HD64F2149 Datasheet, PDF (56/1035 Pages) Renesas Technology Corp – Hitachi 16-Bit Single-Chip Microcomputer

1.3.3 Pin Functions
Table 1.3 summarizes the functions of the H8S/2149 and H8S/2169 pins.
Table 1.3 Pin Functions
Type
Power
Clock
Symbol
VCC
VCL
VCCB
VSS
XTAL
EXTAL
ø
EXCL
X1
X2
Pin No.
FP-100B,
TFP-100B TFP-144 I/O
Name and Function
59
1, 86 Input Power: For connection to the power
supply. Connect the VCC pin to the system
power supply.
9
13
Input Power supply stabilization capacitance:
Connect the VCL pin to the system power
supply together with the VCC pin.
4
36
Input Input/output buffer power: The power
supply for the port A, E, F, and G
input/output buffer.
15, 70, 71, 7, 42, 95, Input
92
111, 139
Ground: For connection to the power
supply (0 V). Connect all VSS pins to the
system power supply (0 V).
2
143
Input Connected to a crystal oscillator. See
section 23, Clock Pulse Generator, for
typical connection diagrams for a crystal
oscillator and external clock input.
3
144
Input Connected to a crystal oscillator. The
EXTAL pin can also input an external
clock. See section 23, Clock Pulse
Generator, for typical connection diagrams
for a crystal oscillator and external clock
input.
17
Output System clock: Supplies the system clock
to external devices.
17
18
Input External subclock input: Input a 32.768
kHz external subclock.
—
140
Input Leave open.
—
141
Input Leave open.
22