LAPIS Semiconductor ML620Q151A User Manual page 8

2. Function of Reference Board
2.1 Power Circuit
Power supply for VDD is selectable by PWR jumper (uEASE/USR).
Power supply for VREF is selectable by VREF jumper (VDD/USR)
UVREF
(CN1)
VREF
UVDD
UVDD
(CN3)
1
VTREF
2
VPP 3
4
SCLK 5
6
7
SDATA
8
9
VDDL
10
NC
11
12
13
3.3VOUT
14
NC
Connector for uEASE (CNUE)
[Note]
When selecting "USR" on the PWR jumper and connecting uEASE, connect the uEASE at first and power up the
user application system the second. As well, power off the user application system at first and power off the uEASE
the second.
When selecting "VREFF" on the VREF jumper and conencting uEASE, connect the uEASE at first and power up the
user application system the second. As well, power off the user application system at first and power off the uEASE
the second.
When selecting "USR" on the MODE jumper, uEASE is not available to use and instead P14/TEST0 pin on the
microcontroller is available to use.
FEBL620Q150ARB-01
USR
VREF
1uF
VDD
2.2uF
USR
PWR
uE
VSS
ML620Q150A Series Reference Board User's Manual
ML610Q150A series
Device or IC Socket
VDD TEST1_N TEST1_N
PP17
MODE
uE
Fig.4 Power Circuit
FEBL620Q150ARB-01
P14/TEST0 VDDL
PP16
2.2uF
USR
0.8mm
1608 size pad
VDDL1
P14/TEST0
P14/TEST0
(CN4)
(CN4)
7