HD6417660 RENESAS [Renesas Technology Corp], HD6417660 Datasheet - Page 59

• Manufacturer Part Number: HD6417660
• Description: Renesas 32-Bit RISC Microcomputer
• Manufacturer: RENESAS [Renesas Technology Corp]

1.4
Table 1.3 lists the pin functions.
Table 1.3
Classification
Power supply
Pin Functions
Pin Functions
Symbol
V
Vcc (internal)
Vcc (I/O)
Vss
TEST_REG
REG_PD_MAIN Input/NC Power supply
REG_PD_ BGR Input/NC Power supply
DD
*
1
I/O
Output/
Input
Input
Input
Input
Input
Name
Power supply
Power supply
Power supply
Ground
Power supply
selection
control
control
Function
Power output of the built-in
regulator, or power input from an
external power supply (for internal
circuit). A pin function is specified
with the TEST_REG pin.
Power supply for internal regulator.
Connect all Vcc pins to the system
power supply. There will be no
operation if any pins are open.
Power supply for I/O pins. Connect
all Vcc pins to the system power
supply. There will be no operation
if any pins are open.
Ground pin. Connect all Vss pins to
the system power supply (0 V).
There will be no operation if any
pins are open.
Built-in regulator selection pin. The
built-in power supply regulator is
used when this pin is high, external
power input is used when this pin
is low for the internal power
(V
should not be changed during
operation
Built-in regulator control. This pin
should be fixed to high when the
external power supply is used for
the internal power (V
This pin should be open when the
built-in power supply regulator is
used.
Built-in regulator control. This pin
should be fixed to high when the
external power supply is used for
the internal power (V
This pin should be open when the
built-in power supply regulator is
used.
DD
Rev. 1.00, 02/04, page 21 of 804
=1.5V). The level of this pin
DD
DD
=1.5V).
=1.5V).