HD6417641 RENESAS [Renesas Technology Corp], HD6417641 Datasheet - Page 67

• Manufacturer Part Number: HD6417641
• Manufacturer: RENESAS [Renesas Technology Corp]

Notes: Treatment of unused pins: All the I/O buffers except PTG10, PTG9, and PTG 7 to PTG 0
No.
(BGA256)
C6
A4
D5
B6
D4
A3
B4
A2
C3
B5
C5
C4
B3
A1
(IIC2 and analog pins) have weak keepers. Weak-keeper circuits are provided on
input/output pins, and fix the pin inputs to high or low level when the pins are not driven
externally. Unused pins that are provided weak-keeper circuits need not to be fixed their
input levels. Fix unused pins that are not provided weak-keeper circuits to high or low level.
1. These pins are not real power supply for LSI, but each pin should be supplied each
2. Weak-keeper circuits are not provided on the I/O buffer pins. Accordingly, pull the pins
3. H3 and H4 are a pair of power-supply pins located in the nearest position to the USB
specified voltage for correct action.
up or down when they are not in use. Furthermore, do not apply intermediate voltages
to these pins when you are using them as port input pins.
module in this LSI.
Insert a bypass capacitor to the pair of pins to improve the electrical characteristic for
the USB input/output.
Pin Name
A1
A0/PTA[0]
Vcc
D15
Vss
VssQ
D14
VccQ
D13
D12
D11
D10
D9
D8
Description
Address bus
Address bus/Port A
Power supply (1.8V)
Data bus
Ground (0V)
Ground for I/O circuits (0V)
Data bus
Power supply for I/O circuits (3.3V)
Data bus
Data bus
Data bus
Data bus
Data bus
Data bus
Rev. 4.00 Sep. 14, 2005 Page 17 of 982
Section 1 Overview
REJ09B0023-0400