h8s-2158 Renesas Electronics Corporation., h8s-2158 Datasheet - Page 60

• Manufacturer Part Number: h8s-2158
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Section 1 Overview
1.3.3
Table 1.2
Rev. 3.00 Jan 25, 2006 page 8 of 872
REJ09B0286-0300
Type
Power
supply
Clock
Operating
mode
control
System
control
Pin Functions
Pin Functions
Symbol
VCC
VCL
VSS
XTAL
EXTAL
EXCL
X1
X2
MD2
MD1
MD0
RES
RESO
STBY
FWE
Pin No.
TBP-112A
G8, G9
E3
F4, G1
E8, D10
C11, B5
C5
B1
C2
G3
G3
E1
E2
C1
D3
D2
B2
C3
E4
A2
I/O
Input
Input
Input
Input
Input
Output
Input
Input
Input
Input
Input
Output
Input
Input
Name and Function
Power supply pins. Connect all these
pins to the system power supply.
Power supply pin. Connect this pin to
VCC.
Ground pins. Connect all these pins to
the system power supply (0 V).
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 26,
Clock Pulse Generator.
Supplies the system clock to external
devices.
32.768-kHz external clock for subclock
should be supplied.
For connection to a crystal resonator. An
external clock can be supplied from the
X2 pin. For an example of crystal
resonator connection, see section 26,
Clock Pulse Generator.
These pins set the operating mode.
Inputs at these pins should not be
changed during operation.
Reset pin. When this pin is low, the chip
is reset.
Outputs a reset signal to an external
device.
When this pin is low, a transition is made
to hardware standby mode.
Pin for use by flash memory.