Data Sheet

Bluegiga Technologies Oy
Page 8 of 44
2 Pinout and Terminal Description
Pins 1 and 52 (GND)
are not connected
and have been
removed
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25 26
27
28 29
51
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
59 58
57
56 55 54 53
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND GND GND GND
GND
RFGND
RF
GND
GND
GND
GND
GND
GND
VDD_PA
PIO2
PIO3
UART_RTS
UART_RX
GND
USB+
USB-
UART_CTS
PCM_IN
PCM_CLK
PCM_SYNC
GND
GND
GND
GND GND GND
PCM_OUT
PIO4
GND
VDD
RESET
PIO6
PIO7
GND
SPI_CSB
SPI_CLK
SPI_MISO
SPI_MOSI
PIO5
UART_TX
AIO
50
Figure 1: WT41-E pin out
PIN
NUMBER
PAD TYPE DESCRIPTION
NC 1, 52 Not connected
Pins 1 and 52 (GND) have been removed
from the module.
RESET 33
Input, weak internal pull-
up
Active low reset. Keep low for >5 ms
to cause a reset
GND
2-10, 16,
23,24,26-
28, 30,
31,36,44-
49, 53-59
GND GND
RF 51 RF output
RF output for WT41-N. For WT41-A
and WT41-E this pin is not connected
RFGND 50 GND
RF ground. Connected to GND internally to
the module.
VDD_PA 11 Supply voltage
Supply voltage for the RF power amplifier
and the low noise amplifier of the module
VDD 32 Supply voltage
Supply voltage for BC4 and the flash
memory
Table 1: Supply and RF Terminal Descriptions