BL654 Datasheet - Laird

BL654 Bluetooth module

24 5.1 Power Management 24 5.2 BL654 Power Supply Options 24 5.3 Clocks and Timers 26 5.4 Radio Frequency (RF) 27 5.5 NFC 27 5.6 UART Interface 28 5.7 USB interface 29 5.8 SPI Bus 30 5.9 I2C Interface 30 5.10 General Purpose I/O, ADC, PWM and FREQ 31 5.11 nRESET pin 32 5.12 Two-wire Interface .

Version 1.8 Version 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 Date 24 June 2018 29 June 2018 04 Sept 2018 20 Sept 2018 03 Oct 2018 13 Nov 2018 03 Dec 2018 03 Dec 2018 22 Mar 2019 Notes Initial Production Release Added certification and BT SIG information Added new product photos; updated BT SIG and Ordering information Corrected antenna type for FlexPIFA / FlexNotch in Table 25. Added note re: no support for Nordic SDK. Updated Standby Doze ram retention to 256k Updated FCC and IC regulatory sectio.

BL654 Datasheet (3.20 MB)