h8s-2172 Renesas Electronics Corporation., h8s-2172 Datasheet - Page 40

• Manufacturer Part Number: h8s-2172
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family H8s-2100 Series
• Manufacturer: Renesas Electronics Corporation.

1.3.3
Table 1.2 lists the pin functions.
Table 1.2
Rev. 2.00, 03/04, page 8 of 534
Type
Power
Clock
Operating
mode control
System
control
Pin Functions
Pin Functions
Symbol
V
V
V
XTAL
EXTAL
φ
MD2
MD1
RES
STBY
FWE
CC
SS
CL
Pin No.
14, 42,
68, 87
7, 11, 40,
70, 90
9
13
12
15
3
4
10
8
88
I/O
Input
Input
Output The V
Input
Input
Output Supplies the system clock to external devices.
Input
Input
Input
Input
Function
For connection to the power supply. V
be connected to the system power supply.
For connection to ground. V
connected to the system power supply (0 V).
down power. Connect this pin to V
external capacitor to stabilize the internal step-down
power.
For connection to a crystal resonator. See section
15, Clock Pulse Generator for typical connection
diagrams for a crystal resonator and external clock
input.
For connection to a crystal resonator. The EXTAL
pin can also input an external clock. See section 15,
Clock Pulse Generator for typical connection
diagrams for a crystal resonator and external clock
input.
These pins set the operating mode. These pins
should not be changed while the MCU is operating.
Reset pin. When this pin is driven low, the chip is
reset.
When this pin is driven low, a transition is made to
hardware standby mode.
This pin is only for the flash memory. This pin is
available only in the flash memory version.
CL
is an external capacity pin for internal step-
SS
pins should be
SS
through the
CC
pins should