SH7262/SH7264 Group
Hardware Design Guide
REJ06B0999-0100 Rev. 1.00
Page 2 of 36
Jun. 30, 2010
1. Power
Supplies
1.1 Power
Supplies
CPU core voltage is between 1.1 V and 1.3 V, and I/O power supply voltage is between 3.0 V and 3.6 V. This LSI
(SH7264) uses both digital and analog power supplies. Place the digital circuit and analog circuit as far as possible on
the board.
Table 1 lists the digital power supplies. Table 2 lists the analog power supplies. Figure 1 describes the note on using the
PLL oscillator circuit.
Table 1 Digital Power Supplies
Symbol Name
Voltage
Range
Description
Vcc
Power Supply
1.1 to 1.3 V
Power supply pin
Connect all Vcc pins to the system power
supply. The system does not work when any
of those pins are open.
Vss
Ground
0 V
Ground pin
Connect all Vss pins to the system power
supply (0 V). The system does not work
when any of those pins are open.
PVcc
I/O circuit power supply
3.0 to 3.6 V
Power supply pin for I/O pins. Connect all
PVcc pins to the system power supply. The
system does not work when any of those
pins are open.
USBDPVcc
(2)
Transceiver digital pin
power supply
3.0 to 3.6 V
Power supply for USB pins
USBDPVss
(3)
Transceiver digital pin
ground
0 V
Ground for USB pins
USBDVcc
(1)
Transceiver digital core
power supply
1.1 to 1.3 V
Power supply for USB core
USBDVss
(3)
Transceiver digital core
ground
0 V
Ground for USB core
USBUVcc
(1)
Power supply for 480-
MHz USB 2.0
host/function modules
1.1 to 1.3 V
Power supply for 480-MHz modules
USBUVss
(3)
Ground for 480-MHz
USB 2.0 host/function
modules
0 V
Ground for 480-MHz modules
Notes: 1. USBAVcc, USBDVcc, and USBUVcc must be at the same electric potential as the Vcc.
2. USBAPVcc and USBDPVcc must be at the same electric potential as the PVcc.
3. USBAVss, USBDVss, USBUVss, USBAPVss, and USBDPVss must be at the same potential as
the Vss.