3-Sep 2021 Ver.0.91
TAIYO YUDEN CO., LTD.
TAIYO YUDEN CO., LTD.
18/198
EYSKJNAWB-VX
Control No.
HD-BA-A200087 (1/1)
Control name
ピンレイアウト
Pin Descriptions
Pin
Pin name
Pin function
Description
1
GND
Ground
Ground pin. (0 V)
2
XL1
Analog input
Connection for 32.768kHz crystal (LFXO).
(Factory default : Using an internal RC oscillator)
3
XL2
Analog input
Connection for 32.768kHz crystal (LFXO).
(Factory default : Using an internal RC oscillator)
4
P0.04
DTM mode
Enter DTM Mode
5
VDD
Power
Power supply pin.
6
DEC4
Power
1V3 regulator supply decoupling.
7
P0.30
Mode Select
Data transfer method setting
8
P0.28
Power Save
Enter Power Save Mode
9
GND
Ground
Ground pin. (0 V)
10
P0.02
Factory reset
Application will revert to default settings.
11
P0.03
AIN1
Deep sleep
Enter deep sleep mode
12
GND
Ground
Ground pin. (0 V)
13
OUT_ANT
Antenna In/Out
Internal antenna. It should be connected to
Pin 14
OUT_MOD for normal operation.
14
OUT_MOD
RF In/Out
RF I/O pin. It should be connected to
Pin 13
OUT_ANT
for normal operation.
15
GND
Ground
Ground pin. (0 V)
16
SWDIO
Digital I/O
Serial Wire Debug I/O for debug and programming
17
SWDCLK
Digital input
Serial Wire Debug clock input for debug and
programming
18
P0.18
Reset
The device will be held in RESET while this pin is held
low.
19
P0.08
UART RX
Data input
20
GND
Ground
Ground pin. (0 V)
21
P0.06
UART TX
Data output
22
P0.07
UART CTS
Clear to send input signal
23
P0.05
UART RTS
Ready to send output signal
24
DCC
Power
DC/DC converter output pin.
25
NFC1
P0.09
Not Connected Reserved for future use
26
NFC2
P0.10
Not Connected Reserved for future use
27
P0.29
DFU mode
Enter DFU Mode
28
GND
Ground
Ground pin. (0 V)