Datasheet

Section 1 Overview
Rev. 6.00 Mar. 18, 2010 Page 44 of 982
REJ09B0054-0600
1.3.3 Pin Functions
Table 1.6 lists the pin functions of the H8S/2258 Group. Table 1.7 lists the pin functions of the
H8S/2239 Group and H8S/2238 Group. Table 1.8 lists the pin functions of the H8S/2237 Group
and H8S/2227 Group.
Table 1.6 Pin Functions of H8S/2258 Group
Pin No.
Type Symbol
TFP-100B
TFP-100BV
FP-100B
FP-100BV
FP-100A
FP-100AV I/O Function
Power
supply
VCC 62 65 Input For connection to the power supply.
Connect all V
CC
pins to the system power
supply.
CVCC 12 15 Input Connect a 0.1-µF stabilization capacitance
between this pin and ground. Permanent
damage on the chip may result if the
absolute maximum rating of CV
CC
4.3 V is
exceeded. Must not connect the 5 V
external power supply to this pin.
See section 25, Power Supply Circuit, for
connection examples.
VSS 14
64
17
67
Input For connection to the power supply (0 V).
Connect all VSS pins to the system power
supply (0 V).
Clock XTAL 63 66 Input For connection to a crystal resonator. For
examples of crystal resonator connection
and external clock input, see section 23,
Clock Pulse Generator.
EXTAL 65 68 Input For connection to a crystal resonator. This
pin can be also used for external clock
input. For examples of crystal resonator
connection and external clock input, see
section 23, Clock Pulse Generator.
OSC1 58 61 Input Connects to a 32.768 kHz crystal
resonator. See section 23, Clock Pulse
Generator, for typical connection diagrams
for a crystal resonator.