H8S2117R Datasheet, PDF (45/1024 Pages) Renesas Technology Corp – 16-Bit Single-Chip Microcomputer H8S Family / H8S/2100 Series

Section 1 Overview
1.4.3 Pin Functions
Table 1.4 Pin Functions
Pin No.
Type
Symbol TFP-144V BP-176V TLP-145V I/O Name and Function
Power
supply
VCC
1, 36, 86 A1, J15, B1, M1,
P1, P2 H10
Input
Power supply pins. Connect all
these pins to the system power
supply. Connect the bypass
capacitor between VCC and VSS
(that is located near these pins).
VCL 13
F1
E1
Input
External capacitance pin for
internal step-down power. Connect
this pin to VSS through an external
capacitor (that is located near this
pin) to stabilize internal step-down
power.
VSS
7, 42, 95,
111, 139
D1, D2, D2, L3,
P4, R4, F10, B11,
F12, F13, C5
B13,
A13, A4,
B4
Input
Ground pins. Connect all these
pins to the system power supply
(0 V).
Clock XTAL 143
A2
A3
EXTAL 144
B2
A2
Input
Input
For connection to a crystal
resonator. An external clock can be
supplied from the EXTAL pin. For
an example of crystal resonator
connection, see section 25, Clock
Pulse Generator.
φ
18
H1
F4
Output Supplies the system clock to
external devices.
EXCL 18
ExEXCL 32
H1
F4
M3
K1
Input
Input
32.768 kHz external sub clock
should be supplied. To which pin
the external clock is input can be
selected from the EXCL or
ExEXCL pin.
Operating MD2 25
mode MD1 9
control
K1
H1
E2
D1
Input
These pins set the operating mode.
Inputs at these pins should not be
changed during operation.
System RES 8
control
E3
D3
Input Reset pin. When this pin is low, the
chip is reset.
Rev. 1.00 Apr. 28, 2008 Page 19 of 994
REJ09B0452-0100