Installation Instructions

HST-300 Module Datasheet
Bluetooth 5 LE
July 24, 2019
25
P0.
09
In/Ou
t
GPIO/NF
C1
26
P0.10
In/Out
GPIO/NFC2
27
P0.
11
In/Ou
t
GPIO
28
P0.
12
In/Ou
t
GPIO
31
P0.13
In/Out
GPIO
32
P0.
14
In/Ou
t
GPIO/T
RACEDATA[3]
33
P0.15
In/Out
GPIO/TRACEDATA[2]
Pi
n
Name Dir
ection
Des
cription
34
P0.
16
In/Ou
t
GPIO/T
RACEDATA[1]
35
P0.17
In/Out
GPIO
36
P0.
18
In/Ou
t
GPIO/T
RACEDATA[0]/SWO
37
P0.19
In/Out
GPIO
38
P0.
20
In/Ou
t
GPIO/T
RACECLK
39
P0.
21
In/Ou
t
GPIO/RE
SET

40
P0.22
In/Out
GPIO
2
41
P0.
23
In/Ou
t
GPIO
2
42
P0.
24
In/Ou
t
GPIO
2
43
SW
CLK
In
SWD C
lock
44
SWD
IO
In/Ou
t
SWD
IO
17
VCC
Po
wer
+1.
7V to +3.6V
1
1,
2, 3, 4, 5, 16, 18, 29,
30
, 45, 46, 47
GND Power Electrical Ground
Note
1: An internal 4.7µF bulk capacitor is included on the module. However, it is good design practice to add additional
bul
k capacitance as required for your application, i.e. those with heavy GPIO usage and/or current draw.
Note
2: These pins are in close proximity to the nRF52 radio power supply and antenna pins. Radio performance
parameters, such as sensitivity, may be affected by high frequency digital I/O with large sink/source current on these pins.
Nordic recommends using only low frequency, low-drive functions when possible.
Table 3 – HST-300 Pin Descriptions
6. Electrical Specifications
6.1 Absolute Maximum
Ratings
Sy
mbol
Pa
rameter
Min
.
Ma
x.
Un
it
V
CC_MAX
Volta
ge on supply pin
-0.3
3.9
V
V
IO_MAX
Volta
ge on GPIO
pi
ns (V
CC
> 3
.6V)
-0.3
3.9
V
V
IO_
MAX
Volta
ge on GPIO pins (V
CC
≤ 3
.6V)
-0.3
V
CC
+ 0
.3V
V