External Power Supply; Table 11: Tk78K0R/Lh3+Lcd Solder Short Pads - NEC 78K0R/L 3 Sense it! Series User Manual

78K0R/Lx3 – Sense it!
P111
P150
P157
VLC0

2.10 External Power Supply

A Power supply other than USB is available by using the terminal (J2: VDD, J3: GND) or button battery
socket (not mounted) on the back side of substrate. Set the JP1 to 2-3 short and connect a stabilized power
supply to the terminal pins J2 (VDD) and J3 (GND). Also, you can mount battery socket on J4 to supply
power from battery.
Caution: Do not supply power from terminal while using a battery. If the terminal (J2: VDD) and
the anode of the battery is connected, the battery will be destroyed.
_______________________________________________________________________________________________
Open
Short Short
Open
Short Short
Open
Short Short
Open
Short Short
Open

Table 11: TK78K0R/LH3+LCD Solder Short Pads

Support battery socket: KEYSTONE 1060
User's Manual
Use port110 for other purpose
Connect port111 to SW1
Use port111 for other purpose
Connect port150 to analog circuit
Use port150 for other purpose
Connect port157 to GND
Use port157 for other purpose
Connect to VDD when SW4-1 is set to "ON"
Connect VLC0 not to VDD
U20191EE1V0UM00
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