Datasheet

Section 1 Overview
Rev. 3.00 Sep. 14, 2006 Page 9 of 408
REJ09B0105-0300
1.4 Pin Functions
Table 1.1 Pin Functions
Pin No.
Type Symbol
FP-32D,
32P4B FP-32A I/O Functions
V
CC
6 2 Input Power supply pin. Connect this pin
to the system power supply.
V
SS
9 5 Input Ground pin. Connect this pin to the
system power supply (0 V).
AV
CC
5 1 Input Analog power supply pin for the
A/D converter. When the A/D
converter is not used, connect this
pin to the system power supply.
Power
source
V
CL
12 8 Input Internal step-down power supply
pin. Connect a capacitor of around
0.1 µF between this pin and the Vss
pin for stabilization.
OSC1 11 7 Input Clock
OSC2/
CLKOUT
10 6 Output
These pins are connected to a
crystal or ceramic resonator for
system clocks, or can be used to
input an external clock. When an
on-chip oscillator is used, system
clocks can be output to OSC2. See
section 5, Clock Pulse Generators,
for a typical connection.
RES 7 3 Input Reset pin. The pull-up resistor (typ.
150 kΩ) is incorporated. When
driven low, the chip is reset.
System
control
TEST 8 4 Input Test pin. Connect this pin to Vss.
NMI 13 9 Input Non-maskable interrupt request
input pin. Be sure to pull-up by a
pull-up resistor.
IRQ0,
IRQ3
20, 14 16, 10 Input External interrupt request input
pins. Can select the rising or falling
edge.
External
interrupt
WKP5 21 17 Input External interrupt request input pin.
Can select the rising or falling edge.