User's Manual

BMD-100 Module Datasheet
Bluetooth 4.1 LE
1/5/2014
BMD-100-DS-V0.5 PRELIMINARY Page 5 of 17
6. Pin Descriptions
Figure 3- Pin out (Top View)
Pin description
Pin
Name
Direction
Description
14
SPI_CS
In
SPI slave select = SPI enable.
17
SPI_CLK
In
SPI clock (max 8 MHz).
16
SPI_MOSI
In
Master output, slave input.
15
SPI_MISO
Out
Master input, slave output.
18
SPI_IRQ
Out
Slave has data for master.
13
nRESET
In
Reset and deep sleep control
10
SXTAL0
In
32 kHz Crystal (optional)
12
SXTAL1
In
32 kHz Crystal (optional)
19
VCC
Pwr
+1.7 to +3.6VDC input 1
A,B,C,D,E,F,7,9,20
GND
Pwr
Electrical Ground
1,2,3,11
RESERVED
N/A
Connect to Ground
4,5,6,8
RESERVED
N/A
Leave Unconnected
Table 3 – Pin Descriptions
Note 1: An external capacitor for V
CC
is not strictly required, however a 1µF -
4.7µF ceramic capacitor is recommended.