intelligent home, wireless remote control, somatosensory equipment, wireless data transmission.
Si24R2
Si24R2 is a work in the 2.4GHz ISM band wireless transmitter chip power optimization, power shutdown mode only 300nA, 10M SPI data transceiver hardware interrupt output. Fully compatible Si24R1
Si24R2E
Si24R2E is a work in the 2.4GHz ISM band, designed for low power active RFID applications where design, without opening fired automatically (loading and transmitting, after the completion of data transmission, the chip goes to sleep immediately battery can 5 years above) function, chip configuration and function is identical with Si24R2. May not require external the MCU , i.e. only a small amount of external passive components may be composed of a wireless data transmission system, built-in hardware Watchdog and a low voltage alarm system.