BB51-EK2700A Silicon Labs

UG511: BB51 Explorer Kit User s Guide The BB51 Explorer Kit is an ultra-low cost, small form factor devel- TARGET DEVICE opment and evaluation platform for the EFM8BB51 Busy Bee 8-bit microcontroller. EFM8BB51 Busy Bee 8-bit microcontroller (EFM8BB51F16I-C-QFN20R) The BB51 Explorer Kit is focused on rapid prototyping and concept creation of multi-pur- Pipelined 8-bit C8051 core with 50 MHz pose applications. It is designed around the EFM8BB51 MCU, which is an ideal device maximum operating frequency family for developing energy-friendly embedded applications. 16 kB flash and 1280 bytes RAM The kit features a USB interface, an on-board SEGGER J-Link debugger, one user-LED KIT FEATURES and button, and support for hardware add-on boards via a mikroBUS socket and a Qwiic connector. The hardware add-on support allows developers to create and proto- User LED and push button type applications using a virtually endless combination of off-the-shelf boards from mik- 2.54 mm breakout pads roE, sparkfun, AdaFruit, and Seeed Studios. mikroBUS socket Qwiic connector SEGGER J-Link on-board debugger Virtual COM port USB-powered SOFTWARE SUPPORT Simplicity Studio ORDERING INFORMATION BB51-EK2700A silabs.com Building a more connected world. Copyright 2021 by Silicon Laboratories Rev. 1.0 Table of Contents 1. Introduction................................3 1.1 Kit Contents...............................3 1.2 Getting Started..............................3 1.3 Hardware Content.............................3 1.4 Kit Hardware Layout............................4 2. Specifications...............................5 2.1 Recommended Operating Conditions ......................5 2.2 Current Consumption............................5 3. Hardware.................................6 3.1 Block Diagram..............................6 3.2 Power Supply ..............................7 3.3 EFM8BB51 Reset.............................7 3.4 Push Button and LED............................7 3.5 On-board Debugger ............................8 3.6 Connectors ...............................8 3.6.1 Breakout Pads ............................8 3.6.2 MikroBUS Socket ...........................9 3.6.3 Qwiic Connector............................10 3.6.4 Debug USB Micro-B Connector.......................10 4. Debugging ............................... 11 4.1 On-board Debugger ............................11 4.2 Virtual COM Port .............................11 5. Schematics, Assembly Drawings, and BOM................... 12 6. Kit Revision History............................ 13 7. Board Revision History and Errata ...................... 14 7.1 Revision History .............................14 7.2 Errata.................................14 silabs.com Building a more connected world. Rev. 1.0 2