Bluetooth Low Energy® (BLE) module of WT51822-S1 is the next generation BLE4.0 module released by Wireless-Tag technology. The modules use nRF51822-QFAA from NORDIC as the controller chips. With its small form factor, low power, high economic Bluetooth radio, WT51822-S1 can easily be added in your system and help to promote the design process.

Features

• Operating temperature: -25℃~75℃, typical 25℃
• 2.4 GHz transceiver
  
  • -93 dBm sensitivity in Bluetooth® low energy mode
  • 250 kbps, 1 Mbps, 2 Mbps supported data rates
  • TX Power -20 to +4 dBm in 4 dB steps
  • TX Power -30 dBm Whisper mode
  • 13 mA peak RX, 10.5 mA peak TX (0 dBm)
  •  RSSI (1 dB resolution)
•  ARM® Cortex™-M0 32 bit processor
  
  • 275 ^A/MHz running from flash memory
  • 150 ^A/MHz running from RAM
  • Serial Wire Debug (SWD)
•  Memory
  • 256 KB embedded flash program memory
  • 16 KB RAM
•  Flexible Power Management
  • Supply voltage range 2.0 V to 3.6 V
  • 2.5 ^s wake-up using 16 MHz RCOSC
  • 0.4 ^A @3V OFF mode
  • 0.5 ^A @3V in OFF mode + 1 region RAM retention
  • 2.3 ^A @3V ON mode, all blocks IDLE
• 8/9/10 bit ADC - 8 configurable channels
• 31 General Purpose I/O Pins
• One 32 bit and two 16 bit timers with counter mode
• SPI Master
• UART (CTS/RTS)
• Two-wire Master (I2C compatible)
• Quadrature Decoder (QDEC)
• AES HW encryption
• Real Timer Counter (RTC)
• 16 MHz crystal
• Balun
• AES HW encryption
• Package variants
• WT51822-S1, 16.5 x16.5 mm