User`s manual

A2541R24x – User’s Manual Page 25 of 36
Release Date 11/22/13
3.3.2. A2541R24x20 (Module with Emmoco EM-Ware Firmware)
Figure 6 A2541R24x20 Module pin-out (viewed from top side)
Where applicable:
NC = “NO Connection”. Pin is
NOT connected internally.
DNC = “Do Not Connect”. Pin
reserved for internal use, ensure
mating footprint pads are isolated.
GND = “Ground”. Connect the
maximum number possible
(minimum one for proper
operation).
References in (parentheses) show
native CC2541 pin function. These
pins are configured as inputs, and
are not utilized by the firmware.