Datasheet

Section 1 Overview
Page 18 of 982 REJ09B0465-0300 Rev. 3.00
Sep 17, 2010
H8S/20103, H8S/20203, H8S/20223, H8S/20115, H8S/20215, H8S/20235 Group
Pin No.
Classification Symbol
H8S/20103
and
H8S/20115
Groups
H8S/20203,
H8S/20223,
H8S/20215,
and H8S/20235
Groups I/O Description
TXD
TXD_2
TXD_3
46
50
13
54
39
17
Output Output pins for data
transmission.
RXD
RXD_2
RXD_3
45
49
14
53
40
18
Input Input pins for data
reception.
Serial
communication
interface 3
(SCI3)
SCK3
SCK3_2
SCK3_3
44
48
15
52
41
19
I/O Input/output pins for clock
signals.
I
2
C bus
interface 2
(IIC2)
SDA 26 30 I/O Input/output pin for I
2
C
data. Bus can be directly
driven by the NMOS
open-drain output. When
this pin is used, an
external pull-up resistor is
required.
SCL 27 29 I/O Input/output pin for I
2
C
clock signal. Bus can be
directly driven by the
NMOS open-drain output.
When this pin is used, an
external pull-up resistor is
required.
SCS 26 30 I/O Input/output pin for the
chip select signal.
SSCK 25 31 I/O Input/output pin for the
clock signal.
SSI 27 29 I/O Input/output pin for data
transmission/reception.
Synchronous
serial
communication
unit (SSU)
SSO 24 32 I/O Input/output pin for data
transmission/reception.