LAPIS Semiconductor ML610421, User Manual, Page: 43 / 437

ML610Q421/ML610Q422/ML610421 User’s Manual
Chapter 1 Overview
1 – 28
1.3.4 Termination of Unused Pins
Table 1-5 shows methods of terminating the unused pins.
Table 1-5 Termination of Unused Pins
Pin Recommended pin termination
V
PP
*1
Open
AV
DD
V
SS
AV
SS
V
SS
V
REF
V
SS
AIN0, AIN1 Open
V
L1
, V
L2
, V
L3
, V
L4
Open
C1, C2, C3, C4 Open
RESET_N Open
TEST Open
NMI
Open
P00 to P03 V
DD
or V
SS
P10 to P11
V
DD
P20 to P22 Open
P30 to P35
Open
P40 to P47 Open
PA0 to PA7 *
2
Open
COM0 to 7
Open
COM8 to 15 *
3
Open
SEG0 to 49
Open
*
1
：
ML610Q421/ML610Q422 only
*
2
：
ML610Q421/ML610421 only
*
3
：
ML610Q422 only
Note:
It is recommended to set the unused input ports and input/output ports to the inputs with pull-down resistors/pull-up
resistors or the output mode since the supply current may become excessively large if the pins are left open in the high
impedance input setting.