PEB 2091
PEF 2091
Pin Descriptions
Pin No.
P-LCC-44 T-QFP64
M-QFP64
Pin No.
Symbol Input (I)
Output (O)
Function
39
38
25
62
61
44
not used I/O
(Serial mode) tie to GND.
D5
Data bus pin (demultiplexed modes)
AD5
Address/Data bus pin (Multiplexed
mode)
not used I/O
(Serial mode) tie to GND.
D6
Data bus pin (demultiplexed modes)
AD6
Address/Data bus pin (Multiplexed
mode)
not used I/O
(Serial mode) tie to GND.
D7
Data bus pin (demultiplexed modes)
AD7
Address/Data bus pin (Multiplexed
mode)
2.2.2.3 µP Control Pins
19
36
10
32
INT
I/O
I
Interrupt line (Multiplexed,
demultiplexed and serial modes): Low
active.
3
CS
Chip select (Multiplexed,
demultiplexed and serial modes): Low
active.
17
not used I
WR
(Serial mode) tie to GND.
Write (Siemens/Intel multiplexed and
demultiplexed modes): indicates a
write operation, active low.
R/W
Read/Write (Motorola demultiplexed
mode): indicates a read (high) or write
(low) operation.
Semiconductor Group
42
Data Sheet 01.99
INFINEON [ Infineon ]
