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(19) RESET (Reset) ··· input
RESET input is asynchronous input for a signal that has a constant low-level width regardless of the operating
clock's status. When this signal is input, a system reset is executed as the first priority ahead of all other
operations.
In addition to being used for ordinary initialization/start operations, this pin can also be used to release a power
save mode (HALT, IDLE, or software STOP).
(20) X1, X2 (Crystal) ··· input
These pins are used to connect the resonator that generates the system clock.
An external clock source can be referenced by connecting the external clock input to the X1 pin and leaving
the X2 pin open.
(21) CV
(Power Supply for Clock Generator)
DD
This pin supplies positive power to the clock generator.
(22) CV
(Ground for Clock Generator)
SS
This is the ground pin of the clock generator.
(23) V
(Power Supply for Internal Unit)
DD
These are the positive power supply pins for each internal unit. All the V
positive power source (3.3 V).
(24) HV
(Power Supply for External Pins)
DD
These are the positive power supply pins for external pins. All the HV
positive power source (5 V to 3.3 V).
(25) V
(Ground)
SS
These are ground pins. All the V
(26) AV
(Analog V
)
DD
DD
This is the analog power supply pin for the A/D converter.
(27) AV
(Analog V
)
SS
SS
This is the ground pin for the A/D converter.
(28) AV
(Analog Reference Voltage) ··· input
REF
This is the reference voltage supply pin for the A/D converter.
(29) V
(Programming Power Supply)
PP
This is the positive power supply pin used for flash memory programming mode.
This pin is used for µ PD70F3102 and 70F3102A.
64
CHAPTER 2 PIN FUNCTIONS
pins should be connected to ground.
SS
User's Manual U12688EJ4V0UM00
pins should be connected to a
DD
pins should be connected to a
DD
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