Data Sheet

BMD-341 - Data sheet
UBX-19033643 - R03 Contents Page 3 of 36
Contents
Document information ................................................................................................................................ 2
Contents .......................................................................................................................................................... 3
1 Functional description ......................................................................................................................... 5
1.1 Features ........................................................................................................................................................ 5
1.2 Applications ................................................................................................................................................. 6
1.3 Block diagram .............................................................................................................................................. 6
1.4 Radio performance ..................................................................................................................................... 7
2 Pin definition ........................................................................................................................................... 9
2.1 Pin assignment ............................................................................................................................................ 9
2.2 Peripheral pins ...........................................................................................................................................11
2.3 BMD-300 series footprint compatibility and migration ....................................................................12
2.3.1 BMD-300/301/330/360 to BMD-341 pad differences ..............................................................13
2.3.2 BMD-300/301/330/360 to BMD-341 design migration ...........................................................13
2.4 BMD-341 fan-out example ......................................................................................................................14
3 Electrical specifications ................................................................................................................... 15
3.1 Absolute maximum ratings ....................................................................................................................15
3.2 Operating conditions ................................................................................................................................15
3.3 Power and DCDC configuration ..............................................................................................................15
3.3.1 USB power ..........................................................................................................................................16
3.3.2 Normal (LV) power mode examples ..............................................................................................16
3.3.3 High voltage (HV) power mode examples ....................................................................................17
3.4 General purpose I/O ..................................................................................................................................18
3.5 Module reset ..............................................................................................................................................18
3.6 Debug and programming .........................................................................................................................19
3.7 Clocks ..........................................................................................................................................................19
3.7.1 32.768 kHz crystal (LFXO) ..............................................................................................................19
3.7.2 32.768 kHz clock source comparison ...........................................................................................19
4 Firmware ................................................................................................................................................ 20
4.1 Factory image ............................................................................................................................................20
4.2 SoftDevices ................................................................................................................................................20
4.2.1 S140 ....................................................................................................................................................20
4.2.2 S340 ....................................................................................................................................................20
4.2.3 IEEE 802.15.4 (Thread and Zigbee) ..............................................................................................21
4.3 Bluetooth address .....................................................................................................................................21
5 Mechanical specifications ............................................................................................................... 22
5.1 Dimensions .................................................................................................................................................22
5.2 Recommended PCB land pads ...............................................................................................................22
5.3 Module marking .........................................................................................................................................23
6 RF design notes ................................................................................................................................... 24
6.1 Recommended RF layout and ground plane ........................................................................................24