A2541R24x
– User’s Manual
Page 23 of 36
Release Date 11/22/13
3.2.
Operating Conditions
Table 5 Operating conditions
Parameter
Min
Max
Unit
Condition/Note
Supply Voltage (Vdd)
2
3.6
V
Temperature Range
-40
+85
˚C
3.3.
Pin Out
The A2541R24A and A2541R24C radios share a common pin-out and foot print, thus enabling
the use of the same application PCB layout for US/Europe and low power (short range) versus
higher power (long range). Depending on the firmware inside the module, pin functionalities
change.
3.3.1.
A2541R24x10 (Module with TI BLE Stack)
A module with no firmware will show the references to the native CC2541 transceiver chip and
any additional functions added to it. Below the pin-out is shown:
Figure 5
A2541R24x10
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).
