KNA-DV
2200
9
Pin No.
Pin Name
I/O
Description
Processing Operation
54
D7
I/O
Data bus
55
CKE
O
Clock enable
56
VDDQ
-
Positive power supply connection terminal (+3.3V)
Connected to VCC3 lines.
57
VSSQ
-
GND connection terminal
Connected to GND lines.
58
WE5/CAS5/DQM5
O
Not used (N.C.)
59
WE4/CAS4/DQM4
O
Not used (N.C.)
60
WE1/CAS1/DQM1
O
D15~D0 choice output
61
WE0/CAS0/ DQM0
O
D15~D0 choice output
62
A17
O
Address bus
63
A16
O
Address bus
64
A15
O
Address bus
65
VDD
-
Positive power supply connection terminal (+1.8V)
Connected to VCC1.8 lines.
66
VSS
-
GND connection terminal
Connected to GND lines.
67
A14
O
Address bus
68
A13
O
Address bus
69
VDDQ
-
Positive power supply connection terminal (+3.3V)
Connected to VCC3 lines.
70
VSSQ
-
GND connection terminal
Connected to GND lines.
71
A12
O
Address bus
72
A11
O
Address bus
73
A10
O
Address bus
74
A9
O
Address bus
75
A8
O
Address bus
76
A7
O
Address bus
77
CKIO
O
Clock output
78
VDDQ
-
Positive power supply connection terminal (+3.3V)
Connected to VCC3 lines.
79
VSSQ
-
GND connection terminal
Connected to GND lines.
80
A6
O
Address bus
81
A5
O
Address bus
82
A4
O
Address bus
83
A3
O
Address bus
84
A2
O
Address bus
85
DRAK1
O
Not used (N.C.)
86
DRAK0
O
Not used (N.C.)
87
VDDQ
-
Positive power supply connection terminal (+3.3V)
Connected to VCC3 lines.
88
VSSQ
-
GND connection terminal
Connected to GND lines.
89
CS3
O
Chip select 3 output
Lo : Selected (SDRAM)
90
CS2
O
Chip select 2 output
Not used (N.C.)
91
VDD
-
Positive power supply connection terminal (+1.8V)
Connected to VCC1.8 lines.
92
VSS
-
GND connection terminal
Connected to GND lines.
93
RAS
O
SDRAM RAS control output
94
RD/CASS/FRAME
O
SDRAM CAS control output
95
RD/WR
O
Read/Write control output
96
WE2/CAS2/DQM2/ICIORD
O
D31~D16 choice output
97
WE3/CAS3/DQM3/ICIOWR
O
D31~D16 choice output
MICROCOMPUTER’S TERMINAL DESCRIPTION